Merge pull request #3504 from duianto:patch-1

PiperOrigin-RevId: 390486428
diff --git a/docs/advanced.md b/docs/advanced.md
index 8dff5ba..1b99964 100644
--- a/docs/advanced.md
+++ b/docs/advanced.md
@@ -202,10 +202,9 @@
 
 to assert that types `T1` and `T2` are the same. The function does nothing if
 the assertion is satisfied. If the types are different, the function call will
-fail to compile, the compiler error message will say that
-`T1 and T2 are not the same type` and most likely (depending on the compiler)
-show you the actual values of `T1` and `T2`. This is mainly useful inside
-template code.
+fail to compile, the compiler error message will say that `T1 and T2 are not the
+same type` and most likely (depending on the compiler) show you the actual
+values of `T1` and `T2`. This is mainly useful inside template code.
 
 **Caveat**: When used inside a member function of a class template or a function
 template, `StaticAssertTypeEq<T1, T2>()` is effective only if the function is
@@ -383,10 +382,10 @@
 ## Death Tests
 
 In many applications, there are assertions that can cause application failure if
-a condition is not met. These sanity checks, which ensure that the program is in
-a known good state, are there to fail at the earliest possible time after some
-program state is corrupted. If the assertion checks the wrong condition, then
-the program may proceed in an erroneous state, which could lead to memory
+a condition is not met. These consistency checks, which ensure that the program
+is in a known good state, are there to fail at the earliest possible time after
+some program state is corrupted. If the assertion checks the wrong condition,
+then the program may proceed in an erroneous state, which could lead to memory
 corruption, security holes, or worse. Hence it is vitally important to test that
 such assertion statements work as expected.
 
@@ -568,12 +567,12 @@
 ```c++
 int main(int argc, char** argv) {
   testing::InitGoogleTest(&argc, argv);
-  testing::FLAGS_gtest_death_test_style = "fast";
+  GTEST_FLAG_SET(gtest_death_test_style, "fast");
   return RUN_ALL_TESTS();
 }
 
 TEST(MyDeathTest, TestOne) {
-  testing::FLAGS_gtest_death_test_style = "threadsafe";
+  GTEST_FLAG_SET(gtest_death_test_style, "threadsafe");
   // This test is run in the "threadsafe" style:
   ASSERT_DEATH(ThisShouldDie(), "");
 }
@@ -610,15 +609,14 @@
 test, thread problems such as deadlock are still possible in the presence of
 handlers registered with `pthread_atfork(3)`.
 
-
 ## Using Assertions in Sub-routines
 
 {: .callout .note}
 Note: If you want to put a series of test assertions in a subroutine to check
 for a complex condition, consider using
-[a custom GMock matcher](gmock_cook_book.md#NewMatchers)
-instead. This lets you provide a more readable error message in case of failure
-and avoid all of the issues described below.
+[a custom GMock matcher](gmock_cook_book.md#NewMatchers) instead. This lets you
+provide a more readable error message in case of failure and avoid all of the
+issues described below.
 
 ### Adding Traces to Assertions
 
@@ -631,6 +629,7 @@
 ```c++
 SCOPED_TRACE(message);
 ```
+
 ```c++
 ScopedTrace trace("file_path", line_number, message);
 ```
@@ -1481,8 +1480,8 @@
 the exception and assert on it. But googletest doesn't use exceptions, so how do
 we test that a piece of code generates an expected failure?
 
-`"gtest/gtest-spi.h"` contains some constructs to do this. After #including this header,
-you can use
+`"gtest/gtest-spi.h"` contains some constructs to do this.
+After #including this header, you can use
 
 ```c++
   EXPECT_FATAL_FAILURE(statement, substring);
@@ -1592,6 +1591,7 @@
   return RUN_ALL_TESTS();
 }
 ```
+
 ## Getting the Current Test's Name
 
 Sometimes a function may need to know the name of the currently running test.
@@ -1816,8 +1816,7 @@
 cases (e.g. iterative test development & execution) it may be desirable stop
 test execution upon first failure (trading improved latency for completeness).
 If `GTEST_FAIL_FAST` environment variable or `--gtest_fail_fast` flag is set,
-the test runner will stop execution as soon as the first test failure is
-found.
+the test runner will stop execution as soon as the first test failure is found.
 
 #### Temporarily Disabling Tests
 
@@ -1965,8 +1964,6 @@
 the test program with `--gtest_print_utf8=0` or set the `GTEST_PRINT_UTF8`
 environment variable to `0`.
 
-
-
 #### Generating an XML Report
 
 googletest can emit a detailed XML report to a file in addition to its normal
@@ -2253,12 +2250,11 @@
 
 #### Detecting Test Premature Exit
 
-Google Test implements the _premature-exit-file_ protocol for test runners
-to catch any kind of unexpected exits of test programs. Upon start,
-Google Test creates the file which will be automatically deleted after
-all work has been finished. Then, the test runner can check if this file
-exists. In case the file remains undeleted, the inspected test has exited
-prematurely.
+Google Test implements the _premature-exit-file_ protocol for test runners to
+catch any kind of unexpected exits of test programs. Upon start, Google Test
+creates the file which will be automatically deleted after all work has been
+finished. Then, the test runner can check if this file exists. In case the file
+remains undeleted, the inspected test has exited prematurely.
 
 This feature is enabled only if the `TEST_PREMATURE_EXIT_FILE` environment
 variable has been set.
diff --git a/docs/faq.md b/docs/faq.md
index 9042da1..8e4fd5e 100644
--- a/docs/faq.md
+++ b/docs/faq.md
@@ -410,7 +410,6 @@
 Similarly, sometimes people spell `SetUpTestSuite()` as `SetupTestSuite()` and
 wonder why it's never called.
 
-
 ## I have several test suites which share the same test fixture logic, do I have to define a new test fixture class for each of them? This seems pretty tedious.
 
 You don't have to. Instead of
diff --git a/docs/gmock_cook_book.md b/docs/gmock_cook_book.md
index c08958e..900bcd1 100644
--- a/docs/gmock_cook_book.md
+++ b/docs/gmock_cook_book.md
@@ -1754,7 +1754,7 @@
        |
   A ---|
        |
-        +---> C ---> D
+       +---> C ---> D
 ```
 
 This means that A must occur before B and C, and C must occur before D. There's
diff --git a/docs/primer.md b/docs/primer.md
index 6d8fdf4..aecc368 100644
--- a/docs/primer.md
+++ b/docs/primer.md
@@ -162,9 +162,9 @@
 
 `TEST()` arguments go from general to specific. The *first* argument is the name
 of the test suite, and the *second* argument is the test's name within the test
-suite. Both names must be valid C++ identifiers, and they should not contain
-any underscores (`_`). A test's *full name* consists of its containing test suite and
-its individual name. Tests from different test suites can have the same
+suite. Both names must be valid C++ identifiers, and they should not contain any
+underscores (`_`). A test's *full name* consists of its containing test suite
+and its individual name. Tests from different test suites can have the same
 individual name.
 
 For example, let's take a simple integer function:
@@ -245,8 +245,8 @@
 declaration`".
 
 For each test defined with `TEST_F()`, googletest will create a *fresh* test
-fixture at runtime, immediately initialize it via `SetUp()`, run the test,
-clean up by calling `TearDown()`, and then delete the test fixture. Note that
+fixture at runtime, immediately initialize it via `SetUp()`, run the test, clean
+up by calling `TearDown()`, and then delete the test fixture. Note that
 different tests in the same test suite have different test fixture objects, and
 googletest always deletes a test fixture before it creates the next one.
 googletest does **not** reuse the same test fixture for multiple tests. Any
@@ -342,8 +342,8 @@
 
 After defining your tests, you can run them with `RUN_ALL_TESTS()`, which
 returns `0` if all the tests are successful, or `1` otherwise. Note that
-`RUN_ALL_TESTS()` runs *all tests* in your link unit--they can be from
-different test suites, or even different source files.
+`RUN_ALL_TESTS()` runs *all tests* in your link unit--they can be from different
+test suites, or even different source files.
 
 When invoked, the `RUN_ALL_TESTS()` macro:
 
@@ -456,8 +456,8 @@
 
 The `::testing::InitGoogleTest()` function parses the command line for
 googletest flags, and removes all recognized flags. This allows the user to
-control a test program's behavior via various flags, which we'll cover in
-the [AdvancedGuide](advanced.md). You **must** call this function before calling
+control a test program's behavior via various flags, which we'll cover in the
+[AdvancedGuide](advanced.md). You **must** call this function before calling
 `RUN_ALL_TESTS()`, or the flags won't be properly initialized.
 
 On Windows, `InitGoogleTest()` also works with wide strings, so it can be used
diff --git a/docs/reference/matchers.md b/docs/reference/matchers.md
index 850f9fa..a541bf8 100644
--- a/docs/reference/matchers.md
+++ b/docs/reference/matchers.md
@@ -88,16 +88,17 @@
 
 | Matcher                 | Description                                        |
 | :---------------------- | :------------------------------------------------- |
-| `ContainsRegex(string)` | `argument` matches the given regular expression.   |
-| `EndsWith(suffix)`      | `argument` ends with string `suffix`.              |
-| `HasSubstr(string)`     | `argument` contains `string` as a sub-string.      |
-| `IsEmpty()`             | `argument` is an empty string.                     |
-| `MatchesRegex(string)`  | `argument` matches the given regular expression with the match starting at the first character and ending at the last character. |
-| `StartsWith(prefix)`    | `argument` starts with string `prefix`.            |
-| `StrCaseEq(string)`     | `argument` is equal to `string`, ignoring case.    |
-| `StrCaseNe(string)`     | `argument` is not equal to `string`, ignoring case. |
-| `StrEq(string)`         | `argument` is equal to `string`.                   |
-| `StrNe(string)`         | `argument` is not equal to `string`.               |
+| `ContainsRegex(string)`  | `argument` matches the given regular expression.  |
+| `EndsWith(suffix)`       | `argument` ends with string `suffix`.             |
+| `HasSubstr(string)`      | `argument` contains `string` as a sub-string.     |
+| `IsEmpty()`              | `argument` is an empty string.                    |
+| `MatchesRegex(string)`   | `argument` matches the given regular expression with the match starting at the first character and ending at the last character. |
+| `StartsWith(prefix)`     | `argument` starts with string `prefix`.           |
+| `StrCaseEq(string)`      | `argument` is equal to `string`, ignoring case.   |
+| `StrCaseNe(string)`      | `argument` is not equal to `string`, ignoring case. |
+| `StrEq(string)`          | `argument` is equal to `string`.                  |
+| `StrNe(string)`          | `argument` is not equal to `string`.              |
+| `WhenBase64Unescaped(m)` | `argument` is a base-64 escaped string whose unescaped string matches `m`. |
 
 `ContainsRegex()` and `MatchesRegex()` take ownership of the `RE` object. They
 use the regular expression syntax defined
diff --git a/googlemock/include/gmock/gmock-function-mocker.h b/googlemock/include/gmock/gmock-function-mocker.h
index 36bab78..e6913e5 100644
--- a/googlemock/include/gmock/gmock-function-mocker.h
+++ b/googlemock/include/gmock/gmock-function-mocker.h
@@ -62,6 +62,39 @@
   }
 };
 
+constexpr bool PrefixOf(const char* a, const char* b) {
+  return *a == 0 || (*a == *b && internal::PrefixOf(a + 1, b + 1));
+}
+
+template <int N, int M>
+constexpr bool StartsWith(const char (&prefix)[N], const char (&str)[M]) {
+  return N <= M && internal::PrefixOf(prefix, str);
+}
+
+template <int N, int M>
+constexpr bool EndsWith(const char (&suffix)[N], const char (&str)[M]) {
+  return N <= M && internal::PrefixOf(suffix, str + M - N);
+}
+
+template <int N, int M>
+constexpr bool Equals(const char (&a)[N], const char (&b)[M]) {
+  return N == M && internal::PrefixOf(a, b);
+}
+
+template <int N>
+constexpr bool ValidateSpec(const char (&spec)[N]) {
+  return internal::Equals("const", spec) ||
+         internal::Equals("override", spec) ||
+         internal::Equals("final", spec) ||
+         internal::Equals("noexcept", spec) ||
+         (internal::StartsWith("noexcept(", spec) &&
+          internal::EndsWith(")", spec)) ||
+         internal::Equals("ref(&)", spec) ||
+         internal::Equals("ref(&&)", spec) ||
+         (internal::StartsWith("Calltype(", spec) &&
+          internal::EndsWith(")", spec));
+}
+
 }  // namespace internal
 
 // The style guide prohibits "using" statements in a namespace scope
@@ -84,17 +117,18 @@
 #define GMOCK_INTERNAL_MOCK_METHOD_ARG_3(_Ret, _MethodName, _Args) \
   GMOCK_INTERNAL_MOCK_METHOD_ARG_4(_Ret, _MethodName, _Args, ())
 
-#define GMOCK_INTERNAL_MOCK_METHOD_ARG_4(_Ret, _MethodName, _Args, _Spec)     \
-  GMOCK_INTERNAL_ASSERT_PARENTHESIS(_Args);                                   \
-  GMOCK_INTERNAL_ASSERT_PARENTHESIS(_Spec);                                   \
-  GMOCK_INTERNAL_ASSERT_VALID_SIGNATURE(                                      \
-      GMOCK_PP_NARG0 _Args, GMOCK_INTERNAL_SIGNATURE(_Ret, _Args));           \
-  GMOCK_INTERNAL_ASSERT_VALID_SPEC(_Spec)                                     \
-  GMOCK_INTERNAL_MOCK_METHOD_IMPL(                                            \
-      GMOCK_PP_NARG0 _Args, _MethodName, GMOCK_INTERNAL_HAS_CONST(_Spec),     \
-      GMOCK_INTERNAL_HAS_OVERRIDE(_Spec), GMOCK_INTERNAL_HAS_FINAL(_Spec),    \
-      GMOCK_INTERNAL_GET_NOEXCEPT_SPEC(_Spec),                                \
-      GMOCK_INTERNAL_GET_CALLTYPE(_Spec), GMOCK_INTERNAL_GET_REF_SPEC(_Spec), \
+#define GMOCK_INTERNAL_MOCK_METHOD_ARG_4(_Ret, _MethodName, _Args, _Spec)  \
+  GMOCK_INTERNAL_ASSERT_PARENTHESIS(_Args);                                \
+  GMOCK_INTERNAL_ASSERT_PARENTHESIS(_Spec);                                \
+  GMOCK_INTERNAL_ASSERT_VALID_SIGNATURE(                                   \
+      GMOCK_PP_NARG0 _Args, GMOCK_INTERNAL_SIGNATURE(_Ret, _Args));        \
+  GMOCK_INTERNAL_ASSERT_VALID_SPEC(_Spec)                                  \
+  GMOCK_INTERNAL_MOCK_METHOD_IMPL(                                         \
+      GMOCK_PP_NARG0 _Args, _MethodName, GMOCK_INTERNAL_HAS_CONST(_Spec),  \
+      GMOCK_INTERNAL_HAS_OVERRIDE(_Spec), GMOCK_INTERNAL_HAS_FINAL(_Spec), \
+      GMOCK_INTERNAL_GET_NOEXCEPT_SPEC(_Spec),                             \
+      GMOCK_INTERNAL_GET_CALLTYPE_SPEC(_Spec),                             \
+      GMOCK_INTERNAL_GET_REF_SPEC(_Spec),                                  \
       (GMOCK_INTERNAL_SIGNATURE(_Ret, _Args)))
 
 #define GMOCK_INTERNAL_MOCK_METHOD_ARG_5(...) \
@@ -168,7 +202,7 @@
 
 #define GMOCK_INTERNAL_EXPAND(...) __VA_ARGS__
 
-// Five Valid modifiers.
+// Valid modifiers.
 #define GMOCK_INTERNAL_HAS_CONST(_Tuple) \
   GMOCK_PP_HAS_COMMA(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_DETECT_CONST, ~, _Tuple))
 
@@ -187,6 +221,14 @@
       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_NOEXCEPT(_i, _, _elem)), \
       _elem, )
 
+#define GMOCK_INTERNAL_GET_CALLTYPE_SPEC(_Tuple) \
+  GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_CALLTYPE_SPEC_IF_CALLTYPE, ~, _Tuple)
+
+#define GMOCK_INTERNAL_CALLTYPE_SPEC_IF_CALLTYPE(_i, _, _elem)          \
+  GMOCK_PP_IF(                                                          \
+      GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_CALLTYPE(_i, _, _elem)), \
+      GMOCK_PP_CAT(GMOCK_INTERNAL_UNPACK_, _elem), )
+
 #define GMOCK_INTERNAL_GET_REF_SPEC(_Tuple) \
   GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_REF_SPEC_IF_REF, ~, _Tuple)
 
@@ -194,19 +236,25 @@
   GMOCK_PP_IF(GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_REF(_i, _, _elem)), \
               GMOCK_PP_CAT(GMOCK_INTERNAL_UNPACK_, _elem), )
 
-#define GMOCK_INTERNAL_GET_CALLTYPE(_Tuple) \
-  GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_GET_CALLTYPE_IMPL, ~, _Tuple)
-
-#define GMOCK_INTERNAL_ASSERT_VALID_SPEC_ELEMENT(_i, _, _elem)            \
-  static_assert(                                                          \
-      (GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_CONST(_i, _, _elem)) +    \
-       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_OVERRIDE(_i, _, _elem)) + \
-       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_FINAL(_i, _, _elem)) +    \
-       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_NOEXCEPT(_i, _, _elem)) + \
-       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_REF(_i, _, _elem)) +      \
-       GMOCK_INTERNAL_IS_CALLTYPE(_elem)) == 1,                           \
-      GMOCK_PP_STRINGIZE(                                                 \
+#ifdef GMOCK_INTERNAL_STRICT_SPEC_ASSERT
+#define GMOCK_INTERNAL_ASSERT_VALID_SPEC_ELEMENT(_i, _, _elem) \
+  static_assert(                                                     \
+      ::testing::internal::ValidateSpec(GMOCK_PP_STRINGIZE(_elem)),  \
+      "Token \'" GMOCK_PP_STRINGIZE(                                 \
+          _elem) "\' cannot be recognized as a valid specification " \
+                 "modifier. Is a ',' missing?");
+#else
+#define GMOCK_INTERNAL_ASSERT_VALID_SPEC_ELEMENT(_i, _, _elem)                 \
+  static_assert(                                                               \
+      (GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_CONST(_i, _, _elem)) +         \
+       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_OVERRIDE(_i, _, _elem)) +      \
+       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_FINAL(_i, _, _elem)) +         \
+       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_NOEXCEPT(_i, _, _elem)) +      \
+       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_REF(_i, _, _elem)) +           \
+       GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_CALLTYPE(_i, _, _elem))) == 1, \
+      GMOCK_PP_STRINGIZE(                                                      \
           _elem) " cannot be recognized as a valid specification modifier.");
+#endif  // GMOCK_INTERNAL_STRICT_SPEC_ASSERT
 
 // Modifiers implementation.
 #define GMOCK_INTERNAL_DETECT_CONST(_i, _, _elem) \
@@ -236,26 +284,12 @@
 
 #define GMOCK_INTERNAL_UNPACK_ref(x) x
 
-#define GMOCK_INTERNAL_GET_CALLTYPE_IMPL(_i, _, _elem)           \
-  GMOCK_PP_IF(GMOCK_INTERNAL_IS_CALLTYPE(_elem),                 \
-              GMOCK_INTERNAL_GET_VALUE_CALLTYPE, GMOCK_PP_EMPTY) \
-  (_elem)
+#define GMOCK_INTERNAL_DETECT_CALLTYPE(_i, _, _elem) \
+  GMOCK_PP_CAT(GMOCK_INTERNAL_DETECT_CALLTYPE_I_, _elem)
 
-// TODO(iserna): GMOCK_INTERNAL_IS_CALLTYPE and
-// GMOCK_INTERNAL_GET_VALUE_CALLTYPE needed more expansions to work on windows
-// maybe they can be simplified somehow.
-#define GMOCK_INTERNAL_IS_CALLTYPE(_arg) \
-  GMOCK_INTERNAL_IS_CALLTYPE_I(          \
-      GMOCK_PP_CAT(GMOCK_INTERNAL_IS_CALLTYPE_HELPER_, _arg))
-#define GMOCK_INTERNAL_IS_CALLTYPE_I(_arg) GMOCK_PP_IS_ENCLOSED_PARENS(_arg)
+#define GMOCK_INTERNAL_DETECT_CALLTYPE_I_Calltype ,
 
-#define GMOCK_INTERNAL_GET_VALUE_CALLTYPE(_arg) \
-  GMOCK_INTERNAL_GET_VALUE_CALLTYPE_I(          \
-      GMOCK_PP_CAT(GMOCK_INTERNAL_IS_CALLTYPE_HELPER_, _arg))
-#define GMOCK_INTERNAL_GET_VALUE_CALLTYPE_I(_arg) \
-  GMOCK_PP_IDENTITY _arg
-
-#define GMOCK_INTERNAL_IS_CALLTYPE_HELPER_Calltype
+#define GMOCK_INTERNAL_UNPACK_Calltype(...) __VA_ARGS__
 
 // Note: The use of `identity_t` here allows _Ret to represent return types that
 // would normally need to be specified in a different way. For example, a method
diff --git a/googlemock/include/gmock/gmock-matchers.h b/googlemock/include/gmock/gmock-matchers.h
index 8c5ccb7..244dd2d 100644
--- a/googlemock/include/gmock/gmock-matchers.h
+++ b/googlemock/include/gmock/gmock-matchers.h
@@ -1122,6 +1122,45 @@
   const StringType suffix_;
 };
 
+// Implements the polymorphic WhenBase64Unescaped(matcher) matcher, which can be
+// used as a Matcher<T> as long as T can be converted to a string.
+class WhenBase64UnescapedMatcher {
+ public:
+  using is_gtest_matcher = void;
+
+  explicit WhenBase64UnescapedMatcher(
+      const Matcher<const std::string&>& internal_matcher)
+      : internal_matcher_(internal_matcher) {}
+
+  // Matches anything that can convert to std::string.
+  template <typename MatcheeStringType>
+  bool MatchAndExplain(const MatcheeStringType& s,
+                       MatchResultListener* listener) const {
+    const std::string s2(s);  // NOLINT (needed for working with string_view).
+    std::string unescaped;
+    if (!internal::Base64Unescape(s2, &unescaped)) {
+      if (listener != nullptr) {
+        *listener << "is not a valid base64 escaped string";
+      }
+      return false;
+    }
+    return MatchPrintAndExplain(unescaped, internal_matcher_, listener);
+  }
+
+  void DescribeTo(::std::ostream* os) const {
+    *os << "matches after Base64Unescape ";
+    internal_matcher_.DescribeTo(os);
+  }
+
+  void DescribeNegationTo(::std::ostream* os) const {
+    *os << "does not match after Base64Unescape ";
+    internal_matcher_.DescribeTo(os);
+  }
+
+ private:
+  const Matcher<const std::string&> internal_matcher_;
+};
+
 // Implements a matcher that compares the two fields of a 2-tuple
 // using one of the ==, <=, <, etc, operators.  The two fields being
 // compared don't have to have the same type.
@@ -4986,6 +5025,14 @@
     const InnerMatcher& inner_matcher) {
   return internal::AddressMatcher<InnerMatcher>(inner_matcher);
 }
+
+// Matches a base64 escaped string, when the unescaped string matches the
+// internal matcher.
+template <typename MatcherType>
+internal::WhenBase64UnescapedMatcher WhenBase64Unescaped(
+    const MatcherType& internal_matcher) {
+  return internal::WhenBase64UnescapedMatcher(internal_matcher);
+}
 }  // namespace no_adl
 
 // Returns a predicate that is satisfied by anything that matches the
diff --git a/googlemock/include/gmock/internal/gmock-internal-utils.h b/googlemock/include/gmock/internal/gmock-internal-utils.h
index 2a35e4a..8ecfbf5 100644
--- a/googlemock/include/gmock/internal/gmock-internal-utils.h
+++ b/googlemock/include/gmock/internal/gmock-internal-utils.h
@@ -447,6 +447,8 @@
 template <typename R, typename... Args>
 constexpr size_t Function<R(Args...)>::ArgumentCount;
 
+bool Base64Unescape(const std::string& encoded, std::string* decoded);
+
 #ifdef _MSC_VER
 # pragma warning(pop)
 #endif
diff --git a/googlemock/src/gmock-internal-utils.cc b/googlemock/src/gmock-internal-utils.cc
index e5b5479..10f688f 100644
--- a/googlemock/src/gmock-internal-utils.cc
+++ b/googlemock/src/gmock-internal-utils.cc
@@ -37,8 +37,14 @@
 #include "gmock/internal/gmock-internal-utils.h"
 
 #include <ctype.h>
+
+#include <array>
+#include <cctype>
+#include <cstdint>
+#include <cstring>
 #include <ostream>  // NOLINT
 #include <string>
+
 #include "gmock/gmock.h"
 #include "gmock/internal/gmock-port.h"
 #include "gtest/gtest.h"
@@ -196,5 +202,53 @@
       "the variable in various places.");
 }
 
+constexpr char UnBase64Impl(char c, const char* const base64, char carry) {
+  return *base64 == 0   ? static_cast<char>(65)
+         : *base64 == c ? carry
+                        : UnBase64Impl(c, base64 + 1, carry + 1);
+}
+
+template <size_t... I>
+constexpr std::array<char, 256> UnBase64Impl(IndexSequence<I...>,
+                                             const char* const base64) {
+  return {{UnBase64Impl(I, base64, 0)...}};
+}
+
+constexpr std::array<char, 256> UnBase64(const char* const base64) {
+  return UnBase64Impl(MakeIndexSequence<256>{}, base64);
+}
+
+static constexpr char kBase64[] =
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+static constexpr std::array<char, 256> kUnBase64 = UnBase64(kBase64);
+
+bool Base64Unescape(const std::string& encoded, std::string* decoded) {
+  decoded->clear();
+  size_t encoded_len = encoded.size();
+  decoded->reserve(3 * (encoded_len / 4) + (encoded_len % 4));
+  int bit_pos = 0;
+  char dst = 0;
+  for (int src : encoded) {
+    if (std::isspace(src) || src == '=') {
+      continue;
+    }
+    char src_bin = kUnBase64[src];
+    if (src_bin >= 64) {
+      decoded->clear();
+      return false;
+    }
+    if (bit_pos == 0) {
+      dst |= src_bin << 2;
+      bit_pos = 6;
+    } else {
+      dst |= static_cast<char>(src_bin >> (bit_pos - 2));
+      decoded->push_back(dst);
+      dst = static_cast<char>(src_bin << (10 - bit_pos));
+      bit_pos = (bit_pos + 6) % 8;
+    }
+  }
+  return true;
+}
+
 }  // namespace internal
 }  // namespace testing
diff --git a/googlemock/test/gmock-internal-utils_test.cc b/googlemock/test/gmock-internal-utils_test.cc
index bd7e335..b30eb8c 100644
--- a/googlemock/test/gmock-internal-utils_test.cc
+++ b/googlemock/test/gmock-internal-utils_test.cc
@@ -716,6 +716,46 @@
                    F::MakeResultIgnoredValue>::value));
 }
 
+TEST(Base64Unescape, InvalidString) {
+  std::string unescaped;
+  EXPECT_FALSE(Base64Unescape("(invalid)", &unescaped));
+}
+
+TEST(Base64Unescape, ShortString) {
+  std::string unescaped;
+  EXPECT_TRUE(Base64Unescape("SGVsbG8gd29ybGQh", &unescaped));
+  EXPECT_EQ("Hello world!", unescaped);
+}
+
+TEST(Base64Unescape, ShortStringWithPadding) {
+  std::string unescaped;
+  EXPECT_TRUE(Base64Unescape("SGVsbG8gd29ybGQ=", &unescaped));
+  EXPECT_EQ("Hello world", unescaped);
+}
+
+TEST(Base64Unescape, ShortStringWithoutPadding) {
+  std::string unescaped;
+  EXPECT_TRUE(Base64Unescape("SGVsbG8gd29ybGQ", &unescaped));
+  EXPECT_EQ("Hello world", unescaped);
+}
+
+TEST(Base64Unescape, LongStringWithWhiteSpaces) {
+  std::string escaped =
+      R"(TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz
+  IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg
+  dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu
+  dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo
+  ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=)";
+  std::string expected =
+      "Man is distinguished, not only by his reason, but by this singular "
+      "passion from other animals, which is a lust of the mind, that by a "
+      "perseverance of delight in the continued and indefatigable generation "
+      "of knowledge, exceeds the short vehemence of any carnal pleasure.";
+  std::string unescaped;
+  EXPECT_TRUE(Base64Unescape(escaped, &unescaped));
+  EXPECT_EQ(expected, unescaped);
+}
+
 }  // namespace
 }  // namespace internal
 }  // namespace testing
diff --git a/googlemock/test/gmock-matchers_test.cc b/googlemock/test/gmock-matchers_test.cc
index e6f280d..cd5ae1a 100644
--- a/googlemock/test/gmock-matchers_test.cc
+++ b/googlemock/test/gmock-matchers_test.cc
@@ -1866,6 +1866,33 @@
   EXPECT_EQ("ends with \"Hi\"", Describe(m));
 }
 
+// Tests WhenBase64Unescaped.
+
+TEST(WhenBase64UnescapedTest, MatchesUnescapedBase64Strings) {
+  const Matcher<const char*> m1 = WhenBase64Unescaped(EndsWith("!"));
+  EXPECT_FALSE(m1.Matches("invalid base64"));
+  EXPECT_FALSE(m1.Matches("aGVsbG8gd29ybGQ="));  // hello world
+  EXPECT_TRUE(m1.Matches("aGVsbG8gd29ybGQh"));   // hello world!
+
+  const Matcher<const std::string&> m2 = WhenBase64Unescaped(EndsWith("!"));
+  EXPECT_FALSE(m2.Matches("invalid base64"));
+  EXPECT_FALSE(m2.Matches("aGVsbG8gd29ybGQ="));  // hello world
+  EXPECT_TRUE(m2.Matches("aGVsbG8gd29ybGQh"));   // hello world!
+
+#if GTEST_INTERNAL_HAS_STRING_VIEW
+  const Matcher<const internal::StringView&> m3 =
+      WhenBase64Unescaped(EndsWith("!"));
+  EXPECT_FALSE(m3.Matches("invalid base64"));
+  EXPECT_FALSE(m3.Matches("aGVsbG8gd29ybGQ="));  // hello world
+  EXPECT_TRUE(m3.Matches("aGVsbG8gd29ybGQh"));   // hello world!
+#endif  // GTEST_INTERNAL_HAS_STRING_VIEW
+}
+
+TEST(WhenBase64UnescapedTest, CanDescribeSelf) {
+  const Matcher<const char*> m = WhenBase64Unescaped(EndsWith("!"));
+  EXPECT_EQ("matches after Base64Unescape ends with \"!\"", Describe(m));
+}
+
 // Tests MatchesRegex().
 
 TEST(MatchesRegexTest, MatchesStringMatchingGivenRegex) {
diff --git a/googletest/scripts/README.md b/googletest/scripts/README.md
deleted file mode 100644
index fa359fe..0000000
--- a/googletest/scripts/README.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# Please Note:
-
-Files in this directory are no longer supported by the maintainers. They
-represent mosty historical artifacts and supported by the community only. There
-is no guarantee whatsoever that these scripts still work.
diff --git a/googletest/scripts/common.py b/googletest/scripts/common.py
deleted file mode 100644
index 3c0347a..0000000
--- a/googletest/scripts/common.py
+++ /dev/null
@@ -1,83 +0,0 @@
-# Copyright 2013 Google Inc. All Rights Reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-"""Shared utilities for writing scripts for Google Test/Mock."""
-
-__author__ = 'wan@google.com (Zhanyong Wan)'
-
-
-import os
-import re
-
-
-# Matches the line from 'svn info .' output that describes what SVN
-# path the current local directory corresponds to.  For example, in
-# a googletest SVN workspace's trunk/test directory, the output will be:
-#
-# URL: https://googletest.googlecode.com/svn/trunk/test
-_SVN_INFO_URL_RE = re.compile(r'^URL: https://(\w+)\.googlecode\.com/svn(.*)')
-
-
-def GetCommandOutput(command):
-  """Runs the shell command and returns its stdout as a list of lines."""
-
-  f = os.popen(command, 'r')
-  lines = [line.strip() for line in f.readlines()]
-  f.close()
-  return lines
-
-
-def GetSvnInfo():
-  """Returns the project name and the current SVN workspace's root path."""
-
-  for line in GetCommandOutput('svn info .'):
-    m = _SVN_INFO_URL_RE.match(line)
-    if m:
-      project = m.group(1)  # googletest or googlemock
-      rel_path = m.group(2)
-      root = os.path.realpath(rel_path.count('/') * '../')
-      return project, root
-
-  return None, None
-
-
-def GetSvnTrunk():
-  """Returns the current SVN workspace's trunk root path."""
-
-  _, root = GetSvnInfo()
-  return root + '/trunk' if root else None
-
-
-def IsInGTestSvn():
-  project, _ = GetSvnInfo()
-  return project == 'googletest'
-
-
-def IsInGMockSvn():
-  project, _ = GetSvnInfo()
-  return project == 'googlemock'
diff --git a/googletest/scripts/fuse_gtest_files.py b/googletest/scripts/fuse_gtest_files.py
deleted file mode 100755
index d0dd464..0000000
--- a/googletest/scripts/fuse_gtest_files.py
+++ /dev/null
@@ -1,253 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2009, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-"""fuse_gtest_files.py v0.2.0
-Fuses Google Test source code into a .h file and a .cc file.
-
-SYNOPSIS
-       fuse_gtest_files.py [GTEST_ROOT_DIR] OUTPUT_DIR
-
-       Scans GTEST_ROOT_DIR for Google Test source code, and generates
-       two files: OUTPUT_DIR/gtest/gtest.h and OUTPUT_DIR/gtest/gtest-all.cc.
-       Then you can build your tests by adding OUTPUT_DIR to the include
-       search path and linking with OUTPUT_DIR/gtest/gtest-all.cc.  These
-       two files contain everything you need to use Google Test.  Hence
-       you can "install" Google Test by copying them to wherever you want.
-
-       GTEST_ROOT_DIR can be omitted and defaults to the parent
-       directory of the directory holding this script.
-
-EXAMPLES
-       ./fuse_gtest_files.py fused_gtest
-       ./fuse_gtest_files.py path/to/unpacked/gtest fused_gtest
-
-This tool is experimental.  In particular, it assumes that there is no
-conditional inclusion of Google Test headers.  Please report any
-problems to googletestframework@googlegroups.com.  You can read
-https://github.com/google/googletest/blob/master/googletest/docs/advanced.md for
-more information.
-"""
-
-__author__ = 'wan@google.com (Zhanyong Wan)'
-
-import os
-import re
-try:
-  from sets import Set as set  # For Python 2.3 compatibility
-except ImportError:
-  pass
-import sys
-
-# We assume that this file is in the scripts/ directory in the Google
-# Test root directory.
-DEFAULT_GTEST_ROOT_DIR = os.path.join(os.path.dirname(__file__), '..')
-
-# Regex for matching '#include "gtest/..."'.
-INCLUDE_GTEST_FILE_REGEX = re.compile(r'^\s*#\s*include\s*"(gtest/.+)"')
-
-# Regex for matching '#include "src/..."'.
-INCLUDE_SRC_FILE_REGEX = re.compile(r'^\s*#\s*include\s*"(src/.+)"')
-
-# Where to find the source seed files.
-GTEST_H_SEED = 'include/gtest/gtest.h'
-GTEST_SPI_H_SEED = 'include/gtest/gtest-spi.h'
-GTEST_ALL_CC_SEED = 'src/gtest-all.cc'
-
-# Where to put the generated files.
-GTEST_H_OUTPUT = 'gtest/gtest.h'
-GTEST_ALL_CC_OUTPUT = 'gtest/gtest-all.cc'
-
-
-def VerifyFileExists(directory, relative_path):
-  """Verifies that the given file exists; aborts on failure.
-
-  relative_path is the file path relative to the given directory.
-  """
-
-  if not os.path.isfile(os.path.join(directory, relative_path)):
-    print('ERROR: Cannot find %s in directory %s.' % (relative_path,
-                                                      directory))
-    print('Please either specify a valid project root directory '
-          'or omit it on the command line.')
-    sys.exit(1)
-
-
-def ValidateGTestRootDir(gtest_root):
-  """Makes sure gtest_root points to a valid gtest root directory.
-
-  The function aborts the program on failure.
-  """
-
-  VerifyFileExists(gtest_root, GTEST_H_SEED)
-  VerifyFileExists(gtest_root, GTEST_ALL_CC_SEED)
-
-
-def VerifyOutputFile(output_dir, relative_path):
-  """Verifies that the given output file path is valid.
-
-  relative_path is relative to the output_dir directory.
-  """
-
-  # Makes sure the output file either doesn't exist or can be overwritten.
-  output_file = os.path.join(output_dir, relative_path)
-  if os.path.exists(output_file):
-    # TODO(wan@google.com): The following user-interaction doesn't
-    # work with automated processes.  We should provide a way for the
-    # Makefile to force overwriting the files.
-    print('%s already exists in directory %s - overwrite it? (y/N) ' %
-          (relative_path, output_dir))
-    answer = sys.stdin.readline().strip()
-    if answer not in ['y', 'Y']:
-      print('ABORTED.')
-      sys.exit(1)
-
-  # Makes sure the directory holding the output file exists; creates
-  # it and all its ancestors if necessary.
-  parent_directory = os.path.dirname(output_file)
-  if not os.path.isdir(parent_directory):
-    os.makedirs(parent_directory)
-
-
-def ValidateOutputDir(output_dir):
-  """Makes sure output_dir points to a valid output directory.
-
-  The function aborts the program on failure.
-  """
-
-  VerifyOutputFile(output_dir, GTEST_H_OUTPUT)
-  VerifyOutputFile(output_dir, GTEST_ALL_CC_OUTPUT)
-
-
-def FuseGTestH(gtest_root, output_dir):
-  """Scans folder gtest_root to generate gtest/gtest.h in output_dir."""
-
-  output_file = open(os.path.join(output_dir, GTEST_H_OUTPUT), 'w')
-  processed_files = set()  # Holds all gtest headers we've processed.
-
-  def ProcessFile(gtest_header_path):
-    """Processes the given gtest header file."""
-
-    # We don't process the same header twice.
-    if gtest_header_path in processed_files:
-      return
-
-    processed_files.add(gtest_header_path)
-
-    # Reads each line in the given gtest header.
-    for line in open(os.path.join(gtest_root, gtest_header_path), 'r'):
-      m = INCLUDE_GTEST_FILE_REGEX.match(line)
-      if m:
-        # It's '#include "gtest/..."' - let's process it recursively.
-        ProcessFile('include/' + m.group(1))
-      else:
-        # Otherwise we copy the line unchanged to the output file.
-        output_file.write(line)
-
-  ProcessFile(GTEST_H_SEED)
-  output_file.close()
-
-
-def FuseGTestAllCcToFile(gtest_root, output_file):
-  """Scans folder gtest_root to generate gtest/gtest-all.cc in output_file."""
-
-  processed_files = set()
-
-  def ProcessFile(gtest_source_file):
-    """Processes the given gtest source file."""
-
-    # We don't process the same #included file twice.
-    if gtest_source_file in processed_files:
-      return
-
-    processed_files.add(gtest_source_file)
-
-    # Reads each line in the given gtest source file.
-    for line in open(os.path.join(gtest_root, gtest_source_file), 'r'):
-      m = INCLUDE_GTEST_FILE_REGEX.match(line)
-      if m:
-        if 'include/' + m.group(1) == GTEST_SPI_H_SEED:
-          # It's '#include "gtest/gtest-spi.h"'.  This file is not
-          # #included by "gtest/gtest.h", so we need to process it.
-          ProcessFile(GTEST_SPI_H_SEED)
-        else:
-          # It's '#include "gtest/foo.h"' where foo is not gtest-spi.
-          # We treat it as '#include "gtest/gtest.h"', as all other
-          # gtest headers are being fused into gtest.h and cannot be
-          # #included directly.
-
-          # There is no need to #include "gtest/gtest.h" more than once.
-          if not GTEST_H_SEED in processed_files:
-            processed_files.add(GTEST_H_SEED)
-            output_file.write('#include "%s"\n' % (GTEST_H_OUTPUT,))
-      else:
-        m = INCLUDE_SRC_FILE_REGEX.match(line)
-        if m:
-          # It's '#include "src/foo"' - let's process it recursively.
-          ProcessFile(m.group(1))
-        else:
-          output_file.write(line)
-
-  ProcessFile(GTEST_ALL_CC_SEED)
-
-
-def FuseGTestAllCc(gtest_root, output_dir):
-  """Scans folder gtest_root to generate gtest/gtest-all.cc in output_dir."""
-
-  output_file = open(os.path.join(output_dir, GTEST_ALL_CC_OUTPUT), 'w')
-  FuseGTestAllCcToFile(gtest_root, output_file)
-  output_file.close()
-
-
-def FuseGTest(gtest_root, output_dir):
-  """Fuses gtest.h and gtest-all.cc."""
-
-  ValidateGTestRootDir(gtest_root)
-  ValidateOutputDir(output_dir)
-
-  FuseGTestH(gtest_root, output_dir)
-  FuseGTestAllCc(gtest_root, output_dir)
-
-
-def main():
-  argc = len(sys.argv)
-  if argc == 2:
-    # fuse_gtest_files.py OUTPUT_DIR
-    FuseGTest(DEFAULT_GTEST_ROOT_DIR, sys.argv[1])
-  elif argc == 3:
-    # fuse_gtest_files.py GTEST_ROOT_DIR OUTPUT_DIR
-    FuseGTest(sys.argv[1], sys.argv[2])
-  else:
-    print(__doc__)
-    sys.exit(1)
-
-
-if __name__ == '__main__':
-  main()
diff --git a/googletest/scripts/gen_gtest_pred_impl.py b/googletest/scripts/gen_gtest_pred_impl.py
deleted file mode 100755
index 5490471..0000000
--- a/googletest/scripts/gen_gtest_pred_impl.py
+++ /dev/null
@@ -1,730 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2006, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-"""gen_gtest_pred_impl.py v0.1
-
-Generates the implementation of Google Test predicate assertions and
-accompanying tests.
-
-Usage:
-
-  gen_gtest_pred_impl.py MAX_ARITY
-
-where MAX_ARITY is a positive integer.
-
-The command generates the implementation of up-to MAX_ARITY-ary
-predicate assertions, and writes it to file gtest_pred_impl.h in the
-directory where the script is.  It also generates the accompanying
-unit test in file gtest_pred_impl_unittest.cc.
-"""
-
-__author__ = 'wan@google.com (Zhanyong Wan)'
-
-import os
-import sys
-import time
-
-# Where this script is.
-SCRIPT_DIR = os.path.dirname(sys.argv[0])
-
-# Where to store the generated header.
-HEADER = os.path.join(SCRIPT_DIR, '../include/gtest/gtest_pred_impl.h')
-
-# Where to store the generated unit test.
-UNIT_TEST = os.path.join(SCRIPT_DIR, '../test/gtest_pred_impl_unittest.cc')
-
-
-def HeaderPreamble(n):
-  """Returns the preamble for the header file.
-
-  Args:
-    n:  the maximum arity of the predicate macros to be generated.
-  """
-
-  # A map that defines the values used in the preamble template.
-  DEFS = {
-    'today' : time.strftime('%m/%d/%Y'),
-    'year' : time.strftime('%Y'),
-    'command' : '%s %s' % (os.path.basename(sys.argv[0]), n),
-    'n' : n
-    }
-
-  return ((
-      """// Copyright 2006, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// This file is AUTOMATICALLY GENERATED on %(today)s by command
-// '%(command)s'.  DO NOT EDIT BY HAND!
-//
-// Implements a family of generic predicate assertion macros.""" +
-      """#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
-#define GOOGLETEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
-
-#include "gtest/gtest.h"
-
-namespace testing {
-
-// This header implements a family of generic predicate assertion
-// macros:
-//
-//   ASSERT_PRED_FORMAT1(pred_format, v1)
-//   ASSERT_PRED_FORMAT2(pred_format, v1, v2)
-//   ...
-//
-// where pred_format is a function or functor that takes n (in the
-// case of ASSERT_PRED_FORMATn) values and their source expression
-// text, and returns a testing::AssertionResult.  See the definition
-// of ASSERT_EQ in gtest.h for an example.
-//
-// If you don't care about formatting, you can use the more
-// restrictive version:
-//
-//   ASSERT_PRED1(pred, v1)
-//   ASSERT_PRED2(pred, v1, v2)
-//   ...
-//
-// where pred is an n-ary function or functor that returns bool,
-// and the values v1, v2, ..., must support the << operator for
-// streaming to std::ostream.
-//
-// We also define the EXPECT_* variations.
-//
-// For now we only support predicates whose arity is at most %(n)s.
-// Please email googletestframework@googlegroups.com if you need
-// support for higher arities.
-
-// GTEST_ASSERT_ is the basic statement to which all of the assertions
-// in this file reduce.  Don't use this in your code.
-
-#define GTEST_ASSERT_(expression, on_failure) \\
-  GTEST_AMBIGUOUS_ELSE_BLOCKER_ \\
-  if (const ::testing::AssertionResult gtest_ar = (expression)) \\
-    ; \\
-  else \\
-    on_failure(gtest_ar.failure_message())
-""") % DEFS)
-
-
-def Arity(n):
-  """Returns the English name of the given arity."""
-
-  if n < 0:
-    return None
-  elif n <= 3:
-    return ['nullary', 'unary', 'binary', 'ternary'][n]
-  else:
-    return '%s-ary' % n
-
-
-def Title(word):
-  """Returns the given word in title case.  The difference between
-  this and string's title() method is that Title('4-ary') is '4-ary'
-  while '4-ary'.title() is '4-Ary'."""
-
-  return word[0].upper() + word[1:]
-
-
-def OneTo(n):
-  """Returns the list [1, 2, 3, ..., n]."""
-
-  return range(1, n + 1)
-
-
-def Iter(n, format, sep=''):
-  """Given a positive integer n, a format string that contains 0 or
-  more '%s' format specs, and optionally a separator string, returns
-  the join of n strings, each formatted with the format string on an
-  iterator ranged from 1 to n.
-
-  Example:
-
-  Iter(3, 'v%s', sep=', ') returns 'v1, v2, v3'.
-  """
-
-  # How many '%s' specs are in format?
-  spec_count = len(format.split('%s')) - 1
-  return sep.join([format % (spec_count * (i,)) for i in OneTo(n)])
-
-
-def ImplementationForArity(n):
-  """Returns the implementation of n-ary predicate assertions."""
-
-  # A map the defines the values used in the implementation template.
-  DEFS = {
-    'n' : str(n),
-    'vs' : Iter(n, 'v%s', sep=', '),
-    'vts' : Iter(n, '#v%s', sep=', '),
-    'arity' : Arity(n),
-    'Arity' : Title(Arity(n))
-    }
-
-  impl = """
-
-// Helper function for implementing {EXPECT|ASSERT}_PRED%(n)s.  Don't use
-// this in your code.
-template <typename Pred""" % DEFS
-
-  impl += Iter(n, """,
-          typename T%s""")
-
-  impl += """>
-AssertionResult AssertPred%(n)sHelper(const char* pred_text""" % DEFS
-
-  impl += Iter(n, """,
-                                  const char* e%s""")
-
-  impl += """,
-                                  Pred pred"""
-
-  impl += Iter(n, """,
-                                  const T%s& v%s""")
-
-  impl += """) {
-  if (pred(%(vs)s)) return AssertionSuccess();
-
-""" % DEFS
-
-  impl += '  return AssertionFailure() << pred_text << "("'
-
-  impl += Iter(n, """
-                            << e%s""", sep=' << ", "')
-
-  impl += ' << ") evaluates to false, where"'
-
-  impl += Iter(
-      n, """
-      << "\\n" << e%s << " evaluates to " << ::testing::PrintToString(v%s)"""
-  )
-
-  impl += """;
-}
-
-// Internal macro for implementing {EXPECT|ASSERT}_PRED_FORMAT%(n)s.
-// Don't use this in your code.
-#define GTEST_PRED_FORMAT%(n)s_(pred_format, %(vs)s, on_failure)\\
-  GTEST_ASSERT_(pred_format(%(vts)s, %(vs)s), \\
-                on_failure)
-
-// Internal macro for implementing {EXPECT|ASSERT}_PRED%(n)s.  Don't use
-// this in your code.
-#define GTEST_PRED%(n)s_(pred, %(vs)s, on_failure)\\
-  GTEST_ASSERT_(::testing::AssertPred%(n)sHelper(#pred""" % DEFS
-
-  impl += Iter(n, """, \\
-                                             #v%s""")
-
-  impl += """, \\
-                                             pred"""
-
-  impl += Iter(n, """, \\
-                                             v%s""")
-
-  impl += """), on_failure)
-
-// %(Arity)s predicate assertion macros.
-#define EXPECT_PRED_FORMAT%(n)s(pred_format, %(vs)s) \\
-  GTEST_PRED_FORMAT%(n)s_(pred_format, %(vs)s, GTEST_NONFATAL_FAILURE_)
-#define EXPECT_PRED%(n)s(pred, %(vs)s) \\
-  GTEST_PRED%(n)s_(pred, %(vs)s, GTEST_NONFATAL_FAILURE_)
-#define ASSERT_PRED_FORMAT%(n)s(pred_format, %(vs)s) \\
-  GTEST_PRED_FORMAT%(n)s_(pred_format, %(vs)s, GTEST_FATAL_FAILURE_)
-#define ASSERT_PRED%(n)s(pred, %(vs)s) \\
-  GTEST_PRED%(n)s_(pred, %(vs)s, GTEST_FATAL_FAILURE_)
-
-""" % DEFS
-
-  return impl
-
-
-def HeaderPostamble():
-  """Returns the postamble for the header file."""
-
-  return """
-
-}  // namespace testing
-
-#endif  // GOOGLETEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
-"""
-
-
-def GenerateFile(path, content):
-  """Given a file path and a content string
-     overwrites it with the given content.
-  """
-  print 'Updating file %s . . .' % path
-  f = file(path, 'w+')
-  print >>f, content,
-  f.close()
-
-  print 'File %s has been updated.' % path
-
-
-def GenerateHeader(n):
-  """Given the maximum arity n, updates the header file that implements
-  the predicate assertions.
-  """
-  GenerateFile(HEADER,
-               HeaderPreamble(n)
-               + ''.join([ImplementationForArity(i) for i in OneTo(n)])
-               + HeaderPostamble())
-
-
-def UnitTestPreamble():
-  """Returns the preamble for the unit test file."""
-
-  # A map that defines the values used in the preamble template.
-  DEFS = {
-    'today' : time.strftime('%m/%d/%Y'),
-    'year' : time.strftime('%Y'),
-    'command' : '%s %s' % (os.path.basename(sys.argv[0]), sys.argv[1]),
-    }
-
-  return (
-  """// Copyright 2006, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// This file is AUTOMATICALLY GENERATED on %(today)s by command
-// '%(command)s'.  DO NOT EDIT BY HAND!
-
-// Regression test for gtest_pred_impl.h
-//
-// This file is generated by a script and quite long.  If you intend to
-// learn how Google Test works by reading its unit tests, read
-// gtest_unittest.cc instead.
-//
-// This is intended as a regression test for the Google Test predicate
-// assertions.  We compile it as part of the gtest_unittest target
-// only to keep the implementation tidy and compact, as it is quite
-// involved to set up the stage for testing Google Test using Google
-// Test itself.
-//
-// Currently, gtest_unittest takes ~11 seconds to run in the testing
-// daemon.  In the future, if it grows too large and needs much more
-// time to finish, we should consider separating this file into a
-// stand-alone regression test.
-
-#include <iostream>
-
-#include "gtest/gtest.h"
-#include "gtest/gtest-spi.h"
-
-// A user-defined data type.
-struct Bool {
-  explicit Bool(int val) : value(val != 0) {}
-
-  bool operator>(int n) const { return value > Bool(n).value; }
-
-  Bool operator+(const Bool& rhs) const { return Bool(value + rhs.value); }
-
-  bool operator==(const Bool& rhs) const { return value == rhs.value; }
-
-  bool value;
-};
-
-// Enables Bool to be used in assertions.
-std::ostream& operator<<(std::ostream& os, const Bool& x) {
-  return os << (x.value ? "true" : "false");
-}
-
-""" % DEFS)
-
-
-def TestsForArity(n):
-  """Returns the tests for n-ary predicate assertions."""
-
-  # A map that defines the values used in the template for the tests.
-  DEFS = {
-    'n' : n,
-    'es' : Iter(n, 'e%s', sep=', '),
-    'vs' : Iter(n, 'v%s', sep=', '),
-    'vts' : Iter(n, '#v%s', sep=', '),
-    'tvs' : Iter(n, 'T%s v%s', sep=', '),
-    'int_vs' : Iter(n, 'int v%s', sep=', '),
-    'Bool_vs' : Iter(n, 'Bool v%s', sep=', '),
-    'types' : Iter(n, 'typename T%s', sep=', '),
-    'v_sum' : Iter(n, 'v%s', sep=' + '),
-    'arity' : Arity(n),
-    'Arity' : Title(Arity(n)),
-    }
-
-  tests = (
-  """// Sample functions/functors for testing %(arity)s predicate assertions.
-
-// A %(arity)s predicate function.
-template <%(types)s>
-bool PredFunction%(n)s(%(tvs)s) {
-  return %(v_sum)s > 0;
-}
-
-// The following two functions are needed because a compiler doesn't have
-// a context yet to know which template function must be instantiated.
-bool PredFunction%(n)sInt(%(int_vs)s) {
-  return %(v_sum)s > 0;
-}
-bool PredFunction%(n)sBool(%(Bool_vs)s) {
-  return %(v_sum)s > 0;
-}
-""" % DEFS)
-
-  tests += """
-// A %(arity)s predicate functor.
-struct PredFunctor%(n)s {
-  template <%(types)s>
-  bool operator()(""" % DEFS
-
-  tests += Iter(n, 'const T%s& v%s', sep=""",
-                  """)
-
-  tests += """) {
-    return %(v_sum)s > 0;
-  }
-};
-""" % DEFS
-
-  tests += """
-// A %(arity)s predicate-formatter function.
-template <%(types)s>
-testing::AssertionResult PredFormatFunction%(n)s(""" % DEFS
-
-  tests += Iter(n, 'const char* e%s', sep=""",
-                                             """)
-
-  tests += Iter(n, """,
-                                             const T%s& v%s""")
-
-  tests += """) {
-  if (PredFunction%(n)s(%(vs)s))
-    return testing::AssertionSuccess();
-
-  return testing::AssertionFailure()
-      << """ % DEFS
-
-  tests += Iter(n, 'e%s', sep=' << " + " << ')
-
-  tests += """
-      << " is expected to be positive, but evaluates to "
-      << %(v_sum)s << ".";
-}
-""" % DEFS
-
-  tests += """
-// A %(arity)s predicate-formatter functor.
-struct PredFormatFunctor%(n)s {
-  template <%(types)s>
-  testing::AssertionResult operator()(""" % DEFS
-
-  tests += Iter(n, 'const char* e%s', sep=""",
-                                      """)
-
-  tests += Iter(n, """,
-                                      const T%s& v%s""")
-
-  tests += """) const {
-    return PredFormatFunction%(n)s(%(es)s, %(vs)s);
-  }
-};
-""" % DEFS
-
-  tests += """
-// Tests for {EXPECT|ASSERT}_PRED_FORMAT%(n)s.
-
-class Predicate%(n)sTest : public testing::Test {
- protected:
-  void SetUp() override {
-    expected_to_finish_ = true;
-    finished_ = false;""" % DEFS
-
-  tests += """
-    """ + Iter(n, 'n%s_ = ') + """0;
-  }
-"""
-
-  tests += """
-  void TearDown() override {
-    // Verifies that each of the predicate's arguments was evaluated
-    // exactly once."""
-
-  tests += ''.join(["""
-    EXPECT_EQ(1, n%s_) <<
-        "The predicate assertion didn't evaluate argument %s "
-        "exactly once.";""" % (i, i + 1) for i in OneTo(n)])
-
-  tests += """
-
-    // Verifies that the control flow in the test function is expected.
-    if (expected_to_finish_ && !finished_) {
-      FAIL() << "The predicate assertion unexpactedly aborted the test.";
-    } else if (!expected_to_finish_ && finished_) {
-      FAIL() << "The failed predicate assertion didn't abort the test "
-                "as expected.";
-    }
-  }
-
-  // true if and only if the test function is expected to run to finish.
-  static bool expected_to_finish_;
-
-  // true if and only if the test function did run to finish.
-  static bool finished_;
-""" % DEFS
-
-  tests += Iter(n, """
-  static int n%s_;""")
-
-  tests += """
-};
-
-bool Predicate%(n)sTest::expected_to_finish_;
-bool Predicate%(n)sTest::finished_;
-""" % DEFS
-
-  tests += Iter(n, """int Predicate%%(n)sTest::n%s_;
-""") % DEFS
-
-  tests += """
-typedef Predicate%(n)sTest EXPECT_PRED_FORMAT%(n)sTest;
-typedef Predicate%(n)sTest ASSERT_PRED_FORMAT%(n)sTest;
-typedef Predicate%(n)sTest EXPECT_PRED%(n)sTest;
-typedef Predicate%(n)sTest ASSERT_PRED%(n)sTest;
-""" % DEFS
-
-  def GenTest(use_format, use_assert, expect_failure,
-              use_functor, use_user_type):
-    """Returns the test for a predicate assertion macro.
-
-    Args:
-      use_format:     true if and only if the assertion is a *_PRED_FORMAT*.
-      use_assert:     true if and only if the assertion is a ASSERT_*.
-      expect_failure: true if and only if the assertion is expected to fail.
-      use_functor:    true if and only if the first argument of the assertion is
-                      a functor (as opposed to a function)
-      use_user_type:  true if and only if the predicate functor/function takes
-                      argument(s) of a user-defined type.
-
-    Example:
-
-      GenTest(1, 0, 0, 1, 0) returns a test that tests the behavior
-      of a successful EXPECT_PRED_FORMATn() that takes a functor
-      whose arguments have built-in types."""
-
-    if use_assert:
-      assrt = 'ASSERT'  # 'assert' is reserved, so we cannot use
-      # that identifier here.
-    else:
-      assrt = 'EXPECT'
-
-    assertion = assrt + '_PRED'
-
-    if use_format:
-      pred_format = 'PredFormat'
-      assertion += '_FORMAT'
-    else:
-      pred_format = 'Pred'
-
-    assertion += '%(n)s' % DEFS
-
-    if use_functor:
-      pred_format_type = 'functor'
-      pred_format += 'Functor%(n)s()'
-    else:
-      pred_format_type = 'function'
-      pred_format += 'Function%(n)s'
-      if not use_format:
-        if use_user_type:
-          pred_format += 'Bool'
-        else:
-          pred_format += 'Int'
-
-    test_name = pred_format_type.title()
-
-    if use_user_type:
-      arg_type = 'user-defined type (Bool)'
-      test_name += 'OnUserType'
-      if expect_failure:
-        arg = 'Bool(n%s_++)'
-      else:
-        arg = 'Bool(++n%s_)'
-    else:
-      arg_type = 'built-in type (int)'
-      test_name += 'OnBuiltInType'
-      if expect_failure:
-        arg = 'n%s_++'
-      else:
-        arg = '++n%s_'
-
-    if expect_failure:
-      successful_or_failed = 'failed'
-      expected_or_not = 'expected.'
-      test_name +=  'Failure'
-    else:
-      successful_or_failed = 'successful'
-      expected_or_not = 'UNEXPECTED!'
-      test_name +=  'Success'
-
-    # A map that defines the values used in the test template.
-    defs = DEFS.copy()
-    defs.update({
-      'assert' : assrt,
-      'assertion' : assertion,
-      'test_name' : test_name,
-      'pf_type' : pred_format_type,
-      'pf' : pred_format,
-      'arg_type' : arg_type,
-      'arg' : arg,
-      'successful' : successful_or_failed,
-      'expected' : expected_or_not,
-      })
-
-    test = """
-// Tests a %(successful)s %(assertion)s where the
-// predicate-formatter is a %(pf_type)s on a %(arg_type)s.
-TEST_F(%(assertion)sTest, %(test_name)s) {""" % defs
-
-    indent = (len(assertion) + 3)*' '
-    extra_indent = ''
-
-    if expect_failure:
-      extra_indent = '  '
-      if use_assert:
-        test += """
-  expected_to_finish_ = false;
-  EXPECT_FATAL_FAILURE({  // NOLINT"""
-      else:
-        test += """
-  EXPECT_NONFATAL_FAILURE({  // NOLINT"""
-
-    test += '\n' + extra_indent + """  %(assertion)s(%(pf)s""" % defs
-
-    test = test % defs
-    test += Iter(n, ',\n' + indent + extra_indent + '%(arg)s' % defs)
-    test += ');\n' + extra_indent + '  finished_ = true;\n'
-
-    if expect_failure:
-      test += '  }, "");\n'
-
-    test += '}\n'
-    return test
-
-  # Generates tests for all 2**6 = 64 combinations.
-  tests += ''.join([GenTest(use_format, use_assert, expect_failure,
-                            use_functor, use_user_type)
-                    for use_format in [0, 1]
-                    for use_assert in [0, 1]
-                    for expect_failure in [0, 1]
-                    for use_functor in [0, 1]
-                    for use_user_type in [0, 1]
-                    ])
-
-  return tests
-
-
-def UnitTestPostamble():
-  """Returns the postamble for the tests."""
-
-  return ''
-
-
-def GenerateUnitTest(n):
-  """Returns the tests for up-to n-ary predicate assertions."""
-
-  GenerateFile(UNIT_TEST,
-               UnitTestPreamble()
-               + ''.join([TestsForArity(i) for i in OneTo(n)])
-               + UnitTestPostamble())
-
-
-def _Main():
-  """The entry point of the script.  Generates the header file and its
-  unit test."""
-
-  if len(sys.argv) != 2:
-    print __doc__
-    print 'Author: ' + __author__
-    sys.exit(1)
-
-  n = int(sys.argv[1])
-  GenerateHeader(n)
-  GenerateUnitTest(n)
-
-
-if __name__ == '__main__':
-  _Main()
diff --git a/googletest/scripts/gtest-config.in b/googletest/scripts/gtest-config.in
deleted file mode 100755
index 780f843..0000000
--- a/googletest/scripts/gtest-config.in
+++ /dev/null
@@ -1,274 +0,0 @@
-#!/bin/sh
-
-# These variables are automatically filled in by the configure script.
-name="@PACKAGE_TARNAME@"
-version="@PACKAGE_VERSION@"
-
-show_usage()
-{
-  echo "Usage: gtest-config [OPTIONS...]"
-}
-
-show_help()
-{
-  show_usage
-  cat <<\EOF
-
-The `gtest-config' script provides access to the necessary compile and linking
-flags to connect with Google C++ Testing Framework, both in a build prior to
-installation, and on the system proper after installation. The installation
-overrides may be issued in combination with any other queries, but will only
-affect installation queries if called on a built but not installed gtest. The
-installation queries may not be issued with any other types of queries, and
-only one installation query may be made at a time. The version queries and
-compiler flag queries may be combined as desired but not mixed. Different
-version queries are always combined with logical "and" semantics, and only the
-last of any particular query is used while all previous ones ignored. All
-versions must be specified as a sequence of numbers separated by periods.
-Compiler flag queries output the union of the sets of flags when combined.
-
- Examples:
-  gtest-config --min-version=1.0 || echo "Insufficient Google Test version."
-
-  g++ $(gtest-config --cppflags --cxxflags) -o foo.o -c foo.cpp
-  g++ $(gtest-config --ldflags --libs) -o foo foo.o
-
-  # When using a built but not installed Google Test:
-  g++ $(../../my_gtest_build/scripts/gtest-config ...) ...
-
-  # When using an installed Google Test, but with installation overrides:
-  export GTEST_PREFIX="/opt"
-  g++ $(gtest-config --libdir="/opt/lib64" ...) ...
-
- Help:
-  --usage                    brief usage information
-  --help                     display this help message
-
- Installation Overrides:
-  --prefix=<dir>             overrides the installation prefix
-  --exec-prefix=<dir>        overrides the executable installation prefix
-  --libdir=<dir>             overrides the library installation prefix
-  --includedir=<dir>         overrides the header file installation prefix
-
- Installation Queries:
-  --prefix                   installation prefix
-  --exec-prefix              executable installation prefix
-  --libdir                   library installation directory
-  --includedir               header file installation directory
-  --version                  the version of the Google Test installation
-
- Version Queries:
-  --min-version=VERSION      return 0 if the version is at least VERSION
-  --exact-version=VERSION    return 0 if the version is exactly VERSION
-  --max-version=VERSION      return 0 if the version is at most VERSION
-
- Compilation Flag Queries:
-  --cppflags                 compile flags specific to the C-like preprocessors
-  --cxxflags                 compile flags appropriate for C++ programs
-  --ldflags                  linker flags
-  --libs                     libraries for linking
-
-EOF
-}
-
-# This function bounds our version with a min and a max. It uses some clever
-# POSIX-compliant variable expansion to portably do all the work in the shell
-# and avoid any dependency on a particular "sed" or "awk" implementation.
-# Notable is that it will only ever compare the first 3 components of versions.
-# Further components will be cleanly stripped off. All versions must be
-# unadorned, so "v1.0" will *not* work. The minimum version must be in $1, and
-# the max in $2. TODO(chandlerc@google.com): If this ever breaks, we should
-# investigate expanding this via autom4te from AS_VERSION_COMPARE rather than
-# continuing to maintain our own shell version.
-check_versions()
-{
-  major_version=${version%%.*}
-  minor_version="0"
-  point_version="0"
-  if test "${version#*.}" != "${version}"; then
-    minor_version=${version#*.}
-    minor_version=${minor_version%%.*}
-  fi
-  if test "${version#*.*.}" != "${version}"; then
-    point_version=${version#*.*.}
-    point_version=${point_version%%.*}
-  fi
-
-  min_version="$1"
-  min_major_version=${min_version%%.*}
-  min_minor_version="0"
-  min_point_version="0"
-  if test "${min_version#*.}" != "${min_version}"; then
-    min_minor_version=${min_version#*.}
-    min_minor_version=${min_minor_version%%.*}
-  fi
-  if test "${min_version#*.*.}" != "${min_version}"; then
-    min_point_version=${min_version#*.*.}
-    min_point_version=${min_point_version%%.*}
-  fi
-
-  max_version="$2"
-  max_major_version=${max_version%%.*}
-  max_minor_version="0"
-  max_point_version="0"
-  if test "${max_version#*.}" != "${max_version}"; then
-    max_minor_version=${max_version#*.}
-    max_minor_version=${max_minor_version%%.*}
-  fi
-  if test "${max_version#*.*.}" != "${max_version}"; then
-    max_point_version=${max_version#*.*.}
-    max_point_version=${max_point_version%%.*}
-  fi
-
-  test $(($major_version)) -lt $(($min_major_version)) && exit 1
-  if test $(($major_version)) -eq $(($min_major_version)); then
-    test $(($minor_version)) -lt $(($min_minor_version)) && exit 1
-    if test $(($minor_version)) -eq $(($min_minor_version)); then
-      test $(($point_version)) -lt $(($min_point_version)) && exit 1
-    fi
-  fi
-
-  test $(($major_version)) -gt $(($max_major_version)) && exit 1
-  if test $(($major_version)) -eq $(($max_major_version)); then
-    test $(($minor_version)) -gt $(($max_minor_version)) && exit 1
-    if test $(($minor_version)) -eq $(($max_minor_version)); then
-      test $(($point_version)) -gt $(($max_point_version)) && exit 1
-    fi
-  fi
-
-  exit 0
-}
-
-# Show the usage line when no arguments are specified.
-if test $# -eq 0; then
-  show_usage
-  exit 1
-fi
-
-while test $# -gt 0; do
-  case $1 in
-    --usage)          show_usage;         exit 0;;
-    --help)           show_help;          exit 0;;
-
-    # Installation overrides
-    --prefix=*)       GTEST_PREFIX=${1#--prefix=};;
-    --exec-prefix=*)  GTEST_EXEC_PREFIX=${1#--exec-prefix=};;
-    --libdir=*)       GTEST_LIBDIR=${1#--libdir=};;
-    --includedir=*)   GTEST_INCLUDEDIR=${1#--includedir=};;
-
-    # Installation queries
-    --prefix|--exec-prefix|--libdir|--includedir|--version)
-      if test -n "${do_query}"; then
-        show_usage
-        exit 1
-      fi
-      do_query=${1#--}
-      ;;
-
-    # Version checking
-    --min-version=*)
-      do_check_versions=yes
-      min_version=${1#--min-version=}
-      ;;
-    --max-version=*)
-      do_check_versions=yes
-      max_version=${1#--max-version=}
-      ;;
-    --exact-version=*)
-      do_check_versions=yes
-      exact_version=${1#--exact-version=}
-      ;;
-
-    # Compiler flag output
-    --cppflags)       echo_cppflags=yes;;
-    --cxxflags)       echo_cxxflags=yes;;
-    --ldflags)        echo_ldflags=yes;;
-    --libs)           echo_libs=yes;;
-
-    # Everything else is an error
-    *)                show_usage;         exit 1;;
-  esac
-  shift
-done
-
-# These have defaults filled in by the configure script but can also be
-# overridden by environment variables or command line parameters.
-prefix="${GTEST_PREFIX:-@prefix@}"
-exec_prefix="${GTEST_EXEC_PREFIX:-@exec_prefix@}"
-libdir="${GTEST_LIBDIR:-@libdir@}"
-includedir="${GTEST_INCLUDEDIR:-@includedir@}"
-
-# We try and detect if our binary is not located at its installed location. If
-# it's not, we provide variables pointing to the source and build tree rather
-# than to the install tree. This allows building against a just-built gtest
-# rather than an installed gtest.
-bindir="@bindir@"
-this_relative_bindir=`dirname $0`
-this_bindir=`cd ${this_relative_bindir}; pwd -P`
-if test "${this_bindir}" = "${this_bindir%${bindir}}"; then
-  # The path to the script doesn't end in the bindir sequence from Autoconf,
-  # assume that we are in a build tree.
-  build_dir=`dirname ${this_bindir}`
-  src_dir=`cd ${this_bindir}; cd @top_srcdir@; pwd -P`
-
-  # TODO(chandlerc@google.com): This is a dangerous dependency on libtool, we
-  # should work to remove it, and/or remove libtool altogether, replacing it
-  # with direct references to the library and a link path.
-  gtest_libs="${build_dir}/lib/libgtest.la @PTHREAD_CFLAGS@ @PTHREAD_LIBS@"
-  gtest_ldflags=""
-
-  # We provide hooks to include from either the source or build dir, where the
-  # build dir is always preferred. This will potentially allow us to write
-  # build rules for generated headers and have them automatically be preferred
-  # over provided versions.
-  gtest_cppflags="-I${build_dir}/include -I${src_dir}/include"
-  gtest_cxxflags="@PTHREAD_CFLAGS@"
-else
-  # We're using an installed gtest, although it may be staged under some
-  # prefix. Assume (as our own libraries do) that we can resolve the prefix,
-  # and are present in the dynamic link paths.
-  gtest_ldflags="-L${libdir}"
-  gtest_libs="-l${name} @PTHREAD_CFLAGS@ @PTHREAD_LIBS@"
-  gtest_cppflags="-I${includedir}"
-  gtest_cxxflags="@PTHREAD_CFLAGS@"
-fi
-
-# Do an installation query if requested.
-if test -n "$do_query"; then
-  case $do_query in
-    prefix)           echo $prefix;       exit 0;;
-    exec-prefix)      echo $exec_prefix;  exit 0;;
-    libdir)           echo $libdir;       exit 0;;
-    includedir)       echo $includedir;   exit 0;;
-    version)          echo $version;      exit 0;;
-    *)                show_usage;         exit 1;;
-  esac
-fi
-
-# Do a version check if requested.
-if test "$do_check_versions" = "yes"; then
-  # Make sure we didn't receive a bad combination of parameters.
-  test "$echo_cppflags" = "yes" && show_usage && exit 1
-  test "$echo_cxxflags" = "yes" && show_usage && exit 1
-  test "$echo_ldflags" = "yes"  && show_usage && exit 1
-  test "$echo_libs" = "yes"     && show_usage && exit 1
-
-  if test "$exact_version" != ""; then
-    check_versions $exact_version $exact_version
-    # unreachable
-  else
-    check_versions ${min_version:-0.0.0} ${max_version:-9999.9999.9999}
-    # unreachable
-  fi
-fi
-
-# Do the output in the correct order so that these can be used in-line of
-# a compiler invocation.
-output=""
-test "$echo_cppflags" = "yes" && output="$output $gtest_cppflags"
-test "$echo_cxxflags" = "yes" && output="$output $gtest_cxxflags"
-test "$echo_ldflags" = "yes"  && output="$output $gtest_ldflags"
-test "$echo_libs" = "yes"     && output="$output $gtest_libs"
-echo $output
-
-exit 0
diff --git a/googletest/scripts/release_docs.py b/googletest/scripts/release_docs.py
deleted file mode 100755
index 8d24f28..0000000
--- a/googletest/scripts/release_docs.py
+++ /dev/null
@@ -1,158 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2013 Google Inc. All Rights Reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-"""Script for branching Google Test/Mock wiki pages for a new version.
-
-SYNOPSIS
-       release_docs.py NEW_RELEASE_VERSION
-
-       Google Test and Google Mock's external user documentation is in
-       interlinked wiki files.  When we release a new version of
-       Google Test or Google Mock, we need to branch the wiki files
-       such that users of a specific version of Google Test/Mock can
-       look up documentation relevant for that version.  This script
-       automates that process by:
-
-         - branching the current wiki pages (which document the
-           behavior of the SVN trunk head) to pages for the specified
-           version (e.g. branching FAQ.wiki to V2_6_FAQ.wiki when
-           NEW_RELEASE_VERSION is 2.6);
-         - updating the links in the branched files to point to the branched
-           version (e.g. a link in V2_6_FAQ.wiki that pointed to
-           Primer.wiki#Anchor will now point to V2_6_Primer.wiki#Anchor).
-
-       NOTE: NEW_RELEASE_VERSION must be a NEW version number for
-       which the wiki pages don't yet exist; otherwise you'll get SVN
-       errors like "svn: Path 'V1_7_PumpManual.wiki' is not a
-       directory" when running the script.
-
-EXAMPLE
-       $ cd PATH/TO/GTEST_SVN_WORKSPACE/trunk
-       $ scripts/release_docs.py 2.6  # create wiki pages for v2.6
-       $ svn status                   # verify the file list
-       $ svn diff                     # verify the file contents
-       $ svn commit -m "release wiki pages for v2.6"
-"""
-
-__author__ = 'wan@google.com (Zhanyong Wan)'
-
-import os
-import re
-import sys
-
-import common
-
-
-# Wiki pages that shouldn't be branched for every gtest/gmock release.
-GTEST_UNVERSIONED_WIKIS = ['DevGuide.wiki']
-GMOCK_UNVERSIONED_WIKIS = [
-    'DesignDoc.wiki',
-    'DevGuide.wiki',
-    'KnownIssues.wiki'
-    ]
-
-
-def DropWikiSuffix(wiki_filename):
-  """Removes the .wiki suffix (if any) from the given filename."""
-
-  return (wiki_filename[:-len('.wiki')] if wiki_filename.endswith('.wiki')
-          else wiki_filename)
-
-
-class WikiBrancher(object):
-  """Branches ..."""
-
-  def __init__(self, dot_version):
-    self.project, svn_root_path = common.GetSvnInfo()
-    if self.project not in ('googletest', 'googlemock'):
-      sys.exit('This script must be run in a gtest or gmock SVN workspace.')
-    self.wiki_dir = svn_root_path + '/wiki'
-    # Turn '2.6' to 'V2_6_'.
-    self.version_prefix = 'V' + dot_version.replace('.', '_') + '_'
-    self.files_to_branch = self.GetFilesToBranch()
-    page_names = [DropWikiSuffix(f) for f in self.files_to_branch]
-    # A link to Foo.wiki is in one of the following forms:
-    #   [Foo words]
-    #   [Foo#Anchor words]
-    #   [http://code.google.com/.../wiki/Foo words]
-    #   [http://code.google.com/.../wiki/Foo#Anchor words]
-    # We want to replace 'Foo' with 'V2_6_Foo' in the above cases.
-    self.search_for_re = re.compile(
-        # This regex matches either
-        #   [Foo
-        # or
-        #   /wiki/Foo
-        # followed by a space or a #, where Foo is the name of an
-        # unversioned wiki page.
-        r'(\[|/wiki/)(%s)([ #])' % '|'.join(page_names))
-    self.replace_with = r'\1%s\2\3' % (self.version_prefix,)
-
-  def GetFilesToBranch(self):
-    """Returns a list of .wiki file names that need to be branched."""
-
-    unversioned_wikis = (GTEST_UNVERSIONED_WIKIS if self.project == 'googletest'
-                         else GMOCK_UNVERSIONED_WIKIS)
-    return [f for f in os.listdir(self.wiki_dir)
-            if (f.endswith('.wiki') and
-                not re.match(r'^V\d', f) and  # Excluded versioned .wiki files.
-                f not in unversioned_wikis)]
-
-  def BranchFiles(self):
-    """Branches the .wiki files needed to be branched."""
-
-    print 'Branching %d .wiki files:' % (len(self.files_to_branch),)
-    os.chdir(self.wiki_dir)
-    for f in self.files_to_branch:
-      command = 'svn cp %s %s%s' % (f, self.version_prefix, f)
-      print command
-      os.system(command)
-
-  def UpdateLinksInBranchedFiles(self):
-
-    for f in self.files_to_branch:
-      source_file = os.path.join(self.wiki_dir, f)
-      versioned_file = os.path.join(self.wiki_dir, self.version_prefix + f)
-      print 'Updating links in %s.' % (versioned_file,)
-      text = file(source_file, 'r').read()
-      new_text = self.search_for_re.sub(self.replace_with, text)
-      file(versioned_file, 'w').write(new_text)
-
-
-def main():
-  if len(sys.argv) != 2:
-    sys.exit(__doc__)
-
-  brancher = WikiBrancher(sys.argv[1])
-  brancher.BranchFiles()
-  brancher.UpdateLinksInBranchedFiles()
-
-
-if __name__ == '__main__':
-  main()
diff --git a/googletest/scripts/run_with_path.py b/googletest/scripts/run_with_path.py
deleted file mode 100755
index d46ab4d..0000000
--- a/googletest/scripts/run_with_path.py
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2010 Google Inc. All Rights Reserved.
-
-"""Runs program specified in the command line with the substituted PATH.
-
-   This script is needed for to support building under Pulse which is unable
-   to override the existing PATH variable.
-"""
-
-import os
-import subprocess
-import sys
-
-SUBST_PATH_ENV_VAR_NAME = "SUBST_PATH"
-
-def main():
-  if SUBST_PATH_ENV_VAR_NAME in os.environ:
-    os.environ["PATH"] = os.environ[SUBST_PATH_ENV_VAR_NAME]
-
-  exit_code = subprocess.Popen(sys.argv[1:]).wait()
-
-  # exit_code is negative (-signal) if the process has been terminated by
-  # a signal. Returning negative exit code is not portable and so we return
-  # 100 instead.
-  if exit_code < 0:
-    exit_code = 100
-
-  sys.exit(exit_code)
-
-if __name__ == "__main__":
-  main()
diff --git a/googletest/scripts/test/Makefile b/googletest/scripts/test/Makefile
deleted file mode 100644
index cdff584..0000000
--- a/googletest/scripts/test/Makefile
+++ /dev/null
@@ -1,59 +0,0 @@
-# A Makefile for fusing Google Test and building a sample test against it.
-#
-# SYNOPSIS:
-#
-#   make [all]  - makes everything.
-#   make TARGET - makes the given target.
-#   make check  - makes everything and runs the built sample test.
-#   make clean  - removes all files generated by make.
-
-# Points to the root of fused Google Test, relative to where this file is.
-FUSED_GTEST_DIR = output
-
-# Paths to the fused gtest files.
-FUSED_GTEST_H = $(FUSED_GTEST_DIR)/gtest/gtest.h
-FUSED_GTEST_ALL_CC = $(FUSED_GTEST_DIR)/gtest/gtest-all.cc
-
-# Where to find the sample test.
-SAMPLE_DIR = ../../samples
-
-# Where to find gtest_main.cc.
-GTEST_MAIN_CC = ../../src/gtest_main.cc
-
-# Flags passed to the preprocessor.
-# We have no idea here whether pthreads is available in the system, so
-# disable its use.
-CPPFLAGS += -I$(FUSED_GTEST_DIR) -DGTEST_HAS_PTHREAD=0
-
-# Flags passed to the C++ compiler.
-CXXFLAGS += -g
-
-all : sample1_unittest
-
-check : all
-	./sample1_unittest
-
-clean :
-	rm -rf $(FUSED_GTEST_DIR) sample1_unittest *.o
-
-$(FUSED_GTEST_H) :
-	../fuse_gtest_files.py $(FUSED_GTEST_DIR)
-
-$(FUSED_GTEST_ALL_CC) :
-	../fuse_gtest_files.py $(FUSED_GTEST_DIR)
-
-gtest-all.o : $(FUSED_GTEST_H) $(FUSED_GTEST_ALL_CC)
-	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $(FUSED_GTEST_DIR)/gtest/gtest-all.cc
-
-gtest_main.o : $(FUSED_GTEST_H) $(GTEST_MAIN_CC)
-	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $(GTEST_MAIN_CC)
-
-sample1.o : $(SAMPLE_DIR)/sample1.cc $(SAMPLE_DIR)/sample1.h
-	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $(SAMPLE_DIR)/sample1.cc
-
-sample1_unittest.o : $(SAMPLE_DIR)/sample1_unittest.cc \
-                     $(SAMPLE_DIR)/sample1.h $(FUSED_GTEST_H)
-	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $(SAMPLE_DIR)/sample1_unittest.cc
-
-sample1_unittest : sample1.o sample1_unittest.o gtest-all.o gtest_main.o
-	$(CXX) $(CPPFLAGS) $(CXXFLAGS) $^ -o $@
diff --git a/googletest/scripts/upload.py b/googletest/scripts/upload.py
deleted file mode 100755
index eba5711..0000000
--- a/googletest/scripts/upload.py
+++ /dev/null
@@ -1,1402 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2007, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-"""Tool for uploading diffs from a version control system to the codereview app.
-
-Usage summary: upload.py [options] [-- diff_options]
-
-Diff options are passed to the diff command of the underlying system.
-
-Supported version control systems:
-  Git
-  Mercurial
-  Subversion
-
-It is important for Git/Mercurial users to specify a tree/node/branch to diff
-against by using the '--rev' option.
-"""
-# This code is derived from appcfg.py in the App Engine SDK (open source),
-# and from ASPN recipe #146306.
-
-import cookielib
-import getpass
-import logging
-import md5
-import mimetypes
-import optparse
-import os
-import re
-import socket
-import subprocess
-import sys
-import urllib
-import urllib2
-import urlparse
-
-try:
-  import readline
-except ImportError:
-  pass
-
-# The logging verbosity:
-#  0: Errors only.
-#  1: Status messages.
-#  2: Info logs.
-#  3: Debug logs.
-verbosity = 1
-
-# Max size of patch or base file.
-MAX_UPLOAD_SIZE = 900 * 1024
-
-
-def GetEmail(prompt):
-  """Prompts the user for their email address and returns it.
-
-  The last used email address is saved to a file and offered up as a suggestion
-  to the user. If the user presses enter without typing in anything the last
-  used email address is used. If the user enters a new address, it is saved
-  for next time we prompt.
-
-  """
-  last_email_file_name = os.path.expanduser("~/.last_codereview_email_address")
-  last_email = ""
-  if os.path.exists(last_email_file_name):
-    try:
-      last_email_file = open(last_email_file_name, "r")
-      last_email = last_email_file.readline().strip("\n")
-      last_email_file.close()
-      prompt += " [%s]" % last_email
-    except IOError, e:
-      pass
-  email = raw_input(prompt + ": ").strip()
-  if email:
-    try:
-      last_email_file = open(last_email_file_name, "w")
-      last_email_file.write(email)
-      last_email_file.close()
-    except IOError, e:
-      pass
-  else:
-    email = last_email
-  return email
-
-
-def StatusUpdate(msg):
-  """Print a status message to stdout.
-
-  If 'verbosity' is greater than 0, print the message.
-
-  Args:
-    msg: The string to print.
-  """
-  if verbosity > 0:
-    print msg
-
-
-def ErrorExit(msg):
-  """Print an error message to stderr and exit."""
-  print >>sys.stderr, msg
-  sys.exit(1)
-
-
-class ClientLoginError(urllib2.HTTPError):
-  """Raised to indicate there was an error authenticating with ClientLogin."""
-
-  def __init__(self, url, code, msg, headers, args):
-    urllib2.HTTPError.__init__(self, url, code, msg, headers, None)
-    self.args = args
-    self.reason = args["Error"]
-
-
-class AbstractRpcServer(object):
-  """Provides a common interface for a simple RPC server."""
-
-  def __init__(self, host, auth_function, host_override=None, extra_headers={},
-               save_cookies=False):
-    """Creates a new HttpRpcServer.
-
-    Args:
-      host: The host to send requests to.
-      auth_function: A function that takes no arguments and returns an
-        (email, password) tuple when called. Will be called if authentication
-        is required.
-      host_override: The host header to send to the server (defaults to host).
-      extra_headers: A dict of extra headers to append to every request.
-      save_cookies: If True, save the authentication cookies to local disk.
-        If False, use an in-memory cookiejar instead.  Subclasses must
-        implement this functionality.  Defaults to False.
-    """
-    self.host = host
-    self.host_override = host_override
-    self.auth_function = auth_function
-    self.authenticated = False
-    self.extra_headers = extra_headers
-    self.save_cookies = save_cookies
-    self.opener = self._GetOpener()
-    if self.host_override:
-      logging.info("Server: %s; Host: %s", self.host, self.host_override)
-    else:
-      logging.info("Server: %s", self.host)
-
-  def _GetOpener(self):
-    """Returns an OpenerDirector for making HTTP requests.
-
-    Returns:
-      A urllib2.OpenerDirector object.
-    """
-    raise NotImplementedError()
-
-  def _CreateRequest(self, url, data=None):
-    """Creates a new urllib request."""
-    logging.debug("Creating request for: '%s' with payload:\n%s", url, data)
-    req = urllib2.Request(url, data=data)
-    if self.host_override:
-      req.add_header("Host", self.host_override)
-    for key, value in self.extra_headers.iteritems():
-      req.add_header(key, value)
-    return req
-
-  def _GetAuthToken(self, email, password):
-    """Uses ClientLogin to authenticate the user, returning an auth token.
-
-    Args:
-      email:    The user's email address
-      password: The user's password
-
-    Raises:
-      ClientLoginError: If there was an error authenticating with ClientLogin.
-      HTTPError: If there was some other form of HTTP error.
-
-    Returns:
-      The authentication token returned by ClientLogin.
-    """
-    account_type = "GOOGLE"
-    if self.host.endswith(".google.com"):
-      # Needed for use inside Google.
-      account_type = "HOSTED"
-    req = self._CreateRequest(
-        url="https://www.google.com/accounts/ClientLogin",
-        data=urllib.urlencode({
-            "Email": email,
-            "Passwd": password,
-            "service": "ah",
-            "source": "rietveld-codereview-upload",
-            "accountType": account_type,
-        }),
-    )
-    try:
-      response = self.opener.open(req)
-      response_body = response.read()
-      response_dict = dict(x.split("=")
-                           for x in response_body.split("\n") if x)
-      return response_dict["Auth"]
-    except urllib2.HTTPError, e:
-      if e.code == 403:
-        body = e.read()
-        response_dict = dict(x.split("=", 1) for x in body.split("\n") if x)
-        raise ClientLoginError(req.get_full_url(), e.code, e.msg,
-                               e.headers, response_dict)
-      else:
-        raise
-
-  def _GetAuthCookie(self, auth_token):
-    """Fetches authentication cookies for an authentication token.
-
-    Args:
-      auth_token: The authentication token returned by ClientLogin.
-
-    Raises:
-      HTTPError: If there was an error fetching the authentication cookies.
-    """
-    # This is a dummy value to allow us to identify when we're successful.
-    continue_location = "http://localhost/"
-    args = {"continue": continue_location, "auth": auth_token}
-    req = self._CreateRequest("http://%s/_ah/login?%s" %
-                              (self.host, urllib.urlencode(args)))
-    try:
-      response = self.opener.open(req)
-    except urllib2.HTTPError, e:
-      response = e
-    if (response.code != 302 or
-        response.info()["location"] != continue_location):
-      raise urllib2.HTTPError(req.get_full_url(), response.code, response.msg,
-                              response.headers, response.fp)
-    self.authenticated = True
-
-  def _Authenticate(self):
-    """Authenticates the user.
-
-    The authentication process works as follows:
-     1) We get a username and password from the user
-     2) We use ClientLogin to obtain an AUTH token for the user
-        (see https://developers.google.com/identity/protocols/AuthForInstalledApps).
-     3) We pass the auth token to /_ah/login on the server to obtain an
-        authentication cookie. If login was successful, it tries to redirect
-        us to the URL we provided.
-
-    If we attempt to access the upload API without first obtaining an
-    authentication cookie, it returns a 401 response and directs us to
-    authenticate ourselves with ClientLogin.
-    """
-    for i in range(3):
-      credentials = self.auth_function()
-      try:
-        auth_token = self._GetAuthToken(credentials[0], credentials[1])
-      except ClientLoginError, e:
-        if e.reason == "BadAuthentication":
-          print >>sys.stderr, "Invalid username or password."
-          continue
-        if e.reason == "CaptchaRequired":
-          print >>sys.stderr, (
-              "Please go to\n"
-              "https://www.google.com/accounts/DisplayUnlockCaptcha\n"
-              "and verify you are a human.  Then try again.")
-          break
-        if e.reason == "NotVerified":
-          print >>sys.stderr, "Account not verified."
-          break
-        if e.reason == "TermsNotAgreed":
-          print >>sys.stderr, "User has not agreed to TOS."
-          break
-        if e.reason == "AccountDeleted":
-          print >>sys.stderr, "The user account has been deleted."
-          break
-        if e.reason == "AccountDisabled":
-          print >>sys.stderr, "The user account has been disabled."
-          break
-        if e.reason == "ServiceDisabled":
-          print >>sys.stderr, ("The user's access to the service has been "
-                               "disabled.")
-          break
-        if e.reason == "ServiceUnavailable":
-          print >>sys.stderr, "The service is not available; try again later."
-          break
-        raise
-      self._GetAuthCookie(auth_token)
-      return
-
-  def Send(self, request_path, payload=None,
-           content_type="application/octet-stream",
-           timeout=None,
-           **kwargs):
-    """Sends an RPC and returns the response.
-
-    Args:
-      request_path: The path to send the request to, eg /api/appversion/create.
-      payload: The body of the request, or None to send an empty request.
-      content_type: The Content-Type header to use.
-      timeout: timeout in seconds; default None i.e. no timeout.
-        (Note: for large requests on OS X, the timeout doesn't work right.)
-      kwargs: Any keyword arguments are converted into query string parameters.
-
-    Returns:
-      The response body, as a string.
-    """
-    # TODO: Don't require authentication.  Let the server say
-    # whether it is necessary.
-    if not self.authenticated:
-      self._Authenticate()
-
-    old_timeout = socket.getdefaulttimeout()
-    socket.setdefaulttimeout(timeout)
-    try:
-      tries = 0
-      while True:
-        tries += 1
-        args = dict(kwargs)
-        url = "http://%s%s" % (self.host, request_path)
-        if args:
-          url += "?" + urllib.urlencode(args)
-        req = self._CreateRequest(url=url, data=payload)
-        req.add_header("Content-Type", content_type)
-        try:
-          f = self.opener.open(req)
-          response = f.read()
-          f.close()
-          return response
-        except urllib2.HTTPError, e:
-          if tries > 3:
-            raise
-          elif e.code == 401:
-            self._Authenticate()
-##           elif e.code >= 500 and e.code < 600:
-##             # Server Error - try again.
-##             continue
-          else:
-            raise
-    finally:
-      socket.setdefaulttimeout(old_timeout)
-
-
-class HttpRpcServer(AbstractRpcServer):
-  """Provides a simplified RPC-style interface for HTTP requests."""
-
-  def _Authenticate(self):
-    """Save the cookie jar after authentication."""
-    super(HttpRpcServer, self)._Authenticate()
-    if self.save_cookies:
-      StatusUpdate("Saving authentication cookies to %s" % self.cookie_file)
-      self.cookie_jar.save()
-
-  def _GetOpener(self):
-    """Returns an OpenerDirector that supports cookies and ignores redirects.
-
-    Returns:
-      A urllib2.OpenerDirector object.
-    """
-    opener = urllib2.OpenerDirector()
-    opener.add_handler(urllib2.ProxyHandler())
-    opener.add_handler(urllib2.UnknownHandler())
-    opener.add_handler(urllib2.HTTPHandler())
-    opener.add_handler(urllib2.HTTPDefaultErrorHandler())
-    opener.add_handler(urllib2.HTTPSHandler())
-    opener.add_handler(urllib2.HTTPErrorProcessor())
-    if self.save_cookies:
-      self.cookie_file = os.path.expanduser("~/.codereview_upload_cookies")
-      self.cookie_jar = cookielib.MozillaCookieJar(self.cookie_file)
-      if os.path.exists(self.cookie_file):
-        try:
-          self.cookie_jar.load()
-          self.authenticated = True
-          StatusUpdate("Loaded authentication cookies from %s" %
-                       self.cookie_file)
-        except (cookielib.LoadError, IOError):
-          # Failed to load cookies - just ignore them.
-          pass
-      else:
-        # Create an empty cookie file with mode 600
-        fd = os.open(self.cookie_file, os.O_CREAT, 0600)
-        os.close(fd)
-      # Always chmod the cookie file
-      os.chmod(self.cookie_file, 0600)
-    else:
-      # Don't save cookies across runs of update.py.
-      self.cookie_jar = cookielib.CookieJar()
-    opener.add_handler(urllib2.HTTPCookieProcessor(self.cookie_jar))
-    return opener
-
-
-parser = optparse.OptionParser(usage="%prog [options] [-- diff_options]")
-parser.add_option("-y", "--assume_yes", action="store_true",
-                  dest="assume_yes", default=False,
-                  help="Assume that the answer to yes/no questions is 'yes'.")
-# Logging
-group = parser.add_option_group("Logging options")
-group.add_option("-q", "--quiet", action="store_const", const=0,
-                 dest="verbose", help="Print errors only.")
-group.add_option("-v", "--verbose", action="store_const", const=2,
-                 dest="verbose", default=1,
-                 help="Print info level logs (default).")
-group.add_option("--noisy", action="store_const", const=3,
-                 dest="verbose", help="Print all logs.")
-# Review server
-group = parser.add_option_group("Review server options")
-group.add_option("-s", "--server", action="store", dest="server",
-                 default="codereview.appspot.com",
-                 metavar="SERVER",
-                 help=("The server to upload to. The format is host[:port]. "
-                       "Defaults to 'codereview.appspot.com'."))
-group.add_option("-e", "--email", action="store", dest="email",
-                 metavar="EMAIL", default=None,
-                 help="The username to use. Will prompt if omitted.")
-group.add_option("-H", "--host", action="store", dest="host",
-                 metavar="HOST", default=None,
-                 help="Overrides the Host header sent with all RPCs.")
-group.add_option("--no_cookies", action="store_false",
-                 dest="save_cookies", default=True,
-                 help="Do not save authentication cookies to local disk.")
-# Issue
-group = parser.add_option_group("Issue options")
-group.add_option("-d", "--description", action="store", dest="description",
-                 metavar="DESCRIPTION", default=None,
-                 help="Optional description when creating an issue.")
-group.add_option("-f", "--description_file", action="store",
-                 dest="description_file", metavar="DESCRIPTION_FILE",
-                 default=None,
-                 help="Optional path of a file that contains "
-                      "the description when creating an issue.")
-group.add_option("-r", "--reviewers", action="store", dest="reviewers",
-                 metavar="REVIEWERS", default=None,
-                 help="Add reviewers (comma separated email addresses).")
-group.add_option("--cc", action="store", dest="cc",
-                 metavar="CC", default=None,
-                 help="Add CC (comma separated email addresses).")
-# Upload options
-group = parser.add_option_group("Patch options")
-group.add_option("-m", "--message", action="store", dest="message",
-                 metavar="MESSAGE", default=None,
-                 help="A message to identify the patch. "
-                      "Will prompt if omitted.")
-group.add_option("-i", "--issue", type="int", action="store",
-                 metavar="ISSUE", default=None,
-                 help="Issue number to which to add. Defaults to new issue.")
-group.add_option("--download_base", action="store_true",
-                 dest="download_base", default=False,
-                 help="Base files will be downloaded by the server "
-                 "(side-by-side diffs may not work on files with CRs).")
-group.add_option("--rev", action="store", dest="revision",
-                 metavar="REV", default=None,
-                 help="Branch/tree/revision to diff against (used by DVCS).")
-group.add_option("--send_mail", action="store_true",
-                 dest="send_mail", default=False,
-                 help="Send notification email to reviewers.")
-
-
-def GetRpcServer(options):
-  """Returns an instance of an AbstractRpcServer.
-
-  Returns:
-    A new AbstractRpcServer, on which RPC calls can be made.
-  """
-
-  rpc_server_class = HttpRpcServer
-
-  def GetUserCredentials():
-    """Prompts the user for a username and password."""
-    email = options.email
-    if email is None:
-      email = GetEmail("Email (login for uploading to %s)" % options.server)
-    password = getpass.getpass("Password for %s: " % email)
-    return (email, password)
-
-  # If this is the dev_appserver, use fake authentication.
-  host = (options.host or options.server).lower()
-  if host == "localhost" or host.startswith("localhost:"):
-    email = options.email
-    if email is None:
-      email = "test@example.com"
-      logging.info("Using debug user %s.  Override with --email" % email)
-    server = rpc_server_class(
-        options.server,
-        lambda: (email, "password"),
-        host_override=options.host,
-        extra_headers={"Cookie":
-                       'dev_appserver_login="%s:False"' % email},
-        save_cookies=options.save_cookies)
-    # Don't try to talk to ClientLogin.
-    server.authenticated = True
-    return server
-
-  return rpc_server_class(options.server, GetUserCredentials,
-                          host_override=options.host,
-                          save_cookies=options.save_cookies)
-
-
-def EncodeMultipartFormData(fields, files):
-  """Encode form fields for multipart/form-data.
-
-  Args:
-    fields: A sequence of (name, value) elements for regular form fields.
-    files: A sequence of (name, filename, value) elements for data to be
-           uploaded as files.
-  Returns:
-    (content_type, body) ready for httplib.HTTP instance.
-
-  Source:
-    https://web.archive.org/web/20160116052001/code.activestate.com/recipes/146306
-  """
-  BOUNDARY = '-M-A-G-I-C---B-O-U-N-D-A-R-Y-'
-  CRLF = '\r\n'
-  lines = []
-  for (key, value) in fields:
-    lines.append('--' + BOUNDARY)
-    lines.append('Content-Disposition: form-data; name="%s"' % key)
-    lines.append('')
-    lines.append(value)
-  for (key, filename, value) in files:
-    lines.append('--' + BOUNDARY)
-    lines.append('Content-Disposition: form-data; name="%s"; filename="%s"' %
-             (key, filename))
-    lines.append('Content-Type: %s' % GetContentType(filename))
-    lines.append('')
-    lines.append(value)
-  lines.append('--' + BOUNDARY + '--')
-  lines.append('')
-  body = CRLF.join(lines)
-  content_type = 'multipart/form-data; boundary=%s' % BOUNDARY
-  return content_type, body
-
-
-def GetContentType(filename):
-  """Helper to guess the content-type from the filename."""
-  return mimetypes.guess_type(filename)[0] or 'application/octet-stream'
-
-
-# Use a shell for subcommands on Windows to get a PATH search.
-use_shell = sys.platform.startswith("win")
-
-def RunShellWithReturnCode(command, print_output=False,
-                           universal_newlines=True):
-  """Executes a command and returns the output from stdout and the return code.
-
-  Args:
-    command: Command to execute.
-    print_output: If True, the output is printed to stdout.
-                  If False, both stdout and stderr are ignored.
-    universal_newlines: Use universal_newlines flag (default: True).
-
-  Returns:
-    Tuple (output, return code)
-  """
-  logging.info("Running %s", command)
-  p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
-                       shell=use_shell, universal_newlines=universal_newlines)
-  if print_output:
-    output_array = []
-    while True:
-      line = p.stdout.readline()
-      if not line:
-        break
-      print line.strip("\n")
-      output_array.append(line)
-    output = "".join(output_array)
-  else:
-    output = p.stdout.read()
-  p.wait()
-  errout = p.stderr.read()
-  if print_output and errout:
-    print >>sys.stderr, errout
-  p.stdout.close()
-  p.stderr.close()
-  return output, p.returncode
-
-
-def RunShell(command, silent_ok=False, universal_newlines=True,
-             print_output=False):
-  data, retcode = RunShellWithReturnCode(command, print_output,
-                                         universal_newlines)
-  if retcode:
-    ErrorExit("Got error status from %s:\n%s" % (command, data))
-  if not silent_ok and not data:
-    ErrorExit("No output from %s" % command)
-  return data
-
-
-class VersionControlSystem(object):
-  """Abstract base class providing an interface to the VCS."""
-
-  def __init__(self, options):
-    """Constructor.
-
-    Args:
-      options: Command line options.
-    """
-    self.options = options
-
-  def GenerateDiff(self, args):
-    """Return the current diff as a string.
-
-    Args:
-      args: Extra arguments to pass to the diff command.
-    """
-    raise NotImplementedError(
-        "abstract method -- subclass %s must override" % self.__class__)
-
-  def GetUnknownFiles(self):
-    """Return a list of files unknown to the VCS."""
-    raise NotImplementedError(
-        "abstract method -- subclass %s must override" % self.__class__)
-
-  def CheckForUnknownFiles(self):
-    """Show an "are you sure?" prompt if there are unknown files."""
-    unknown_files = self.GetUnknownFiles()
-    if unknown_files:
-      print "The following files are not added to version control:"
-      for line in unknown_files:
-        print line
-      prompt = "Are you sure to continue?(y/N) "
-      answer = raw_input(prompt).strip()
-      if answer != "y":
-        ErrorExit("User aborted")
-
-  def GetBaseFile(self, filename):
-    """Get the content of the upstream version of a file.
-
-    Returns:
-      A tuple (base_content, new_content, is_binary, status)
-        base_content: The contents of the base file.
-        new_content: For text files, this is empty.  For binary files, this is
-          the contents of the new file, since the diff output won't contain
-          information to reconstruct the current file.
-        is_binary: True iff the file is binary.
-        status: The status of the file.
-    """
-
-    raise NotImplementedError(
-        "abstract method -- subclass %s must override" % self.__class__)
-
-
-  def GetBaseFiles(self, diff):
-    """Helper that calls GetBase file for each file in the patch.
-
-    Returns:
-      A dictionary that maps from filename to GetBaseFile's tuple.  Filenames
-      are retrieved based on lines that start with "Index:" or
-      "Property changes on:".
-    """
-    files = {}
-    for line in diff.splitlines(True):
-      if line.startswith('Index:') or line.startswith('Property changes on:'):
-        unused, filename = line.split(':', 1)
-        # On Windows if a file has property changes its filename uses '\'
-        # instead of '/'.
-        filename = filename.strip().replace('\\', '/')
-        files[filename] = self.GetBaseFile(filename)
-    return files
-
-
-  def UploadBaseFiles(self, issue, rpc_server, patch_list, patchset, options,
-                      files):
-    """Uploads the base files (and if necessary, the current ones as well)."""
-
-    def UploadFile(filename, file_id, content, is_binary, status, is_base):
-      """Uploads a file to the server."""
-      file_too_large = False
-      if is_base:
-        type = "base"
-      else:
-        type = "current"
-      if len(content) > MAX_UPLOAD_SIZE:
-        print ("Not uploading the %s file for %s because it's too large." %
-               (type, filename))
-        file_too_large = True
-        content = ""
-      checksum = md5.new(content).hexdigest()
-      if options.verbose > 0 and not file_too_large:
-        print "Uploading %s file for %s" % (type, filename)
-      url = "/%d/upload_content/%d/%d" % (int(issue), int(patchset), file_id)
-      form_fields = [("filename", filename),
-                     ("status", status),
-                     ("checksum", checksum),
-                     ("is_binary", str(is_binary)),
-                     ("is_current", str(not is_base)),
-                    ]
-      if file_too_large:
-        form_fields.append(("file_too_large", "1"))
-      if options.email:
-        form_fields.append(("user", options.email))
-      ctype, body = EncodeMultipartFormData(form_fields,
-                                            [("data", filename, content)])
-      response_body = rpc_server.Send(url, body,
-                                      content_type=ctype)
-      if not response_body.startswith("OK"):
-        StatusUpdate("  --> %s" % response_body)
-        sys.exit(1)
-
-    patches = dict()
-    [patches.setdefault(v, k) for k, v in patch_list]
-    for filename in patches.keys():
-      base_content, new_content, is_binary, status = files[filename]
-      file_id_str = patches.get(filename)
-      if file_id_str.find("nobase") != -1:
-        base_content = None
-        file_id_str = file_id_str[file_id_str.rfind("_") + 1:]
-      file_id = int(file_id_str)
-      if base_content != None:
-        UploadFile(filename, file_id, base_content, is_binary, status, True)
-      if new_content != None:
-        UploadFile(filename, file_id, new_content, is_binary, status, False)
-
-  def IsImage(self, filename):
-    """Returns true if the filename has an image extension."""
-    mimetype =  mimetypes.guess_type(filename)[0]
-    if not mimetype:
-      return False
-    return mimetype.startswith("image/")
-
-
-class SubversionVCS(VersionControlSystem):
-  """Implementation of the VersionControlSystem interface for Subversion."""
-
-  def __init__(self, options):
-    super(SubversionVCS, self).__init__(options)
-    if self.options.revision:
-      match = re.match(r"(\d+)(:(\d+))?", self.options.revision)
-      if not match:
-        ErrorExit("Invalid Subversion revision %s." % self.options.revision)
-      self.rev_start = match.group(1)
-      self.rev_end = match.group(3)
-    else:
-      self.rev_start = self.rev_end = None
-    # Cache output from "svn list -r REVNO dirname".
-    # Keys: dirname, Values: 2-tuple (output for start rev and end rev).
-    self.svnls_cache = {}
-    # SVN base URL is required to fetch files deleted in an older revision.
-    # Result is cached to not guess it over and over again in GetBaseFile().
-    required = self.options.download_base or self.options.revision is not None
-    self.svn_base = self._GuessBase(required)
-
-  def GuessBase(self, required):
-    """Wrapper for _GuessBase."""
-    return self.svn_base
-
-  def _GuessBase(self, required):
-    """Returns the SVN base URL.
-
-    Args:
-      required: If true, exits if the url can't be guessed, otherwise None is
-        returned.
-    """
-    info = RunShell(["svn", "info"])
-    for line in info.splitlines():
-      words = line.split()
-      if len(words) == 2 and words[0] == "URL:":
-        url = words[1]
-        scheme, netloc, path, params, query, fragment = urlparse.urlparse(url)
-        username, netloc = urllib.splituser(netloc)
-        if username:
-          logging.info("Removed username from base URL")
-        if netloc.endswith("svn.python.org"):
-          if netloc == "svn.python.org":
-            if path.startswith("/projects/"):
-              path = path[9:]
-          elif netloc != "pythondev@svn.python.org":
-            ErrorExit("Unrecognized Python URL: %s" % url)
-          base = "http://svn.python.org/view/*checkout*%s/" % path
-          logging.info("Guessed Python base = %s", base)
-        elif netloc.endswith("svn.collab.net"):
-          if path.startswith("/repos/"):
-            path = path[6:]
-          base = "http://svn.collab.net/viewvc/*checkout*%s/" % path
-          logging.info("Guessed CollabNet base = %s", base)
-        elif netloc.endswith(".googlecode.com"):
-          path = path + "/"
-          base = urlparse.urlunparse(("http", netloc, path, params,
-                                      query, fragment))
-          logging.info("Guessed Google Code base = %s", base)
-        else:
-          path = path + "/"
-          base = urlparse.urlunparse((scheme, netloc, path, params,
-                                      query, fragment))
-          logging.info("Guessed base = %s", base)
-        return base
-    if required:
-      ErrorExit("Can't find URL in output from svn info")
-    return None
-
-  def GenerateDiff(self, args):
-    cmd = ["svn", "diff"]
-    if self.options.revision:
-      cmd += ["-r", self.options.revision]
-    cmd.extend(args)
-    data = RunShell(cmd)
-    count = 0
-    for line in data.splitlines():
-      if line.startswith("Index:") or line.startswith("Property changes on:"):
-        count += 1
-        logging.info(line)
-    if not count:
-      ErrorExit("No valid patches found in output from svn diff")
-    return data
-
-  def _CollapseKeywords(self, content, keyword_str):
-    """Collapses SVN keywords."""
-    # svn cat translates keywords but svn diff doesn't. As a result of this
-    # behavior patching.PatchChunks() fails with a chunk mismatch error.
-    # This part was originally written by the Review Board development team
-    # who had the same problem (https://reviews.reviewboard.org/r/276/).
-    # Mapping of keywords to known aliases
-    svn_keywords = {
-      # Standard keywords
-      'Date':                ['Date', 'LastChangedDate'],
-      'Revision':            ['Revision', 'LastChangedRevision', 'Rev'],
-      'Author':              ['Author', 'LastChangedBy'],
-      'HeadURL':             ['HeadURL', 'URL'],
-      'Id':                  ['Id'],
-
-      # Aliases
-      'LastChangedDate':     ['LastChangedDate', 'Date'],
-      'LastChangedRevision': ['LastChangedRevision', 'Rev', 'Revision'],
-      'LastChangedBy':       ['LastChangedBy', 'Author'],
-      'URL':                 ['URL', 'HeadURL'],
-    }
-
-    def repl(m):
-       if m.group(2):
-         return "$%s::%s$" % (m.group(1), " " * len(m.group(3)))
-       return "$%s$" % m.group(1)
-    keywords = [keyword
-                for name in keyword_str.split(" ")
-                for keyword in svn_keywords.get(name, [])]
-    return re.sub(r"\$(%s):(:?)([^\$]+)\$" % '|'.join(keywords), repl, content)
-
-  def GetUnknownFiles(self):
-    status = RunShell(["svn", "status", "--ignore-externals"], silent_ok=True)
-    unknown_files = []
-    for line in status.split("\n"):
-      if line and line[0] == "?":
-        unknown_files.append(line)
-    return unknown_files
-
-  def ReadFile(self, filename):
-    """Returns the contents of a file."""
-    file = open(filename, 'rb')
-    result = ""
-    try:
-      result = file.read()
-    finally:
-      file.close()
-    return result
-
-  def GetStatus(self, filename):
-    """Returns the status of a file."""
-    if not self.options.revision:
-      status = RunShell(["svn", "status", "--ignore-externals", filename])
-      if not status:
-        ErrorExit("svn status returned no output for %s" % filename)
-      status_lines = status.splitlines()
-      # If file is in a cl, the output will begin with
-      # "\n--- Changelist 'cl_name':\n".  See
-      # https://web.archive.org/web/20090918234815/svn.collab.net/repos/svn/trunk/notes/changelist-design.txt
-      if (len(status_lines) == 3 and
-          not status_lines[0] and
-          status_lines[1].startswith("--- Changelist")):
-        status = status_lines[2]
-      else:
-        status = status_lines[0]
-    # If we have a revision to diff against we need to run "svn list"
-    # for the old and the new revision and compare the results to get
-    # the correct status for a file.
-    else:
-      dirname, relfilename = os.path.split(filename)
-      if dirname not in self.svnls_cache:
-        cmd = ["svn", "list", "-r", self.rev_start, dirname or "."]
-        out, returncode = RunShellWithReturnCode(cmd)
-        if returncode:
-          ErrorExit("Failed to get status for %s." % filename)
-        old_files = out.splitlines()
-        args = ["svn", "list"]
-        if self.rev_end:
-          args += ["-r", self.rev_end]
-        cmd = args + [dirname or "."]
-        out, returncode = RunShellWithReturnCode(cmd)
-        if returncode:
-          ErrorExit("Failed to run command %s" % cmd)
-        self.svnls_cache[dirname] = (old_files, out.splitlines())
-      old_files, new_files = self.svnls_cache[dirname]
-      if relfilename in old_files and relfilename not in new_files:
-        status = "D   "
-      elif relfilename in old_files and relfilename in new_files:
-        status = "M   "
-      else:
-        status = "A   "
-    return status
-
-  def GetBaseFile(self, filename):
-    status = self.GetStatus(filename)
-    base_content = None
-    new_content = None
-
-    # If a file is copied its status will be "A  +", which signifies
-    # "addition-with-history".  See "svn st" for more information.  We need to
-    # upload the original file or else diff parsing will fail if the file was
-    # edited.
-    if status[0] == "A" and status[3] != "+":
-      # We'll need to upload the new content if we're adding a binary file
-      # since diff's output won't contain it.
-      mimetype = RunShell(["svn", "propget", "svn:mime-type", filename],
-                          silent_ok=True)
-      base_content = ""
-      is_binary = mimetype and not mimetype.startswith("text/")
-      if is_binary and self.IsImage(filename):
-        new_content = self.ReadFile(filename)
-    elif (status[0] in ("M", "D", "R") or
-          (status[0] == "A" and status[3] == "+") or  # Copied file.
-          (status[0] == " " and status[1] == "M")):  # Property change.
-      args = []
-      if self.options.revision:
-        url = "%s/%s@%s" % (self.svn_base, filename, self.rev_start)
-      else:
-        # Don't change filename, it's needed later.
-        url = filename
-        args += ["-r", "BASE"]
-      cmd = ["svn"] + args + ["propget", "svn:mime-type", url]
-      mimetype, returncode = RunShellWithReturnCode(cmd)
-      if returncode:
-        # File does not exist in the requested revision.
-        # Reset mimetype, it contains an error message.
-        mimetype = ""
-      get_base = False
-      is_binary = mimetype and not mimetype.startswith("text/")
-      if status[0] == " ":
-        # Empty base content just to force an upload.
-        base_content = ""
-      elif is_binary:
-        if self.IsImage(filename):
-          get_base = True
-          if status[0] == "M":
-            if not self.rev_end:
-              new_content = self.ReadFile(filename)
-            else:
-              url = "%s/%s@%s" % (self.svn_base, filename, self.rev_end)
-              new_content = RunShell(["svn", "cat", url],
-                                     universal_newlines=True, silent_ok=True)
-        else:
-          base_content = ""
-      else:
-        get_base = True
-
-      if get_base:
-        if is_binary:
-          universal_newlines = False
-        else:
-          universal_newlines = True
-        if self.rev_start:
-          # "svn cat -r REV delete_file.txt" doesn't work. cat requires
-          # the full URL with "@REV" appended instead of using "-r" option.
-          url = "%s/%s@%s" % (self.svn_base, filename, self.rev_start)
-          base_content = RunShell(["svn", "cat", url],
-                                  universal_newlines=universal_newlines,
-                                  silent_ok=True)
-        else:
-          base_content = RunShell(["svn", "cat", filename],
-                                  universal_newlines=universal_newlines,
-                                  silent_ok=True)
-        if not is_binary:
-          args = []
-          if self.rev_start:
-            url = "%s/%s@%s" % (self.svn_base, filename, self.rev_start)
-          else:
-            url = filename
-            args += ["-r", "BASE"]
-          cmd = ["svn"] + args + ["propget", "svn:keywords", url]
-          keywords, returncode = RunShellWithReturnCode(cmd)
-          if keywords and not returncode:
-            base_content = self._CollapseKeywords(base_content, keywords)
-    else:
-      StatusUpdate("svn status returned unexpected output: %s" % status)
-      sys.exit(1)
-    return base_content, new_content, is_binary, status[0:5]
-
-
-class GitVCS(VersionControlSystem):
-  """Implementation of the VersionControlSystem interface for Git."""
-
-  def __init__(self, options):
-    super(GitVCS, self).__init__(options)
-    # Map of filename -> hash of base file.
-    self.base_hashes = {}
-
-  def GenerateDiff(self, extra_args):
-    # This is more complicated than svn's GenerateDiff because we must convert
-    # the diff output to include an svn-style "Index:" line as well as record
-    # the hashes of the base files, so we can upload them along with our diff.
-    if self.options.revision:
-      extra_args = [self.options.revision] + extra_args
-    gitdiff = RunShell(["git", "diff", "--full-index"] + extra_args)
-    svndiff = []
-    filecount = 0
-    filename = None
-    for line in gitdiff.splitlines():
-      match = re.match(r"diff --git a/(.*) b/.*$", line)
-      if match:
-        filecount += 1
-        filename = match.group(1)
-        svndiff.append("Index: %s\n" % filename)
-      else:
-        # The "index" line in a git diff looks like this (long hashes elided):
-        #   index 82c0d44..b2cee3f 100755
-        # We want to save the left hash, as that identifies the base file.
-        match = re.match(r"index (\w+)\.\.", line)
-        if match:
-          self.base_hashes[filename] = match.group(1)
-      svndiff.append(line + "\n")
-    if not filecount:
-      ErrorExit("No valid patches found in output from git diff")
-    return "".join(svndiff)
-
-  def GetUnknownFiles(self):
-    status = RunShell(["git", "ls-files", "--exclude-standard", "--others"],
-                      silent_ok=True)
-    return status.splitlines()
-
-  def GetBaseFile(self, filename):
-    hash = self.base_hashes[filename]
-    base_content = None
-    new_content = None
-    is_binary = False
-    if hash == "0" * 40:  # All-zero hash indicates no base file.
-      status = "A"
-      base_content = ""
-    else:
-      status = "M"
-      base_content, returncode = RunShellWithReturnCode(["git", "show", hash])
-      if returncode:
-        ErrorExit("Got error status from 'git show %s'" % hash)
-    return (base_content, new_content, is_binary, status)
-
-
-class MercurialVCS(VersionControlSystem):
-  """Implementation of the VersionControlSystem interface for Mercurial."""
-
-  def __init__(self, options, repo_dir):
-    super(MercurialVCS, self).__init__(options)
-    # Absolute path to repository (we can be in a subdir)
-    self.repo_dir = os.path.normpath(repo_dir)
-    # Compute the subdir
-    cwd = os.path.normpath(os.getcwd())
-    assert cwd.startswith(self.repo_dir)
-    self.subdir = cwd[len(self.repo_dir):].lstrip(r"\/")
-    if self.options.revision:
-      self.base_rev = self.options.revision
-    else:
-      self.base_rev = RunShell(["hg", "parent", "-q"]).split(':')[1].strip()
-
-  def _GetRelPath(self, filename):
-    """Get relative path of a file according to the current directory,
-    given its logical path in the repo."""
-    assert filename.startswith(self.subdir), filename
-    return filename[len(self.subdir):].lstrip(r"\/")
-
-  def GenerateDiff(self, extra_args):
-    # If no file specified, restrict to the current subdir
-    extra_args = extra_args or ["."]
-    cmd = ["hg", "diff", "--git", "-r", self.base_rev] + extra_args
-    data = RunShell(cmd, silent_ok=True)
-    svndiff = []
-    filecount = 0
-    for line in data.splitlines():
-      m = re.match("diff --git a/(\S+) b/(\S+)", line)
-      if m:
-        # Modify line to make it look like as it comes from svn diff.
-        # With this modification no changes on the server side are required
-        # to make upload.py work with Mercurial repos.
-        # NOTE: for proper handling of moved/copied files, we have to use
-        # the second filename.
-        filename = m.group(2)
-        svndiff.append("Index: %s" % filename)
-        svndiff.append("=" * 67)
-        filecount += 1
-        logging.info(line)
-      else:
-        svndiff.append(line)
-    if not filecount:
-      ErrorExit("No valid patches found in output from hg diff")
-    return "\n".join(svndiff) + "\n"
-
-  def GetUnknownFiles(self):
-    """Return a list of files unknown to the VCS."""
-    args = []
-    status = RunShell(["hg", "status", "--rev", self.base_rev, "-u", "."],
-        silent_ok=True)
-    unknown_files = []
-    for line in status.splitlines():
-      st, fn = line.split(" ", 1)
-      if st == "?":
-        unknown_files.append(fn)
-    return unknown_files
-
-  def GetBaseFile(self, filename):
-    # "hg status" and "hg cat" both take a path relative to the current subdir
-    # rather than to the repo root, but "hg diff" has given us the full path
-    # to the repo root.
-    base_content = ""
-    new_content = None
-    is_binary = False
-    oldrelpath = relpath = self._GetRelPath(filename)
-    # "hg status -C" returns two lines for moved/copied files, one otherwise
-    out = RunShell(["hg", "status", "-C", "--rev", self.base_rev, relpath])
-    out = out.splitlines()
-    # HACK: strip error message about missing file/directory if it isn't in
-    # the working copy
-    if out[0].startswith('%s: ' % relpath):
-      out = out[1:]
-    if len(out) > 1:
-      # Moved/copied => considered as modified, use old filename to
-      # retrieve base contents
-      oldrelpath = out[1].strip()
-      status = "M"
-    else:
-      status, _ = out[0].split(' ', 1)
-    if status != "A":
-      base_content = RunShell(["hg", "cat", "-r", self.base_rev, oldrelpath],
-        silent_ok=True)
-      is_binary = "\0" in base_content  # Mercurial's heuristic
-    if status != "R":
-      new_content = open(relpath, "rb").read()
-      is_binary = is_binary or "\0" in new_content
-    if is_binary and base_content:
-      # Fetch again without converting newlines
-      base_content = RunShell(["hg", "cat", "-r", self.base_rev, oldrelpath],
-        silent_ok=True, universal_newlines=False)
-    if not is_binary or not self.IsImage(relpath):
-      new_content = None
-    return base_content, new_content, is_binary, status
-
-
-# NOTE: The SplitPatch function is duplicated in engine.py, keep them in sync.
-def SplitPatch(data):
-  """Splits a patch into separate pieces for each file.
-
-  Args:
-    data: A string containing the output of svn diff.
-
-  Returns:
-    A list of 2-tuple (filename, text) where text is the svn diff output
-      pertaining to filename.
-  """
-  patches = []
-  filename = None
-  diff = []
-  for line in data.splitlines(True):
-    new_filename = None
-    if line.startswith('Index:'):
-      unused, new_filename = line.split(':', 1)
-      new_filename = new_filename.strip()
-    elif line.startswith('Property changes on:'):
-      unused, temp_filename = line.split(':', 1)
-      # When a file is modified, paths use '/' between directories, however
-      # when a property is modified '\' is used on Windows.  Make them the same
-      # otherwise the file shows up twice.
-      temp_filename = temp_filename.strip().replace('\\', '/')
-      if temp_filename != filename:
-        # File has property changes but no modifications, create a new diff.
-        new_filename = temp_filename
-    if new_filename:
-      if filename and diff:
-        patches.append((filename, ''.join(diff)))
-      filename = new_filename
-      diff = [line]
-      continue
-    if diff is not None:
-      diff.append(line)
-  if filename and diff:
-    patches.append((filename, ''.join(diff)))
-  return patches
-
-
-def UploadSeparatePatches(issue, rpc_server, patchset, data, options):
-  """Uploads a separate patch for each file in the diff output.
-
-  Returns a list of [patch_key, filename] for each file.
-  """
-  patches = SplitPatch(data)
-  rv = []
-  for patch in patches:
-    if len(patch[1]) > MAX_UPLOAD_SIZE:
-      print ("Not uploading the patch for " + patch[0] +
-             " because the file is too large.")
-      continue
-    form_fields = [("filename", patch[0])]
-    if not options.download_base:
-      form_fields.append(("content_upload", "1"))
-    files = [("data", "data.diff", patch[1])]
-    ctype, body = EncodeMultipartFormData(form_fields, files)
-    url = "/%d/upload_patch/%d" % (int(issue), int(patchset))
-    print "Uploading patch for " + patch[0]
-    response_body = rpc_server.Send(url, body, content_type=ctype)
-    lines = response_body.splitlines()
-    if not lines or lines[0] != "OK":
-      StatusUpdate("  --> %s" % response_body)
-      sys.exit(1)
-    rv.append([lines[1], patch[0]])
-  return rv
-
-
-def GuessVCS(options):
-  """Helper to guess the version control system.
-
-  This examines the current directory, guesses which VersionControlSystem
-  we're using, and returns an instance of the appropriate class.  Exit with an
-  error if we can't figure it out.
-
-  Returns:
-    A VersionControlSystem instance. Exits if the VCS can't be guessed.
-  """
-  # Mercurial has a command to get the base directory of a repository
-  # Try running it, but don't die if we don't have hg installed.
-  # NOTE: we try Mercurial first as it can sit on top of an SVN working copy.
-  try:
-    out, returncode = RunShellWithReturnCode(["hg", "root"])
-    if returncode == 0:
-      return MercurialVCS(options, out.strip())
-  except OSError, (errno, message):
-    if errno != 2:  # ENOENT -- they don't have hg installed.
-      raise
-
-  # Subversion has a .svn in all working directories.
-  if os.path.isdir('.svn'):
-    logging.info("Guessed VCS = Subversion")
-    return SubversionVCS(options)
-
-  # Git has a command to test if you're in a git tree.
-  # Try running it, but don't die if we don't have git installed.
-  try:
-    out, returncode = RunShellWithReturnCode(["git", "rev-parse",
-                                              "--is-inside-work-tree"])
-    if returncode == 0:
-      return GitVCS(options)
-  except OSError, (errno, message):
-    if errno != 2:  # ENOENT -- they don't have git installed.
-      raise
-
-  ErrorExit(("Could not guess version control system. "
-             "Are you in a working copy directory?"))
-
-
-def RealMain(argv, data=None):
-  """The real main function.
-
-  Args:
-    argv: Command line arguments.
-    data: Diff contents. If None (default) the diff is generated by
-      the VersionControlSystem implementation returned by GuessVCS().
-
-  Returns:
-    A 2-tuple (issue id, patchset id).
-    The patchset id is None if the base files are not uploaded by this
-    script (applies only to SVN checkouts).
-  """
-  logging.basicConfig(format=("%(asctime).19s %(levelname)s %(filename)s:"
-                              "%(lineno)s %(message)s "))
-  os.environ['LC_ALL'] = 'C'
-  options, args = parser.parse_args(argv[1:])
-  global verbosity
-  verbosity = options.verbose
-  if verbosity >= 3:
-    logging.getLogger().setLevel(logging.DEBUG)
-  elif verbosity >= 2:
-    logging.getLogger().setLevel(logging.INFO)
-  vcs = GuessVCS(options)
-  if isinstance(vcs, SubversionVCS):
-    # base field is only allowed for Subversion.
-    # Note: Fetching base files may become deprecated in future releases.
-    base = vcs.GuessBase(options.download_base)
-  else:
-    base = None
-  if not base and options.download_base:
-    options.download_base = True
-    logging.info("Enabled upload of base file")
-  if not options.assume_yes:
-    vcs.CheckForUnknownFiles()
-  if data is None:
-    data = vcs.GenerateDiff(args)
-  files = vcs.GetBaseFiles(data)
-  if verbosity >= 1:
-    print "Upload server:", options.server, "(change with -s/--server)"
-  if options.issue:
-    prompt = "Message describing this patch set: "
-  else:
-    prompt = "New issue subject: "
-  message = options.message or raw_input(prompt).strip()
-  if not message:
-    ErrorExit("A non-empty message is required")
-  rpc_server = GetRpcServer(options)
-  form_fields = [("subject", message)]
-  if base:
-    form_fields.append(("base", base))
-  if options.issue:
-    form_fields.append(("issue", str(options.issue)))
-  if options.email:
-    form_fields.append(("user", options.email))
-  if options.reviewers:
-    for reviewer in options.reviewers.split(','):
-      if "@" in reviewer and not reviewer.split("@")[1].count(".") == 1:
-        ErrorExit("Invalid email address: %s" % reviewer)
-    form_fields.append(("reviewers", options.reviewers))
-  if options.cc:
-    for cc in options.cc.split(','):
-      if "@" in cc and not cc.split("@")[1].count(".") == 1:
-        ErrorExit("Invalid email address: %s" % cc)
-    form_fields.append(("cc", options.cc))
-  description = options.description
-  if options.description_file:
-    if options.description:
-      ErrorExit("Can't specify description and description_file")
-    file = open(options.description_file, 'r')
-    description = file.read()
-    file.close()
-  if description:
-    form_fields.append(("description", description))
-  # Send a hash of all the base file so the server can determine if a copy
-  # already exists in an earlier patchset.
-  base_hashes = ""
-  for file, info in files.iteritems():
-    if not info[0] is None:
-      checksum = md5.new(info[0]).hexdigest()
-      if base_hashes:
-        base_hashes += "|"
-      base_hashes += checksum + ":" + file
-  form_fields.append(("base_hashes", base_hashes))
-  # If we're uploading base files, don't send the email before the uploads, so
-  # that it contains the file status.
-  if options.send_mail and options.download_base:
-    form_fields.append(("send_mail", "1"))
-  if not options.download_base:
-    form_fields.append(("content_upload", "1"))
-  if len(data) > MAX_UPLOAD_SIZE:
-    print "Patch is large, so uploading file patches separately."
-    uploaded_diff_file = []
-    form_fields.append(("separate_patches", "1"))
-  else:
-    uploaded_diff_file = [("data", "data.diff", data)]
-  ctype, body = EncodeMultipartFormData(form_fields, uploaded_diff_file)
-  response_body = rpc_server.Send("/upload", body, content_type=ctype)
-  patchset = None
-  if not options.download_base or not uploaded_diff_file:
-    lines = response_body.splitlines()
-    if len(lines) >= 2:
-      msg = lines[0]
-      patchset = lines[1].strip()
-      patches = [x.split(" ", 1) for x in lines[2:]]
-    else:
-      msg = response_body
-  else:
-    msg = response_body
-  StatusUpdate(msg)
-  if not response_body.startswith("Issue created.") and \
-  not response_body.startswith("Issue updated."):
-    sys.exit(0)
-  issue = msg[msg.rfind("/")+1:]
-
-  if not uploaded_diff_file:
-    result = UploadSeparatePatches(issue, rpc_server, patchset, data, options)
-    if not options.download_base:
-      patches = result
-
-  if not options.download_base:
-    vcs.UploadBaseFiles(issue, rpc_server, patches, patchset, options, files)
-    if options.send_mail:
-      rpc_server.Send("/" + issue + "/mail", payload="")
-  return issue, patchset
-
-
-def main():
-  try:
-    RealMain(sys.argv)
-  except KeyboardInterrupt:
-    print
-    StatusUpdate("Interrupted.")
-    sys.exit(1)
-
-
-if __name__ == "__main__":
-  main()
diff --git a/googletest/scripts/upload_gtest.py b/googletest/scripts/upload_gtest.py
deleted file mode 100755
index be19ae8..0000000
--- a/googletest/scripts/upload_gtest.py
+++ /dev/null
@@ -1,78 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2009, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-"""upload_gtest.py v0.1.0 -- uploads a Google Test patch for review.
-
-This simple wrapper passes all command line flags and
---cc=googletestframework@googlegroups.com to upload.py.
-
-USAGE: upload_gtest.py [options for upload.py]
-"""
-
-__author__ = 'wan@google.com (Zhanyong Wan)'
-
-import os
-import sys
-
-CC_FLAG = '--cc='
-GTEST_GROUP = 'googletestframework@googlegroups.com'
-
-
-def main():
-  # Finds the path to upload.py, assuming it is in the same directory
-  # as this file.
-  my_dir = os.path.dirname(os.path.abspath(__file__))
-  upload_py_path = os.path.join(my_dir, 'upload.py')
-
-  # Adds Google Test discussion group to the cc line if it's not there
-  # already.
-  upload_py_argv = [upload_py_path]
-  found_cc_flag = False
-  for arg in sys.argv[1:]:
-    if arg.startswith(CC_FLAG):
-      found_cc_flag = True
-      cc_line = arg[len(CC_FLAG):]
-      cc_list = [addr for addr in cc_line.split(',') if addr]
-      if GTEST_GROUP not in cc_list:
-        cc_list.append(GTEST_GROUP)
-      upload_py_argv.append(CC_FLAG + ','.join(cc_list))
-    else:
-      upload_py_argv.append(arg)
-
-  if not found_cc_flag:
-    upload_py_argv.append(CC_FLAG + GTEST_GROUP)
-
-  # Invokes upload.py with the modified command line flags.
-  os.execv(upload_py_path, upload_py_argv)
-
-
-if __name__ == '__main__':
-  main()
diff --git a/googletest/test/gtest_test_utils.py b/googletest/test/gtest_test_utils.py
index d0c2446..c7f25aa 100755
--- a/googletest/test/gtest_test_utils.py
+++ b/googletest/test/gtest_test_utils.py
@@ -173,7 +173,7 @@
         'Unable to find the test binary "%s". Please make sure to provide\n'
         'a path to the binary via the --build_dir flag or the BUILD_DIR\n'
         'environment variable.' % path)
-    print >> sys.stderr, message
+    print(message, file=sys.stderr)
     sys.exit(1)
 
   return path