bazel: Rename BUILD to BUILD.bazel

Avoids potential naming conflicts with other build systems.

Change-Id: Ib6569cc05c028d5680879724304b17dfc1fae0af
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/49306
Commit-Queue: Akira Baruah <akirabaruah@google.com>
Reviewed-by: Rob Mohr <mohrr@google.com>
Reviewed-by: Nathaniel Brough <nathaniel.brough@gmail.com>
Reviewed-by: Wyatt Hepler <hepler@google.com>
diff --git a/BUILD b/BUILD.bazel
similarity index 100%
rename from BUILD
rename to BUILD.bazel
diff --git a/docs/BUILD b/docs/BUILD.bazel
similarity index 100%
rename from docs/BUILD
rename to docs/BUILD.bazel
diff --git a/docs/style_guide.rst b/docs/style_guide.rst
index e05bde9..e7162df 100644
--- a/docs/style_guide.rst
+++ b/docs/style_guide.rst
@@ -602,3 +602,11 @@
   pw_doc_group("docs") {
     sources = [ "docs.rst" ]
   }
+
+------------------
+Build files: Bazel
+------------------
+
+Similar to their BUILD.gn counterparts, build files for the Bazel build system
+must be named BUILD.bazel. Bazel can interpret files named just BUILD, but we
+use BUILD.bazel to avoid any ambiguity with other build systems or tooling.
diff --git a/pw_allocator/BUILD b/pw_allocator/BUILD.bazel
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rename from pw_allocator/BUILD
rename to pw_allocator/BUILD.bazel
diff --git a/pw_analog/BUILD b/pw_analog/BUILD.bazel
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rename from pw_analog/BUILD
rename to pw_analog/BUILD.bazel
diff --git a/pw_arduino_build/BUILD b/pw_arduino_build/BUILD.bazel
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rename from pw_arduino_build/BUILD
rename to pw_arduino_build/BUILD.bazel
diff --git a/pw_assert/BUILD b/pw_assert/BUILD.bazel
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rename from pw_assert/BUILD
rename to pw_assert/BUILD.bazel
diff --git a/pw_assert_basic/BUILD b/pw_assert_basic/BUILD.bazel
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rename from pw_assert_basic/BUILD
rename to pw_assert_basic/BUILD.bazel
diff --git a/pw_assert_log/BUILD b/pw_assert_log/BUILD.bazel
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rename from pw_assert_log/BUILD
rename to pw_assert_log/BUILD.bazel
diff --git a/pw_base64/BUILD b/pw_base64/BUILD.bazel
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rename from pw_base64/BUILD
rename to pw_base64/BUILD.bazel
diff --git a/pw_bloat/examples/BUILD b/pw_bloat/examples/BUILD.bazel
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rename from pw_bloat/examples/BUILD
rename to pw_bloat/examples/BUILD.bazel
diff --git a/pw_blob_store/BUILD b/pw_blob_store/BUILD.bazel
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rename from pw_blob_store/BUILD
rename to pw_blob_store/BUILD.bazel
diff --git a/pw_blob_store/size_report/BUILD b/pw_blob_store/size_report/BUILD.bazel
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rename from pw_blob_store/size_report/BUILD
rename to pw_blob_store/size_report/BUILD.bazel
diff --git a/pw_boot_armv7m/BUILD b/pw_boot_armv7m/BUILD.bazel
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rename from pw_boot_armv7m/BUILD
rename to pw_boot_armv7m/BUILD.bazel
diff --git a/pw_build/BUILD b/pw_build/BUILD.bazel
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rename from pw_build/BUILD
rename to pw_build/BUILD.bazel
diff --git a/pw_build/constraints/board/BUILD b/pw_build/constraints/board/BUILD.bazel
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rename from pw_build/constraints/board/BUILD
rename to pw_build/constraints/board/BUILD.bazel
diff --git a/pw_build/constraints/chipset/BUILD b/pw_build/constraints/chipset/BUILD.bazel
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rename from pw_build/constraints/chipset/BUILD
rename to pw_build/constraints/chipset/BUILD.bazel
diff --git a/pw_build/constraints/rtos/BUILD b/pw_build/constraints/rtos/BUILD.bazel
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rename from pw_build/constraints/rtos/BUILD
rename to pw_build/constraints/rtos/BUILD.bazel
diff --git a/pw_build/platforms/BUILD b/pw_build/platforms/BUILD.bazel
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rename from pw_build/platforms/BUILD
rename to pw_build/platforms/BUILD.bazel
diff --git a/pw_bytes/BUILD b/pw_bytes/BUILD.bazel
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diff --git a/pw_bytes/size_report/BUILD b/pw_bytes/size_report/BUILD.bazel
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rename to pw_bytes/size_report/BUILD.bazel
diff --git a/pw_checksum/BUILD b/pw_checksum/BUILD.bazel
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rename to pw_checksum/BUILD.bazel
diff --git a/pw_chrono/BUILD b/pw_chrono/BUILD.bazel
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rename to pw_chrono/BUILD.bazel
diff --git a/pw_chrono_embos/BUILD b/pw_chrono_embos/BUILD.bazel
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rename from pw_chrono_embos/BUILD
rename to pw_chrono_embos/BUILD.bazel
diff --git a/pw_chrono_freertos/BUILD b/pw_chrono_freertos/BUILD.bazel
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rename from pw_chrono_freertos/BUILD
rename to pw_chrono_freertos/BUILD.bazel
diff --git a/pw_chrono_stl/BUILD b/pw_chrono_stl/BUILD.bazel
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rename from pw_chrono_stl/BUILD
rename to pw_chrono_stl/BUILD.bazel
diff --git a/pw_chrono_threadx/BUILD b/pw_chrono_threadx/BUILD.bazel
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rename to pw_chrono_threadx/BUILD.bazel
diff --git a/pw_containers/BUILD b/pw_containers/BUILD.bazel
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rename to pw_containers/BUILD.bazel
diff --git a/pw_cpu_exception/BUILD b/pw_cpu_exception/BUILD.bazel
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diff --git a/pw_cpu_exception_cortex_m/BUILD b/pw_cpu_exception_cortex_m/BUILD.bazel
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diff --git a/pw_docgen/BUILD b/pw_docgen/BUILD.bazel
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diff --git a/pw_doctor/BUILD b/pw_doctor/BUILD.bazel
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diff --git a/pw_env_setup/BUILD b/pw_env_setup/BUILD.bazel
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rename to pw_env_setup/BUILD.bazel
diff --git a/pw_env_setup/bazel/cipd_setup/BUILD b/pw_env_setup/bazel/cipd_setup/BUILD.bazel
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rename from pw_env_setup/bazel/cipd_setup/BUILD
rename to pw_env_setup/bazel/cipd_setup/BUILD.bazel
diff --git a/pw_env_setup/bazel/cipd_setup/internal/BUILD b/pw_env_setup/bazel/cipd_setup/internal/BUILD.bazel
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rename from pw_env_setup/bazel/cipd_setup/internal/BUILD
rename to pw_env_setup/bazel/cipd_setup/internal/BUILD.bazel
diff --git a/pw_function/BUILD b/pw_function/BUILD.bazel
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diff --git a/pw_function/size_report/BUILD b/pw_function/size_report/BUILD.bazel
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rename from pw_function/size_report/BUILD
rename to pw_function/size_report/BUILD.bazel
diff --git a/pw_hdlc/BUILD b/pw_hdlc/BUILD.bazel
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diff --git a/pw_hdlc/rpc_example/BUILD b/pw_hdlc/rpc_example/BUILD.bazel
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rename to pw_hdlc/rpc_example/BUILD.bazel
diff --git a/pw_hex_dump/BUILD b/pw_hex_dump/BUILD.bazel
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rename to pw_hex_dump/BUILD.bazel
diff --git a/pw_i2c/BUILD b/pw_i2c/BUILD.bazel
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rename to pw_i2c/BUILD.bazel
diff --git a/pw_interrupt/BUILD b/pw_interrupt/BUILD.bazel
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rename to pw_interrupt/BUILD.bazel
diff --git a/pw_interrupt_cortex_m/BUILD b/pw_interrupt_cortex_m/BUILD.bazel
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diff --git a/pw_kvs/BUILD b/pw_kvs/BUILD.bazel
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diff --git a/pw_kvs/size_report/BUILD b/pw_kvs/size_report/BUILD.bazel
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diff --git a/pw_libc/BUILD b/pw_libc/BUILD.bazel
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rename to pw_libc/BUILD.bazel
diff --git a/pw_log/BUILD b/pw_log/BUILD.bazel
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diff --git a/pw_log_basic/BUILD b/pw_log_basic/BUILD.bazel
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diff --git a/pw_log_multisink/BUILD b/pw_log_multisink/BUILD.bazel
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diff --git a/pw_log_null/BUILD b/pw_log_null/BUILD.bazel
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diff --git a/pw_log_rpc/BUILD b/pw_log_rpc/BUILD.bazel
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diff --git a/pw_log_sink/BUILD b/pw_log_sink/BUILD.bazel
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diff --git a/pw_log_tokenized/BUILD b/pw_log_tokenized/BUILD.bazel
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diff --git a/pw_malloc/BUILD b/pw_malloc/BUILD.bazel
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diff --git a/pw_malloc_freelist/BUILD b/pw_malloc_freelist/BUILD.bazel
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diff --git a/pw_metric/BUILD b/pw_metric/BUILD.bazel
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diff --git a/pw_metric/size_report/BUILD b/pw_metric/size_report/BUILD.bazel
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diff --git a/pw_minimal_cpp_stdlib/BUILD b/pw_minimal_cpp_stdlib/BUILD.bazel
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diff --git a/pw_multisink/BUILD b/pw_multisink/BUILD.bazel
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diff --git a/pw_persistent_ram/BUILD b/pw_persistent_ram/BUILD.bazel
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diff --git a/pw_polyfill/BUILD b/pw_polyfill/BUILD.bazel
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diff --git a/pw_preprocessor/BUILD b/pw_preprocessor/BUILD.bazel
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diff --git a/pw_protobuf_compiler/BUILD b/pw_protobuf_compiler/BUILD.bazel
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diff --git a/pw_random/BUILD b/pw_random/BUILD.bazel
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diff --git a/pw_result/BUILD b/pw_result/BUILD.bazel
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diff --git a/pw_router/BUILD b/pw_router/BUILD.bazel
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diff --git a/pw_snapshot/BUILD b/pw_snapshot/BUILD.bazel
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diff --git a/pw_span/BUILD b/pw_span/BUILD.bazel
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diff --git a/pw_status/BUILD b/pw_status/BUILD.bazel
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diff --git a/pw_stream/BUILD b/pw_stream/BUILD.bazel
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diff --git a/pw_string/BUILD b/pw_string/BUILD.bazel
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diff --git a/pw_sync_baremetal/BUILD b/pw_sync_baremetal/BUILD.bazel
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diff --git a/pw_sys_io/BUILD b/pw_sys_io/BUILD.bazel
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