Release s390x binaries on Github (#1289)

buildifier/BUILD.bazel

diff --git a/buildifier/BUILD.bazel b/buildifier/BUILD.bazel
index 0725808..39ed680 100644
--- a/buildifier/BUILD.bazel
+++ b/buildifier/BUILD.bazel
@@ -57,6 +57,16 @@
     visibility = ["//visibility:public"],
 )
 
+go_binary(
+    name = "buildifier-linux-s390x",
+    out = "buildifier-linux_s390x",
+    embed = [":buildifier_lib"],
+    goarch = "s390x",
+    goos = "linux",
+    pure = "on",
+    visibility = ["//visibility:public"],
+)
+
 # Test that the buildifier binary works
 sh_test(
     name = "buildifier_integration_test",

buildozer/BUILD.bazel

diff --git a/buildozer/BUILD.bazel b/buildozer/BUILD.bazel
index fa668ff..722a99e 100644
--- a/buildozer/BUILD.bazel
+++ b/buildozer/BUILD.bazel
@@ -87,6 +87,16 @@
     visibility = ["//visibility:public"],
 )
 
+go_binary(
+    name = "buildozer-linux-s390x",
+    out = "buildozer-linux_s390x",
+    embed = [":buildozer_lib"],
+    goarch = "s390x",
+    goos = "linux",
+    pure = "on",
+    visibility = ["//visibility:public"],
+)
+
 exports_files(
     [
         "README.md",

release/github.sh

diff --git a/release/github.sh b/release/github.sh
index fa0ac7b..7ef7f6e 100755
--- a/release/github.sh
+++ b/release/github.sh
@@ -24,6 +24,7 @@
 for tool in "buildifier" "buildozer" "unused_deps"; do
   cp bazel-bin/"$tool/$tool-linux_amd64" $BIN_DIR
   cp bazel-bin/"$tool/$tool-linux_arm64" $BIN_DIR
+  cp bazel-bin/"$tool/$tool-linux_s390x" $BIN_DIR
   cp bazel-bin/"$tool/$tool-darwin_amd64" $BIN_DIR
   cp bazel-bin/"$tool/$tool-darwin_arm64" $BIN_DIR
   cp bazel-bin/"$tool/$tool-windows_amd64.exe" $BIN_DIR
@@ -44,6 +45,7 @@
 for tool in "buildifier" "buildozer" "unused_deps"; do
   upload_file "$BIN_DIR/$tool-linux_amd64" "$tool-linux-amd64"
   upload_file "$BIN_DIR/$tool-linux_arm64" "$tool-linux-arm64"
+  upload_file "$BIN_DIR/$tool-linux_s390x" "$tool-linux-s390x"
   upload_file "$BIN_DIR/$tool-darwin_amd64" "$tool-darwin-amd64"
   upload_file "$BIN_DIR/$tool-darwin_arm64" "$tool-darwin-arm64"
   upload_file "$BIN_DIR/$tool-windows_amd64.exe" "$tool-windows-amd64.exe"

unused_deps/BUILD.bazel

diff --git a/unused_deps/BUILD.bazel b/unused_deps/BUILD.bazel
index 9be3e75..735830a 100644
--- a/unused_deps/BUILD.bazel
+++ b/unused_deps/BUILD.bazel
@@ -79,6 +79,16 @@
     visibility = ["//visibility:public"],
 )
 
+go_binary(
+    name = "unused_deps-linux-s390x",
+    out = "unused_deps-linux_s390x",
+    embed = [":unused_deps_lib"],
+    goarch = "s390x",
+    goos = "linux",
+    pure = "on",
+    visibility = ["//visibility:public"],
+)
+
 go_test(
     name = "jar_manifest_test",
     size = "small",