Migrate ruby release targets to genrule to work around Bazel 5 bug

.github/workflows/ruby_install.yml

@@ -40,16 +40,16 @@ jobs:
         with:
           submodules: recursive
       - name: Build cruby gem
-        run: $HOME/bin/bazel run ruby:release
+        run: $HOME/bin/bazel build ruby:release
         if: ${{ !contains(matrix.ruby, 'jruby') }}
       - name: Install cruby gem
-        run: gem install bazel-bin/ruby/release.runfiles/com_google_protobuf/tmp/google-protobuf-*
+        run: gem install bazel-bin/ruby/google-protobuf-*
         if: ${{ !contains(matrix.ruby, 'jruby') }}
       - name: Build jruby gem
-        run: $HOME/bin/bazel run ruby:jruby_release
+        run: $HOME/bin/bazel build ruby:jruby_release
         if: ${{ contains(matrix.ruby, 'jruby') }}
       - name: Install jruby gem
-        run: gem install bazel-bin/ruby/jruby_release.runfiles/com_google_protobuf/tmp/google-protobuf-*
+        run: gem install bazel-bin/ruby/google-protobuf-*
         if: ${{ contains(matrix.ruby, 'jruby') }}
       - name: Test installation
         run: |

ruby/BUILD.bazel

@@ -4,6 +4,7 @@
 
 load("@rules_pkg//:mappings.bzl", "pkg_files", "strip_prefix")
 load("@rules_ruby//ruby:defs.bzl", "ruby_library")
+load("//build_defs:internal_shell.bzl", "inline_sh_binary")
 load("//:protobuf.bzl", "internal_ruby_proto_library")
 load("//conformance:defs.bzl", "conformance_test")
 load("//:protobuf_version.bzl", "PROTOBUF_RUBY_VERSION")
@@ -20,44 +21,71 @@ ruby_library(
     ],
 )
 
-sh_binary(
+# Note: these can be greatly simplified using inline_sh_binary in Bazel 6,
+# but doesn't work prior to that due to https://github.com/bazelbuild/bazel/issues/15043.
+# Instead, we need to manually copy all of the srcs into gendir from a genrule.
+genrule(
     name = "jruby_release",
-    data = [
+    srcs = [
       "//ruby/lib/google:copy_jar",
       "//ruby/lib/google:dist_files",
       "//:well_known_ruby_protos",
       "google-protobuf.gemspec",
     ],
-    srcs = [
-      "build_jruby_release.sh",
-    ],
-    deps = ["@bazel_tools//tools/bash/runfiles"],
+    outs = ["google-protobuf-"+PROTOBUF_RUBY_VERSION+"-java.gem"],
+    cmd = """
+        set -eux
+        for src in $(SRCS); do
+            cp --parents "$$src" "$(GENDIR)"
+        done
+        for wkt in $(execpaths //:well_known_ruby_protos); do
+            cp "$$wkt" "$(GENDIR)/ruby/lib/google/protobuf/"
+        done
+        cd $(GENDIR)/ruby
+        chmod -R 777 ./
+        gem build google-protobuf.gemspec
+    """,
     target_compatible_with = select({
         "@rules_ruby//ruby/runtime:config_jruby": [],
         "//conditions:default": ["@platforms//:incompatible"],
     }),
 )
 
-sh_binary(
+genrule(
     name = "release",
-    data = [
+    srcs = [
       "@utf8_range//:utf8_range_srcs",
       "@utf8_range//:LICENSE",
       "//:well_known_ruby_protos",
       "//ruby/ext/google/protobuf_c:dist_files",
       "//ruby/lib/google:dist_files",
       "google-protobuf.gemspec",
     ],
-    srcs = [
-      "build_release.sh",
-    ],
-    deps = ["@bazel_tools//tools/bash/runfiles"],
+    outs = ["google-protobuf-"+PROTOBUF_RUBY_VERSION+".gem"],
+    cmd = """
+        set -eux
+        for src in $(SRCS); do
+            cp --parents "$$src" "$(GENDIR)"
+        done
+        mkdir -p "$(GENDIR)/ruby/ext/google/protobuf_c/third_party/utf8_range"
+        for utf in $(execpaths @utf8_range//:utf8_range_srcs) $(execpath @utf8_range//:LICENSE); do
+            cp "$$utf" "$(GENDIR)/ruby/ext/google/protobuf_c/third_party/utf8_range"
+        done
+        for wkt in $(execpaths //:well_known_ruby_protos); do
+            cp "$$wkt" "$(GENDIR)/ruby/lib/google/protobuf/"
+        done
+        cd $(GENDIR)/ruby
+        chmod -R 777 ./
+        gem build google-protobuf.gemspec
+        pwd
+    """,
     target_compatible_with = select({
         "@rules_ruby//ruby/runtime:config_ruby": [],
         "//conditions:default": ["@platforms//:incompatible"],
     }),
 )
 
+
 ################################################################################
 # Tests
 ################################################################################