Add support for Bzlmod for the next release

https://bazel.build/external/overview#bzlmod

Bzlmod will be the default in a future Bazel release.
By default it requires projects to be registered with the
Bazel Central Registry (https://registry.bazel.build/) and
thus uses regular releases by default.

Users that want to "live-at-head" can still do this through
with overrides (https://bazel.build/external/module#overrides).

This change updates Abseil dependencies to use released versions.
CI uses Bzlmod except in the case of linux_gcc-floor, which will
keep testing the old WORKSPACE-based dependency system.

PiperOrigin-RevId: 597676666
Change-Id: I8d33facc432477c6dc7daa06fd00bb4ae8c4adba

12 files changed, 24 insertions, 11 deletions

diff --git a/ci/cmake_common.sh b/ci/cmake_common.sh
index 98976bc1..784b3815 100644
--- a/ci/cmake_common.sh
+++ b/ci/cmake_common.sh
@@ -14,7 +14,11 @@
 
 # The commit of GoogleTest to be used in the CMake tests in this directory.
 # Keep this in sync with the commit in the WORKSPACE file.
-readonly ABSL_GOOGLETEST_COMMIT="2dd1c131950043a8ad5ab0d2dda0e0970596586a"
+# TODO(dmauro): After the next GoogleTest release, use the stable file required
+# by Bzlmod.  This means downloading a copy of the file and reuploading it to
+# avoid changing checksums if the compression is changed by GitHub.  It also
+# means stop referring to it as a commit and instead use the uploaded filename.
+readonly ABSL_GOOGLETEST_COMMIT="f8d7d77c06936315286eb55f8de22cd23c188571"
 
 # Avoid depending on GitHub by looking for a cached copy of the commit first.
 if [[ -r "${KOKORO_GFILE_DIR:-}/distdir/${ABSL_GOOGLETEST_COMMIT}.zip" ]]; then
diff --git a/ci/linux_arm_clang-latest_libcxx_bazel.sh b/ci/linux_arm_clang-latest_libcxx_bazel.sh
index d751f303..13f4ad13 100755
--- a/ci/linux_arm_clang-latest_libcxx_bazel.sh
+++ b/ci/linux_arm_clang-latest_libcxx_bazel.sh
@@ -86,7 +86,7 @@ for std in ${STD}; do
             --copt=\"-DGTEST_REMOVE_LEGACY_TEST_CASEAPI_=1\" \
             --copt=-Werror \
             --define=\"absl=1\" \
-            --enable_bzlmod=false \
+            --enable_bzlmod=true \
             --features=external_include_paths \
             --keep_going \
             --show_timestamps \
diff --git a/ci/linux_clang-latest_libcxx_asan_bazel.sh b/ci/linux_clang-latest_libcxx_asan_bazel.sh
index 2f847ff6..3153fae4 100755
--- a/ci/linux_clang-latest_libcxx_asan_bazel.sh
+++ b/ci/linux_clang-latest_libcxx_asan_bazel.sh
@@ -84,7 +84,7 @@ for std in ${STD}; do
           --copt="-fsanitize=undefined" \
           --copt="-fno-sanitize-blacklist" \
           --copt=-Werror \
-          --enable_bzlmod=false \
+          --enable_bzlmod=true \
           --features=external_include_paths \
           --keep_going \
           --linkopt="-fsanitize=address" \
diff --git a/ci/linux_clang-latest_libcxx_bazel.sh b/ci/linux_clang-latest_libcxx_bazel.sh
index 6e31fe53..4f3eba49 100755
--- a/ci/linux_clang-latest_libcxx_bazel.sh
+++ b/ci/linux_clang-latest_libcxx_bazel.sh
@@ -86,7 +86,7 @@ for std in ${STD}; do
             --copt=\"-DGTEST_REMOVE_LEGACY_TEST_CASEAPI_=1\" \
             --copt=-Werror \
             --define=\"absl=1\" \
-            --enable_bzlmod=false \
+            --enable_bzlmod=true \
             --features=external_include_paths \
             --keep_going \
             --show_timestamps \
diff --git a/ci/linux_clang-latest_libcxx_tsan_bazel.sh b/ci/linux_clang-latest_libcxx_tsan_bazel.sh
index 715fb859..06f4c2ec 100755
--- a/ci/linux_clang-latest_libcxx_tsan_bazel.sh
+++ b/ci/linux_clang-latest_libcxx_tsan_bazel.sh
@@ -82,7 +82,7 @@ for std in ${STD}; do
           --copt="-fsanitize=thread" \
           --copt="-fno-sanitize-blacklist" \
           --copt=-Werror \
-          --enable_bzlmod=false \
+          --enable_bzlmod=true \
           --features=external_include_paths \
           --keep_going \
           --linkopt="-fsanitize=thread" \
diff --git a/ci/linux_clang-latest_libstdcxx_bazel.sh b/ci/linux_clang-latest_libstdcxx_bazel.sh
index 8aea159d..d499e13c 100755
--- a/ci/linux_clang-latest_libstdcxx_bazel.sh
+++ b/ci/linux_clang-latest_libstdcxx_bazel.sh
@@ -80,7 +80,7 @@ for std in ${STD}; do
           --copt="-march=haswell" \
           --copt=-Werror \
           --define="absl=1" \
-          --enable_bzlmod=false \
+          --enable_bzlmod=true \
           --features=external_include_paths \
           --keep_going \
           --linkopt="--gcc-toolchain=/usr/local" \
diff --git a/ci/linux_gcc-floor_libstdcxx_bazel.sh b/ci/linux_gcc-floor_libstdcxx_bazel.sh
index 68b39994..5bd1dbf8 100755
--- a/ci/linux_gcc-floor_libstdcxx_bazel.sh
+++ b/ci/linux_gcc-floor_libstdcxx_bazel.sh
@@ -59,6 +59,9 @@ if [[ ${KOKORO_GFILE_DIR:-} ]] && [[ -d "${KOKORO_GFILE_DIR}/distdir" ]]; then
   BAZEL_EXTRA_ARGS="--distdir=/distdir ${BAZEL_EXTRA_ARGS:-}"
 fi
 
+# TODO(absl-team): This currently uses Bazel 5. When upgrading to a version
+# of Bazel that supports Bzlmod, add --enable_bzlmod=false to keep test
+# coverage for the old WORKSPACE dependency management.
 for std in ${STD}; do
   for compilation_mode in ${COMPILATION_MODE}; do
     for exceptions_mode in ${EXCEPTIONS_MODE}; do
diff --git a/ci/linux_gcc-latest_libstdcxx_bazel.sh b/ci/linux_gcc-latest_libstdcxx_bazel.sh
index 6f965a0e..8f773466 100755
--- a/ci/linux_gcc-latest_libstdcxx_bazel.sh
+++ b/ci/linux_gcc-latest_libstdcxx_bazel.sh
@@ -84,7 +84,7 @@ for std in ${STD}; do
             --copt=\"-DGTEST_REMOVE_LEGACY_TEST_CASEAPI_=1\" \
             --copt=-Werror \
             --define=\"absl=1\" \
-            --enable_bzlmod=false \
+            --enable_bzlmod=true \
             --features=external_include_paths \
             --keep_going \
             --show_timestamps \
diff --git a/ci/macos_xcode_bazel.sh b/ci/macos_xcode_bazel.sh
index 460f94da..bb8fb4bd 100755
--- a/ci/macos_xcode_bazel.sh
+++ b/ci/macos_xcode_bazel.sh
@@ -56,7 +56,7 @@ ${BAZEL_BIN} test ... \
   --copt="-DGTEST_REMOVE_LEGACY_TEST_CASEAPI_=1" \
   --copt="-Werror" \
   --cxxopt="-std=c++14" \
-  --enable_bzlmod=false \
+  --enable_bzlmod=true \
   --features=external_include_paths \
   --keep_going \
   --show_timestamps \
diff --git a/ci/windows_clangcl_bazel.bat b/ci/windows_clangcl_bazel.bat
index 246b733b..5162628b 100755
--- a/ci/windows_clangcl_bazel.bat
+++ b/ci/windows_clangcl_bazel.bat
@@ -48,7 +48,7 @@ IF NOT "%ALTERNATE_OPTIONS%"=="" copy %ALTERNATE_OPTIONS% absl\base\options.h
   --copt=-Wno-microsoft-cast ^
   --define=absl=1 ^
   --distdir=%KOKORO_GFILE_DIR%\distdir ^
-  --enable_bzlmod=false ^
+  --enable_bzlmod=true ^
   --extra_execution_platforms=//absl:x64_windows-clang-cl ^
   --extra_toolchains=@local_config_cc//:cc-toolchain-x64_windows-clang-cl ^
   --keep_going ^
diff --git a/ci/windows_msvc_bazel.bat b/ci/windows_msvc_bazel.bat
index f13398a6..e2acf5fd 100755
--- a/ci/windows_msvc_bazel.bat
+++ b/ci/windows_msvc_bazel.bat
@@ -41,7 +41,7 @@ IF NOT "%ALTERNATE_OPTIONS%"=="" copy %ALTERNATE_OPTIONS% absl\base\options.h
   --copt=/std:%STD% ^
   --define=absl=1 ^
   --distdir=%KOKORO_GFILE_DIR%\distdir ^
-  --enable_bzlmod=false ^
+  --enable_bzlmod=true ^
   --keep_going ^
   --test_env="GTEST_INSTALL_FAILURE_SIGNAL_HANDLER=1" ^
   --test_env=TZDIR="%CD%\absl\time\internal\cctz\testdata\zoneinfo" ^
diff --git a/ci/windows_msvc_cmake.bat b/ci/windows_msvc_cmake.bat
index b026352a..c0f1ac94 100755
--- a/ci/windows_msvc_cmake.bat
+++ b/ci/windows_msvc_cmake.bat
@@ -14,7 +14,13 @@
 
 SETLOCAL ENABLEDELAYEDEXPANSION
 
-SET ABSL_GOOGLETEST_COMMIT=2dd1c131950043a8ad5ab0d2dda0e0970596586a
+:: The commit of GoogleTest to be used in the CMake tests in this directory.
+:: Keep this in sync with the commit in the WORKSPACE file.
+:: TODO(dmauro): After the next GoogleTest release, use the stable file required
+:: by Bzlmod.  This means downloading a copy of the file and reuploading it to
+:: avoid changing checksums if the compression is changed by GitHub.  It also
+:: means stop referring to it as a commit and instead use the uploaded filename.
+SET ABSL_GOOGLETEST_COMMIT=f8d7d77c06936315286eb55f8de22cd23c188571
 
 IF EXIST %KOKORO_GFILE_DIR%\distdir\%ABSL_GOOGLETEST_COMMIT%.zip (
   SET ABSL_GOOGLETEST_DOWNLOAD_URL=file://%KOKORO_GFILE_DIR%\distdir\%ABSL_GOOGLETEST_COMMIT%.zip