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egolearner e91b7802f3 feat(ci): enable sccache on Windows and propagate compiler launcher to ExternalProject (#439)
feat(ci): enable sccache on Windows and propagate compiler launcher to ExternalProject

Windows CI builds were ~6-9x slower than other platforms (35-40 min vs
4-7 min) due to missing compiler cache. This commit enables sccache for
Windows and ensures all ExternalProject_Add dependencies (Arrow, lz4)
receive the compiler launcher on every platform.

Changes:

MSVC /Zi → /Z7 compatibility:
- Replace /Zi with /Z7 in root CMakeLists.txt for DEBUG and
  RELWITHDEBINFO configurations (MSVC cache variable level)
- Patch rocksdb, antlr4, and googletest source CMakeLists to replace
  hardcoded /Zi with /Z7 at the source, eliminating D9025 warnings
- Clear COMPILE_PDB_NAME on googletest targets to prevent CMake from
  adding /Fd<path>, which causes sccache to look for nonexistent .pdb
- Remove /FS (forced synchronous PDB writes) from Arrow ExternalProject
  MSVC flags — unnecessary with /Z7

Windows CI workflow:
- Add mozilla-actions/sccache-action@v0.0.10
- Set SCCACHE_GHA_ENABLED=true to use GitHub Actions Cache backend
- Pass CMAKE_C/CXX_COMPILER_LAUNCHER=sccache via --config-settings

Compiler launcher propagation:
- Propagate CMAKE_C/CXX_COMPILER_LAUNCHER to Arrow ExternalProject on
  all platforms (Windows, Linux, macOS, Android, iOS)
- Propagate to lz4 ExternalProject on Windows via CMAKE_ARGS, using
  CMP0141=NEW + CMAKE_MSVC_DEBUG_INFORMATION_FORMAT=Embedded for /Z7
2026-06-02 16:23:37 +08:00

15 行
805 B
Diff

diff --git a/googletest/cmake/internal_utils.cmake b/googletest/cmake/internal_utils.cmake
index 1234567..abcdefg 100644
--- a/googletest/cmake/internal_utils.cmake
+++ b/googletest/cmake/internal_utils.cmake
@@ -72,7 +72,7 @@ macro(config_compiler_and_linker)
fix_default_compiler_settings_()
if (MSVC)
# Newlines inside flags variables break CMake's NMake generator.
# TODO(vladl@google.com): Add -RTCs and -RTCu to debug builds.
- set(cxx_base_flags "-GS -W4 -WX -wd4251 -wd4275 -nologo -J -Zi")
+ set(cxx_base_flags "-GS -W4 -WX -wd4251 -wd4275 -nologo -J /Z7")
set(cxx_base_flags "${cxx_base_flags} -D_UNICODE -DUNICODE -DWIN32 -D_WIN32")
set(cxx_base_flags "${cxx_base_flags} -DSTRICT -DWIN32_LEAN_AND_MEAN")
set(cxx_exception_flags "-EHsc -D_HAS_EXCEPTIONS=1")