From 0c8d33951400f7d7175e1dad51e970fb70849f2b Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Fri, 6 Dec 2024 14:24:39 +0100 Subject: [PATCH] Makefile: propagate Git version via generated header We set up a couple of preprocessor macros when compiling Git that propagate the version that Git was built from to `git version` et al. The way this is set up makes it harder than necessary to reuse the infrastructure across the different build systems. Refactor this such that we generate a "version-def.h" header via `GIT-VERSION-GEN` instead. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- .gitignore | 1 + GIT-VERSION-GEN | 7 +++++++ Makefile | 13 ++++++------- contrib/buildsystems/CMakeLists.txt | 16 ++++++++++++---- version-def.h.in | 8 ++++++++ version.c | 1 + 6 files changed, 35 insertions(+), 11 deletions(-) create mode 100644 version-def.h.in diff --git a/.gitignore b/.gitignore index 6687bd6db4..e17963e842 100644 --- a/.gitignore +++ b/.gitignore @@ -195,6 +195,7 @@ /config-list.h /command-list.h /hook-list.h +/version-def.h *.tar.gz *.dsc *.deb diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN index 7afc7aad14..c18f24e515 100755 --- a/GIT-VERSION-GEN +++ b/GIT-VERSION-GEN @@ -52,6 +52,11 @@ else fi GIT_VERSION=$(expr "$VN" : v*'\(.*\)') +GIT_BUILT_FROM_COMMIT=$(git -C "$SOURCE_DIR" rev-parse -q --verify HEAD 2>/dev/null) +if test -z "$GIT_USER_AGENT" +then + GIT_USER_AGENT="git/$GIT_VERSION" +fi read GIT_MAJOR_VERSION GIT_MINOR_VERSION GIT_MICRO_VERSION trailing <"$OUTPUT"+ if ! test -f "$OUTPUT" || ! cmp "$OUTPUT"+ "$OUTPUT" >/dev/null diff --git a/Makefile b/Makefile index 73510d6bcb..7150ffc39c 100644 --- a/Makefile +++ b/Makefile @@ -2508,13 +2508,11 @@ PAGER_ENV_CQ_SQ = $(subst ','\'',$(PAGER_ENV_CQ)) pager.sp pager.s pager.o: EXTRA_CPPFLAGS = \ -DPAGER_ENV='$(PAGER_ENV_CQ_SQ)' -version.sp version.s version.o: GIT-VERSION-FILE GIT-USER-AGENT -version.sp version.s version.o: EXTRA_CPPFLAGS = \ - '-DGIT_VERSION="$(GIT_VERSION)"' \ - '-DGIT_USER_AGENT=$(GIT_USER_AGENT_CQ_SQ)' \ - '-DGIT_BUILT_FROM_COMMIT="$(shell \ - GIT_CEILING_DIRECTORIES="$(CURDIR)/.." \ - git rev-parse -q --verify HEAD 2>/dev/null)"' +version-def.h: version-def.h.in GIT-VERSION-GEN GIT-VERSION-FILE GIT-USER-AGENT + $(QUIET_GEN)GIT_USER_AGENT="$(GIT_USER_AGENT)" $(SHELL_PATH) ./GIT-VERSION-GEN "$(shell pwd)" $< $@+ + @if cmp $@+ $@ >/dev/null 2>&1; then $(RM) $@+; else mv $@+ $@; fi + +version.sp version.s version.o: version-def.h $(BUILT_INS): git$X $(QUIET_BUILT_IN)$(RM) $@ && \ @@ -3728,6 +3726,7 @@ clean: profile-clean coverage-clean cocciclean $(RM) $(FUZZ_PROGRAMS) $(RM) $(SP_OBJ) $(RM) $(HCC) + $(RM) version-def.h $(RM) -r bin-wrappers $(dep_dirs) $(compdb_dir) compile_commands.json $(RM) -r po/build/ $(RM) *.pyc *.pyo */*.pyc */*.pyo $(GENERATED_H) $(ETAGS_TARGET) tags cscope* diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt index 376d748ce9..3cc5e31819 100644 --- a/contrib/buildsystems/CMakeLists.txt +++ b/contrib/buildsystems/CMakeLists.txt @@ -229,10 +229,7 @@ add_compile_definitions(PAGER_ENV="LESS=FRX LV=-c" GIT_HTML_PATH="share/doc/git-doc" DEFAULT_HELP_FORMAT="html" DEFAULT_GIT_TEMPLATE_DIR="share/git-core/templates" - GIT_VERSION="${PROJECT_VERSION}.GIT" - GIT_USER_AGENT="git/${PROJECT_VERSION}.GIT" - BINDIR="bin" - GIT_BUILT_FROM_COMMIT="") + BINDIR="bin") if(WIN32) set(FALLBACK_RUNTIME_PREFIX /mingw64) @@ -668,6 +665,17 @@ parse_makefile_for_sources(libgit_SOURCES "LIB_OBJS") list(TRANSFORM libgit_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/") list(TRANSFORM compat_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/") + +add_custom_command(OUTPUT "${CMAKE_BINARY_DIR}/version-def.h" + COMMAND "${SH_EXE}" "${CMAKE_SOURCE_DIR}/GIT-VERSION-GEN" + "${CMAKE_SOURCE_DIR}" + "${CMAKE_SOURCE_DIR}/version-def.h.in" + "${CMAKE_BINARY_DIR}/version-def.h" + DEPENDS "${SH_EXE}" "${CMAKE_SOURCE_DIR}/GIT-VERSION-GEN" + "${CMAKE_SOURCE_DIR}/version-def.h.in" + VERBATIM) +list(APPEND libgit_SOURCES "${CMAKE_BINARY_DIR}/version-def.h") + add_library(libgit ${libgit_SOURCES} ${compat_SOURCES}) #libxdiff diff --git a/version-def.h.in b/version-def.h.in new file mode 100644 index 0000000000..347995df06 --- /dev/null +++ b/version-def.h.in @@ -0,0 +1,8 @@ +#ifndef VERSION_DEF_H +#define VERSION_DEF_H + +#define GIT_VERSION "@GIT_VERSION@" +#define GIT_BUILT_FROM_COMMIT "@GIT_BUILT_FROM_COMMIT@" +#define GIT_USER_AGENT "@GIT_USER_AGENT@" + +#endif /* VERSION_DEF_H */ diff --git a/version.c b/version.c index 41b718c29e..7adc4d51ff 100644 --- a/version.c +++ b/version.c @@ -1,5 +1,6 @@ #include "git-compat-util.h" #include "version.h" +#include "version-def.h" #include "strbuf.h" const char git_version_string[] = GIT_VERSION; -- 2.47.2