Our "GIT-VERSION-GEN" script always writes the "GIT-VERSION-FILE" into
the current directory, where the expectation is that it should exist in
the source directory. But other build systems that support out-of-tree
builds may not want to do that to keep the source directory pristine,
even though CMake currently doesn't care.
Refactor the script such that it doesn't write output to a file anymore
but so that it instead writes the version to stdout. This makes it
easier to compute the same version as our Makefile would without having
to write the "GIT-VERSION-FILE".
Signed-off-by: Patrick Steinhardt <ps@xxxxxx>
---
GIT-VERSION-GEN | 12 +-----------
Makefile | 3 ++-
contrib/buildsystems/CMakeLists.txt | 12 ++++--------
3 files changed, 7 insertions(+), 20 deletions(-)
diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 78e8631f677..671f853512a 100755
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,6 +1,5 @@
#!/bin/sh
-GVF=GIT-VERSION-FILE
DEF_VER=v2.47.GIT
LF='
@@ -28,13 +27,4 @@ fi
VN=$(expr "$VN" : v*'\(.*\)')
-if test -r $GVF
-then
- VC=$(sed -e 's/^GIT_VERSION = //' <$GVF)
-else
- VC=unset
-fi
-test "$VN" = "$VC" || {
- echo >&2 "GIT_VERSION = $VN"
- echo "GIT_VERSION = $VN" >$GVF
-}
+echo "$VN"
diff --git a/Makefile b/Makefile
index 2afad000762..461f0216bf6 100644
--- a/Makefile
+++ b/Makefile
@@ -592,7 +592,8 @@ include shared.mak
# Disable -pedantic compilation.
GIT-VERSION-FILE: FORCE
- @$(SHELL_PATH) ./GIT-VERSION-GEN
+ @printf "GIT_VERSION = %s\n" $$($(SHELL_PATH) GIT-VERSION-GEN) >$@+
+ @if cmp $@+ $@ >/dev/null 2>&1; then $(RM) $@+; else cat $@+ >&2 && mv $@+ $@; fi
-include GIT-VERSION-FILE
# Set our default configuration.
diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 2e22e87d188..e1200f294de 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -83,16 +83,12 @@ if(NOT SH_EXE)
"On Windows, you can get it as part of 'Git for Windows' install at https://gitforwindows.org/";)
endif()
-#Create GIT-VERSION-FILE using GIT-VERSION-GEN
-if(NOT EXISTS ${CMAKE_SOURCE_DIR}/GIT-VERSION-FILE)
- message("Generating GIT-VERSION-FILE")
- execute_process(COMMAND ${SH_EXE} ${CMAKE_SOURCE_DIR}/GIT-VERSION-GEN
- WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
-endif()
+execute_process(COMMAND ${SH_EXE} ${CMAKE_SOURCE_DIR}/GIT-VERSION-GEN
+ WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+ OUTPUT_VARIABLE git_version
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
#Parse GIT-VERSION-FILE to get the version
-file(STRINGS ${CMAKE_SOURCE_DIR}/GIT-VERSION-FILE git_version REGEX "GIT_VERSION = (.*)")
-string(REPLACE "GIT_VERSION = " "" git_version ${git_version})
string(FIND ${git_version} "GIT" location)
if(location EQUAL -1)
string(REGEX MATCH "[0-9]*\\.[0-9]*\\.[0-9]*" git_version ${git_version})
--
2.47.0.118.gfd3785337b.dirty
