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Make VERSION generation more robust.

Browse source 
Relax the "are we in a git repo?" check to succeed even if the top level
jemalloc directory is not at the top level of the git repo.

Add git tag filtering so that only version triplets match when
generating VERSION.

Add fallback bogus VERSION creation, so that in the worst case, rather
than generating empty values for e.g. JEMALLOC_VERSION_MAJOR,
configuration ends up generating useless constants.
This commit is contained in:
Jason Evans 2014-09-02 15:07:07 -07:00
parent 3ebf6db2c7
commit a5a658ab48
1 changed files with 26 additions and 4 deletions
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30
configure.ac
View file

@ -1029,11 +1029,33 @@ dnl ============================================================================
dnl jemalloc configuration.
dnl
dnl Set VERSION if source directory has an embedded git repository or is a git submodule.
if test -e "${srcroot}.git" ; then
git describe --long --abbrev=40 > ${srcroot}VERSION
dnl Set VERSION if source directory is inside a git repository.
if test "x`git rev-parse --is-inside-work-tree 2>/dev/null`" = "xtrue" ; then
dnl Pattern globs aren't powerful enough to match both single- and
dnl double-digit version numbers, so iterate over patterns to support up to
dnl version 99.99.99 without any accidental matches.
rm -f "${srcroot}VERSION"
for pattern in ['[0-9].[0-9].[0-9]' '[0-9].[0-9].[0-9][0-9]' \
'[0-9].[0-9][0-9].[0-9]' '[0-9].[0-9][0-9].[0-9][0-9]' \
'[0-9][0-9].[0-9].[0-9]' '[0-9][0-9].[0-9].[0-9][0-9]' \
'[0-9][0-9].[0-9][0-9].[0-9]' \
'[0-9][0-9].[0-9][0-9].[0-9][0-9]']; do
if test ! -e "${srcroot}VERSION" ; then
git describe --long --abbrev=40 --match="${pattern}" > "${srcroot}VERSION.tmp" 2>/dev/null
if test $? -eq 0 ; then
mv "${srcroot}VERSION.tmp" "${srcroot}VERSION"
break
fi
fi
done
fi
jemalloc_version=`cat ${srcroot}VERSION`
rm -f "${srcroot}VERSION.tmp"
if test ! -e "${srcroot}VERSION" ; then
AC_MSG_RESULT(
[Missing VERSION file, and unable to generate it; creating bogus VERSION])
echo "0.0.0-0-g0000000000000000000000000000000000000000" > "${srcroot}VERSION"
fi
jemalloc_version=`cat "${srcroot}VERSION"`
jemalloc_version_major=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]1}'`
jemalloc_version_minor=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]2}'`
jemalloc_version_bugfix=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]3}'`