haiku/build/scripts/determine_haiku_revision
Michael Lotz 901c33fcd0 Replace the $(...) syntax with backticks instead.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41721 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-05-24 21:14:41 +00:00

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#!/bin/sh
determineGitRevision()
{
haikuTop=$1
haikuBuildOutputDir=$2
revision=`cat ${haikuBuildOutputDir}/haiku-revision 2>/dev/null`
lastBuiltRevision=`cat ${haikuBuildOutputDir}/last-built-revision \
2>/dev/null`
localRev=`git rev-list -n1 HEAD`
# only determine the haiku-revision if anything has changed from
# last build
if [ -z "$revision" -o "$lastBuiltRevision" != "$localRev" ]; then
haikuBranch=`git describe --abbrev=0 --match 'haiku/*.base' \
| $SED -re 's/haiku\/(.*)\.base/\1/'`
if [ -z "$haikuBranch" ]; then
echo "*** unable to find haiku branch the build is based on"
exit 1;
fi
haikuTip=`git rev-list -n1 haiku/${haikuBranch}.tip`
if [ -z "$haikuTip" ]; then
echo "*** unable to find tip of haiku branch the build is based on"
exit 1;
fi
# make sure that haiku-tip matches the remote tracking branch,
# otherwise the tag hasn't been fetched/updated and we should
# print a warning
trackingBranch=`git branch -r --contains $haikuTip \
| grep -v -- '->' | tr -d ' '`
if [ -z "$trackingBranch" ]; then
echo "*** unable to find tracking branch the build is based on"
exit 1;
fi
haikuTipLag=`git rev-list --count ${haikuTip}..$trackingBranch`
if [ "$haikuTipLag" != "0" ]; then
echo "*********************************************************"
echo "!!! haiku/${haikuBranch}.tip is $haikuTipLag behind \
remote tracking branch"
echo "!!! you may want to 'git fetch --tags' to update the tag"
echo "*********************************************************"
fi
# the haiku revision the HEAD is based on is the nearest common ancestor
# of these two (i.e. the merge base)
haikuBaseRev=`git merge-base $localRev $haikuTip`
if [ -z "$haikuTip" ]; then
echo "*** unable to find merge-base for haiku tip and build"
exit 1;
fi
# the revision we use is the description of HEAD with
# respect to the root of the current branch
revision=`git describe --dirty --long --match=haiku/$haikuBranch`
if [ "$localRev" != "$haikuBaseRev" ]; then
# HEAD is not a changeset from Haiku's central repo, so we add
# a description of the changeset in Haiku's repo HEAD is based on
haikuBaseRevDescr=`git describe --long --match=haiku/$haikuBranch \
$haikuBaseRev`
revision="$revision [$haikuBaseRevDescr]"
fi
echo $localRev >${haikuBuildOutputDir}/last-built-revision
fi
}
determineHaikuRevision()
{
haikuTop=$1
haikuBuildOutputDir=$2
case `uname` in
Darwin)
SED=gsed
;;
*)
SED=sed
;;
esac
export SED
originalDir=`pwd`
cd ${haikuTop}
export LC_ALL=C
if [ -d .svn ]; then
revision=`svn info 2>/dev/null | grep Revision | awk '{printf $2}'`
elif [ -d .git/svn ]; then
revision=`git svn info 2>/dev/null | grep Revision | awk '{printf $2}'`
elif [ -d .git ]; then
determineGitRevision $haikuTop $haikuBuildOutputDir
elif [ -d .hg ]; then
# Try searching hg log for last svn commit
# Extract from "(svn r12345) ..." line
revision=`(cd ${haikuTop} &&
hg log --no-merges --template "{desc|firstline}\n") 2> /dev/null |
grep --max-count=1 "(svn r" |
$SED -n -e 's,(svn r\(.*\)).*,\1,p'`
fi
if [ "$revision" = "" ]; then
revision=0
fi
echo $revision >${haikuBuildOutputDir}/haiku-revision
cd $originalDir
}