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|
#!/bin/sh
# this script is used to regenerate a number of special build files
# based on either information contained in a file called .patch or
# directly from git.
# The files involved are:
# .patchnum # information about the current checkout
# lib/Config_git.pl # holds some special configure settings related to git
# unpushed.h # header file used by patchlevel.h to store unpushed commits
existing_patchnum=$(cat .patchnum 2>/dev/null)
existing_config=$(cat lib/Config_git.pl 2>/dev/null)
existing_unpushed=$(cat unpushed.h 2>/dev/null)
unpushed_commits='/*no-op*/'
if [ -s ".patch" ] ; then
# this is the minimal expectation for the
read branch snapshot_created commit_id describe < .patch
changed=""
extra_info="git_snapshot_date='$snapshot_created'"
commit_title='Snapshot of:'
elif [ -d ".git" ]; then
branch=$(git branch | awk 'BEGIN{ORS=""} /\*/ { print $2 }')
test -n "$branch" && remote=$(git config branch.$branch.remote)
commit_id=$(git rev-parse HEAD)
changed=$(git diff-index --name-only HEAD)
describe=$(git describe --tags)
commit_created=$(git log -1 --pretty='format:%ci')
extra_info="git_commit_date='$commit_created'"
if [ -n "$branch" ] && [ -n "$remote" ]; then
unpushed_commit_list=$(git cherry $remote/$branch | awk 'BEGIN{ORS=","} /+/ {print $2}' | sed -e 's/,$//')
unpushed_commits=$(git cherry $remote/$branch | awk 'BEGIN{ORS="\t\\\n"} /+/ {print ",\"" $2 "\""}')
if [ -n "$unpushed_commits" ]; then
commit_title="Local Commit:"
ancestor=`git rev-parse $remote/$branch`
extra_info="$extra_info
git_ancestor='$ancestor'
git_unpushed='$unpushed_commit_list'"
fi
fi
else
cat <<SNDOGS
Something is wrong with your source tree. You should
either have a .git directory and a functional git toolset
OR should have a .patch file in the source tree. Please
report the particulars of this situation to
perl5-porters@perl.org.
SNDOGS
exit 2
fi
# Set up defaults for various values
new_patchnum="describe: $describe"
if [ -n "$changed" ]; then
changed="true"
commit_title="Derived from:"
new_patchnum="$new_patchnum
status: uncommitted-changes"
fi
test -z "$commit_title" && commit_title='Commit id:'
new_unpushed=$(cat <<EOFTEXT
/*********************************************************************
* WARNING: unpushed.h is automatically generated by make_patchnum.sh *
* DO NOT EDIT DIRECTLY - edit make_patchnum.sh instead *
*********************************************************************/
#define PERL_GIT_UNPUSHED_COMMITS $unpushed_commits
/*leave-this-comment*/
EOFTEXT
)
new_config=$(cat <<EOFDATA
#################################################################
# WARNING: lib/Config_git.pl is generated by make_patchnum.sh #
# DO NOT EDIT DIRECTLY - edit make_patchnum.sh instead #
#################################################################
\$Config::Git_Data=<<'ENDOFGIT';
git_commit_id='$commit_id'
git_describe='$describe'
git_branch='$branch'
git_uncommitted_changes='$changed'
git_commit_id_title='$commit_title'
$extra_info
ENDOFGIT
EOFDATA
)
# only update the files if necessary, other build product depends on these files
if [ "$existing_patchnum" != "$new_patchnum" ] || [ "$new_config" != "$existing_config" ] || [ "$existing_unpushed" != "$new_unpushed" ]; then
echo "Updating .patchnum and lib/Config_git.pl"
echo "$new_patchnum" > .patchnum
echo "$new_config" > lib/Config_git.pl
echo "$new_unpushed" > unpushed.h
else
echo "Reusing .patchnum and lib/Config_git.pl"
fi
|
