#!/bin/sh
-. config.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=`cat .patchnum 2>/dev/null`
-Existing_Sha1=`cat .sha1 2>/dev/null`
+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`
-if [ -e ".patch" ]; then
- Current=`awk '{print $4}' .patch`
- Sha1=`awk '{print $3}' .patch`
+unpushed_commits='/*no-op*/'
+if [ -s ".patch" ] ; then
+ read branch snapshot_created commit_id describe < .patch
+ changed=""
+ extra_info="git_snapshot_date='$snapshot_created'"
+ commit_title='Snapshot of:'
elif [ -d ".git" ]; then
- # we should do something better here
- Current=`git describe`
- Sha1=`git rev-parse HEAD`
- Changed=`git diff-index --name-only HEAD`
- [ -n "$Changed" ] && Current="$Current-with-uncommitted-changes"
-fi
+ 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'`
+ new_patchnum="describe: $describe"
+ extra_info="git_commit_date='$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 ",\"" $2 "\""}'`
-if [ "$Existing" != "$Current" -o "$Existing_Sha1" != "$Sha1" ]; then
- (echo "hi there\c" ; echo " ") >.echotmp
- if $contains c .echotmp >/dev/null 2>&1 ; then
- n='-n'
- c=''
- else
- n=''
- c='\c'
+ if [ -n "$unpushed_commits" ]; then
+ commit_title="Local Commit:"
+ ancestor=`git rev-parse $remote/$branch`
+ extra_info="$extra_info
+git_ancestor='$ancestor'
+git_unpushed='$unpushed_commit_list'"
+ fi
+
+ fi
+ if [ -n "$changed" ]; then
+ changed="true"
+ commit_title="Derived from:"
+ new_patchnum="$new_patchnum
+status: uncommitted-changes"
fi
- rm -f .echotmp
- echo "Updating .patchnum and .sha1"
- echo $n "$Current$c" > .patchnum
- echo $n "$Sha1$c" > .sha1
+ test -z "$commit_title" && commit_title='Commit id:'
+fi
+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 .sha1"
+ echo "Reusing .patchnum and lib/Config_git.pl"
fi
+