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From: Max Laier <mlaier@FreeBSD.org>
Date: Sat, 19 Sep 2009 21:46:12 +0000 (UTC)
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Subject: svn commit: r197334 - head/sys/conf
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Author: mlaier
Date: Sat Sep 19 21:46:12 2009
New Revision: 197334
URL: http://svn.freebsd.org/changeset/base/197334

Log:
  Extract version information from git repositories. Try to find a
  corresponding svn version if this is a git-svn clone'ed repo.
  This prefers svn version information over git in case a working
  directory has both .svn and .git directories.
  
  MFC after:	3 days
  X-MFC:		not stable/8 before 8.0

Modified:
  head/sys/conf/newvers.sh

Modified: head/sys/conf/newvers.sh
==============================================================================
--- head/sys/conf/newvers.sh	Sat Sep 19 20:36:43 2009	(r197333)
+++ head/sys/conf/newvers.sh	Sat Sep 19 21:46:12 2009	(r197334)
@@ -89,28 +89,47 @@ i=`${MAKE:-make} -V KERN_IDENT`
 
 case "$d" in
 */sys/*)
+	SRCDIR=${d##*obj}
+	if [ -n "$MACHINE" ]; then
+		SRCDIR=${SRCDIR##/$MACHINE}
+	fi
+	SRCDIR=${SRCDIR%%/sys/*}
+
 	for dir in /bin /usr/bin /usr/local/bin; do
-		if [ -x "${dir}/svnversion" ]; then
+		if [ -d "${SRCDIR}/sys/.svn" -a -x "${dir}/svnversion" ] ; then
 			svnversion=${dir}/svnversion
-			SRCDIR=${d##*obj}
-			if [ -n "$MACHINE" ]; then
-				SRCDIR=${SRCDIR##/$MACHINE}
-			fi
-			SRCDIR=${SRCDIR%%/sys/*}
+			break
+		fi
+		if [ -d "${SRCDIR}/.git" -a -x "${dir}/git" ] ; then
+			git_cmd="${dir}/git --git-dir=${SRCDIR}/.git"
 			break
 		fi
 	done
 
-	if [ -n "$svnversion" -a -d "${SRCDIR}/sys/.svn" ] ; then
+	if [ -n "$svnversion" ] ; then
 		svn=" r`cd ${SRCDIR}/sys && $svnversion`"
 	fi
+	if [ -n "$git_cmd" ] ; then
+		git=`$git_cmd rev-parse --verify --short HEAD 2>/dev/null`
+		svn=`$git_cmd svn find-rev $git 2>/dev/null`
+		if [ -n "$svn" ] ; then
+			svn=" r${svn}"
+			git="-${git}"
+		else
+			git=" ${git}"
+		fi
+		if $git_cmd --work-tree=${SRCDIR} diff-index \
+		    --name-only HEAD | read dummy; then
+			git="${git}-dirty"
+		fi
+	fi
 	;;
 esac
 
 cat << EOF > vers.c
 $COPYRIGHT
-#define SCCSSTR "@(#)${VERSION} #${v}${svn}: ${t}"
-#define VERSTR "${VERSION} #${v}${svn}: ${t}\\n    ${u}@${h}:${d}\\n"
+#define SCCSSTR "@(#)${VERSION} #${v}${svn}${git}: ${t}"
+#define VERSTR "${VERSION} #${v}${svn}${git}: ${t}\\n    ${u}@${h}:${d}\\n"
 #define RELSTR "${RELEASE}"
 
 char sccs[sizeof(SCCSSTR) > 128 ? sizeof(SCCSSTR) : 128] = SCCSSTR;