git: 079273384c22 - stable/12 - Fix newvers.sh to no longer print an outdated SVN rev

[Li-Wen Hsu]

The branch stable/12 has been updated by lwhsu:

URL: https://cgit.FreeBSD.org/src/commit/?id=079273384c22961b15d520c172645ba626af1db1

commit 079273384c22961b15d520c172645ba626af1db1
Author:     Ulrich Spörlein <uqs at FreeBSD.org>
AuthorDate: 2020-12-23 21:29:34 +0000
Commit:     Li-Wen Hsu <lwhsu at FreeBSD.org>
CommitDate: 2021-01-12 08:19:43 +0000

    Fix newvers.sh to no longer print an outdated SVN rev
    
    We have stopped using SVN, so the notes containing the old SVN revisions
    are no longer populated, so fall back to purely counting the number of
    commits (currently at about 255337).
    
    Also turn the format more into what git-describe produces, with a name
    first, then the number of commits and the hash last. Note that as we
    don't tag anything on `main`, git describe will never produce something
    useful there and finds the newest vendor tag that was merged in instead.
    
    Sample output:
    FreeBSD 13.0-CURRENT #6 main-c255126-gb81783dc98e6-dirty
    FreeBSD 12.2-STABLE #0 stable/12-c243035-gd16dac42b641-dirty
    
    MFC after:      3 weeks
    Reviewed by:    imp, glebius
    Differential Revision:  https://reviews.freebsd.org/D27751
    
    (cherry picked from commit 8d405efd73d3991fe1647f91a2b7c9989dd5f18f)
---
 sys/conf/newvers.sh | 31 ++++++-------------------------
 1 file changed, 6 insertions(+), 25 deletions(-)

diff --git a/sys/conf/newvers.sh b/sys/conf/newvers.sh
index 4b5651fdd4bf..48f778ed1223 100644
--- a/sys/conf/newvers.sh
+++ b/sys/conf/newvers.sh
@@ -210,40 +210,21 @@ if [ -n "$svnversion" ] ; then
 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
-		svn=`$git_cmd log --grep '^git-svn-id:' | \
-		    grep '^    git-svn-id:' | head -1 | \
-		    sed -n 's/^.*@\([0-9][0-9]*\).*$/\1/p'`
-		if [ -z "$svn" ] ; then
-			svn=`$git_cmd log --format='format:%N' | \
-			     grep '^svn ' | head -1 | \
-			     sed -n 's/^.*revision=\([0-9][0-9]*\).*$/\1/p'`
-		fi
-		if [ -n "$svn" ] ; then
-			svn=" r${svn}"
-			git="+${git}"
-		else
-			git=" ${git}"
-		fi
-	fi
+	git=$($git_cmd rev-parse --verify --short HEAD 2>/dev/null)
 	git_cnt=$($git_cmd rev-list --count HEAD 2>/dev/null)
 	if [ -n "$git_cnt" ] ; then
-		git="${git}-c${git_cnt}"
+		git="c${git_cnt}-g${git}"
 	fi
-	git_b=`$git_cmd rev-parse --abbrev-ref HEAD`
-	if [ -n "$git_b" ] ; then
-		git="${git}(${git_b})"
+	git_b=$($git_cmd rev-parse --abbrev-ref HEAD)
+	if [ -n "$git_b" -a "$git_b" != "HEAD" ] ; then
+		git="${git_b}-${git}"
 	fi
 	if $git_cmd --work-tree=${VCSTOP} diff-index \
 	    --name-only HEAD | read dummy; then
 		git="${git}-dirty"
 		modified=true
 	fi
+	git=" ${git}"
 fi
 
 if [ -n "$p4_cmd" ] ; then