[dpdk-dev] [PATCH v3 2/2] devtools: fix patches missing if range newer than HEAD

[Xueming Li]

Current fix scan scripts used HEAD branch as history reference.
When users ran it in an earlier branch, few patches were scanned
due to the fixes in the range are newer and not merged to current
branch.

This patch introduces optional <branch> argument, default to HEAD
if not specified. Checks the <range> specified in parameter must
being merged in <branch>.

Fixes: 752d8e097ec1 ("scripts: show fixes with release version of bug")
Cc: Thomas Monjalon <thomas at monjalon.net>
Cc: stable at dpdk.org
Cc: Christian Ehrhardt <christian.ehrhardt at canonical.com>

Signed-off-by: Xueming Li <xuemingl at nvidia.com>
---
 devtools/git-log-fixes.sh | 26 +++++++++++++++++++-------
 1 file changed, 19 insertions(+), 7 deletions(-)

diff --git a/devtools/git-log-fixes.sh b/devtools/git-log-fixes.sh
index 153ba5b438..dbed4b6419 100755
--- a/devtools/git-log-fixes.sh
+++ b/devtools/git-log-fixes.sh
@@ -4,7 +4,7 @@
 
 print_usage ()
 {
-	echo "usage: $(basename $0) [-h] <git_range>"
+	echo "usage: $(basename $0) [-h] <git_range> [<branch>]"
 }
 
 print_help ()
@@ -15,6 +15,7 @@ print_help ()
 	Find fixes to backport on previous versions.
 	It looks for the word "fix" in the headline or a tag "Fixes" or "Reverts".
 	The oldest bug origin is printed as well as partially fixed versions.
+	It looks into current branch or the branch specified.
 	END_OF_HELP
 }
 
@@ -33,14 +34,23 @@ while getopts h ARG ; do
 done
 shift $(($OPTIND - 1))
 [ $# -ge 1 ] || usage_error 'range argument required'
-range="$*"
+range="$1"
+branch="$2"
+
+# default to current branch as history reference
+[ -n "$branch" ] || branch="HEAD"
+# get real brnach name
+refbranch=$(git rev-parse --abbrev-ref $branch)
+range_last=$(git rev-parse $range | head -n1)
+if ! git branch -a --contains $range_last | grep -q -e " $refbranch$" -e " remotes/$refbranch$"; then
+	echo "range $range not included by branch $refbranch"
+	exit 1
+fi
 
 # get major release version of a commit
 commit_version () # <hash>
 {
 	local VER="v*.*"
-	# use current branch as history reference
-	local refbranch=$(git rev-parse --abbrev-ref HEAD)
 	local tag=$( (git tag -l "$VER" --contains $1 --sort=creatordate --merged $refbranch 2>&- ||
 		# tag --merged option has been introduced in git 2.7.0
 		# below is a fallback in case of old git version
@@ -49,9 +59,11 @@ commit_version () # <hash>
 			sed "s,.\+,$t,"
 		done) |
 		head -n1)
-	if [ -z "$tag" ] ; then
-		# before -rc1 tag of release in progress
-		cat VERSION | cut -d'.' -f-2
+	if [ -z "$tag" ]; then
+		if [ "$branch" = 'HEAD' ]; then
+			# before -rc1 tag of release in progress
+			cat VERSION | cut -d'.' -f-2
+		fi
 	else
 		echo $tag | sed 's,^v,,' | sed 's,-rc.*,,'
 	fi
-- 
2.25.1