fix(git-vc): allow setting BEFORE commit directly

If the last Version: in the SPEC file is not a formatted tag,
this allows to specify the previous commit ID on the command line
as an argument.

1 files changed, 7 insertions, 3 deletions

diff --git a/git-vc b/git-vc
index 5876236..e75f10a 100755
--- a/git-vc
+++ b/git-vc
@@ -4,13 +4,17 @@ set -eu
 EDITOR=${EDITOR:-vi}
 REPO="$(basename "$(readlink -f .)")"
 
-BEFORE=$(git diff --color=never|awk -F. '/^-Version/ {print $NF}')
+if [ "$#" -gt 0 ] ; then
+    BEFORE="$1"
+else
+    BEFORE=$(git diff --color=never|awk -F. '/^-Version/ {print $NF}')
+fi
 AFTER=$(git diff --color=never|awk -F. '/^+Version/ {print $NF}')
 
-[ -z "$BEFORE" -o -z "$AFTER" ] && exit 0
+[ -z "$BEFORE" ] || [ "$AFTER" ] && exit 0
 
 cd "$REPO"
 CHGLOG="$(git log --pretty='format:  - %s' "$BEFORE..$AFTER")"
 cd ..
 osc vc -m "Update from $BEFORE to $AFTER:\n$CHGLOG"
-$EDITOR *.changes
+$EDITOR ./*.changes