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-rwxr-xr-xscripts/getver.sh20
1 files changed, 18 insertions, 2 deletions
diff --git a/scripts/getver.sh b/scripts/getver.sh
index 340ed6862c..a60b91ede1 100755
--- a/scripts/getver.sh
+++ b/scripts/getver.sh
@@ -3,6 +3,8 @@ export LANG=C
export LC_ALL=C
[ -n "$TOPDIR" ] && cd $TOPDIR
+GET_REV=$1
+
try_version() {
[ -f version ] || return 1
REV="$(cat version)"
@@ -11,8 +13,22 @@ try_version() {
try_git() {
git rev-parse --git-dir >/dev/null 2>&1 || return 1
- REV="$(git rev-list reboot..HEAD --count)"
- REV="${REV:+r$REV}"
+
+ [ -n "$GET_REV" ] || GET_REV="HEAD"
+
+ case "$GET_REV" in
+ r*)
+ GET_REV="$(echo $GET_REV | tr -d 'r')"
+ BASE_REV="$(git rev-list reboot..HEAD --count)"
+ REV="$(git rev-parse HEAD~$((BASE_REV - GET_REV)))"
+ ;;
+ *)
+
+ REV="$(git rev-list reboot..$GET_REV --count)"
+ REV="${REV:+r$REV}"
+ ;;
+ esac
+
[ -n "$REV" ]
}