export LC_ALL=C
[ -n "$TOPDIR" ] && cd $TOPDIR
+GET_REV=$1
+
try_version() {
[ -f version ] || return 1
REV="$(cat version)"
try_git() {
git rev-parse --git-dir >/dev/null 2>&1 || return 1
- REV="$(git describe --match reboot | sed "s/reboot-\([0-9]*\)-.*/\1/g")"
+
+ [ -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 | wc -l)"
+ REV="$(git rev-parse HEAD~$((BASE_REV - GET_REV)))"
+ ;;
+ *)
+ UPSTREAM_BASE="$(git merge-base $GET_REV origin/master)"
+ UPSTREAM_REV="$(git rev-list reboot..$UPSTREAM_BASE | wc -l)"
+ REV="$(git rev-list reboot..$GET_REV | wc -l)"
+ if [ -n "$REV" -a -n "$UPSTREAM_REV" -a "$REV" -gt "$UPSTREAM_REV" ]; then
+ REV="r${UPSTREAM_REV}+$((REV - UPSTREAM_REV))"
+ else
+ REV="${REV:+r$REV}"
+ fi
+ ;;
+ esac
+
[ -n "$REV" ]
}
try_hg() {
[ -d .hg ] || return 1
REV="$(hg log -r-1 --template '{desc}' | awk '{print $2}' | sed 's/\].*//')"
- REV="${REV:+$REV}"
+ REV="${REV:+r$REV}"
[ -n "$REV" ]
}