+try_git() {
+ REBOOT=ee53a240ac902dc83209008a2671e7fdcf55957a
+ git rev-parse --git-dir >/dev/null 2>&1 || return 1
+
+ [ -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 | awk '{print $1}')"
+ REV="$(git rev-parse HEAD~$((BASE_REV - GET_REV)))"
+ ;;
+ *)
+ BRANCH="$(git rev-parse --abbrev-ref HEAD)"
+ ORIGIN="$(git rev-parse --verify --symbolic-full-name ${BRANCH}@{u} 2>/dev/null)"
+ [ -n "$ORIGIN" ] || ORIGIN="$(git rev-parse --verify --symbolic-full-name master@{u} 2>/dev/null)"
+ REV="$(git rev-list ${REBOOT}..$GET_REV | wc -l | awk '{print $1}')"
+
+ if [ -n "$ORIGIN" ]; then
+ UPSTREAM_BASE="$(git merge-base $GET_REV $ORIGIN)"
+ UPSTREAM_REV="$(git rev-list ${REBOOT}..$UPSTREAM_BASE | wc -l | awk '{print $1}')"
+ else
+ UPSTREAM_REV=0
+ fi
+
+ if [ "$REV" -gt "$UPSTREAM_REV" ]; then
+ REV="${UPSTREAM_REV}+$((REV - UPSTREAM_REV))"
+ fi
+
+ REV="${REV:+r$REV-$(git log -n 1 --format="%h" $UPSTREAM_BASE)}"
+
+ ;;
+ esac
+