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dotfiles/.bin/git-ffwd-update

36 lines
1.2 KiB
Bash
Executable File

#!/bin/bash
# src: https://stackoverflow.com/a/9076361
main() {
REMOTES="$@";
if [ -z "$REMOTES" ]; then
REMOTES=$(git remote);
fi
REMOTES=$(echo "$REMOTES" | xargs -n1 echo)
CLB=$(git rev-parse --abbrev-ref HEAD);
echo "$REMOTES" | while read REMOTE; do
git remote update $REMOTE
git remote show $REMOTE -n \
| awk '/merges with remote/{print $5" "$1}' \
| while read RB LB; do
ARB="refs/remotes/$REMOTE/$RB";
ALB="refs/heads/$LB";
NBEHIND=$(( $(git rev-list --count $ALB..$ARB 2>/dev/null) +0));
NAHEAD=$(( $(git rev-list --count $ARB..$ALB 2>/dev/null) +0));
if [ "$NBEHIND" -gt 0 ]; then
if [ "$NAHEAD" -gt 0 ]; then
echo " branch $LB is $NBEHIND commit(s) behind and $NAHEAD commit(s) ahead of $REMOTE/$RB. could not be fast-forwarded";
elif [ "$LB" = "$CLB" ]; then
echo " branch $LB was $NBEHIND commit(s) behind of $REMOTE/$RB. fast-forward merge";
git merge -q $ARB;
else
echo " branch $LB was $NBEHIND commit(s) behind of $REMOTE/$RB. resetting local branch to remote";
git branch -f $LB -t $ARB >/dev/null;
fi
fi
done
done
}
main $@