Marlin_Firmware/buildroot/share/git/mfup

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#!/usr/bin/env bash
#
# mfup
#
# Fetch and merge upstream changes, optionally with a branch
#
MFINFO=$(mfinfo) || exit
IFS=' ' read -a INFO <<< "$MFINFO"
ORG=${INFO[0]}
FORK=${INFO[1]}
REPO=${INFO[2]}
TARG=${INFO[3]}
OLDBRANCH=${INFO[4]}
case "$#" in
0 ) BRANCH=$OLDBRANCH ;;
1 ) BRANCH=$1 ;;
* ) echo "Usage: `basename $0` [branch]" 1>&2 ; exit 1 ;;
esac
set -e
echo "Fetching upstream ($ORG/$REPO)..."
git fetch upstream
echo ; echo "Bringing $TARG up to date..."
git checkout -q $TARG || git branch checkout upstream/$TARG -b $TARG && git push --set-upstream origin $TARG
git merge upstream/$TARG
git push origin
if [[ $BRANCH != $TARG ]]; then
echo ; echo "Rebasing $BRANCH on $TARG..."
if git checkout $BRANCH; then
echo
if git rebase $TARG; then
git push -f ; echo
[[ $BRANCH != $OLDBRANCH ]] && git checkout $OLDBRANCH
else
echo "Looks like merge conflicts. Stopping here."
fi
else
echo "No such branch!" ; echo
git checkout $OLDBRANCH
fi
fi