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MarlinFirmware/buildroot/share/git/mfup
2019-01-23 23:10:32 -06:00

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#!/usr/bin/env bash
#
# mfup
#
# - Fetch latest upstream and replace the PR Target branch with
# - Rebase the (current or specified) branch on the PR Target
# - Force-push the branch to 'origin'
#
[[ $# < 3 && $1 != "-h" && $1 != "--help" ]] || { echo "usage: `basename $0` [1|2] [branch]" 1>&2 ; exit 1; }
MFINFO=$(mfinfo "$@") || exit 1
IFS=' ' read -a INFO <<< "$MFINFO"
ORG=${INFO[0]}
FORK=${INFO[1]}
REPO=${INFO[2]}
TARG=${INFO[3]}
BRANCH=${INFO[4]}
CURR=${INFO[5]}
set -e
# Prevent accidental loss of current changes
[[ $(git stash) != "No local "* ]] && HAS_STASH=1
echo "Fetching upstream ($ORG/$REPO)..."
git fetch upstream
if [[ $BRANCH != $TARG ]]; then
echo ; echo "Rebasing $BRANCH on $TARG..."
if [[ $BRANCH == $CURR ]] || git checkout $BRANCH; then
if git rebase upstream/$TARG; then
git push -f
else
echo "Looks like merge conflicts. Stopping here."
exit
fi
else
echo "No such branch!"
fi
else
git reset --hard upstream/$TARG
fi
echo
[[ $BRANCH != $CURR ]] && git checkout $CURR
[[ $HAS_STASH == 1 ]] && git stash pop