Shell script to sync remote branches from upstream and push them up to forked origin

git-sync-fork

#!/bin/sh

UPSTREAM=$1
MYREPO=$2

usage() {
  echo "Usage:"
  echo "$0 <upstream-remote> <target-remote>"
  echo ""
  echo "Example which ensures remote named 'origin' have all the same branches and tags as 'upstream'"
  echo "$0 upstream origin"
  exit 1
}

if [ -z "$UPSTREAM" ]
then
  echo "Missing upstream remote name."
  usage
fi

if [ -z "$MYREPO" ]
then
  echo "Missing target remote name."
  usage
fi

read -p "1. This will setup '$MYREPO' to track all branches in '$UPSTREAM' - Are you sure ?" -n 1 -r

if [[ $REPLY =~ ^[Yy]$ ]]
then
  echo "\n"
  for brname in `git branch -r | grep "$UPSTREAM" | grep -v master | grep -v HEAD | sed -e 's/.*\///g'`; do git branch --track $brname  $UPSTREAM/$brname ; done
fi

read -p "2. This will push all local branches and tags into '$MYREPO' - Are you sure ?" -n 1 -r

if [[ $REPLY =~ ^[Yy]$ ]]
then
  echo "\n"
  git push --all $MYREPO
  git push --tags $MYREPO
fi

INSTALL.txt

1. Copy 'git-sync-fork' script code from gist
2. Create a file called 'git-sync-fork' in any 'bin' directory in your $PATH
3. Paste script into this new file 'git-sync-fork' and save
4. Make the file executable `chmod +x git-sync-fork`
5. Run the script inside your locally forked git repo

Example:

git-sync-fork upstream origin

Adding git fetch $UPSTREAM would be helpful

I wrapped this gist (git-sync-fork) in a function. The to prevent the shell from exiting ... when no params are given:

sync_upstream() {

...

  usage() {
    echo "Usage:"
    echo "$0 <upstream-remote> <target-remote>"
    echo ""
    echo "Example which ensures remote named 'origin' have all the same branches and tags as 'upstream'"
    echo "$0 upstream origin"
-   exit 1
+   kill -INT $$
  }

...

}