1  #!/bin/sh
 2  
 3  set -e # bail on errors
 4  
 5  CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
 6  REMOTE="${1:-$(git config --get branch.${CURRENT_BRANCH}.remote)}"
 7  BRANCH="${2:-$CURRENT_BRANCH}"
 8  REPO=$(git config --get remote.${REMOTE}.url | cut -d':' -f2 | cut -d'.' -f1)
 9  if [[ -z "$REPO" ]] || [[ -z "$BRANCH" ]]; then
10    echo "usage: $(basename "$0") <remote> <branch (ref)>"
11    exit 1
12  fi
13  open "https://github.com/${REPO}/compare/${BRANCH}?expand=1"