minihub: a small shell wrapper for working with github

minihub

#!/bin/sh

## Usage:
# minihub checkout|fetch|pull|push username branchname
#   Fetch and checkout, fetch, pull, push, or checkout a user's branch, if you
#   have access
# minihub pull-request|pr username basebranch title [message]
#   Submit a pull request for the current HEAD to the user's base branch. If
#   successful, it will print out the URL of the new PR.
#
# All of these commands assume that the repository name can be found in the
# .git/description file. The username and login are set just a little ways
# below. Git and curl will prompt for your password as needed.

set -e

login="john_doe@example.com"
username="johndoe"

git_root=$(git rev-parse --show-toplevel )
repo_name=$(cat ${git_root}/.git/description)

case $1 in
  fetch|pull|push)
    git $1 git@github.com:$2/${repo_name}.git $3
    ;;
  checkout)
    git fetch git@github.com:$2/${repo_name}.git $3
    git checkout FETCH_HEAD
    ;;
  pull-request|pr)
    # You can only open pull requests for commits that have been pushed,
    # ie, you can't be in a detached head state
    head=$(cat ${git_root}/.git/HEAD | sed -e 's|ref: refs/heads/||')
    cat <<JSON |
    {
      "title": "$4",
      "body": "$5",
      "base": "$3",
      "head": "${username}:${head}"
    }
JSON
    curl -sS  -u ${login} -X POST https://api.github.com/repos/$2/${repo_name}/pulls -d @- |\
      grep html_url |\
      head -1 |\
      sed -e 's/.*: "\(.*\)",/\1/'
    ;;
  *)
    echo "I don't know how to $1"
    ;;
esac
exit $?