git-ignore() {
  local site="https://raw.githubusercontent.com/github/gitignore/master"
  if [[ $1 == "--global" ]]; then
    shift
    ignore_file=${HOME}/.gitignore_global
    site+="/Global"
  else
    ignore_file="./.gitignore"
  fi
  echo "## ${1}.gitignore" >> "${ignore_file}"
  wget -qO- "${site}/${1}.gitignore" >> "${ignore_file}"
}

git-inject-clang-format() {
  local fromdir todir
  fromdir=${HOME}/.dotfiles/resources
  todir=.git/hooks
  mkdir -p "${todir}/pre-commit.d"
  git config hooks.clangformat.style file
  cp ${fromdir}/clang-format.template ./.clang-format
  cp ${fromdir}/pre-commit-all.hook ${todir}/pre-commit
  cp ${fromdir}/clang-format.hook ${todir}/pre-commit.d/clang-format
}

git-create() {
  mkcd "${1}"; shift
  git init
  echo '## User Defined Gitignore' > .gitignore
  local message="Initializing repository"
  if [[ $# -ge 1 ]]; then
    for i in "$@"; do git-ignore "${i}"; done
    message+=" with ignore lists: [ $1"
    [[ $# -eq 1 ]] || message+="$(printf ", %s" "${@:2}")"
    message+=" ]"
  fi
  maybe_do git-ignore-local
  git add .gitignore
  git commit -m "${message}"
}

git-sync-release() {
  rel="release/${1}"
  br="$(git branch | grep '^\*' | cut -c3-)"

  # Confirm that this is a real branch
  (git branch -r | grep "${rel}" &>/dev/null) || return 1

  # Merge dev
  # Make sure that we're not doing a weird clobber
  git checkout "${rel}" || return 2
  # Sanity check...
  git pull
  git merge --ff-only origin/dev || return 3

  # Update origin:release
  git push
  git checkout "${br}"

  # Don't delete if we're on this branch
  [[ "${br}" == "${rel}" ]] || git branch -D "${rel}"
}

alias git-graph="git log --graph --pretty=oneline --abbrev-commit --decorate --all"
alias git-history-graph="git log --graph --pretty='format:%C(auto)%h (%<(50,trunc)%s, %ad)%d' --abbrev-commit --decorate --all"

git-weeks-ago() {
  weeks="${1:-1}"
  end="$(date +"%Y-%m-%d" --date="${weeks} weeks ago Sunday")"
  begin="$(date +"%Y-%m-%d" --date="$((weeks+1)) weeks ago Sunday")"
  echo "--after ${begin} --before ${end}"
}

alias git-cleanup='(git branch --merged | egrep -v "(^\*|^\+|master|dev)" | xargs git branch -d); (git fetch --prune 2>&1 | grep deleted | sed "s/.*-> origin\///" | xargs git branch -D)'