branch名指定でpullするshell function

_gpull.zsh

#compdef gpull
#
# gpull ZSH completion function
#
# Installation
# ------------
# Drop this somewhere in your $fpath (like /usr/share/zsh/site-functions)
# and rename to '_gpull'
#

__git_branch_names () {
  local expl
  declare -a branch_names

  branch_names=(${${(f)"$(_call_program branchrefs git for-each-ref --format='"%(refname)"' refs/heads 2>/dev/null)"}#refs/heads/})
  __git_command_successful || return

  _wanted branch-names expl branch-name compadd $* - $branch_names
}

__git_command_successful () {
  if (( ${#pipestatus:#0} > 0 )); then
    _message 'not a git repository'
    return 1
  fi
  return 0
}

local curcontext="$curcontext" state line
typeset -A opt_args

_arguments ':branch-name:__git_branch_names'

git.sh

gpull() {
  [[ $# -ne 1 ]] && echo 'Required a branch name' >&2 && return
  local branch=$1
  local current=$(git branch -l | grep "*" | cut -d " " -f 2)
  if [ "$branch" = "$current" ]; then
    git pull
  else
    git checkout -q "$branch"
    echo "Switched to branch '$branch'"
    git pull
    git checkout -q "$current"
    echo "Switched to branch '$current'"
  fi
}

gsync() {
  local d_opt='-D'
  local is_confirm=false
  local is_exclude_current=false

  if [ $# -gt 0 ]; then
    # args loop
    for arg in "$@"
    do
      if [ $arg = "--exclude-current-branch" ] || [ $arg = "-e" ]; then
        is_exclude_current=true
        local current=$(git branch --no-color | grep '^\* ' | grep -v 'no branch' | sed 's/^* //g')
      elif [ $arg = "-d" ]; then
        d_opt='-d'
      #elif [ $arg = "-c"] || [ $arg = "--confirm" ]; then
        #is_confirm=true
      fi
    done
  fi

  echo 'fetch from all remote repositories...'
  git fetch --quiet --all || exit 1
  echo 'prune remotes...'
  git remote |xargs git remote prune || exit 1

  local remote_branches=$(git branch -r --no-color |sed 's/^[* ] //' |grep -v 'HEAD' |sed 's/^[^\/]\+\///' \
                         |sed 's/\//\\\//g' |perl -pe 's/\n/\\|/' |sed 's/\\|$//')
  local remove_branches=$(git branch --no-color |sed 's/^[* ] //' |grep -v "^\($remote_branches\)")
  [ $is_exclude_current ] && remove_branches=$(echo $remove_branches |grep -v $current)

  if [ -z $remove_branches ]; then
    echo -n 'no local branches should remove'
  else
    echo "follow branches remove:"
    echo $remove_branches
    echo -n 'remove these branches ok?[y/n] '
    read confirm
    [ ! $is_exclude_current ] && echo 'switch to master' && git checkout -q master
    $(expr "$confirm" : '^[yY]' > /dev/null) && echo $remove_branches |tr '\n' ' ' |git branch $d_opt
  fi
}