manager

#!/bin/bash
# Copyright (c) 2012 Michael-Keith Bernard
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

# Fail fast
set -e

# General directory settings
CURRENT=`pwd`
BUNDLE="$CURRENT/bundle"

DATE=$(date +%d%m%Y)
GIT_REPO="git://github.com/SegFaultAX/vim-dotfiles.git"
GIT_BRANCH="segfaultax-$DATE"
GIT_FETCH_SPEC="+refs/heads/master:refs/heads/$GIT_BRANCH"

function usage() {
  echo "Usage: $0"
  echo "  --help - this help menu"
  echo "  --fetch-vimrc - download maintainers repo"
  echo "  --create-symlink - symlink $CURRENT/vimrc to ~/.vimrc"
  echo "  --update-submodules - fetch newest submodule versions"
  echo "  --clean-branches - remove all maintainer repo branches"
  echo
  echo "  --init - initialize submodules"
  echo "  --init-submodules - initialize submodules"
  echo
}

function init_submodules() {
  # Fetch all the submodules if we're in the root directory
  if [ -d $CURRENT/.git ]; then
    echo "Running git-submodule commands..."
    git submodule update --init --recursive
  else
    echo "Run this command from the root of the project."
    exit 1
  fi
}

function update_submodules() {
  if [ -d $CURRENT/.git ]; then
    echo "Updating all submodules..."
    init_submodules
    git submodule foreach git pull origin master
  fi
}

function create_symlink() {
  echo "Creating symlink for vimrc."
  VIMRC=$HOME/.vimrc
  if [ -e "$VIMRC" ]; then
    TIMESTAMP=$(date +%s)
    BACKUP="$VIMRC.old.$TIMESTAMP"

    echo "Backing up old $VIMRC to $BACKUP"
    mv $VIMRC $BACKUP
  fi
  ln -s $CURRENT/vimrc $VIMRC
}

function fetch_vimrc() {
  echo "Fetching maintainer version to $GIT_BRANCH"
  git fetch $GIT_REPO $GIT_FETCH_SPEC
  echo
  echo "You can now run 'git merge $GIT_BRANCH' from master"
  echo "You may also want to run 'git submodule init && git submodule update'"
  echo "You can remove the branch with 'git branch -D $GIT_BRANCH'"
}

function clean_branches() {
  echo "Cleaning up branches that match refs/heads/segfaultax-*"
  git for-each-ref --format="%(refname:short)" refs/heads/segfaultax-\* | \
    xargs git branch -D
}

echo "Manager by Michael-Keith Bernard"

# Section configuration
vimrc=
symlink=
submodules=
clean=

init_submodules=

if [ "$#" -eq 0 ]; then usage; fi

while [ "$#" -gt 0 ]; do
  opt="$1"
  shift
  case "$opt" in
    --help) usage; exit;;
    --fetch-vimrc) vimrc="yes";;
    --create-symlink) symlink="yes";;
    --update-submodules) submodules="yes";;
    --clean-branches) clean="yes";;

    --init) init_submodules="yes";;
    --init-submodules) init_submodules="yes";;
    *) echo "Unknown option $opt"; exit 1;;
  esac
done

if [ "$vimrc" = "yes" ]; then fetch_vimrc; fi
if [ "$symlink" = "yes" ]; then create_symlink; fi
if [ "$submodules" = "yes" ]; then update_submodules; fi
if [ "$clean" = "yes" ]; then clean_branches; fi

if [ "$init_submodules" = "yes" ]; then init_submodules; fi