Commit an app's shared assets via svn and git.

commit_assets.sh

#!/bin/bash

#
# Depending on your system (and your user's tendencies to
# upload files with non-ascii characters), you may wish to set the
# default locale language to en_US.UTF-8.
#
# set system-wide on a centos box (with a stock i18n file):
# sed -i -e 's/^#\(LANG="en_US.UTF-8"\)$/\1/' -e 's/^\(LANG="C"\)/#\1/' /etc/sysconfig/i18n
#
# source: https://gist.github.com/859746
# author: Nathan Hyde <nhyde@bigdrift.com>

VERBOSE=true
SVN=/usr/local/bin/svn
GIT=/usr/local/bin/git

function debug() {
  msg=$1
  if  ( ${VERBOSE} ) && [ -n "${msg}" ]; then
    echo ${msg};
  fi
}

function git_or_svn() {
  dir=$1
  if [ -d "${dir}/.svn" ]; then
    echo -n 'svn';
  elif [ -d "${dir}/.git" ]; then
    b=`cd "${dir}" && git config --get svn-remote.svn.url`;
    if [ $? -ne "0" ]; then
      echo -n 'git';
    else
      echo -n 'git-svn';
    fi
  fi
}

function commit_directory_changes() {
  local dir=$1
  local type_of_repo=$(git_or_svn ${dir})

  echo "Working in ${dir}"
  echo "Repository type: ${type_of_repo}"

  if [ 'svn' == "${type_of_repo}" ]; then
    check_svn_repo $dir
  elif [ 'git-svn' == "${type_of_repo}" ]; then
    check_git_svn_repo $dir
  elif [ 'git' == "${type_of_repo}" ]; then
    check_git_repo $dir
  else
    echo 'ERROR: unmatched repository type (or not a repository)'
  fi
}

function check_svn_repo() {
  dir=$1
  result=`$SVN info ${dir}`
  if [ $? -eq 0 ]; then
    status_msg=$(${SVN} status ${dir})
    if [ '' != "$status_msg" ]; then
      result=`echo "${status_msg}" | grep "^\!" | wc -l`
      if [ 0 -lt $result ]; then
        debug '  Removing yanked files.'
        rm_cmd="echo \"${status_msg}\" | grep \"^\!\" | sed -e 's/! *//' | sed -e 's/ /\ /g' | tr \"\n\" \"\0\" | xargs -0 $SVN rm"
        bash -c "$rm_cmd"
      fi
      result=`echo "${status_msg}" | grep "^\?" | wc -l`
      if [ 0 -lt $result ]; then
        debug '  Adding new files.'
        add_cmd="echo \"${status_msg}\" | grep \"^\?\" | sed -e 's/? *//' | sed -e 's/ /\ /g' | tr \"\n\" \"\0\" | xargs -0 $SVN add"
        bash -c "$add_cmd"
      fi
      debug '  Committing changes.'
      bash -c "$SVN commit -m'Cron: Auto-checkin assets.' $dir"
    else
      debug 'No changes required.'
    fi
  else
    debug "$dir is not a repository."
  fi
}

function gitadd() {
  local dir=$1
  local cmd="$GIT ls-files --modified -o --exclude-per-directory=.gitignore"
  cd "${dir}"
  if [ 0 -lt `${cmd} | wc -l` ]; then
    debug '  Adding new files.'
    ${cmd} | xargs git add
  fi
}
function gitrm() {
  local dir=$1
  local cmd="$GIT ls-files --deleted"
  cd "${dir}"
  if [ 0 -lt `${cmd} | wc -l` ]; then
    debug '  Removing yanked files.'
    ${cmd} | xargs git rm
  fi
}
function gitcommit() {
  local dir=$1
  cd "${dir}"
  if [ 0 -lt `$GIT status -s | wc -l` ]; then
    debug '  Committing changes.'
    $GIT commit -m'Cron: Auto-checkin assets.'
  else
    debug 'No changes required.'
  fi
}
function git_commit_changes() {
  local dir=$1
  gitadd ${dir}
  gitrm ${dir}
  gitcommit ${dir}
}

function check_git_svn_repo() {
  local dir=$1

  debug "Using untested check_git_svn_repo method."

  git_commit_changes ${dir}
  $GIT svn rebase
  $GIT svn dcommit
}

function check_git_repo() {
  local dir=$1
  local r=0

  git_commit_changes ${dir}
  cd "${dir}"
  r=`$GIT log origin/master..HEAD | wc -l | awk {'print $1'}`
  if [ $r -ne 0 ]; then
    $GIT push -f --mirror
  fi
}

# from: http://stackoverflow.com/questions/3685970/bash-check-if-an-array-contains-a-value
function containsElement() {
  local e
  for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done
  return 1
}

function commit_vhosts() {
  local skip_dirs=(
    '/var/www/vhosts/example.com'
    '/var/www/vhosts/example.com/subdomains'
  )

  for d in `ls -d /var/www/vhosts/*`; do
    containsElement $d "${skip_dirs[@]}"
    if [ 1 -eq $? ]; then
      dir=$d/deploy/shared/assets
      if [ -d $dir ]; then
        commit_directory_changes $dir
      fi
    fi

    subdomains=$d/subdomains
    containsElement $subdomains "${skip_dirs[@]}"
    if [ 1 -eq $? ]; then
      if [ -d $subdomains ]; then
        for sub in `ls ${subdomains}`; do
          dir=${subdomains}/$sub/deploy/shared/assets
          if [ -d $dir ]; then
            commit_directory_changes $dir
          fi
        done
      fi
    fi
  done
}

commit_vhosts

exit 0

# CHANGE HISTORY
#
# 27dec12
#
# * Add ability to ignore certain directories
# * Only push with git when there are unpushed changes
#
# 21dec12
#
# * Add functions for git and git_svn
# * Add notes and updates present in gist
# * Add similar output to svn when working with git repos
# * Test if add/rm/ci is necessary before running in git repos
#
# 23mar11
#
# * Correct usage of ${status_msg} for pattern matching.
# * Verify grep found results before attempting the hand-off to xargs/svn.
#
# 21mar11
#
# * Added note about setting default locale
# * Removed ineffective LC_CTYPE from add and rm commands.
#
# 15mar11
#
# * Now check subdomain directories, too.
# * Refactored into check_svn_repo function
# * Use debug function to print status messages
# * Added setting LC_CTYPE to utf-8 when running commands (to permit svn to ci utf-8 file names)