changeLanguage

#!/usr/bin/env bash
# Copyright (c) 2012 Jonathan Penn (http://cocoamanifest.net/)

# 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.

# Tell bash that we want the whole script to fail if any part fails.
set -e

function main {
  if [[ -z $1 ]]; then
    # If there are no arguments for this command, then print the current
    # language of the first simulator it finds
    echo $(_print_current_languages | head -1)
  else
    # Otherwise, change the language of every simulator SDK
    _close_sim
    _change_language $1
  fi
}

# Grab the global pref file for every simulator version in a string
pref_files=$(ls ~/Library/Application\ Support/iPhone\ Simulator/[0-9]*/Library/Preferences/.GlobalPreferences.plist)

# Set the string split delimiter to a newline for the 'for..in'
IFS="
"

function _change_language {
  # Alters the global preference file for every simulator type and moves the
  # chosen language identifier to the top.

  echo "Localizing for $1"

  for file in $pref_files; do
    # Disable errors temporarily just in case the prefs don't have the key
    # we're trying to delete. This could happen when experimenting and leaving
    # the prefs file in an inconsistent state. If anything goes horribly wrong,
    # just reset the simulator and everything will be fine.
    set +e
    _plistbuddy "$file" -c "Delete :AppleLanguages"
    _plistbuddy "$file" -c "Delete :AppleLocale"
    set -e

    # Create the language array with just the given language
    _plistbuddy "$file" \
      -c "Add :AppleLanguages array" \
      -c "Add :AppleLanguages:0 string '$1'" \
      -c "Add :AppleLocale string '$1'"
  done
}

function _print_current_languages {
  for file in $pref_files; do
    _plistbuddy "$file" -c "Print :AppleLanguages:0"
  done
}

function _plistbuddy {
  /usr/libexec/PlistBuddy $*
}

function _close_sim {
  osascript -e 'tell application "iPhone Simulator" to quit'
}

main $*