Script to make all your Xcode plugins “compatible” with currently selected version of Xcode.

xcode-plugin-update.sh

#!/bin/sh

PLIST_BUDDY=/usr/libexec/PlistBuddy

xcode-plugin-add-compatibility() {
  "$PLIST_BUDDY" -c "Add DVTPlugInCompatibilityUUIDs:10 string $2" \
    "$1/Contents/Info.plist"
}

xcode-plugin-has-compatibility() {
  $PLIST_BUDDY -c 'Print DVTPlugInCompatibilityUUIDs' \
    "$1/Contents/Info.plist"|grep -q "$2"
  return $?
}

xcode-plugin-update() {
  # Save original path to restore it after script is done.
  ORIGINAL_PATH="$PWD"
  
  # Read the compatibility ID from the currently selected version of Xcode.
  XCODE_INFO_PLIST="$(xcode-select -p)"/../Info.plist
  ID=$("$PLIST_BUDDY" -c 'Print DVTPlugInCompatibilityUUID' "$XCODE_INFO_PLIST")
  
  # Get human readable version info from Xcode for logging.
  XCODE_VERSION_PLIST="$(xcode-select -p)"/../version.plist
  XCODE_VERSION=$(printf '%s (%s)' $("$PLIST_BUDDY" -c 'Print CFBundleShortVersionString' "$XCODE_VERSION_PLIST") $("$PLIST_BUDDY" -c 'Print ProductBuildVersion' "$XCODE_VERSION_PLIST"))

  # Go to plugin directory.
  cd "$HOME/Library/Application Support/Developer/Shared/Xcode/Plug-ins"

  # Update code is taken from this script: https://gist.github.com/neonichu/9487584.
  for file in `ls -d *`
  do
    if `xcode-plugin-has-compatibility "$file" $ID` 
    then
      true
    else
      echo "Plugin $file is now compatible with Xcode $XCODE_VERSION"
      xcode-plugin-add-compatibility "$file" $ID
    fi
  done
  
  # Restore original path.
  cd "$ORIGINAL_PATH"
}