#!/bin/bash

# Copyright (c) 2009 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

set -e

# Pull off the optional args
USE_BREAKPAD=0
USE_KEYSTONE=0
USE_SVN=1
OPTERR=0
while getopts ":b:k:s:" an_opt ; do
  case $an_opt in
    b)
      USE_BREAKPAD=$OPTARG
      ;;
    k)
      USE_KEYSTONE=$OPTARG
      ;;
    s)
      USE_SVN=$OPTARG
      ;;
    \?)
      echo "Unknown option $OPTARG"
      exit 1
      ;;
    :)
      echo "Option $OPTARG missing it's value"
      exit 1
      ;;
    *)
      echo "Not recognized argument $an_opt"
      exit 1
      ;;
  esac
done
shift $(($OPTIND - 1))

# Make sure the branding argument was supplied.
if [ $# -ne 1 ]; then
  echo "error: missing branding as an argument" >&2
  exit 1
fi

#
# Xcode supports build variable substitutions and CPP; sadly, that doesn't work
# because:
#
# 1. Xcode wants to do the Info.plist work before it runs any build phases,
#    this means if we were to generate a .h file for INFOPLIST_PREFIX_HEADER
#    we'd have to put it in another target so it runs in time.
# 2. Xcode also doesn't check to see if the header being used as a prefix for
#    the Info.plist has changed.  So even if we updated it, it's only looking
#    at the modtime of the info.plist to see if that's changed.
#
# So, we work around all of this by making a script build phase that will run
# during the app build, and simply update the info.plist in place.  This way
# by the time the app target is done, the info.plist is correct.
#

TOP="${SRCROOT}/.."
BUILD_BRANDING=$1

set -x

if [ "${USE_SVN}" = "1" ] ; then
  # Visible in the about:version page.
  SVN_INFO=$(svn info "${TOP}" 2>/dev/null || true)
  SVN_REVISION=$(echo "${SVN_INFO}" | sed -Ene 's/^Revision: (.*)$/\1/p')
  if [ -z "${SVN_REVISION}" ] ; then
    GIT_INFO=$(git log -1 --grep=git-svn-id --format=%b 2>/dev/null || true)
    SVN_REVISION=$(echo "${GIT_INFO}" | \
                   sed -Ene 's/^git-svn-id: .*@([0-9]+).*$/\1/p')
    # Finding the revision for git and svn has failed.
    if [ -z "${SVN_REVISION}" ] ; then
      echo "Could not determine svn revision.  This may be OK." >&2
    else
      SVN_PATH=$(echo "${GIT_INFO}" | \
                 sed -Ene 's%^git-svn-id: .*/chrome/(.*)@.*$%/\1%p')
    fi
  else
    # Grab the path to the source root in the Subversion repository by taking
    # the URL to the source root directory and the repository root, and
    # removing the latter from the former.  This ensures that SVN_PATH will
    # contain a useful path regardless of the Subversion server, mirror, and
    # authentication scheme in use.
    SVN_URL=$(echo "${SVN_INFO}" | sed -Ene 's/^URL: (.*)$/\1/p')
    SVN_ROOT=$(echo "${SVN_INFO}" | sed -Ene 's/^Repository Root: (.*)$/\1/p')
    if [ -n "${SVN_ROOT}" ] && \
       [ "${SVN_URL:0:${#SVN_ROOT}}" = "${SVN_ROOT}" ] ; then
      SVN_PATH="${SVN_URL:${#SVN_ROOT}}"
    fi
  fi
fi

# Pull in the Chrome version number.
. "${TOP}/chrome/VERSION"
FULL_VERSION="${MAJOR}.${MINOR}.${BUILD}.${PATCH}"

# I really hate how "defaults" doesn't take a real pathname but instead insists
# on appending ".plist" to everything.
TMP_INFO_PLIST_DEFAULTS="${TEMP_DIR}/Info"
TMP_INFO_PLIST="${TMP_INFO_PLIST_DEFAULTS}.plist"
cp "${TARGET_BUILD_DIR}/${INFOPLIST_PATH}" "${TMP_INFO_PLIST}"

# Save off the Subversion revision number and source root path in case they're
# needed.
if [ ! -z "${SVN_REVISION}" ] ; then
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" \
      SVNRevision -string "${SVN_REVISION}"
else
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" SVNRevision || true
fi
if [ ! -z "${SVN_PATH}" ] ; then
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" SVNPath -string "${SVN_PATH}"
else
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" SVNPath || true
fi

# Add public version info so "Get Info" works
defaults write "${TMP_INFO_PLIST_DEFAULTS}" \
    CFBundleShortVersionString -string "${FULL_VERSION}"
# Honor the 429496.72.95 limit.  The maximum comes from splitting 2^32 - 1 into
# 6, 2, 2 digits.  The limitation was present in Tiger, but it could have been
# fixed in later OS release, but hasn't been tested (it's easy enough to find
# out with "lsregister -dump).
# http://lists.apple.com/archives/carbon-dev/2006/Jun/msg00139.html
# BUILD will always be an increasing value, so BUILD_PATH gives us something
# unique that meetings what LS wants.
defaults write "${TMP_INFO_PLIST_DEFAULTS}" \
    CFBundleVersion -string "${BUILD}.${PATCH}"

# Add or remove the Breakpad keys.
if [ "${USE_BREAKPAD}" = "1" ] ; then
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" \
      BreakpadURL "https://clients2.google.com/cr/report"
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" BreakpadReportInterval "3600"
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" \
      BreakpadProduct "${BUILD_BRANDING}_Mac"
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" \
      BreakpadProductDisplay "${BUILD_BRANDING}"
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" \
      BreakpadVersion -string "${FULL_VERSION}"
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" BreakpadSendAndExit "YES"
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" BreakpadSkipConfirm "YES"
else
  # Make sure the keys aren't there, || true to avoid errors if they aren't.
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" BreakpadURL || true
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" BreakpadReportInterval || true
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" BreakpadProduct || true
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" BreakpadProductDisplay || true
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" BreakpadVersion || true
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" BreakpadSendAndExit || true
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" BreakpadSkipConfirm || true
fi

# Add or remove the Keystone keys (only supported in release builds).
if [ "${USE_KEYSTONE}" = "1" ] && [ "${CONFIGURATION}" = "Release" ] ; then
  KEYSTONE_URL="https://tools.google.com/service/update2"
  KEYSTONE_APP_ID=$(defaults read "${TMP_INFO_PLIST_DEFAULTS}" \
                                                            CFBundleIdentifier)
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" \
      KSVersion -string "${FULL_VERSION}"
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" KSProductID "${KEYSTONE_APP_ID}"
  defaults write "${TMP_INFO_PLIST_DEFAULTS}" KSUpdateURL "${KEYSTONE_URL}"
else
  # Make sure the keys aren't there, || true to avoid errors if they aren't.
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" KSVersion || true
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" KSProductID || true
  defaults delete "${TMP_INFO_PLIST_DEFAULTS}" KSUpdateURL || true
fi

# Info.plist will work perfectly well in any plist format, but traditionally
# applications use xml1 for this, so convert it back after whatever defaults
# might have done.
plutil -convert xml1 "${TMP_INFO_PLIST}"
cp "${TMP_INFO_PLIST}" "${TARGET_BUILD_DIR}/${INFOPLIST_PATH}"

# Clean up.
rm -f "${TMP_INFO_PLIST}"