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#!/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.

# This script expects the following environment variables to be set.  Xcode
# normally sets them:
#
# CONFIGURATION - Release or Debug; this script only operates when Release.
# SRCROOT - /path/to/chrome/src/chrome
# BUILT_PRODUTS_DIR - /path/to/chrome/src/xcodebuild/Release
#
# The script also takes a single argument defining the branding type.
#
# To test this script without running an entire build:
#
# cd /path/to/chrome/src/chrome
# CONFIGURATION=Release \
#     SRCROOT=$(pwd) \
#     BUILT_PRODUCTS_DIR=$(pwd)/../xcodebuild/Release \
#     ../build/mac/dump_app_syms Chromium

# Make sure we got the header to write into passed to us
if [ $# -ne 1 ]; then
  echo "error: missing branding as an argument" >&2
  exit 1
fi

set -ex

# Skip out if we're aren't in Release mode, no need for dump_syms on debug runs.
if [ "${CONFIGURATION}" != "Release" ] ; then
  exit 0
fi

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

BRAND_SCRIPT="${TOP}/build/branding_value.sh"
SRC_APP_NAME=$("${BRAND_SCRIPT}" "${BUILD_BRANDING}" PRODUCT_FULLNAME)
. "${TOP}/chrome/VERSION"

BREAKPAD_DUMP_SYMS="${BUILT_PRODUCTS_DIR}/dump_syms"
FULL_VERSION="${MAJOR}.${MINOR}.${BUILD}.${PATCH}"
ARCH="i386"

DSYM_TAR_PATH="${BUILT_PRODUCTS_DIR}/${SRC_APP_NAME}.dSYM.tar.bz2"

declare -a DSYMS

for SRC_NAME in "${SRC_APP_NAME}.app" \
                "${SRC_APP_NAME} Framework.framework" \
                "${SRC_APP_NAME} Helper.app" \
                "plugin_carbon_interpose.dylib" ; do
  # SRC_STEM is the name of the file within the DWARF directory of the .dSYM
  # bundle, which comes from the on-disk name of an executable or dylib within
  # its enclosing .app or .framework bundle.  This is the bundle name without
  # .app or .framework appended.  For non-bundled types, the stem is just the
  # name of the singular file on disk.
  SRC_STEM=$(echo "${SRC_NAME}" | sed -Ee 's/^(.*)\.(app|framework)$/\1/')
  DSYM_NAME="${SRC_NAME}.dSYM"
  DSYM_PATH="${BUILT_PRODUCTS_DIR}/${DSYM_NAME}"
  DWARF_PATH="${DSYM_PATH}/Contents/Resources/DWARF/${SRC_STEM}"
  BPAD_SYM_NAME="${SRC_NAME}-${FULL_VERSION}-${ARCH}.breakpad"
  BPAD_SYM_PATH="${BUILT_PRODUCTS_DIR}/${BPAD_SYM_NAME}"

  # Only run dump_syms if the file has changed since the last dump.
  if [ "${DWARF_PATH}" -nt "${BPAD_SYM_PATH}" ] ; then
    "${BREAKPAD_DUMP_SYMS}" -a "${ARCH}" "${DWARF_PATH}" > "${BPAD_SYM_PATH}"
  fi

  # Remove the .dSYM archive if the file has changed since the archive was
  # last generated.  This will cause a new .dSYM archive to be created.
  if [ "${DWARF_PATH}" -nt "${DSYM_TAR_PATH}" ] ; then
    rm -f "${DSYM_TAR_PATH}"
  fi

  # Push the .dSYM bundle onto the DSYMS array so that it will be included in
  # the .dSYM archive if a new one is needed
  DSYMS[${#DSYMS[@]}]="${DSYM_NAME}"
done

# Create the archive of .dSYM bundles.
if [ ! -e "${DSYM_TAR_PATH}" ] ; then
  # Change directory so that absolute paths aren't included in the archive.
  (cd "${BUILT_PRODUCTS_DIR}" &&
   tar --owner 0 --group 0 -jcf "${DSYM_TAR_PATH}" "${DSYMS[@]}")
fi