#!/usr/bin/env perl

# Copyright (C) 2005-2017 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1.  Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer. 
# 2.  Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution. 
#
# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

use strict;
use warnings;
use File::Spec;
use FindBin;
use Getopt::Long qw(:config pass_through);
use lib $FindBin::Bin;
use webkitdirs;

my $showHelp = 0;
my $clean = 0;
my $useFullLibPaths = 0;
my $osxVersion;
my $force = 0;

determineXcodeSDK();

my $programName = basename($0);
my $usage = <<EOF;
Usage: $programName [options]
  --help                        Show this help message
  --clean                       Clean the libraries (default: $clean)
  --[no-]use-full-lib-paths     Toggle using full library paths
  --sdk=<sdk>                   Use a specific Xcode SDK
  --device                      Use the current iphoneos.internal SDK (iOS only)
  --simulator                   Use the current iphonesimulator SDK (iOS only)
  --osx-version=<version>       Set the OS X version to use when deciding what to copy.
  --[no-]force                  Toggle forcing the copy - i.e. ignoring timestamps (default: $force)
EOF

GetOptions(
    'help' => \$showHelp,
    'clean' => \$clean,
    'use-full-lib-paths!' => \$useFullLibPaths,
    'osx-version=s' => \$osxVersion,
    'force!' => \$force
);

if ($showHelp) {
   print STDERR $usage;
   exit 1;
}

my $productDir = shift @ARGV;
if ($productDir) {
    $productDir = File::Spec->rel2abs($productDir);
} else {
    $productDir = $ENV{BUILT_PRODUCTS_DIR} || productDir();
}

if (!isIOSWebKit() && !$osxVersion &&!isAnyWindows()) {
    $osxVersion = `sw_vers -productVersion | cut -d. -f-2`;
    chomp($osxVersion);
}

chdirWebKit();

sub executeRanlib($)
{
    my ($library) = @_;
    my @args;
    push @args, ("-sdk", xcodeSDK()) if xcodeSDK();
    push @args, "ranlib";
    push @args, "-no_warning_for_no_symbols" if isIOSWebKit();
    system("xcrun", @args, $library) == 0 or die;
}

sub unpackIfNecessary
{
    my ($targetDir, $sampleFile, $package, $hasLibraries) = @_;
    if ($force || !-e $sampleFile || -M $sampleFile > -M $package) {
        print "Unpacking $package into $targetDir\n";
        (system("tar -C $targetDir -xmf $package") == 0) or die;
        if ($hasLibraries) {
            foreach my $library (`tar -tf $package`) {
                chomp $library;
                print "   Ranlib $library\n";
                executeRanlib($targetDir . "/" . $library);
            }
        }
        return 1;
    }
    return 0;
}

sub dittoHeaders
{
    my ($srcHeader, $header) = @_;
    if ($force || !-e $header || -M $header > -M $srcHeader) {
        print "Updating $header\n";
        (system("ditto", $srcHeader, $header) == 0) or die;
    }
}

if ($clean) {
    print "Cleaning.\n";    
    unlink glob "$productDir/libLTO*" or die if glob "$productDir/libLTO*";
}

sub fileContains
{
    my ($filename, $string) = @_;
    open my $fileHandle, '<', $filename or die;
    while (<$fileHandle>) {
        return 1 if /^$string$/;
    }
    return 0;
}

sub isContentOfFileEqualToString($$)
{
    my ($filename, $string) = @_;
    open my $fileHandle, '<', $filename or die;
    binmode $fileHandle;
    my $contents = <$fileHandle>;
    return $contents eq $string;
}