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      1 #!/usr/bin/perl -w
      2 
      3 # Copyright (C) 2005, 2006, 2007 Apple Computer, Inc.  All rights reserved.
      4 # Copyright (C) 2011 Carl Lobo.  All rights reserved.
      5 #
      6 # Redistribution and use in source and binary forms, with or without
      7 # modification, are permitted provided that the following conditions
      8 # are met:
      9 #
     10 # 1.  Redistributions of source code must retain the above copyright
     11 #     notice, this list of conditions and the following disclaimer. 
     12 # 2.  Redistributions in binary form must reproduce the above copyright
     13 #     notice, this list of conditions and the following disclaimer in the
     14 #     documentation and/or other materials provided with the distribution. 
     15 # 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     16 #     its contributors may be used to endorse or promote products derived
     17 #     from this software without specific prior written permission. 
     18 #
     19 # THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     20 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     22 # DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     23 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     24 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     26 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     28 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29 
     30 # Updates a development environment to the new WebKitAuxiliaryLibrary
     31 
     32 use strict;
     33 use warnings;
     34 
     35 use File::Find;
     36 use File::Spec;
     37 use File::Temp ();
     38 use FindBin;
     39 use HTTP::Date qw(str2time);
     40 use POSIX;
     41 use lib $FindBin::Bin;
     42 use webkitdirs;
     43 
     44 if ($#ARGV != 1) {
     45     die <<EOF;
     46 Usage:
     47         update-webkit-dependancy <URL with the dependancy zip file> <*prefix dir inside zip without filename>
     48 
     49         * If filename is requirements.zip and the contents of the zipfile are "requirements/x" then prefix = "."
     50         * If filename is xyz.zip and the contents of the zipfile are xyz/abc/x" then prefix = "abc"
     51         * x is lib or include or bin.
     52 EOF
     53 }
     54 
     55 sub lastModifiedToUnixTime($);
     56 sub getLibraryName($);
     57 
     58 # Time in seconds that the new zip file must be newer than the old for us to
     59 # consider them to be different. If the difference in modification time is less
     60 # than this threshold, we assume that the files are the same. We need this
     61 # because the zip file is served from a set of mirrors with slightly different
     62 # Last-Modified times.
     63 my $newnessThreshold = 30;
     64 
     65 my $libsURL = shift;
     66 my $prefixInZip = shift;
     67 my $sourceDir = sourceDir();
     68 my $file = getLibraryName($libsURL);
     69 my $zipFile = "$file.zip"; 
     70 my $webkitLibrariesDir = toUnixPath($ENV{'WEBKITLIBRARIESDIR'}) || "$sourceDir/WebKitLibraries/win";
     71 my $tmpRelativeDir = File::Temp::tempdir("webkitlibsXXXXXXX", TMPDIR => 1, CLEANUP => 1);
     72 my $tmpAbsDir = File::Spec->rel2abs($tmpRelativeDir);
     73 
     74 print "Checking Last-Modified date of $zipFile...\n";
     75 
     76 my $result = system "curl -s -I $libsURL | grep Last-Modified > \"$tmpAbsDir/$file.headers\"";
     77 
     78 if (WEXITSTATUS($result)) {
     79     print STDERR "Couldn't check Last-Modified date of new $zipFile.\n";
     80     print STDERR "Please ensure that $libsURL is reachable.\n";
     81 
     82     if (! -f "$webkitLibrariesDir/$file.headers") {
     83         print STDERR "Unable to check Last-Modified date and no version of $file to fall back to.\n";
     84         exit 1;
     85     }
     86 
     87     print STDERR "Falling back to existing version of $file.\n";
     88     exit 0;
     89 }
     90 
     91 if (open NEW, "$tmpAbsDir/$file.headers") {
     92     my $new = lastModifiedToUnixTime(<NEW>);
     93     close NEW;
     94 
     95     if (defined $new && open OLD, "$webkitLibrariesDir/$file.headers") {
     96         my $old = lastModifiedToUnixTime(<OLD>);
     97         close OLD;
     98         if (defined $old && abs($new - $old) < $newnessThreshold) {
     99             print "Current $file is up to date\n";
    100             exit 0;
    101         }
    102     }
    103 }
    104 
    105 print "Downloading $zipFile...\n\n";
    106 $result = system "curl -o \"$tmpAbsDir/$zipFile\" $libsURL";
    107 die "Couldn't download $zipFile!" if $result;
    108 
    109 $result = system "unzip", "-q", "-d", $tmpAbsDir, "$tmpAbsDir/$zipFile";
    110 die "Couldn't unzip $zipFile." if $result;
    111 
    112 print "\nInstalling $file...\n";
    113 
    114 sub wanted
    115 {
    116     my $relativeName = File::Spec->abs2rel($File::Find::name, "$tmpAbsDir/$file/$prefixInZip");
    117     my $destination = "$webkitLibrariesDir/$relativeName";
    118 
    119     if (-d $_) {
    120         mkdir $destination;
    121         return;
    122     }
    123 
    124     system "cp", $_, $destination;
    125 }
    126 
    127 File::Find::find(\&wanted, "$tmpAbsDir/$file");
    128 
    129 $result = system "mv", "$tmpAbsDir/$file.headers", $webkitLibrariesDir;
    130 print STDERR "Couldn't move $file.headers to $webkitLibrariesDir" . ".\n" if $result;
    131 
    132 print "The $file has been sucessfully installed in\n $webkitLibrariesDir\n";
    133 exit;
    134 
    135 sub toUnixPath
    136 {
    137     my $path = shift;
    138     return unless $path;
    139     chomp($path = `cygpath -u '$path'`);
    140     return $path;
    141 }
    142 
    143 sub lastModifiedToUnixTime($)
    144 {
    145     my ($str) = @_;
    146 
    147     $str =~ /^Last-Modified: (.*)$/ or return;
    148     return str2time($1);
    149 }
    150 
    151 sub getLibraryName($)
    152 {
    153     my $url = shift;
    154     $url =~ m#/([^/]+)\.zip$#;
    155     return $1;
    156 }
    157 
    158