Add script to convert a patch to a prettypatch and show in the default browser

https://bugs.webkit.org/show_bug.cgi?id=56416

Reviewed by Darin Adler.

This can be used either like
    $ svn-create-patch | show-pretty-diff
or
    $ show-pretty-diff patch.diff

* Scripts/show-pretty-diff: Added.



git-svn-id: svn://svn.chromium.org/blink/trunk@81206 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Tools/ChangeLog

+2011-03-15  Sam Weinig  <sam@webkit.org>
+
+        Reviewed by Darin Adler.
+
+        Add script to convert a patch to a prettypatch and show in the default browser
+        https://bugs.webkit.org/show_bug.cgi?id=56416
+
+        This can be used either like
+            $ svn-create-patch | show-pretty-diff
+        or
+            $ show-pretty-diff patch.diff
+
+        * Scripts/show-pretty-diff: Added.
+
 2011-03-15  Brian Weinstein  <bweinstein@apple.com>
 
         Rubber-stamped by Adam Roben.

third_party/WebKit/Tools/Scripts/show-pretty-diff

+#!/usr/bin/perl -w
+
+# Copyright (C) 2011 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 INC. 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 INC. 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 FindBin;
+use File::Temp qw(tempfile);
+use lib $FindBin::Bin;
+use webkitdirs;
+
+my $inputPath = "";
+if ($ARGV[0]) {
+    $inputPath = $ARGV[0]
+} else {
+    # Create a temporary file for STDIN.
+    # FIXME: We can probably avoid putting this on the disk by directly piping
+    # to prettify.rb via IPC::Open2.
+    my $inputTempFileHandle;
+    ($inputTempFileHandle, $inputPath) = tempfile(
+        "inputtemp-XXXXXXXX",
+        DIR => File::Spec->tmpdir(),
+        SUFFIX => ".diff",
+        UNLINK => 0,
+    );
+
+    while (<STDIN>) {
+        print $inputTempFileHandle $_;
+    }
+
+    close($inputTempFileHandle);
+}
+
+# Create a temporary file for prettified patch.
+my ($prettydiffFileHandle, $prettydiffPath) = tempfile(
+    "prettydiff-XXXXXXXX",
+    DIR => File::Spec->tmpdir(),
+    SUFFIX => ".html",
+    UNLINK => 0,
+);
+close($prettydiffFileHandle);
+
+my $prettyPatchDir = sourceDir() . "/Websites/bugs.webkit.org/PrettyPatch/";
+my $prettyPatchTool = sourceDir() . "/Websites/bugs.webkit.org/PrettyPatch/prettify.rb";
+
+my $pathToPrettify = "ruby -I " . sourceDir() . "/Websites/bugs.webkit.org/PrettyPatch/ " . sourceDir() . "/Websites/bugs.webkit.org/PrettyPatch/prettify.rb";
+system "$pathToPrettify $inputPath > $prettydiffPath";
+
+if (isAppleMacWebKit()) {
+    system "open", $prettydiffPath;
+} elsif (isCygwin()) {
+    system "cygstart",$prettydiffPath;
+} elsif (isWindows()) {
+    system "start", $prettydiffPath;
+} else {
+    print "Created prettified diff at " . $prettydiffPath . ".";
+}