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+#!/usr/bin/perl -w
+
+# Copyright (C) 2007, 2008, 2009, 2010 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.
+
+# Script to check that source file extensions match file types in Xcode project.pbxproj files.
+
+# TODO
+# - Add support for file types other than source code files.
+# - Can't differentiate between sourcecode.c.h and sourcecode.cpp.h.
+# (Hint: Use gcc -x c/objective-c/c++/objective-c++ -E. It will
+# take time to check each header using gcc, so make it a switch.)
+
+use strict;
+
+use File::Basename;
+use File::Spec;
+use File::Temp qw(tempfile);
+use Getopt::Long;
+
+# Map of Xcode file types to file extensions.
+my %typeExtensionMap = qw(
+ sourcecode.c.c .c
+ sourcecode.c.h .h
+ sourcecode.c.objc .m
+ sourcecode.cpp.h .h
+ sourcecode.cpp.cpp .cpp
+ sourcecode.cpp.objcpp .mm
+ sourcecode.exports .exp
+ sourcecode.javascript .js
+ sourcecode.make .make
+ sourcecode.mig .defs
+ sourcecode.yacc .y
+);
+
+# Map of file extensions to Xcode file types.
+my %extensionTypeMap = map { $typeExtensionMap{$_} => $_ } keys %typeExtensionMap;
+$extensionTypeMap{'.h'} = 'sourcecode.c.h'; # See TODO list.
+
+my $shouldFixIssues = 0;
+my $printWarnings = 1;
+my $showHelp;
+
+my $getOptionsResult = GetOptions(
+ 'f|fix' => \$shouldFixIssues,
+ 'h|help' => \$showHelp,
+ 'w|warnings!' => \$printWarnings,
+);
+
+if (scalar(@ARGV) == 0 && !$showHelp) {
+ print STDERR "ERROR: No Xcode project files (project.pbxproj) listed on command-line.\n";
+ undef $getOptionsResult;
+}
+
+if (!$getOptionsResult || $showHelp) {
+ print STDERR <<__END__;
+Usage: @{[ basename($0) ]} [options] path/to/project.pbxproj [path/to/project.pbxproj ...]
+ -f|--fix fix mismatched types in Xcode project file
+ -h|--help show this help message
+ -w|--[no-]warnings show or suppress warnings (default: show warnings)
+__END__
+ exit 1;
+}
+
+for my $projectFile (@ARGV) {
+ my $issuesFound = 0;
+ my $issuesFixed = 0;
+
+ if (basename($projectFile) =~ /\.xcodeproj$/) {
+ $projectFile = File::Spec->catfile($projectFile, "project.pbxproj");
+ }
+
+ if (basename($projectFile) ne "project.pbxproj") {
+ print STDERR "WARNING: Not an Xcode project file: $projectFile\n" if $printWarnings;
+ next;
+ }
+
+ open(IN, "< $projectFile") || die "Could not open $projectFile: $!";
+
+ my ($OUT, $tempFileName);
+ if ($shouldFixIssues) {
+ ($OUT, $tempFileName) = tempfile(
+ basename($projectFile) . "-XXXXXXXX",
+ DIR => dirname($projectFile),
+ UNLINK => 0,
+ );
+
+ # Clean up temp file in case of die()
+ $SIG{__DIE__} = sub {
+ close(IN);
+ close($OUT);
+ unlink($tempFileName);
+ };
+ }
+
+ # Fast-forward to "Begin PBXFileReference section".
+ while (my $line = <IN>) {
+ print $OUT $line if $shouldFixIssues;
+ last if $line =~ m#^\Q/* Begin PBXFileReference section */\E$#;
+ }
+
+ while (my $line = <IN>) {
+ if ($line =~ m#^\Q/* End PBXFileReference section */\E$#) {
+ print $OUT $line if $shouldFixIssues;
+ last;
+ }
+
+ if ($line =~ m#^\s*[A-Z0-9]{24} /\* (.+) \*/\s+=\s+\{.*\s+explicitFileType = (sourcecode[^;]*);.*\s+path = ([^;]+);.*\};$#) {
+ my $fileName = $1;
+ my $fileType = $2;
+ my $filePath = $3;
+ my (undef, undef, $fileExtension) = map { lc($_) } fileparse(basename($filePath), qr{\.[^.]+$});
+
+ if (!exists $typeExtensionMap{$fileType}) {
+ $issuesFound++;
+ print STDERR "WARNING: Unknown file type '$fileType' for file '$filePath'.\n" if $printWarnings;
+ } elsif ($typeExtensionMap{$fileType} ne $fileExtension) {
+ $issuesFound++;
+ print STDERR "WARNING: Incorrect file type '$fileType' for file '$filePath'.\n" if $printWarnings;
+ $line =~ s/(\s+)explicitFileType( = )(sourcecode[^;]*);/$1lastKnownFileType$2$extensionTypeMap{$fileExtension};/;
+ $issuesFixed++ if $shouldFixIssues;
+ }
+ }
+
+ print $OUT $line if $shouldFixIssues;
+ }
+
+ # Output the rest of the file.
+ print $OUT <IN> if $shouldFixIssues;
+
+ close(IN);
+
+ if ($shouldFixIssues) {
+ close($OUT);
+
+ unlink($projectFile) || die "Could not delete $projectFile: $!";
+ rename($tempFileName, $projectFile) || die "Could not rename $tempFileName to $projectFile: $!";
+ }
+
+ if ($printWarnings) {
+ printf STDERR "%s issues found for $projectFile.\n", ($issuesFound ? $issuesFound : "No");
+ print STDERR "$issuesFixed issues fixed for $projectFile.\n" if $issuesFixed && $shouldFixIssues;
+ print STDERR "NOTE: Open $projectFile in Xcode to let it have its way with the file.\n" if $issuesFixed;
+ print STDERR "\n";
+ }
+}
+
+exit 0;