120 lines
2.2 KiB
Perl
120 lines
2.2 KiB
Perl
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#!/usr/bin/env perl
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use strict;
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use File::Find;
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use File::Copy;
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use Digest::MD5;
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my @fileTypes = ("cpp", "c");
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my %dirFiles;
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my %dirCMake;
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sub GetFiles {
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my $dir = shift;
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my $x = $dirFiles{$dir};
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if (!defined $x) {
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$x = [];
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$dirFiles{$dir} = $x;
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}
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return $x;
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}
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sub ProcessFile {
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my $file = $_;
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my $dir = $File::Find::dir;
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# Record if a CMake file was found.
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if ($file eq "CMakeLists.txt") {
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$dirCMake{$dir} = $File::Find::name;
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return 0;
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}
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# Grab the extension of the file.
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$file =~ /\.([^.]+)$/;
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my $ext = $1;
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my $files;
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foreach my $x (@fileTypes) {
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if ($ext eq $x) {
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if (!defined $files) {
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$files = GetFiles($dir);
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}
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push @$files, $file;
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return 0;
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}
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}
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return 0;
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}
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sub EmitCMakeList {
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my $dir = shift;
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my $files = $dirFiles{$dir};
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if (!defined $files) {
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return;
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}
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foreach my $file (sort @$files) {
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print OUT " ";
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print OUT $file;
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print OUT "\n";
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}
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}
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sub UpdateCMake {
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my $cmakeList = shift;
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my $dir = shift;
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my $cmakeListNew = $cmakeList . ".new";
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open(IN, $cmakeList);
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open(OUT, ">", $cmakeListNew);
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my $foundLibrary = 0;
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while(<IN>) {
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if (!$foundLibrary) {
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print OUT $_;
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if (/^add_clang_library\(/ || /^add_llvm_library\(/ || /^add_llvm_target\(/
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|| /^add_executable\(/) {
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$foundLibrary = 1;
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EmitCMakeList($dir);
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}
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}
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else {
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if (/\)/) {
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print OUT $_;
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$foundLibrary = 0;
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}
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}
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}
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close(IN);
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close(OUT);
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open(FILE, $cmakeList) or
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die("Cannot open $cmakeList when computing digest\n");
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binmode FILE;
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my $digestA = Digest::MD5->new->addfile(*FILE)->hexdigest;
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close(FILE);
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open(FILE, $cmakeListNew) or
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die("Cannot open $cmakeListNew when computing digest\n");
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binmode FILE;
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my $digestB = Digest::MD5->new->addfile(*FILE)->hexdigest;
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close(FILE);
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if ($digestA ne $digestB) {
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move($cmakeListNew, $cmakeList);
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return 1;
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}
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unlink($cmakeListNew);
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return 0;
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}
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sub UpdateCMakeFiles {
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foreach my $dir (sort keys %dirCMake) {
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if (UpdateCMake($dirCMake{$dir}, $dir)) {
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print "Updated: $dir\n";
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}
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}
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}
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find({ wanted => \&ProcessFile, follow => 1 }, '.');
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UpdateCMakeFiles();
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