72 lines
1.9 KiB
Perl
Executable file
72 lines
1.9 KiB
Perl
Executable file
#!/usr/bin/env perl
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#
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# filter-showIncludes.pl depfile.d objfile.o orginal.cxx
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#
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# Create dependency information from the output of cl.exe's showInclude. It
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# needs additional information - the output name to which to write, objfile
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# that depends on the includes, and the original file name.
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#
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# It also consolidates the file names to a canonical form, and filters out
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# duplicates.
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#
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# LGPL v3 / GPL v3 / MPL 1.1
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#
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# Original author: Jan Holesovsky <kendy@suse.cz>
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my $outfile = $ARGV[0];
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my $objfile = $ARGV[1];
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my $srcfile = $ARGV[2];
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if ( !defined $outfile || !defined $objfile || !defined $srcfile ) {
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die "Not enough parameters to create dependencies.";
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}
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my $showincludes_prefix = $ENV{'SHOWINCLUDES_PREFIX'};
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if ( !defined( $showincludes_prefix ) || $showincludes_prefix eq "" ) {
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$showincludes_prefix = 'Note: including file:';
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}
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open( OUT, "> $outfile" ) or die "Cannot open $outfile for writing.";
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print OUT "$objfile: \\\n $srcfile";
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my %seen;
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my $first_line = 1;
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while ( <STDIN> ) {
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if ( /^$showincludes_prefix/ ) {
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s/^$showincludes_prefix\s*//;
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s/\r$//;
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chomp;
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s/\\/\//g;
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# X: -> /cygdrive/x/
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s/^(.):/\/cygdrive\/\l\1/;
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s/ /\\ /g;
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if ( !defined $seen{$_} ) {
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$seen{$_} = 1;
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print OUT " \\\n $_";
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}
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}
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else {
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# skip the first line, it always just duplicates what is being
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# compiled
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print unless ( $first_line );
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}
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$first_line = 0;
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}
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print OUT "\n";
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# fdo#40099 if header.h does not exist, it will simply be considered out of
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# date and any targets that use it as a prerequisite will be updated,
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# which avoid misery when the header is deliberately deleted and removed
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# as an include
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# see http://www.makelinux.net/make3/make3-CHP-8-SECT-3
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foreach my $key ( keys %seen ) {
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print OUT "\n$key:\n";
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}
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close( OUT ) or die "Cannot close $outfile.";
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# vim: shiftwidth=4 softtabstop=4 expandtab:
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