forked from rpms/kernel
8985cfb689
We can run this once per RC (or somewhat frequently) to keep the split config-* files clean of dead Kconfig options
84 lines
1.4 KiB
Perl
84 lines
1.4 KiB
Perl
# By Paul Bolle October 2014.
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#
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# Contributed to the public domain by its author.
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use 5.016;
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use warnings;
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use autodie;
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use File::Find;
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my @Kconfigs;
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my $Kconfigre = qr/Kconfig.*/;
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my $configre = qr/^\s*(menu)?config\s+(?<config>(\w+))$/;
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my $CONFIG_re = qr/\bCONFIG_(?<CONFIG_>(\w+))/;
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sub match {
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push( @Kconfigs, $File::Find::name ) if ($_ =~ $Kconfigre);
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}
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sub parse_kconfig {
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my ($path) = @_;
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my @ret;
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open( my $kconfig, "<", $path );
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my $slurp = do { local $/ = undef; <$kconfig> };
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close( $kconfig );
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my @lines = split ( /\n/, $slurp );
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foreach my $line (@lines) {
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if ($line =~ /$configre/) {
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push( @ret, $+{config} );
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}
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}
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@ret;
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}
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sub parse_shipped {
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my ($path) = @_;
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my @ret;
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open( my $shipped, "<", $path );
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my $slurp = do { local $/ = undef; <$shipped> };
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close( $shipped );
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my @lines = split ( /\n/, $slurp );
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my $i = 1;
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foreach my $line (@lines) {
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if ($line =~ /$CONFIG_re/) {
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push( @ret, [$i, $+{CONFIG_}] );
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}
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$i++;
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}
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@ret;
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}
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exit main ( @ARGV );
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sub main {
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my %configs;
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find( \&match, @_ );
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foreach my $Kconfig (@Kconfigs) {
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my (@tmp) = parse_kconfig( $Kconfig );
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foreach my $config ( @tmp ) {
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$configs{ $config }++;
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}
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}
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foreach my $shipped (glob("config-*")) {
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my (@tmp) = parse_shipped( $shipped );
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foreach my $ref ( @tmp ) {
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say( STDERR "$shipped:$ref->[0]: No Kconfig symbol matches 'CONFIG_$ref->[1]'" )
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unless (grep( /$ref->[1]/, keys( %configs )));
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}
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}
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0;
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}
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