forked from pool/kernel-source
6932762388
Copy from Kernel:HEAD/kernel-source based on submit request 37364 from user michal-m OBS-URL: https://build.opensuse.org/request/show/37364 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/kernel-source?expand=0&rev=90
61 lines
1.3 KiB
Perl
61 lines
1.3 KiB
Perl
#!/usr/bin/perl
|
|
#
|
|
# Merge two kernel configs, eliminating duplicated assignments.
|
|
# TODO:
|
|
# support for #include-style directives in config files, to make the
|
|
# kernel configs more maintainable
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
# ( { source => <file> name => ... value => ...}, { comment => ...}, ... )
|
|
my @lines;
|
|
# references into the @lines array
|
|
my %variables;
|
|
|
|
sub store_var {
|
|
my ($file, $line, $name, $value) = @_;
|
|
|
|
if (exists($variables{$name})) {
|
|
if ($variables{$name}->{source} eq $file) {
|
|
print STDERR "$file:$line: warning: $name redefined\n";
|
|
}
|
|
} else {
|
|
my $new = {};
|
|
push(@lines, $new);
|
|
$variables{$name} = $new;
|
|
}
|
|
$variables{$name}->{source} = $file;
|
|
$variables{$name}->{name} = $name;
|
|
$variables{$name}->{value} = $value;
|
|
}
|
|
|
|
sub store_comment {
|
|
my ($comment) = @_;
|
|
|
|
push(@lines, { comment => $comment });
|
|
}
|
|
|
|
while (<>) {
|
|
chomp;
|
|
if (/^CONFIG_(\w+)=(.*)/) {
|
|
store_var($ARGV, $., $1, $2);
|
|
} elsif (/^# CONFIG_(\w+) is not set/) {
|
|
store_var($ARGV, $., $1, 'n');
|
|
} elsif (/^$|^#/) {
|
|
store_comment($_);
|
|
} else {
|
|
print STDERR "$ARGV:$.: warning: ignoring unknown line\n";
|
|
}
|
|
}
|
|
|
|
for my $line (@lines) {
|
|
if (exists($line->{comment})) {
|
|
print "$line->{comment}\n";
|
|
} elsif ($line->{value} eq 'n') {
|
|
print "# CONFIG_$line->{name} is not set\n";
|
|
} else {
|
|
print "CONFIG_$line->{name}=$line->{value}\n";
|
|
}
|
|
}
|