forked from rpms/kernel
77 lines
1.6 KiB
Perl
77 lines
1.6 KiB
Perl
#! /usr/bin/perl
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my @args=@ARGV;
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my @configoptions;
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my @configvalues;
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my @alreadyprinted;
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my $configcounter = 0;
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# first, read the override file
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open (FILE,"$args[0]") || die "Could not open $args[0]";
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while (<FILE>) {
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my $str = $_;
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if (/\# ([\w]+) is not set/) {
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$configoptions[$configcounter] = $1;
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$configvalues[$configcounter] = $str;
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$alreadprinted[$configcounter] = 0;
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$configcounter ++;
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} else {
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if (/([\w]+)=/) {
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$configoptions[$configcounter] = $1;
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$configvalues[$configcounter] = $str;
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$alreadprinted[$configcounter] = 0;
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$configcounter ++;
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} else {
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$configoptions[$configcounter] = "$_";
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$configvalues[$configcounter] = $str;
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$alreadprinted[$configcounter] = 0;
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$configcounter ++;
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}
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}
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};
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# now, read and output the entire configfile, except for the overridden
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# parts... for those the new value is printed.
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# O(N^2) algorithm so if this is slow I need to look at it later
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open (FILE2,"$args[1]") || die "Could not open $args[1]";
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while (<FILE2>) {
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my $nooutput;
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my $counter;
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my $configname="$_";
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my $match;
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if (/\# ([\w]+) is not set/) {
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$configname = $1;
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} else {
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if (/([\w]+)=/) {
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$configname = $1;
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}
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}
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$counter = 0;
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$nooutput = 0;
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$match = 0;
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# print "C : $configname";
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while ($counter < $configcounter) {
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if ("$configname" eq "$configoptions[$counter]") {
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if ( ("$_" eq "$configvalues[$counter]") || ("$configname" eq "") ) {
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$match = 1;
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} else {
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$alreadyprinted[$configcounter] = 1;
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print "$_";
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$match = 1;
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}
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}
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$counter++;
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}
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if ($match == 0) {
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print "$_";
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}
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}
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1;
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