62 lines
1.7 KiB
Perl
Executable file
62 lines
1.7 KiB
Perl
Executable file
#!/usr/bin/perl -w
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# This script finishes the job started by config.status by replacing the variables
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# of the form ${...} which were inserted into the file(s) by config.status.
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# Read all files with a single read statement
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$/ = undef;
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# List of variables to replace
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my %configvars = (
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"prefix" => { "value" => '@prefix@'},
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"exec_prefix" => { "value" => '@exec_prefix@'},
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);
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sub replace_var {
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my $filep = shift;
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my $cvp = shift;
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my $varname = shift;
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return if( $cvp->{ $varname}->{ "replaced"});
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if( defined( $cvp->{ $varname}->{ "dependency"})) {
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if( !$cvp->{ $cvp->{ $varname}->{ "dependency"}}->{ "replaced"}) {
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# If a dependency exists and it is not already replaced, replace it
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replace_var( $filep, $cvp, $cvp->{ $varname}->{ "dependency"});
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}
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}
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my $replacement = $cvp->{ $varname}->{ "value"};
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$$filep =~ s/\${$varname}/$replacement/g;
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$cvp->{ $varname}->{ "replaced"} = 1;
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}
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# Figure out the dependencies.
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foreach my $cv ( keys %configvars ) {
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if( $configvars{ $cv}->{ "value"} =~ /\${([^}]+)}/) {
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my $dependency = $1;
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if( exists( $configvars{ $dependency})) {
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$configvars{ $dependency}->{ "dependency"} = $cv;
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}
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$configvars{ $cv}->{ "replaced"} = 0;
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}
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}
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# Process each file
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while ($f = shift @ARGV) {
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# Read in the file
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open( FILE, $f) || die "Unable to open $f for reading";
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my $file = <FILE>;
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close( FILE) || die "Unable to close $f after reading";
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# Replace each of the variables we know about
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foreach $cv ( keys %configvars ) {
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replace_var( \$file, \%configvars, $cv);
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}
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# Write out the replacements
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open( FILE, ">$f") || die "Unable to open $f for writing";
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print FILE $file;
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close( FILE) || die "Unable to close $f after writing";
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}
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