forked from lix-project/lix
e2f16b9cae
target no longer applies to any available release. This is a partial fix for NIX-34 (when producing linear patch sequences between releases, the number of patches grows without bound).
77 lines
1.6 KiB
Perl
Executable file
77 lines
1.6 KiB
Perl
Executable file
#! /usr/bin/perl -w -I. -I..
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use strict;
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use readmanifest;
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use readcache;
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my %allNarFiles;
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my %allPatches;
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my %allSuccessors;
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foreach my $manifest (glob "/data/webserver/dist/*/*/MANIFEST") {
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print STDERR "loading $manifest\n";
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readManifest($manifest, \%allNarFiles, \%allPatches, \%allSuccessors, 1);
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}
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foreach my $manifest (@ARGV) {
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print STDERR "shrinking manifest $manifest...\n";
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my %narFiles;
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my %patches;
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my %successors;
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if (readManifest($manifest, \%narFiles, \%patches, \%successors, 1) < 3) {
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print STDERR "manifest `$manifest' is too old (i.e., for Nix <= 0.7)\n";
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next;
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}
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my %done;
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sub traverse {
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my $p = shift;
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my $prefix = shift;
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print "$prefix$p\n";
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my $reachesNAR = 0;
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foreach my $patch (@{$patches{$p}}) {
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next if defined $done{$patch->{url}};
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$done{$patch->{url}} = 1;
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$reachesNAR = 1 if traverse ($patch->{basePath}, $prefix . " ");
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}
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$reachesNAR = 1 if defined $allNarFiles{$p};
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print " $prefix$reachesNAR\n";
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return $reachesNAR;
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}
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# foreach my $p (keys %narFiles) {
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# traverse ($p, "");
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# }
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my %newPatches;
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foreach my $p (keys %patches) {
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my $patchList = $patches{$p};
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my @newList;
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foreach my $patch (@{$patchList}) {
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if (! defined $allNarFiles{$patch->{basePath}} ||
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! defined $allNarFiles{$p} )
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{
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# print "REMOVING PATCH ", $patch->{basePath}, " -> ", $p, "\n";
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} else {
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# print "KEEPING PATCH ", $patch->{basePath}, " -> ", $p, "\n";
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push @newList, $patch;
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}
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}
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$newPatches{$p} = \@newList;
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}
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writeManifest ($manifest, \%narFiles, \%newPatches);
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}
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