211 lines
7 KiB
Perl
211 lines
7 KiB
Perl
use strict;
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sub addPatch {
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my ($patches, $storePath, $patch) = @_;
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$$patches{$storePath} = []
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unless defined $$patches{$storePath};
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my $patchList = $$patches{$storePath};
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my $found = 0;
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foreach my $patch2 (@{$patchList}) {
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$found = 1 if
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$patch2->{url} eq $patch->{url} &&
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$patch2->{basePath} eq $patch->{basePath};
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}
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push @{$patchList}, $patch if !$found;
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return !$found;
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}
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sub readManifest {
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my ($manifest, $narFiles, $localPaths, $patches) = @_;
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open MANIFEST, "<$manifest"
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or die "cannot open `$manifest': $!";
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my $inside = 0;
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my $type;
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my $manifestVersion = 2;
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my ($storePath, $url, $hash, $size, $basePath, $baseHash, $patchType);
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my ($narHash, $narSize, $references, $deriver, $hashAlgo, $copyFrom, $system);
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while (<MANIFEST>) {
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chomp;
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s/\#.*$//g;
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next if (/^$/);
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if (!$inside) {
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if (/^\s*(\w*)\s*\{$/) {
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$type = $1;
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$type = "narfile" if $type eq "";
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$inside = 1;
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undef $storePath;
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undef $url;
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undef $hash;
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undef $size;
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undef $narHash;
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undef $narSize;
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undef $basePath;
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undef $baseHash;
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undef $patchType;
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undef $system;
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$references = "";
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$deriver = "";
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$hashAlgo = "md5";
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}
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} else {
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if (/^\}$/) {
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$inside = 0;
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if ($type eq "narfile") {
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$$narFiles{$storePath} = []
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unless defined $$narFiles{$storePath};
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my $narFileList = $$narFiles{$storePath};
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my $found = 0;
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foreach my $narFile (@{$narFileList}) {
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$found = 1 if $narFile->{url} eq $url;
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}
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if (!$found) {
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push @{$narFileList},
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{ url => $url, hash => $hash, size => $size
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, narHash => $narHash, narSize => $narSize
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, references => $references
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, deriver => $deriver, hashAlgo => $hashAlgo
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, system => $system
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};
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}
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}
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elsif ($type eq "patch") {
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addPatch $patches, $storePath,
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{ url => $url, hash => $hash, size => $size
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, basePath => $basePath, baseHash => $baseHash
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, narHash => $narHash, narSize => $narSize
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, patchType => $patchType, hashAlgo => $hashAlgo
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};
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}
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elsif ($type eq "localPath") {
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$$localPaths{$storePath} = []
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unless defined $$localPaths{$storePath};
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my $localPathsList = $$localPaths{$storePath};
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# !!! remove duplicates
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push @{$localPathsList},
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{ copyFrom => $copyFrom, references => $references
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, deriver => ""
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};
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}
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}
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elsif (/^\s*StorePath:\s*(\/\S+)\s*$/) { $storePath = $1; }
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elsif (/^\s*CopyFrom:\s*(\/\S+)\s*$/) { $copyFrom = $1; }
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elsif (/^\s*Hash:\s*(\S+)\s*$/) { $hash = $1; }
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elsif (/^\s*URL:\s*(\S+)\s*$/) { $url = $1; }
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elsif (/^\s*Size:\s*(\d+)\s*$/) { $size = $1; }
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elsif (/^\s*SuccOf:\s*(\/\S+)\s*$/) { } # obsolete
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elsif (/^\s*BasePath:\s*(\/\S+)\s*$/) { $basePath = $1; }
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elsif (/^\s*BaseHash:\s*(\S+)\s*$/) { $baseHash = $1; }
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elsif (/^\s*Type:\s*(\S+)\s*$/) { $patchType = $1; }
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elsif (/^\s*NarHash:\s*(\S+)\s*$/) { $narHash = $1; }
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elsif (/^\s*NarSize:\s*(\d+)\s*$/) { $narSize = $1; }
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elsif (/^\s*References:\s*(.*)\s*$/) { $references = $1; }
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elsif (/^\s*Deriver:\s*(\S+)\s*$/) { $deriver = $1; }
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elsif (/^\s*ManifestVersion:\s*(\d+)\s*$/) { $manifestVersion = $1; }
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elsif (/^\s*System:\s*(\S+)\s*$/) { $system = $1; }
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# Compatibility;
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elsif (/^\s*NarURL:\s*(\S+)\s*$/) { $url = $1; }
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elsif (/^\s*MD5:\s*(\S+)\s*$/) { $hash = "md5:$1"; }
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}
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}
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close MANIFEST;
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return $manifestVersion;
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}
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sub writeManifest {
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my ($manifest, $narFiles, $patches, $noCompress) = @_;
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open MANIFEST, ">$manifest.tmp"; # !!! check exclusive
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print MANIFEST "version {\n";
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print MANIFEST " ManifestVersion: 3\n";
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print MANIFEST "}\n";
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foreach my $storePath (sort (keys %{$narFiles})) {
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my $narFileList = $$narFiles{$storePath};
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foreach my $narFile (@{$narFileList}) {
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print MANIFEST "{\n";
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print MANIFEST " StorePath: $storePath\n";
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print MANIFEST " NarURL: $narFile->{url}\n";
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print MANIFEST " Hash: $narFile->{hash}\n" if defined $narFile->{hash};
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print MANIFEST " Size: $narFile->{size}\n" if defined $narFile->{size};
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print MANIFEST " NarHash: $narFile->{narHash}\n";
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print MANIFEST " NarSize: $narFile->{narSize}\n" if $narFile->{narSize};
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print MANIFEST " References: $narFile->{references}\n"
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if defined $narFile->{references} && $narFile->{references} ne "";
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print MANIFEST " Deriver: $narFile->{deriver}\n"
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if defined $narFile->{deriver} && $narFile->{deriver} ne "";
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print MANIFEST " System: $narFile->{system}\n" if defined $narFile->{system};
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print MANIFEST "}\n";
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}
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}
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foreach my $storePath (sort (keys %{$patches})) {
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my $patchList = $$patches{$storePath};
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foreach my $patch (@{$patchList}) {
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print MANIFEST "patch {\n";
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print MANIFEST " StorePath: $storePath\n";
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print MANIFEST " NarURL: $patch->{url}\n";
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print MANIFEST " Hash: $patch->{hash}\n";
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print MANIFEST " Size: $patch->{size}\n";
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print MANIFEST " NarHash: $patch->{narHash}\n";
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print MANIFEST " NarSize: $patch->{narSize}\n" if $patch->{narSize};
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print MANIFEST " BasePath: $patch->{basePath}\n";
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print MANIFEST " BaseHash: $patch->{baseHash}\n";
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print MANIFEST " Type: $patch->{patchType}\n";
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print MANIFEST "}\n";
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}
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}
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close MANIFEST;
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rename("$manifest.tmp", $manifest)
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or die "cannot rename $manifest.tmp: $!";
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# Create a bzipped manifest.
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unless (defined $noCompress) {
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system("@bzip2@ < $manifest > $manifest.bz2.tmp") == 0
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or die "cannot compress manifest";
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rename("$manifest.bz2.tmp", "$manifest.bz2")
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or die "cannot rename $manifest.bz2.tmp: $!";
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}
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}
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return 1;
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