mirror of
https://github.com/NixOS/nix.git
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53 lines
1.7 KiB
Plaintext
Executable File
53 lines
1.7 KiB
Plaintext
Executable File
#! @perl@ -w @perlFlags@
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use strict;
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use File::Temp qw(tempdir);
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use Nix::Manifest;
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use Nix::GeneratePatches;
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if (scalar @ARGV != 5) {
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print STDERR <<EOF;
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Usage: nix-generate-patches NAR-DIR PATCH-DIR PATCH-URI OLD-MANIFEST NEW-MANIFEST
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This command generates binary patches between NAR files listed in
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OLD-MANIFEST and NEW-MANIFEST. The patches are written to the
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directory PATCH-DIR, and the prefix PATCH-URI is used to generate URIs
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for the patches. The patches are added to NEW-MANIFEST. All NARs are
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required to exist in NAR-DIR. Patches are generated between
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succeeding versions of packages with the same name.
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EOF
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exit 1;
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}
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my $narPath = $ARGV[0];
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my $patchesPath = $ARGV[1];
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my $patchesURL = $ARGV[2];
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my $srcManifest = $ARGV[3];
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my $dstManifest = $ARGV[4];
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my (%srcNarFiles, %srcLocalPaths, %srcPatches);
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readManifest $srcManifest, \%srcNarFiles, \%srcPatches;
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my (%dstNarFiles, %dstLocalPaths, %dstPatches);
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readManifest $dstManifest, \%dstNarFiles, \%dstPatches;
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my $tmpDir = tempdir("nix-generate-patches.XXXXXX", CLEANUP => 1, TMPDIR => 1)
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or die "cannot create a temporary directory";
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generatePatches \%srcNarFiles, \%dstNarFiles, \%srcPatches, \%dstPatches,
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$narPath, $patchesPath, $patchesURL, $tmpDir;
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propagatePatches \%srcPatches, \%dstNarFiles, \%dstPatches;
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# Optionally add all new patches to the manifest in $NIX_ALL_PATCHES.
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my $allPatchesFile = $ENV{"NIX_ALL_PATCHES"};
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if (defined $allPatchesFile) {
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my (%dummy, %allPatches);
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readManifest("$patchesPath/all-patches", \%dummy, \%allPatches)
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if -f $allPatchesFile;
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copyPatches \%dstPatches, \%allPatches;
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writeManifest($allPatchesFile, {}, \%allPatches, 0);
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}
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writeManifest $dstManifest, \%dstNarFiles, \%dstPatches;
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