diff options
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.am | 5 | ||||
| -rw-r--r-- | scripts/nix-generate-patches.in | 42 |
2 files changed, 45 insertions, 2 deletions
diff --git a/scripts/Makefile.am b/scripts/Makefile.am index c55f92212..5f20dcfaf 100644 --- a/scripts/Makefile.am +++ b/scripts/Makefile.am @@ -1,7 +1,7 @@ bin_SCRIPTS = nix-collect-garbage \ nix-pull nix-push nix-prefetch-url \ nix-install-package nix-channel nix-build \ - nix-copy-closure + nix-copy-closure nix-generate-patches noinst_SCRIPTS = nix-profile.sh GeneratePatches.pm \ find-runtime-roots.pl build-remote.pl nix-reduce-build \ @@ -41,4 +41,5 @@ EXTRA_DIST = nix-collect-garbage.in \ find-runtime-roots.pl.in \ build-remote.pl.in \ nix-reduce-build.in \ - nix-http-export.cgi.in + nix-http-export.cgi.in \ + nix-generate-patches.in diff --git a/scripts/nix-generate-patches.in b/scripts/nix-generate-patches.in new file mode 100644 index 000000000..d22098a10 --- /dev/null +++ b/scripts/nix-generate-patches.in @@ -0,0 +1,42 @@ +#! @perl@ -w -I@libexecdir@/nix + +use strict; +use File::Temp qw(tempdir); +use readmanifest; +use GeneratePatches; + +if (scalar @ARGV != 5) { + print STDERR <<EOF; +Usage: nix-generate-patches NAR-DIR PATCH-DIR PATCH-URI OLD-MANIFEST NEW-MANIFEST + +This command generates binary patches between NAR files listed in +OLD-MANIFEST and NEW-MANIFEST. The patches are written to the +directory PATCH-DIR, and the prefix PATCH-URI is used to generate URIs +for the patches. The patches are added to NEW-MANIFEST. All NARs are +required to exist in NAR-DIR. Patches are generated between +succeeding versions of packages with the same name. +EOF + exit 1; +} + +my $narPath = $ARGV[0]; +my $patchesPath = $ARGV[1]; +my $patchesURL = $ARGV[2]; +my $srcManifest = $ARGV[3]; +my $dstManifest = $ARGV[4]; + +my (%srcNarFiles, %srcLocalPaths, %srcPatches); +readManifest $srcManifest, \%srcNarFiles, \%srcLocalPaths, \%srcPatches; + +my (%dstNarFiles, %dstLocalPaths, %dstPatches); +readManifest $dstManifest, \%dstNarFiles, \%dstLocalPaths, \%dstPatches; + +my $tmpDir = tempdir("nix-generate-patches.XXXXXX", CLEANUP => 1, TMPDIR => 1) + or die "cannot create a temporary directory"; + +generatePatches \%srcNarFiles, \%dstNarFiles, \%srcPatches, \%dstPatches, + $narPath, $patchesPath, $patchesURL, $tmpDir; + +propagatePatches \%srcPatches, \%dstNarFiles, \%dstPatches; + +writeManifest $dstManifest, \%dstNarFiles, \%dstPatches; |