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Don't keep "disabled" substituters running

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For instance, it's pointless to keep copy-from-other-stores running if
there are no other stores, or download-using-manifests if there are no
manifests.  This also speeds things up because we don't send queries
to those substituters.
This commit is contained in:
Eelco Dolstra 2013-06-20 11:55:15 +02:00
parent 2b29e4b852
commit 22144afa8d
9 changed files with 46 additions and 7 deletions
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5
perl/lib/Nix/Manifest.pm
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@ -227,6 +227,9 @@ sub writeManifest {
sub updateManifestDB {
my $manifestDir = $Nix::Config::manifestDir;
my @manifests = glob "$manifestDir/*.nixmanifest";
return undef if scalar @manifests == 0;
mkpath($manifestDir);
unlink "$manifestDir/cache.sqlite"; # remove obsolete cache
@ -311,7 +314,7 @@ EOF
# unless we've already done so on a previous run.
my %seen;
for my $manifestLink (glob "$manifestDir/*.nixmanifest") {
for my $manifestLink (@manifests) {
my $manifest = Cwd::abs_path($manifestLink);
next unless -f $manifest;
my $timestamp = lstat($manifest)->mtime;