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authorEelco Dolstra <eelco.dolstra@logicblox.com>2013-06-20T09·55+0200
committerEelco Dolstra <eelco.dolstra@logicblox.com>2013-06-20T09·55+0200
commit22144afa8d9f8968da351618a1347072a93bd8aa (patch)
treef0ebe5edf3a480a9d9afd637b9056e352e049541 /perl/lib/Nix/Manifest.pm
parent2b29e4b8529ec9f4d6904a5142266c02d1b24c99 (diff)
Don't keep "disabled" substituters running
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.
Diffstat (limited to 'perl/lib/Nix/Manifest.pm')
-rw-r--r--perl/lib/Nix/Manifest.pm5
1 files changed, 4 insertions, 1 deletions
diff --git a/perl/lib/Nix/Manifest.pm b/perl/lib/Nix/Manifest.pm
index ed43900b5c53..50e354c0c5bd 100644
--- a/perl/lib/Nix/Manifest.pm
+++ b/perl/lib/Nix/Manifest.pm
@@ -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;