diff options
| -rwxr-xr-x | scripts/nix-channel.in | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/scripts/nix-channel.in b/scripts/nix-channel.in index d7573258c416..ebfc246cfa30 100755 --- a/scripts/nix-channel.in +++ b/scripts/nix-channel.in @@ -79,20 +79,14 @@ sub update { # Create the manifests directory if it doesn't exist. mkdir $manifestDir, 0755 unless -e $manifestDir; - # Do we have write permission to the manifests directory? If not, - # then just skip pulling the manifest and just download the Nix - # expressions. If the user is a non-privileged user in a - # multi-user Nix installation, he at least gets installation from - # source. - if (-W $manifestDir) { - - # Pull cache manifests. - foreach my $url (@channels) { - #print "pulling cache manifest from `$url'\n"; - system("$Nix::Config::binDir/nix-pull", "--skip-wrong-store", "$url/MANIFEST") == 0 - or die "cannot pull cache manifest from `$url'"; - } + # Do we have write permission to the manifests directory? + die "$0: you do not have write permission to `$manifestDir'!\n" unless -W $manifestDir; + # Pull cache manifests. + foreach my $url (@channels) { + #print "pulling cache manifest from `$url'\n"; + system("$Nix::Config::binDir/nix-pull", "--skip-wrong-store", "$url/MANIFEST") == 0 + or die "cannot pull cache manifest from `$url'"; } # Create a Nix expression that fetches and unpacks the channel Nix |