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nix-channel --update: allow updating only the specified channels

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This commit is contained in:
Eelco Dolstra 2012-05-07 17:55:56 -04:00
parent 147f10157f
commit afa7b8a479
2 changed files with 14 additions and 10 deletions
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9
scripts/nix-channel.in
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@ -76,6 +76,8 @@ sub removeChannel {
# Fetch Nix expressions and pull manifests from the subscribed
# channels.
sub update {
my @channelNames = @_;
readChannels;
# Create the manifests directory if it doesn't exist.
@ -87,6 +89,8 @@ sub update {
# Download each channel.
my $exprs = "";
foreach my $name (keys %channels) {
next if scalar @channelNames > 0 && ! grep { $_ eq $name } @{channelNames};
my $url = $channels{$name};
my $origUrl = "$url/MANIFEST";
@ -141,7 +145,7 @@ Usage:
nix-channel --add URL [CHANNEL-NAME]
nix-channel --remove CHANNEL-NAME
nix-channel --list
nix-channel --update
nix-channel --update [CHANNEL-NAME...]
EOF
exit 1;
}
@ -182,8 +186,7 @@ while (scalar @ARGV) {
}
elsif ($arg eq "--update") {
usageError if scalar @ARGV != 0;
update;
update(@ARGV);
last;
}