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nix-channel improvements

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"nix-channel --add" now accepts a second argument: the channel name.
This allows channels to have a nicer name than (say) nixpkgs_unstable.
If no name is given, it defaults to the last component of the URL
(with "-unstable" or "-stable" removed).

Also, channels are now stored in a profile
(/nix/var/nix/profiles/per-user/$USER/channels).  One advantage of
this is that it allows rollbacks (e.g. if "nix-channel --update" gives
an undesirable update).
This commit is contained in:
Eelco Dolstra 2012-04-14 18:38:52 +02:00
parent 969a14599d
commit e855c7e2c9
6 changed files with 104 additions and 120 deletions
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6
corepkgs/unpack-channel.nix
View file

@ -1,11 +1,11 @@
with import <nix/config.nix>;
{ system, inputs }:
{ name, src }:
derivation {
name = "channels";
system = builtins.currentSystem;
builder = shell;
args = [ "-e" ./unpack-channel.sh ];
inherit system inputs bzip2 tar tr;
inherit name src bzip2 tar tr;
PATH = "${nixBinDir}:${coreutils}";
}