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lix/corepkgs/unpack-channel.nix
Eelco Dolstra 88571219d9
nix-channel: Don't fetch binary-cache-url
This has been ignored since the Perl->C++ rewrite.
2019-06-25 13:27:16 +02:00

40 lines
791 B
Nix

with import <nix/config.nix>;
let
builder = builtins.toFile "unpack-channel.sh"
''
mkdir $out
cd $out
xzpat="\.xz\$"
gzpat="\.gz\$"
if [[ "$src" =~ $xzpat ]]; then
${xz} -d < $src | ${tar} xf - ${tarFlags}
elif [[ "$src" =~ $gzpat ]]; then
${gzip} -d < $src | ${tar} xf - ${tarFlags}
else
${bzip2} -d < $src | ${tar} xf - ${tarFlags}
fi
if [ * != $channelName ]; then
mv * $out/$channelName
fi
'';
in
{ name, channelName, src }:
derivation {
system = builtins.currentSystem;
builder = shell;
args = [ "-e" builder ];
inherit name channelName src;
PATH = "${nixBinDir}:${coreutils}";
# No point in doing this remotely.
preferLocalBuild = true;
inherit chrootDeps;
}