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nix-channel: Fix --update <CHANNELS>

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This unbreaks "nixos-rebuild --upgrade".
This commit is contained in:
Eelco Dolstra 2016-11-21 15:54:19 +01:00
parent 349e988903
commit 7ee43df862
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GPG key ID: 8170B4726D7198DE
1 changed files with 2 additions and 2 deletions
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4
src/nix-channel/nix-channel.cc
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@ -76,10 +76,10 @@ static void update(const StringSet & channelNames)
// Download each channel.
auto exprs = Strings{};
for (const auto & channel : channels) {
if (!channelNames.empty() && channelNames.find(channel.first) != channelNames.end())
continue;
auto name = channel.first;
auto url = channel.second;
if (!(channelNames.empty() || channelNames.count(name)))
continue;
// We want to download the url to a file to see if it's a tarball while also checking if we
// got redirected in the process, so that we can grab the various parts of a nix channel