wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-07-02 17:41:48 +02:00
Code Activity

Make "nix-build -A <derivation>.<output>" do the right thing

Browse source 
For example, given a derivation with outputs "out", "man" and "bin":

  $ nix-build -A pkg

produces ./result pointing to the "out" output;

  $ nix-build -A pkg.man

produces ./result-man pointing to the "man" output;

  $ nix-build -A pkg.all

produces ./result, ./result-man and ./result-bin;

  $ nix-build -A pkg.all -A pkg2

produces ./result, ./result-man, ./result-bin and ./result-2.
This commit is contained in:
Eelco Dolstra 2012-11-26 15:39:10 +01:00
parent a3d6585c5a
commit 46a369ad95
10 changed files with 106 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

17
src/libstore/derivations.cc
View file

@ -252,4 +252,21 @@ Hash hashDerivationModulo(StoreAPI & store, Derivation drv)
}
DrvPathWithOutputs parseDrvPathWithOutputs(const string & s)
{
size_t n = s.find("!");
return n == s.npos
? DrvPathWithOutputs(s, std::set<string>())
: DrvPathWithOutputs(string(s, 0, n), tokenizeString<std::set<string> >(string(s, n + 1), ","));
}
Path makeDrvPathWithOutputs(const Path & drvPath, std::set<string> outputs)
{
return outputs.empty()
? drvPath
: drvPath + "!" + concatStringsSep(",", outputs);
}
}