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

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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
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9
src/libstore/derivations.hh
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@ -79,4 +79,13 @@ typedef std::map<Path, Hash> DrvHashes;
extern DrvHashes drvHashes;
/* Split a string specifying a derivation and a set of outputs
(/nix/store/hash-foo!out1,out2,...) into the derivation path and
the outputs. */
typedef std::pair<string, std::set<string> > DrvPathWithOutputs;
DrvPathWithOutputs parseDrvPathWithOutputs(const string & s);
Path makeDrvPathWithOutputs(const Path & drvPath, std::set<string> outputs);
}