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authorEelco Dolstra <e.dolstra@tudelft.nl>2008-12-03T15·06+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2008-12-03T15·06+0000
commit64519cfd657d024ae6e2bb74cb21ad21b886fd2a (patch)
treecfcc6f0457009a392914201f8379f2cbd734d147 /misc/emacs
parent09bc0c502c4a52baf0bd363d8ee5f18d49244f73 (diff)
* Unify the treatment of sources copied to the store, and recursive
  SHA-256 outputs of fixed-output derivations.  I.e. they now produce
  the same store path:

  $ nix-store --add x
  /nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x

  $ nix-store --add-fixed --recursive sha256 x
  /nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x

  the latter being the same as the path that a derivation

    derivation {
      name = "x";
      outputHashAlgo = "sha256";
      outputHashMode = "recursive";
      outputHash = "...";
      ...
    };

  produces.

  This does change the output path for such fixed-output derivations.
  Fortunately they are quite rare.  The most common use is fetchsvn
  calls with SHA-256 hashes.  (There are a handful of those is
  Nixpkgs, mostly unstable development packages.)
  
* Documented the computation of store paths (in store-api.cc).

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