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nix-store -r: do substitutions in parallel

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I.e. when multiple non-derivation arguments are passed to ‘nix-store
-r’ to be substituted, do them in parallel.
This commit is contained in:
Eelco Dolstra 2012-06-27 16:58:15 -04:00
parent 42f5a2fc29
commit 1aba0bf0fa
11 changed files with 30 additions and 25 deletions
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8
src/libstore/store-api.hh
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@ -172,13 +172,15 @@ public:
the Nix store. */
virtual Paths importPaths(bool requireSignature, Source & source) = 0;
/* Ensure that the output paths of the derivation are valid. If
/* For each path, if it's a derivation, build it. Building a
derivation means ensuring that the output paths are valid. If
they are already valid, this is a no-op. Otherwise, validity
can be reached in two ways. First, if the output paths is
substitutable, then build the path that way. Second, the
output paths can be created by running the builder, after
recursively building any sub-derivations. */
virtual void buildDerivations(const PathSet & drvPaths) = 0;
recursively building any sub-derivations. For inputs that are
not derivations, substitute them. */
virtual void buildPaths(const PathSet & paths) = 0;
/* Ensure that a path is valid. If it is not currently valid, it
may be made valid by running a substitute (if defined for the