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Add a --repair flag to ‘nix-store -r’ to repair derivation outputs

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With this flag, if any valid derivation output is missing or corrupt,
it will be recreated by using a substitute if available, or by
rebuilding the derivation.  The latter may use hash rewriting if
chroots are not available.
This commit is contained in:
Eelco Dolstra 2012-10-02 17:13:46 -04:00
parent cf46f19444
commit 2001895f3d
7 changed files with 116 additions and 64 deletions
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2
src/libstore/store-api.hh
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@ -184,7 +184,7 @@ public:
output paths can be created by running the builder, after
recursively building any sub-derivations. For inputs that are
not derivations, substitute them. */
virtual void buildPaths(const PathSet & paths) = 0;
virtual void buildPaths(const PathSet & paths, bool repair = false) = 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