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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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3
src/libstore/remote-store.cc
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@ -474,8 +474,9 @@ Paths RemoteStore::importPaths(bool requireSignature, Source & source)
}
void RemoteStore::buildPaths(const PathSet & drvPaths)
void RemoteStore::buildPaths(const PathSet & drvPaths, bool repair)
{
if (repair) throw Error("`--repair' is not supported when building through the Nix daemon");
openConnection();
writeInt(wopBuildPaths, to);
writeStrings(drvPaths, to);