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Fix assertion failure in canonicalisePathMetaData() after hash rewriting

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The assertion in canonicalisePathMetaData() failed because the
ownership of the path already changed due to the hash rewriting.  The
solution is not to check the ownership of rewritten paths.

Issue #122.
This commit is contained in:
Eelco Dolstra 2013-06-13 17:12:06 +02:00
parent 6cc2a8f8ed
commit 1e2c7c04b1
1 changed files with 9 additions and 2 deletions
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11
src/libstore/build.cc
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@ -789,6 +789,9 @@ private:
/* Outputs that are corrupt or not valid. */ /* Outputs that are corrupt or not valid. */
PathSet missingPaths; PathSet missingPaths;
/* Paths that have been subject to hash rewriting. */
PathSet rewrittenPaths;
/* User selected for running the builder. */ /* User selected for running the builder. */
UserLock buildUser; UserLock buildUser;
@ -1493,6 +1496,8 @@ void DerivationGoal::buildDone()
sink.s = rewriteHashes(sink.s, rewritesFromTmp); sink.s = rewriteHashes(sink.s, rewritesFromTmp);
StringSource source(sink.s); StringSource source(sink.s);
restorePath(path, source); restorePath(path, source);
rewrittenPaths.insert(path);
} }
/* Gain ownership of the build result using the setuid /* Gain ownership of the build result using the setuid
@ -2293,8 +2298,10 @@ void DerivationGoal::computeClosure()
% path % i->second.hashAlgo % printHash16or32(h) % printHash16or32(h2)); % path % i->second.hashAlgo % printHash16or32(h) % printHash16or32(h2));
} }
/* Get rid of all weird permissions. */ /* Get rid of all weird permissions. This also checks that
canonicalisePathMetaData(path, buildUser.enabled() ? buildUser.getUID() : -1); all files are owned by the build user, if applicable. */
canonicalisePathMetaData(path,
buildUser.enabled() && rewrittenPaths.find(path) == rewrittenPaths.end() ? buildUser.getUID() : -1);
/* For this output path, find the references to other paths /* For this output path, find the references to other paths
contained in it. Compute the SHA-256 NAR hash at the same contained in it. Compute the SHA-256 NAR hash at the same