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* Build hooks: use nix-store --import. This prevents a redundant

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scan for runtime dependencies (i.e. the local machine shouldn't do a
  scan that the remote machine has already done).  Also pipe directly
  into `nix-store --import': don't use a temporary file.
This commit is contained in:
Eelco Dolstra 2009-02-02 17:24:10 +00:00
parent 6f8c96d123
commit b682fae9d9
3 changed files with 29 additions and 22 deletions
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9
src/libstore/local-store.cc
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@ -924,7 +924,14 @@ Path LocalStore::importPath(bool requireSignature, Source & source)
if (!isValidPath(dstPath)) {
PathLocks outputLock(singleton<PathSet, Path>(dstPath));
PathLocks outputLock;
/* Lock the output path. But don't lock if we're being called
from a build hook (whose parent process already acquired a
lock on this path). */
Strings locksHeld = tokenizeString(getEnv("NIX_HELD_LOCKS"));
if (find(locksHeld.begin(), locksHeld.end(), dstPath) == locksHeld.end())
outputLock.lockPaths(singleton<PathSet, Path>(dstPath));
if (!isValidPath(dstPath)) {