* Put chroots in the Nix store. This ensures that we can create hard

links to the inputs.
This commit is contained in:
Eelco Dolstra 2008-12-12 17:14:57 +00:00
parent 0008b0006d
commit 92cb7c4dfe
2 changed files with 14 additions and 2 deletions

View file

@ -811,6 +811,11 @@ void DerivationGoal::haveDerivation()
return;
}
/* `drvPath' should already be a root, but let's be on the safe
side: if the user forgot to make it a root, we wouldn't want
things being garbage collected while we're busy. */
worker.store.addTempRoot(drvPath);
assert(worker.store.isValidPath(drvPath));
/* Get the derivation. */
@ -1669,8 +1674,10 @@ void DerivationGoal::startBuilder()
if (useChroot) {
#if CHROOT_ENABLED
/* Create a temporary directory in which we set up the chroot
environment using bind-mounts. */
chrootRootDir = createTempDir("", "nix-chroot");
environment using bind-mounts. We put it in the Nix store
to ensure that we can create hard-links to non-directory
inputs in the fake Nix store in the chroot (see below). */
chrootRootDir = drvPath + ".chroot";
/* Clean up the chroot directory automatically. */
autoDelChroot = boost::shared_ptr<AutoDelete>(new AutoDelete(chrootRootDir));

View file

@ -565,6 +565,11 @@ static bool isLive(const Path & path, const PathSet & livePaths,
if (hasSuffix(path, ".lock") && tempRoots.find(string(path, 0, path.size() - 5)) != tempRoots.end())
return true;
/* Don't delete .chroot directories for derivations that are
currently being built. */
if (hasSuffix(path, ".chroot") && tempRoots.find(string(path, 0, path.size() - 7)) != tempRoots.end())
return true;
return false;
}