* Put chroots in the Nix store. This ensures that we can create hard
links to the inputs.
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2 changed files with 14 additions and 2 deletions
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@ -811,6 +811,11 @@ void DerivationGoal::haveDerivation()
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return;
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}
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/* `drvPath' should already be a root, but let's be on the safe
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side: if the user forgot to make it a root, we wouldn't want
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things being garbage collected while we're busy. */
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worker.store.addTempRoot(drvPath);
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assert(worker.store.isValidPath(drvPath));
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/* Get the derivation. */
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@ -1669,8 +1674,10 @@ void DerivationGoal::startBuilder()
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if (useChroot) {
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#if CHROOT_ENABLED
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/* Create a temporary directory in which we set up the chroot
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environment using bind-mounts. */
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chrootRootDir = createTempDir("", "nix-chroot");
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environment using bind-mounts. We put it in the Nix store
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to ensure that we can create hard-links to non-directory
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inputs in the fake Nix store in the chroot (see below). */
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chrootRootDir = drvPath + ".chroot";
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/* Clean up the chroot directory automatically. */
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autoDelChroot = boost::shared_ptr<AutoDelete>(new AutoDelete(chrootRootDir));
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@ -565,6 +565,11 @@ static bool isLive(const Path & path, const PathSet & livePaths,
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if (hasSuffix(path, ".lock") && tempRoots.find(string(path, 0, path.size() - 5)) != tempRoots.end())
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return true;
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/* Don't delete .chroot directories for derivations that are
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currently being built. */
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if (hasSuffix(path, ".chroot") && tempRoots.find(string(path, 0, path.size() - 7)) != tempRoots.end())
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return true;
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return false;
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}
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