* Support for doing builds in a chroot under Linux. The builder is

  executed in a chroot that contains just the Nix store, the temporary
  build directory, and a configurable set of additional directories
  (/dev and /proc by default).  This allows a bit more purity
  enforcement: hidden build-time dependencies on directories such as
  /usr or /nix/var/nix/profiles are no longer possible.  As an added
  benefit, accidental network downloads (cf. NIXPKGS-52) are prevented
  as well (because files such as /etc/resolv.conf are not available in
  the chroot).

  However the usefulness of chroots is diminished by the fact that
  many builders depend on /bin/sh, so you need /bin in the list of
  additional directories.  (And then on non-NixOS you need /lib as
  well...)

1 files changed, 5 insertions, 3 deletions

diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index f72a6f8201..0ed98118c5 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -72,8 +72,9 @@ void makePathReadOnly(const Path & path);
 /* Create a temporary directory. */
 Path createTempDir(const Path & tmpRoot = "");
 
-/* Create a directory and all its parents, if necessary. */
-void createDirs(const Path & path);
+/* Create a directory and all its parents, if necessary.  Returns the
+   list of created directories, in order of creation. */
+Paths createDirs(const Path & path);
 
 /* Create a file and write the given text to it.  The file is written
    in binary mode (i.e., no end-of-line conversions).  The path should
@@ -166,8 +167,9 @@ class AutoDelete
 {
     Path path;
     bool del;
+    bool recursive;    
 public:
-    AutoDelete(const Path & p);
+    AutoDelete(const Path & p, bool recursive = true);
     ~AutoDelete();
     void cancel();
 };