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authorEelco Dolstra <e.dolstra@tudelft.nl>2007-02-21T22·45+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2007-02-21T22·45+0000
commit9da367b7d5e7c71efd802b87c99c11faff141499 (patch)
tree211ee4b64462765ffe10e587981ce61ca473c616 /src/libstore/store-api.hh
parent881feb96987dace75f983c16fec1013b70602d4f (diff)
* `nix-store -qR' and friends: print the paths sorted topologically
  under the references relation.  This is useful for commands that
  want to copy paths to another Nix store in the right order.

Diffstat (limited to 'src/libstore/store-api.hh')
-rw-r--r--src/libstore/store-api.hh5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh
index 1f2d60f11cb6..8531eb040496 100644
--- a/src/libstore/store-api.hh
+++ b/src/libstore/store-api.hh
@@ -242,6 +242,11 @@ Path addPermRoot(const Path & storePath, const Path & gcRoot,
     bool indirect, bool allowOutsideRootsDir = false);
 
 
+/* Sort a set of paths topologically under the references relation.
+   If p refers to q, then p follows q in this list. */
+Paths topoSortPaths(const PathSet & paths);
+
+
 /* For now, there is a single global store API object, but we'll
    purify that in the future. */
 extern boost::shared_ptr<StoreAPI> store;