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authorEelco Dolstra <e.dolstra@tudelft.nl>2005-02-01 13:48:46 +0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2005-02-01 13:48:46 +0000
commit630ae0c9d7f65a2d6bef85a5194b4d704e54eded (patch)
tree1cbb2dce71e58abb4617239857bbd144b1f355c1 /src/libutil/util.hh
parentdcc37c236c66ba463bd61fec23d046485d8a412f (diff)
* nix-build: use an indirection scheme to make it easier for users to
get rid of GC roots. Nix-build places a symlink `result' in the current directory. Previously, removing that symlink would not remove the store path being linked to as a GC root. Now, the GC root created by nix-build is actually a symlink in `/nix/var/nix/gcroots/auto' to `result'. So if that symlink is removed the GC root automatically becomes invalid (since it can no longer be resolved). The root itself is not automatically removed - the garbage collector should delete dangling roots.
Diffstat (limited to 'src/libutil/util.hh')
-rw-r--r--src/libutil/util.hh2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 104e3f265..d9d5a7cdf 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -84,6 +84,8 @@ bool pathExists(const Path & path);
in any way canonicalised. */
Path readLink(const Path & path);
+bool isLink(const Path & path);
+
/* Read the contents of a directory. The entries `.' and `..' are
removed. */
Strings readDirectory(const Path & path);