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authorLudovic Courtès <ludo@gnu.org>2015-06-10 13:47:58 +0200
committerLudovic Courtès <ludo@gnu.org>2015-06-10 13:47:58 +0200
commit369755847b942806efe710b88146311849046017 (patch)
treed0b727384c489395be8ff34b2a4de524ecb492a0 /nix/guix-register
parent4ae1fe14b90dba3b3394852079783ca43272a675 (diff)
guix-register: Perform deduplication even when --prefix is passed.
Fixes <http://bugs.gnu.org/19044>. * nix/guix-register/guix-register.cc (register_validity): Change the (optimize && prefix.empty ()) condition to just (optimize). Change settings.nixStore around the loop. Prepend PREFIX to the argument passed to 'optimisePath'. * tests/guix-register.sh: Use 'guix-register -p' with duplicate files, and make sure they are deduplicated on the target. Adjust existing tests.
Diffstat (limited to 'nix/guix-register')
-rw-r--r--nix/guix-register/guix-register.cc14
1 files changed, 11 insertions, 3 deletions
diff --git a/nix/guix-register/guix-register.cc b/nix/guix-register/guix-register.cc
index f5c610fde0..f8f0eab4c2 100644
--- a/nix/guix-register/guix-register.cc
+++ b/nix/guix-register/guix-register.cc
@@ -1,5 +1,5 @@
/* GNU Guix --- Functional package management for GNU
- Copyright (C) 2013, 2014 Ludovic Courtès <ludo@gnu.org>
+ Copyright (C) 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012,
2013 Eelco Dolstra <eelco.dolstra@logicblox.com>
@@ -192,13 +192,21 @@ register_validity (LocalStore *store, std::istream &input,
store's '.links' directory, which means 'optimisePath' would try to link
to that instead of linking to the target store. Thus, disable
deduplication in this case. */
- if (optimize && prefix.empty ())
+ if (optimize)
{
/* Make sure deduplication is enabled. */
settings.autoOptimiseStore = true;
+ std::string store_dir = settings.nixStore;
+
+ /* 'optimisePath' creates temporary links under 'settings.nixStore' and
+ this must be the real target store, under PREFIX, to avoid
+ cross-device links. Thus, temporarily switch the value of
+ 'settings.nixStore'. */
+ settings.nixStore = prefix + store_dir;
foreach (ValidPathInfos::const_iterator, i, infos)
- store->optimisePath (i->path);
+ store->optimisePath (prefix + i->path);
+ settings.nixStore = store_dir;
}
}