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authorEelco Dolstra <eelco.dolstra@logicblox.com>2016-06-02T11·33+0200
committerEelco Dolstra <eelco.dolstra@logicblox.com>2016-06-02T14·02+0200
commit812c0dfbe24c8fe93992f77abbf1e5a975ea42f4 (patch)
treed69bcc87ce446f270f6b01f7069655223d52a626 /src/nix-env/nix-env.cc
parentf2682e6e18a76ecbfb8a12c17e3a0ca15c084197 (diff)
Allow setting the state directory as a store parameter
E.g. "local?store=/tmp/store&state=/tmp/var".
Diffstat (limited to 'src/nix-env/nix-env.cc')
-rw-r--r--src/nix-env/nix-env.cc5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/nix-env/nix-env.cc b/src/nix-env/nix-env.cc
index fbb0f61a19d2..3f0486bb6541 100644
--- a/src/nix-env/nix-env.cc
+++ b/src/nix-env/nix-env.cc
@@ -692,6 +692,9 @@ static void opSetFlag(Globals & globals, Strings opFlags, Strings opArgs)
 
 static void opSet(Globals & globals, Strings opFlags, Strings opArgs)
 {
+    auto store2 = globals.state->store.dynamic_pointer_cast<LocalFSStore>();
+    if (!store2) throw Error("--set is not supported for this Nix store");
+
     for (Strings::iterator i = opFlags.begin(); i != opFlags.end(); ) {
         string arg = *i++;
         if (parseInstallSourceOptions(globals, i, opFlags, arg)) ;
@@ -722,7 +725,7 @@ static void opSet(Globals & globals, Strings opFlags, Strings opArgs)
     }
 
     debug(format("switching to new user environment"));
-    Path generation = createGeneration(globals.state->store, globals.profile, drv.queryOutPath());
+    Path generation = createGeneration(ref<LocalFSStore>(store2), globals.profile, drv.queryOutPath());
     switchLink(globals.profile, generation);
 }