Support quoted attribute names in -A

This is requires if you have attribute names with dots in them.  So
you can now say:

  $ nix-instantiate '<nixos>' -A 'config.systemd.units."postgresql.service".text' --eval-only

Fixes #151.

2 files changed, 4 insertions, 4 deletions

diff --git a/tests/export-graph.nix b/tests/export-graph.nix
index 3a0b0368d6ca..fdac9583db2c 100644
--- a/tests/export-graph.nix
+++ b/tests/export-graph.nix
@@ -14,13 +14,13 @@ rec {
       done < refs
     '';
 
-  runtimeGraph = mkDerivation {
+  foo."bar.runtimeGraph" = mkDerivation {
     name = "dependencies";
     builder = builtins.toFile "build-graph-builder" "${printRefs}";
     exportReferencesGraph = ["refs" (import ./dependencies.nix)];
   };
 
-  buildGraph = mkDerivation {
+  foo."bar.buildGraph" = mkDerivation {
     name = "dependencies";
     builder = builtins.toFile "build-graph-builder" "${printRefs}";
     exportReferencesGraph = ["refs" (import ./dependencies.nix).drvPath];
diff --git a/tests/export-graph.sh b/tests/export-graph.sh
index 7f6f83d87c3b..a6fd69054425 100644
--- a/tests/export-graph.sh
+++ b/tests/export-graph.sh
@@ -9,7 +9,7 @@ checkRef() {
 
 # Test the export of the runtime dependency graph.
 
-outPath=$(nix-build ./export-graph.nix -A runtimeGraph -o $TEST_ROOT/result)
+outPath=$(nix-build ./export-graph.nix -A 'foo."bar.runtimeGraph"' -o $TEST_ROOT/result)
 
 test $(nix-store -q --references $TEST_ROOT/result | wc -l) = 2 || fail "bad nr of references"
 
@@ -20,7 +20,7 @@ for i in $(cat $outPath); do checkRef $i; done
 
 nix-store --gc # should force rebuild of input-1
 
-outPath=$(nix-build ./export-graph.nix -A buildGraph -o $TEST_ROOT/result)
+outPath=$(nix-build ./export-graph.nix -A 'foo."bar.buildGraph"' -o $TEST_ROOT/result)
 
 checkRef input-1
 checkRef input-1.drv