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-rw-r--r--src/nix/command.cc18
-rw-r--r--src/nix/command.hh39
2 files changed, 33 insertions, 24 deletions
diff --git a/src/nix/command.cc b/src/nix/command.cc
index 4034de96c162..2809a9b4f288 100644
--- a/src/nix/command.cc
+++ b/src/nix/command.cc
@@ -1,5 +1,6 @@
 #include "command.hh"
 #include "store-api.hh"
+#include "derivations.hh"
 
 namespace nix {
 
@@ -98,23 +99,32 @@ void StoreCommand::run()
 
 StorePathsCommand::StorePathsCommand()
 {
-    expectArgs("paths", &storePaths);
     mkFlag('r', "recursive", "apply operation to closure of the specified paths", &recursive);
     mkFlag(0, "all", "apply operation to the entire store", &all);
 }
 
 void StorePathsCommand::run(ref<Store> store)
 {
+    Paths storePaths;
+
     if (all) {
-        if (storePaths.size())
+        if (installables.size())
             throw UsageError("‘--all’ does not expect arguments");
         for (auto & p : store->queryAllValidPaths())
             storePaths.push_back(p);
     }
 
     else {
-        for (auto & storePath : storePaths)
-            storePath = store->followLinksToStorePath(storePath);
+        for (auto & i : installables) {
+            for (auto & path : i->toBuildable()) {
+                if (isDerivation(path)) {
+                    Derivation drv = store->derivationFromPath(path);
+                    for (auto & output : drv.outputs)
+                        storePaths.push_back(output.second.path);
+                } else
+                    storePaths.push_back(path);
+            }
+        }
 
         if (recursive) {
             PathSet closure;
diff --git a/src/nix/command.hh b/src/nix/command.hh
index ee9485e5dd14..dc7b2637d66a 100644
--- a/src/nix/command.hh
+++ b/src/nix/command.hh
@@ -44,26 +44,6 @@ private:
     std::shared_ptr<Store> _store;
 };
 
-/* A command that operates on zero or more store paths. */
-struct StorePathsCommand : public StoreCommand
-{
-private:
-
-    Paths storePaths;
-    bool recursive = false;
-    bool all = false;
-
-public:
-
-    StorePathsCommand();
-
-    using StoreCommand::run;
-
-    virtual void run(ref<Store> store, Paths storePaths) = 0;
-
-    void run(ref<Store> store) override;
-};
-
 struct Installable
 {
     virtual std::string what() = 0;
@@ -115,6 +95,25 @@ private:
     Value * vSourceExpr = 0;
 };
 
+/* A command that operates on zero or more store paths. */
+struct StorePathsCommand : public InstallablesCommand
+{
+private:
+
+    bool recursive = false;
+    bool all = false;
+
+public:
+
+    StorePathsCommand();
+
+    using StoreCommand::run;
+
+    virtual void run(ref<Store> store, Paths storePaths) = 0;
+
+    void run(ref<Store> store) override;
+};
+
 typedef std::map<std::string, ref<Command>> Commands;
 
 /* An argument parser that supports multiple subcommands,