Restructure installables handling in the "nix" command

1 files changed, 13 insertions, 22 deletions

diff --git a/src/nix/log.cc b/src/nix/log.cc
index d8a3830e9..75f3c1ab0 100644
--- a/src/nix/log.cc
+++ b/src/nix/log.cc
@@ -6,7 +6,7 @@
 
 using namespace nix;
 
-struct CmdLog : StoreCommand, MixInstallables
+struct CmdLog : MixInstallables
 {
     CmdLog()
     {
@@ -24,32 +24,23 @@ struct CmdLog : StoreCommand, MixInstallables
 
     void run(ref<Store> store) override
     {
-        auto elems = evalInstallables(store);
-
-        PathSet paths;
-
-        for (auto & elem : elems) {
-            if (elem.isDrv)
-                paths.insert(elem.drvPath);
-            else
-                paths.insert(elem.outPaths.begin(), elem.outPaths.end());
-        }
-
         auto subs = getDefaultSubstituters();
 
         subs.push_front(store);
 
-        for (auto & path : paths) {
-            bool found = false;
-            for (auto & sub : subs) {
-                auto log = sub->getBuildLog(path);
-                if (!log) continue;
-                std::cout << *log;
-                found = true;
-                break;
+        for (auto & inst : installables) {
+            for (auto & path : inst->toBuildable()) {
+                bool found = false;
+                for (auto & sub : subs) {
+                    auto log = sub->getBuildLog(path);
+                    if (!log) continue;
+                    std::cout << *log;
+                    found = true;
+                    break;
+                }
+                if (!found)
+                    throw Error("build log of path ‘%s’ is not available", path);
             }
-            if (!found)
-                throw Error("build log of path ‘%s’ is not available", path);
         }
     }
 };