Remove Input::direct

src/libfetchers/fetchers.cc

@@ -88,6 +88,12 @@ Attrs Input::toAttrs() const
     return attrs;
 }
 
+bool Input::isDirect() const
+{
+    assert(scheme);
+    return !scheme || scheme->isDirect(*this);
+}
+
 std::optional<CanonPath> Input::isRelative() const
 {
     assert(scheme);

src/libfetchers/fetchers.hh

@@ -28,7 +28,6 @@ struct Input
     std::shared_ptr<InputScheme> scheme; // note: can be null
     Attrs attrs;
     bool locked = false;
-    bool direct = true;
 
 public:
     static Input fromURL(const std::string & url);
@@ -47,7 +46,7 @@ public:
 
     /* Check whether this is a "direct" input, that is, not
        one that goes through a registry. */
-    bool isDirect() const { return direct; }
+    bool isDirect() const;
 
     /* Check whether this is a "locked" input, that is,
        one that contains a commit hash or content hash. */
@@ -138,6 +137,9 @@ struct InputScheme
 
     virtual std::pair<ref<InputAccessor>, Input> getAccessor(ref<Store> store, const Input & input) const = 0;
 
+    virtual bool isDirect(const Input & input) const
+    { return true; }
+
     virtual std::optional<CanonPath> isRelative(const Input & input) const
     { return std::nullopt; }
 

src/libfetchers/indirect.cc

@@ -41,7 +41,6 @@ struct IndirectInputScheme : InputScheme
         // FIXME: forbid query params?
 
         Input input;
-        input.direct = false;
         input.attrs.insert_or_assign("type", "indirect");
         input.attrs.insert_or_assign("id", id);
         if (rev) input.attrs.insert_or_assign("rev", rev->gitRev());
@@ -63,7 +62,6 @@ struct IndirectInputScheme : InputScheme
             throw BadURL("'%s' is not a valid flake ID", id);
 
         Input input;
-        input.direct = false;
         input.attrs = attrs;
         return input;
     }
@@ -98,6 +96,9 @@ struct IndirectInputScheme : InputScheme
     {
         throw Error("indirect input '%s' cannot be fetched directly", input.to_string());
     }
+
+    bool isDirect(const Input & input) const override
+    { return false; }
 };
 
 static auto rIndirectInputScheme = OnStartup([] { registerInputScheme(std::make_unique<IndirectInputScheme>()); });