feat: allow passing project without source

src/default.nix

@@ -424,17 +424,18 @@ in let
   translateProjects = {
     discoveredProjects ?
       dlib.discoverers.discoverProjects
-      {inherit settings tree;},
+      {inherit projects settings tree;},
+    projects ? {},
     source ? throw "Pass either `source` or `tree` to translateProjects",
     tree ? dlib.prepareSourceTree {inherit source;},
     pname,
     settings ? [],
   } @ args: let
-    getTranslator = subsystem: translatorName:
-      subsystems."${subsystem}".translators."${translatorName}";
+    getTranslator = translatorName:
+      framework.translatorInstances.${translatorName};
 
     isImpure = project: translatorName:
-      (getTranslator project.subsystem translatorName).type == "impure";
+      (getTranslator translatorName).type == "impure";
 
     getInvalidationHash = project:
       dlib.calcInvalidationHash {
@@ -495,7 +496,7 @@ in let
     projectsResolvedOnTheFly =
       l.forEach projectsPureUnresolved
       (proj: let
-        translator = getTranslator proj.subsystem proj.translator;
+        translator = getTranslator proj.translator;
         dreamLock'' = translator.translate {
           inherit source tree discoveredProjects;
           project = proj;
@@ -609,7 +610,7 @@ in let
         (
           project:
             l.nameValuePair
-            "Name: ${project.name}; Subsystem: ${project.subsystem}; relPath: ${project.relPath}"
+            "Name: ${project.name}; Subsystem: ${project.subsystem or "?"}; relPath: ${project.relPath}"
             (utils.makeTranslateScript {inherit project source;})
         )
         impureDiscoveredProjects
@@ -634,8 +635,12 @@ in let
 
   makeOutputs = {
     source ? throw "pass a 'source' to 'makeOutputs'",
-    discoveredProjects ? dlib.discoverers.discoverProjects {inherit settings source;},
+    discoveredProjects ?
+      dlib.discoverers.discoverProjects {
+        inherit projects settings source;
+      },
     pname ? null,
+    projects ? {},
     settings ? [],
     packageOverrides ? {},
     sourceOverrides ? old: {},
@@ -644,7 +649,7 @@ in let
     impureDiscoveredProjects =
       l.filter
       (proj:
-        subsystems."${proj.subsystem}".translators."${proj.translator}".type
+        framework.translatorInstances."${proj.translator}".type
         == "impure")
       discoveredProjects;
 

src/lib.nix

@@ -75,6 +75,7 @@
     inject ? {},
     pname ? throw "Please pass `pname` to makeFlakeOutputs",
     packageOverrides ? {},
+    projects ? {},
     settings ? [],
     sourceOverrides ? oldSources: {},
   } @ args: let
@@ -92,7 +93,7 @@
     dream2nixFor = l.mapAttrs (_: pkgs: initD2N pkgs) allPkgs;
 
     discoveredProjects = dlib.discoverers.discoverProjects {
-      inherit settings;
+      inherit projects settings;
       tree = dlib.prepareSourceTree {inherit source;};
     };
 

src/lib/discoverers.nix

@@ -65,6 +65,7 @@
   );
 
   discoverProjects = {
+    projects,
     source ? throw "Pass either `source` or `tree` to discoverProjects",
     tree ? dlib.prepareSourceTree {inherit source;},
     settings ? [],
@@ -78,19 +79,22 @@
     discoveredProjectsSorted = let
       sorted =
         l.sort
-        (p1: p2: l.hasPrefix p1.relPath p2.relPath)
+        (p1: p2: l.hasPrefix p1.relPath or "" p2.relPath or "")
         discoveredProjects;
     in
       sorted;
 
-    rootProject = l.head discoveredProjectsSorted;
+    allProjects = discoveredProjectsSorted ++ (l.attrValues projects);
+
+    rootProject = l.head allProjects;
 
     projectsExtended =
-      l.forEach discoveredProjectsSorted
+      l.forEach allProjects
       (proj:
         proj
         // {
-          translator = l.head proj.translators;
+          relPath = proj.relPath or "";
+          translator = proj.translator or (l.head proj.translators);
           dreamLockPath = getDreamLockPath proj rootProject;
         });
   in
@@ -98,7 +102,7 @@
 
   getDreamLockPath = project: rootProject:
     dlib.sanitizeRelativePath
-    "${config.packagesDir}/${rootProject.name}/${project.relPath}/dream-lock.json";
+    "${config.packagesDir}/${rootProject.name}/${project.relPath or ""}/dream-lock.json";
 
   applyProjectSettings = projects: settingsList: let
     settingsListForProject = project:

src/utils/default.nix

@@ -188,7 +188,7 @@ in
       aggregate = project.aggregate or false;
 
       translator =
-        subsystems."${project.subsystem}".translators."${project.translator}";
+        framework.translatorInstances."${project.translator}";
 
       argsJsonFile =
         pkgs.writeText "translator-args.json"