close #92 - refresh project dependencies after build

dub.json

@@ -13,7 +13,7 @@
 
     "dependencies": {
         "dlangui": "~>0.7.37",
-        "dcd": "~>0.7.5-3"
+        "dcd": "~>0.7.4"
     },
 
     "versions": ["EmbedStandardResources"]

src/dlangide/ui/frame.d

@@ -1247,7 +1247,10 @@ class IDEFrame : AppFrame, ProgramExecutionStatusListener, BreakpointListChangeL
     }
 
     void refreshProject(Project project) {
-        // TODO
+        if (currentWorkspace && project.loadSelections()) {
+            currentWorkspace.cleanupUnusedDependencies();
+            refreshWorkspace();
+        }
     }
 
     void buildProject(BuildOperation buildOp, Project project, BuildResultListener listener = null) {

src/dlangide/workspace/project.d

@@ -642,37 +642,53 @@ class Project : WorkspaceItem {
 
     protected Project[] _dependencies;
     @property Project[] dependencies() { return _dependencies; }
-    protected bool addDependency(Project dep) {
-        if (_workspace)
-            _workspace.addDependencyProject(dep);
-        _dependencies ~= dep;
-        return true;
+
+    Project findDependencyProject(string filename) {
+        foreach(dep; _dependencies) {
+            if (dep.filename.equal(filename))
+                return dep;
+        }
+        return null;
     }
 
     bool loadSelections() {
+        Project[] newdeps;
         _dependencies.length = 0;
         DubPackageFinder finder = new DubPackageFinder();
         scope(exit) destroy(finder);
         SettingsFile selectionsFile = new SettingsFile(buildNormalizedPath(_dir, "dub.selections.json"));
-        if (!selectionsFile.load())
+        if (!selectionsFile.load()) {
+            _dependencies = newdeps;
             return false;
+        }
         Setting versions = selectionsFile.objectByPath("versions");
-        if (!versions.isObject)
+        if (!versions.isObject) {
+            _dependencies = newdeps;
             return false;
+        }
         string[string] versionMap = versions.strMap;
         foreach(packageName, packageVersion; versionMap) {
             string fn = finder.findPackage(packageName, packageVersion);
             Log.d("dependency ", packageName, " ", packageVersion, " : ", fn ? fn : "NOT FOUND");
             if (fn) {
-                Project p = new Project(_workspace, fn, packageVersion);
+                Project p = findDependencyProject(fn);
+                if (p) {
+                    Log.d("Found existing dependency project ", fn);
+                    newdeps ~= p;
+                    continue;
+                }
+                p = new Project(_workspace, fn, packageVersion);
                 if (p.load()) {
-                    addDependency(p);
+                    newdeps ~= p;
+                    if (_workspace)
+                        _workspace.addDependencyProject(p);
                 } else {
                     Log.e("cannot load dependency package ", packageName, " ", packageVersion, " from file ", fn);
                     destroy(p);
                 }
             }
         }
+        _dependencies = newdeps;
         return true;
     }
 }

src/dlangide/workspace/workspace.d

@@ -194,6 +194,31 @@ class Workspace : WorkspaceItem {
         fillStartupProject();
     }
 
+    Project removeProject(int index) {
+        if (index < 0 || index > _projects.length)
+            return null;
+        Project res = _projects[index];
+        for (int j = index; j + 1 < _projects.length; j++)
+            _projects[j] = _projects[j + 1];
+        return res;
+    }
+
+    bool isDependencyProjectUsed(string filename) {
+        foreach(p; _projects)
+            if (!p.isDependency && p.findDependencyProject(filename))
+                return true;
+        return false;
+    }
+
+    void cleanupUnusedDependencies() {
+        for (int i = cast(int)_projects.length - 1; i >= 0; i--) {
+            if (_projects[i].isDependency) {
+                if (!isDependencyProjectUsed(_projects[i].filename))
+                    removeProject(i);
+            }
+        }
+    }
+
     bool addDependencyProject(Project p) {
         for (int i = 0; i < _projects.length; i++) {
             if (_projects[i].filename.equal(p.filename)) {