fix: handle empty repository

public/partials/explorer.htm

@@ -28,12 +28,14 @@
             >Edit</a
           >
           <a
+            ng-show="content != null"
             ng-href="{{url}}"
             target="__self"
             class="btn btn-outline-primary btn-sm"
             >View raw</a
           >
           <a
+            ng-show="content != null"
             ng-href="{{url}}&download=true"
             target="__self"
             class="btn btn-outline-primary btn-sm"

public/partials/pageView.htm

@@ -9,4 +9,5 @@
 <div ng-if="type == 'IPython'"><notebook file="url"></notebook></div>
 <div ng-if="type == 'error'" class="file-error container d-flex h-100"><h1 class="display-1 m-auto" translate="ERRORS.{{content}}">Error</h1></div></div>
 <div ng-if="type == 'loading' && !error" class="file-error container d-flex h-100"><h1 class="display-1 m-auto">Loading...</h1></div></div>
-<div ng-if="content == null" class="file-error container d-flex h-100"><h1 class="display-1 m-auto">Empty file!</h1></div>
+<div ng-if="type == 'empty'" class="file-error container d-flex h-100"><h1 class="display-1 m-auto">Empty repository!</h1></div>
+<div ng-if="content == null && type != 'empty'" class="file-error container d-flex h-100"><h1 class="display-1 m-auto">Empty file!</h1></div>

public/script/app.js

@@ -1839,10 +1839,17 @@ angular
             const path = i > 0 ? $scope.paths.slice(0, i).join("/") : "";
             await $scope.getFiles(path);
           }
-          $scope.$apply(() => {
-            selectFile();
-            updateContent();
-          });
+          if ($scope.files.length == 1 && $scope.files[0].name == "") {
+            $scope.files = [];
+            $scope.type = "empty";
+            $scope.$apply();
+          } else {
+
+            $scope.$apply(() => {
+              selectFile();
+              updateContent();
+            });
+          }
         });
       }
 

src/core/Repository.ts

@@ -402,10 +402,19 @@ export default class Repository {
     }
     this.model.increment();
     await this.updateStatus(RepositoryStatus.DOWNLOAD);
-    await this.files({
+    const files = await this.files({
       force: false,
       progress,
     });
+    if (files.length === 0) {
+      // create a dummy file when the repo is empty to avoid errors
+      await new FileModel({
+        repoId: this.repoId,
+        path: "",
+        name: "",
+        size: 0,
+      }).save();
+    }
     await this.updateStatus(RepositoryStatus.READY);
     await this.computeSize();
     span.end();

src/core/source/GitHubStream.ts

@@ -194,11 +194,16 @@ export default class GitHubStream extends GitHubBase {
         });
         output.push(...this.tree2Tree(data.tree, parentPath));
       } catch (error) {
-        throw new AnonymousError("files_not_found", {
-          httpStatus: 404,
-          object: this.data,
-          cause: error as Error,
-        });
+        if ((error as any).status == 404) {
+          // empty repo
+          data = { tree: [] };
+        } else {
+          throw new AnonymousError("repo_not_found", {
+            httpStatus: (error as any).status || 404,
+            object: this.data,
+            cause: error as Error,
+          });
+        }
       }
       const promises: Promise<any>[] = [];
       const parentPaths: string[] = [];

src/streamer/route.ts

@@ -25,6 +25,7 @@ router.post("/", async (req: express.Request, res: express.Response) => {
     commit: commit,
     getToken: () => token,
   });
+  console.log(`[FILE] ${repoId}/${filePath}`);
   const content = await source.getFileContentCache(
     filePath,
     repoId,