add a command to setup a workspace

fsprovider-sample/README.md

@@ -9,16 +9,9 @@ This extension implements an in-memory file system to show-case the [filesytem p
 To *get started* you need this:
 
 * install this extension
-* have a workspace-file as shown below and open it via 'File > Open Workspace'
+* when *not* having a workspace opened, select 'F1 > [MemFS] Setup Workspace' (optionally save the workspace now)
 * select 'F1 > [MemFs] Create Files' and notice how the explorer is now populated
 * ... try things out, e.g. IntelliSense in memfs-files, create new files, save them, etc
 * select 'F1 > [MemFs] Delete Files' or reload to restart
 
-A sample workspace file, saved as `Test.code-workspace`, is this:
-
-```json
-{
-  "uri": "memfs:/",
-  "name": "MemFS"
-}
-```
+![](./sample.png)

fsprovider-sample/package.json

@@ -15,11 +15,19 @@
         "Other"
     ],
     "activationEvents": [
-        "onFileSystem:memfs"
+        "onFileSystem:memfs",
+        "onCommand:memfs.workspaceInit",
+        "onCommand:memfs.init",
+        "onCommand:memfs.reset"
     ],
     "main": "./out/src/extension",
     "contributes": {
         "commands": [
+            {
+                "command": "memfs.workspaceInit",
+                "title": "Setup Workspace",
+                "category": "MemFS"
+            },
             {
                 "command": "memfs.init",
                 "title": "Create Files",
@@ -30,7 +38,23 @@
                 "title": "Delete Files",
                 "category": "MemFS"
             }
-        ]
+        ],
+        "menus": {
+            "commandPalette": [
+                {
+                    "command": "memfs.init",
+                    "when": "workbenchState == workspace"
+                },
+                {
+                    "command": "memfs.reset",
+                    "when": "workbenchState == workspace"
+                },
+                {
+                    "command": "memfs.workspaceInit",
+                    "when": "workbenchState != workspace"
+                }
+            ]
+        }
     },
     "scripts": {
         "vscode:prepublish": "npm run compile",

fsprovider-sample/src/extension.ts

@@ -6,6 +6,8 @@ import { MemFS } from './fileSystemProvider';
 
 export function activate(context: vscode.ExtensionContext) {
 
+    console.log('MemFS says "Hello"')
+
     const memFs = new MemFS();
     context.subscriptions.push(vscode.workspace.registerFileSystemProvider('memfs', memFs, { isCaseSensitive: true }));
     let initialized = false;
@@ -52,6 +54,10 @@ export function activate(context: vscode.ExtensionContext) {
         memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/def/foo.md`), Buffer.from('*MemFS*'), { create: true, overwrite: true });
         memFs.writeFile(vscode.Uri.parse(`memfs:/xyz/def/foo.bin`), Buffer.from([0, 0, 0, 1, 7, 0, 0, 1, 1]), { create: true, overwrite: true });
     }));
+
+    context.subscriptions.push(vscode.commands.registerCommand('memfs.workspaceInit', _ => {
+        vscode.workspace.updateWorkspaceFolders(0, 0, { uri: vscode.Uri.parse('memfs:/'), name: "MemFS - Sample" });
+    }));
 }
 
 function randomData(lineCnt: number, lineLen = 155): Buffer {