Added variable substitution commands

README.md

@@ -24,13 +24,66 @@ Following commands are available:
 - `Insert Timestamp` - Inserts current timestamp in milliseconds at the cursor position.
 - `Insert Formatted DateTime` (<kbd>⇧</kbd>+<kbd>⌘</kbd>+<kbd>⌥</kbd>+<kbd>I</kbd> on OS X, <kbd>Ctrl</kbd>+<kbd>Alt</kbd>+<kbd>Shift</kbd>+<kbd>I</kbd> on Windows and Linux) - Prompt user for format and insert formatted date and/or time at the cursor position.
 
+Each command is also available as a variable expansion, which is particularly useful for [task input variables](https://code.visualstudio.com/docs/editor/variables-reference#_input-variables).
+
+- `insertDateString.getDateTime` - Returns current date and/or time according to configured format (`format`).
+- `insertDateString.getDate` - Returns current date according to configured format (`formatDate`).
+- `insertDateString.getTime` - Returns current time according to configured format (`formatTime`).
+- `insertDateString.getTimestamp` - Returns current timestamp in milliseconds.
+- `insertDateString.getOwnFormatDateTime` - Returns formatted date and/or time according to provided format.
+
+``` json
+{
+	"version": "2.0.0",
+	"tasks": [
+		{
+			"label": "print default datetime",
+			"type": "shell",
+			"command": "echo",
+			"args": ["${input:dateTime}"]
+		},
+		{
+			"label": "print custom datetime",
+			"type": "shell",
+			"command": "echo",
+			"args": ["${input:formatDateTime}"]
+		},
+		{
+			"label": "print prompted datetime",
+			"type": "shell",
+			"command": "echo",
+			"args": ["${input:promptedDateTime}"]
+		}
+	],
+	"inputs": [
+		{
+			"id": "dateTime",
+			"type": "command",
+			"command": "insertDateString.getDateTime"
+		},
+		{
+			"id": "formatDateTime",
+			"type": "command",
+			"command": "insertDateString.getOwnFormatDateTime",
+			"args": "hh:mm:ss YYYY-MM-DD"
+		},
+		{
+			"id": "promptedDateTime",
+			"type": "command",
+			"command": "insertDateString.getOwnFormatDateTime"
+			// notice lack of args here
+		}
+	]
+}
+```
+
 ## Available settings
 
 - Date and time format string (_this affects `Insert DateTime` output_):
 - Date format string (_this affects `Insert Date` output_):
 - Time format string (_this affects `Insert Time` output_):
 
-```
+``` json
 // Date format to be used.
 "insertDateString.format": "YYYY-MM-DD hh:mm:ss",
 "insertDateString.formatDate": "YYYY-MM-DD",

package.json

@@ -51,7 +51,12 @@
     "onCommand:insertDateString.insertDate",
     "onCommand:insertDateString.insertTime",
     "onCommand:insertDateString.insertTimestamp",
-    "onCommand:insertDateString.insertOwnFormatDateTime"
+    "onCommand:insertDateString.insertOwnFormatDateTime",
+    "onCommand:insertDateString.getDateTime",
+    "onCommand:insertDateString.getDate",
+    "onCommand:insertDateString.getTime",
+    "onCommand:insertDateString.getTimestamp",
+    "onCommand:insertDateString.getOwnFormatDateTime"
   ],
   "categories": [
     "Other",
@@ -127,4 +132,4 @@
     "color": "#005696",
     "theme": "dark"
   }
-}
+}

src/extension.ts

@@ -32,6 +32,7 @@ function replaceEditorSelection(text: string) {
 }
 
 export function activate(context: ExtensionContext): void {
+  // User-facing commands (exposed in contributions)
   context.subscriptions.push(
     commands.registerCommand("insertDateString.insertDateTime", () =>
       replaceEditorSelection(getFormattedDateString())
@@ -61,15 +62,59 @@ export function activate(context: ExtensionContext): void {
   );
 
   context.subscriptions.push(
-    commands.registerCommand("insertDateString.insertOwnFormatDateTime", () => {
-      window
-        .showInputBox({
+    commands.registerCommand("insertDateString.insertOwnFormatDateTime", async () => {
+      const format = await window.showInputBox({
+        value: getConfiguredFormat(),
+        prompt: INPUT_PROMPT,
+      });
+
+      if (format != null) {
+        replaceEditorSelection(getFormattedDateString(format));
+      }
+    })
+  );
+
+  // Can be used in task inputs and other variable substitutions
+  context.subscriptions.push(
+    commands.registerCommand("insertDateString.getDateTime", () => {
+      return getFormattedDateString();
+    })
+  );
+
+  context.subscriptions.push(
+    commands.registerCommand("insertDateString.getDate", () => {
+      return getFormattedDateString(getConfiguredFormat("formatDate"));
+    })
+  );
+
+  context.subscriptions.push(
+    commands.registerCommand("insertDateString.getTime", () => {
+      return getFormattedDateString(getConfiguredFormat("formatTime"));
+    })
+  );
+
+  context.subscriptions.push(
+    commands.registerCommand("insertDateString.getTimestamp", () => {
+      return new Date().getTime().toString();
+    })
+  );
+
+  context.subscriptions.push(
+    commands.registerCommand("insertDateString.getOwnFormatDateTime", async format => {
+      if (format != null) {
+        return getFormattedDateString(format);
+      } else {
+        const format = await window.showInputBox({
           value: getConfiguredFormat(),
           prompt: INPUT_PROMPT,
-        })
-        .then((format) => {
-          replaceEditorSelection(getFormattedDateString(format));
         });
+
+        if (format != null) {
+          return getFormattedDateString(format);
+        } else {
+          return undefined;
+        }
+      }
     })
   );
 }