Add datetime formatting capability to variable set task

.gitignore

@@ -200,3 +200,4 @@ _Pvt_Extensions
 /.cr
 /*/v[0-9]/*.js
 /*/v[0-9]/*.js.map
+./*/v[0-9]/*.tsbuildinfo

vsts-variable-set/v1/tsconfig.tsbuildinfo

@@ -0,0 +1 @@
+{"root":["./vsts-variable-set.ts"],"version":"5.8.3"}

vsts-variable-set/v2/tsconfig.tsbuildinfo

@@ -0,0 +1 @@
+{"root":["./vsts-variable-set.ts"],"version":"5.8.3"}

vsts-variable-set/v3/task.json

@@ -59,7 +59,8 @@
       "type": "pickList",
       "options": {
         "value": "value",
-        "env": "env"
+        "env": "env",
+        "datetime": "current date/time"
       }      
     },
     {
@@ -82,6 +83,15 @@
       "aliases": ["Env", "Environment"],
       "visibleRule": "From=env"
     },
+    {
+      "defaultValue": "yyyy-MM-dd HH:mm:ss",
+      "helpMarkdown": "Format string for the current date and time. Supported patterns: yyyy (4-digit year), yy (2-digit year), MM (2-digit month), dd (2-digit day), HH (24-hour), hh (12-hour), mm (minute), ss (second), tt (AM/PM). Example: 'yyyy-MM-dd HH:mm:ss' produces '2023-12-25 14:30:00'.",
+      "label": "Date/Time Format",
+      "name": "DateTimeFormat",
+      "required": true,
+      "type": "string",
+      "visibleRule": "From=datetime"
+    },
     {
       "defaultValue": false,
       "helpMarkdown": "Save variable as a secret.",

vsts-variable-set/v3/tsconfig.tsbuildinfo

@@ -0,0 +1 @@
+{"root":["./vsts-variable-set.ts"],"version":"5.8.3"}

vsts-variable-set/v3/vsts-variable-set.ts

@@ -2,6 +2,47 @@
 
 const variable = tl.getInput("VariableName", true);
 
+function formatDateTime(format: string): string {
+    const now = new Date();
+
+    // Simple and robust approach - only support explicit multi-character patterns
+    // This avoids conflicts with single characters in normal text
+    let formatted = format;
+
+    // Year patterns
+    formatted = formatted.replace(/yyyy/g, now.getFullYear().toString());
+    formatted = formatted.replace(/yy/g, now.getFullYear().toString().slice(-2));
+
+    // Month patterns (2-digit and single digit with leading zero requirement)
+    const month = (now.getMonth() + 1).toString().padStart(2, '0');
+    formatted = formatted.replace(/MM/g, month);
+
+    // Day patterns
+    const day = now.getDate().toString().padStart(2, '0');
+    formatted = formatted.replace(/dd/g, day);
+
+    // Hour 24-hour patterns
+    const hour = now.getHours().toString().padStart(2, '0');
+    formatted = formatted.replace(/HH/g, hour);
+
+    // Hour 12-hour patterns  
+    const hour12 = (now.getHours() % 12 || 12).toString().padStart(2, '0');
+    formatted = formatted.replace(/hh/g, hour12);
+
+    // Minute patterns
+    const minute = now.getMinutes().toString().padStart(2, '0');
+    formatted = formatted.replace(/mm/g, minute);
+
+    // Second patterns
+    const second = now.getSeconds().toString().padStart(2, '0');
+    formatted = formatted.replace(/ss/g, second);
+
+    // AM/PM patterns
+    formatted = formatted.replace(/tt/g, now.getHours() >= 12 ? 'PM' : 'AM');
+
+    return formatted;
+}
+
 function getValue()
 {
     const from = tl.getInput("From") || "value";
@@ -15,6 +56,11 @@ function getValue()
         {
             return process.env[tl.getInput("Env", true)];
         }
+        case "datetime":
+        {
+            const format = tl.getInput("DateTimeFormat", true) || "yyyy-MM-dd HH:mm:ss";
+            return formatDateTime(format);
+        }
         default:
         {
             return "";

vsts-variable-transform/v1/tsconfig.tsbuildinfo

@@ -0,0 +1 @@
+{"root":["./vsts-variable-transform.ts"],"version":"5.8.3"}

vsts-variable-transform/v2/tsconfig.tsbuildinfo

@@ -0,0 +1 @@
+{"root":["./vsts-variable-transform.ts"],"version":"5.8.3"}

vsts-variable-transform/v3/tsconfig.tsbuildinfo

@@ -0,0 +1 @@
+{"root":["./vsts-variable-transform.ts"],"version":"5.8.3"}