add license metadata tag

resources/extension.vsixmanifest

@@ -6,6 +6,7 @@
     <Description xml:space="preserve">${ description }</Description>
     <Tags>${ tags }</Tags>
     <GalleryFlags>Public</GalleryFlags>
+    <% if (license) { %><License>${ license }</License><% } %>
   </Metadata>
   <Installation>
     <InstallationTarget Id="Microsoft.VisualStudio.Code"/>

src/package.ts

@@ -102,17 +102,19 @@ function getLicenseFilter(manifest:Manifest): (name: string) => boolean {
 export function toVsixManifest(manifest: Manifest, files: IFile[]): Promise<string> {
 	const licenseFilter = getLicenseFilter(manifest);
 	
-	const assets = files.map<IAsset>(f => {
+	const assets: IAsset[] = [];
+	let license: string = null;
+	
+	files.forEach(f => {
 		if (/^extension\/README.md$/i.test(f.path)) {
-			return { type: 'Microsoft.VisualStudio.Services.Content.Details', path: f.path };
+			assets.push({ type: 'Microsoft.VisualStudio.Services.Content.Details', path: f.path });
 		}
 		
 		if (licenseFilter(f.path)) {
-			return { type: 'Microsoft.VisualStudio.Services.Content.License', path: f.path };
+			assets.push({ type: 'Microsoft.VisualStudio.Services.Content.License', path: f.path });
+			license = f.path;
 		}
-		
+	});
-		return null;
-	}).filter(f => !!f);
 	
 	return readFile(vsixManifestTemplatePath, 'utf8')
 		.then(vsixManifestTemplateStr => _.template(vsixManifestTemplateStr))
@@ -123,6 +125,7 @@ export function toVsixManifest(manifest: Manifest, files: IFile[]): Promise<stri
 			publisher: manifest.publisher,
 			description: manifest.description || '',
 			tags: (manifest.keywords || []).concat('vscode').join(';'),
+			license,
 			assets
 		}));
 }

src/test/package.test.ts

@@ -134,6 +134,29 @@ describe('toVsixManifest', () => {
 				assert.equal(result.PackageManifest.Assets[0].Asset[1].$.Path, 'extension/thelicense.md');
 			});
 	});
+	
+	it('should add a license metadata tag', () => {
+		const manifest = {
+			name: 'test',
+			publisher: 'mocha',
+			version: '0.0.1',
+			description: 'test extension',
+			license: 'SEE LICENSE IN thelicense.md',
+			engines: Object.create(null)
+		};
+		
+		const files = [
+			{ path: 'extension/thelicense.md' }
+		];
+		
+		return toVsixManifest(manifest, files)
+			.then(xml => parseXml(xml))
+			.then(result => {
+				assert.ok(result.PackageManifest.Metadata[0].License);
+				assert.equal(result.PackageManifest.Metadata[0].License.length, 1);
+				assert.equal(result.PackageManifest.Metadata[0].License[0], 'extension/thelicense.md');
+			});
+	});
 });
 
 describe('toContentTypes', () => {