fix(datasource/go): private repositories on azure (#26984)

Co-authored-by: Rhys Arkins <rhys@arkins.net>

lib/modules/datasource/go/base.spec.ts

@@ -22,6 +22,8 @@ describe('modules/datasource/go/base', () => {
       ${'github.com/foo/bar'}                 | ${'github-tags'}    | ${'foo/bar'}
       ${'bitbucket.org/foo/bar'}              | ${'bitbucket-tags'} | ${'foo/bar'}
       ${'code.cloudfoundry.org/lager'}        | ${'github-tags'}    | ${'cloudfoundry/lager'}
+      ${'dev.azure.com/foo/bar/_git/baz.git'} | ${'git-tags'}       | ${'https://dev.azure.com/foo/bar/_git/baz'}
+      ${'dev.azure.com/foo/bar/baz.git'}      | ${'git-tags'}       | ${'https://dev.azure.com/foo/bar/_git/baz'}
     `(
       '$module -> $datasource: $packageName',
       async ({ module, datasource, packageName }) => {
@@ -347,21 +349,31 @@ describe('modules/datasource/go/base', () => {
 
       it('handles go-import with azure devops source', async () => {
         const meta =
-          '<meta name="go-import" content="dev.azure.com/my-organization/my-project/_git/my-repo.git git https://dev.azure.com/my-organization/my-project/_git/my-repo.git" />';
+          '<meta name="go-import" content="org.visualstudio.com/my-project/_git/my-repo.git git https://org.visualstudio.com/my-project/_git/my-repo.git" />';
         httpMock
-          .scope('https://dev.azure.com')
-          .get('/my-organization/my-project/_git/my-repo.git?go-get=1')
+          .scope('https://org.visualstudio.com')
+          .get('/my-project/_git/my-repo.git?go-get=1')
           .reply(200, meta);
-
         const res = await BaseGoDatasource.getDatasource(
-          'dev.azure.com/my-organization/my-project/_git/my-repo.git',
+          'org.visualstudio.com/my-project/_git/my-repo.git',
         );
-
         expect(res).toEqual({
           datasource: GitTagsDatasource.id,
-          packageName:
-            'https://dev.azure.com/my-organization/my-project/_git/my-repo',
+          packageName: 'https://org.visualstudio.com/my-project/_git/my-repo',
+        });
       });
+
+      it('returns null for invalid azure devops source', async () => {
+        httpMock
+          .scope('https://dev.azure.com')
+          .get('/foo/bar.git?go-get=1')
+          .reply(200);
+
+        const res = await BaseGoDatasource.getDatasource(
+          'dev.azure.com/foo/bar.git',
+        );
+
+        expect(res).toBeNull();
       });
 
       it('handles uncommon imports', async () => {

lib/modules/datasource/go/base.ts

@@ -71,6 +71,26 @@ export class BaseGoDatasource {
       };
     }
 
+    if (goModule.startsWith('dev.azure.com/')) {
+      const split = goModule.split('/');
+      if ((split.length > 4 && split[3] === '_git') || split.length > 3) {
+        const packageName =
+          'https://dev.azure.com/' +
+          split[1] +
+          '/' +
+          split[2] +
+          '/_git/' +
+          (split[3] === '_git' ? split[4] : split[3]).replace(
+            regEx(/\.git$/),
+            '',
+          );
+        return {
+          datasource: GitTagsDatasource.id,
+          packageName,
+        };
+      }
+    }
+
     return await BaseGoDatasource.goGetDatasource(goModule);
   }