Use extname

Signed-off-by: sblausten <sam@roadie.io>

plugins/catalog-backend-module-github/src/analyzers/GithubLocationAnalyzer.test.ts

@@ -162,4 +162,30 @@ describe('GithubLocationAnalyzer', () => {
       target: 'https://github.com/foo/bar/blob/my_default_branch/anvil.yaml',
     });
   });
+
+  it('should use the provided entity file extension in search query only if present', async () => {
+    octokit.search.code.mockImplementation((opts: { q: string }) => {
+      if (opts.q === 'filename:.gitignore  repo:foo/bar') {
+        return Promise.resolve({
+          data: { items: [{ path: '.gitignore' }], total_count: 1 },
+        });
+      }
+      return Promise.reject();
+    });
+
+    const analyzer = new GithubLocationAnalyzer({
+      discovery: mockDiscoveryApi,
+      auth: mockAuthService,
+      config,
+    });
+    const result = await analyzer.analyze({
+      url: 'https://github.com/foo/bar',
+      catalogFilename: '.gitignore',
+    });
+
+    expect(result.existing[0].location).toEqual({
+      type: 'url',
+      target: 'https://github.com/foo/bar/blob/my_default_branch/.gitignore',
+    });
+  });
 });

plugins/catalog-backend-module-github/src/analyzers/GithubLocationAnalyzer.ts

@@ -78,7 +78,9 @@ export class GithubLocationAnalyzer implements ScmLocationAnalyzer {
 
     const catalogFile = catalogFilename || 'catalog-info.yaml';
     const extension = extname(catalogFile);
-    const extensionQuery = !isEmpty(extension) ? `extension:${extension}` : '';
+    const extensionQuery = !isEmpty(extension)
+      ? `extension:${extension.replace('.', '')}`
+      : '';
 
     const query = `filename:${catalogFile} ${extensionQuery} repo:${owner}/${repo}`;