Fixing getProjectId error message to be more descriptive

Signed-off-by: Joshua Jung <joshua.p.jung@gmail.com>

.changeset/rude-apricots-eat.md

@@ -0,0 +1,6 @@
+---
+'@backstage/backend-defaults': patch
+'@backstage/integration': patch
+---
+
+Updating error message for getProjectId when fetching Gitlab project from its url to be more accurate

packages/backend-defaults/src/entrypoints/urlReader/lib/GitlabUrlReader.test.ts

@@ -697,7 +697,9 @@ describe('GitlabUrlReader', () => {
         (gitlabProcessor as any).getGitlabFetchUrl(
           'https://gitlab.com/some/random/endpoint',
         ),
-      ).rejects.toThrow('Please provide full path to yaml file from GitLab');
+      ).rejects.toThrow(
+        'Failed converting /some/random/endpoint to a project id. Url path must include /blob/.',
+      );
     });
   });
 

packages/integration/src/gitlab/core.ts

@@ -116,7 +116,9 @@ export async function getProjectId(
   const url = new URL(target);
 
   if (!url.pathname.includes('/blob/')) {
-    throw new Error('Please provide full path to yaml file from GitLab');
+    throw new Error(
+      `Failed converting ${url.pathname} to a project id. Url path must include /blob/.`,
+    );
   }
 
   try {