fix: exception if PR is from same repo

If a PR exists and base and head are from the same repo it seems that
the response["head"]["repo"] is set to None, causing exception when
the code runs.

This fixes that bug so that the CLI can fail gracefully (if a token
is not provided)

codecov_cli/helpers/git_services/github.py

@@ -22,7 +22,11 @@ def get_pull_request(self, slug, pr_number) -> PullDict:
                     "sha": res["head"]["sha"],
                     "label": res["head"]["label"],
                     "ref": res["head"]["ref"],
-                    "slug": res["head"]["repo"]["full_name"],
+                    # Through empiric test data it seems that the "repo" key in "head" is set to None
+                    # If the PR is from the same repo (e.g. not from a fork)
+                    "slug": res["head"]["repo"]["full_name"]
+                    if res["head"]["repo"]
+                    else res["base"]["repo"]["full_name"],
                 },
                 "base": {
                     "sha": res["base"]["sha"],

codecov_cli/services/commit/__init__.py

@@ -3,7 +3,7 @@
 
 from codecov_cli.helpers.config import CODECOV_API_URL
 from codecov_cli.helpers.encoder import decode_slug, encode_slug
-from codecov_cli.helpers.git import get_git_service, get_pull, is_fork_pr
+from codecov_cli.helpers.git import get_pull, is_fork_pr
 from codecov_cli.helpers.request import (
     get_token_header_or_fail,
     log_warnings_and_errors_if_any,