From cc20eb4a3811074eaee66c47a6c6c262db129543 Mon Sep 17 00:00:00 2001
From: "sentry[bot]" <39604003+sentry[bot]@users.noreply.github.com>
Date: Sat, 22 Aug 2026 02:27:39 +0000
Subject: [PATCH] fix: prevent ValueError when slug is missing in upload

---
 codecov_cli/services/upload/__init__.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/codecov_cli/services/upload/__init__.py b/codecov_cli/services/upload/__init__.py
index 2793c3924..f40b76ea9 100644
--- a/codecov_cli/services/upload/__init__.py
+++ b/codecov_cli/services/upload/__init__.py
@@ -6,6 +6,7 @@
 
 from codecov_cli.fallbacks import FallbackFieldEnum
 from codecov_cli.helpers.ci_adapters.base import CIAdapterBase
+from codecov_cli.helpers.encoder import slug_with_subgroups_is_invalid
 from codecov_cli.helpers.request import log_warnings_and_errors_if_any
 from codecov_cli.helpers.versioning_systems import VersioningSystemInterface
 from codecov_cli.helpers.upload_type import ReportType
@@ -64,6 +65,11 @@ def do_upload_logic(
     report_type: ReportType = ReportType.COVERAGE,
     use_legacy_uploader: bool = False,
 ):
+    if not slug or slug_with_subgroups_is_invalid(slug):
+        raise click.ClickException(
+            "Slug is required but was not provided or is invalid. "
+            "Please provide it via the --slug option in the format 'owner/repo'."
+        )
     plugin_config = {
         "folders_to_ignore": files_search_exclude_folders,
         "gcov_args": gcov_args,