gc: add --skip-failed

tests/func/test_gc.py

@@ -7,7 +7,7 @@ import textwrap
 import pytest
 
 from dvc.cli import main
-from dvc.exceptions import CollectCacheError, InvalidArgumentError
+from dvc.exceptions import CollectCacheError, InvalidArgumentError, RevCollectionError
 from dvc.fs import LocalFileSystem
 from dvc.utils.fs import remove
 from dvc_data.hashfile.db.local import LocalHashFileDB
@@ -439,3 +439,13 @@ def test_gc_logging(caplog, dvc, good_and_bad_cache):
     assert "Removed 3 objects from repo cache." in caplog.text
     assert "No unused 'local' cache to remove." in caplog.text
     assert "No unused 'legacy' cache to remove." in caplog.text
+
+
+def test_gc_skip_failed(tmp_dir, dvc):
+    with open("dvc.yaml", mode="w") as f:
+        f.write("\ninvalid")
+
+    with pytest.raises(RevCollectionError):
+        dvc.gc(force=True, workspace=True)
+
+    dvc.gc(force=True, workspace=True, skip_failed=True)

tests/unit/command/test_gc.py

@@ -26,6 +26,7 @@ def test_(dvc, scm, mocker):
             "--projects",
             "project1",
             "project2",
+            "--skip-failed",
         ]
     )
     assert cli_args.func == CmdGC
@@ -51,6 +52,7 @@ def test_(dvc, scm, mocker):
         num=None,
         not_in_remote=False,
         dry=True,
+        skip_failed=True,
     )
 
     cli_args = parse_args(["gc"])