nf-core lint - ValueError: not enough values to unpack (expected 2, got 1)

Description of the bug

Running nf-core lint on a workflow where the config file does not have a "manifest.name" section results in a ValueError from nf-core.

Seems like the fallback value for the missing section is an empty string which can't be split into two values. From nf_core.utils line 180:

self.pipeline_prefix, self.pipeline_name = self.nf_config.get("manifest.name", "").strip("'").split("/")

Command used and terminal output

$ nf-core lint
...
venv/lib/python3.9/site-packages/nf_core/utils.py:18 │
│ 0 in _load_pipeline_config                                                                       │
│                                                                                                  │
│    177 │   │   """                                                                               │
│    178 │   │   self.nf_config = fetch_wf_config(self.wf_path)                                    │
│    179 │   │                                                                                     │
│ ❱  180 │   │   self.pipeline_prefix, self.pipeline_name = self.nf_config.get("manifest.name", "  │
│    181 │   │                                                                                     │
│    182 │   │   nextflowVersionMatch = re.search(r"[0-9\.]+(-edge)?", self.nf_config.get("manife  │
│    183 │   │   if nextflowVersionMatch:                                                          │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
ValueError: not enough values to unpack (expected 2, got 1)

System information

• Nextflow version 20.10.0
• OS CentOS 7
• Version of nf-core/tools 2.10
• Python version 3.9.2

Start in nf_core/utils.py at line 180, where _load_pipeline_config splits the manifest.name fallback, and reproduce the failure with nf-core lint on a workflow missing that section. Ensure the missing configuration no longer raises this ValueError, then rerun the reported command to verify the behavior.