Error install subworkflow with specific module

Description of the bug

I created a customized nf modules where it store common modules and subworkflows. The issue is that when I installed them in my pipeline, nf-core failed to solve the location of the package needed by subworkflows.

1 How to reproduce the issue

I have a module like this but I have a minor change by adding a subfolder below fastp module

fastp
└── trim
    ├── main.nf
    ├── meta.yml
    └── tests
        ├── main.nf.test
        └── tags.yml

Then add this module on a subworkflow. On your pipeline, install them by

nf-core subworkflows --git-remote <remote_url> install <subworkflow contain fastp>

It will show: ERROR: fastp but does not show anything else on log

2 What happen

After invesitgation, I found that the issue is on this line, where component_name is reconstructed by path after splitting by _. As a result, it will be failed if the name of the module does not match the convention
https://github.com/nf-core/tools/blob/main/nf_core/components/components_utils.py#L165-L166

def get_components_to_install(
    subworkflow_dir: str | Path,
) -> tuple[list[dict[str, str]], list[dict[str, str]]]:
    """
    Parse the subworkflow main.nf file to retrieve all imported modules and subworkflows.
    """
    modules: dict[str, dict[str, str]] = {}
    subworkflows: dict[str, dict[str, str]] = {}

    with open(Path(subworkflow_dir, "main.nf")) as fh:
        for line in fh:
            regex = re.compile(
                r"include(?: *{ *)([a-zA-Z\_0-9]*)(?: *as *)?(?:[a-zA-Z\_0-9]*)?(?: *})(?: *from *)(?:'|\")(.*)(?:'|\")"
            )
            match = regex.search(line)
            if match and len(match.groups()) == 2:
                name, link = match.groups()
                if link.startswith("../../../"):
                    name_split = name.lower().split("_")
                    component_name = "/".join(name_split)
                    component_dict: dict[str, str] = {
                        "name": component_name,
                    }
                    modules[component_name] = component_dict
                elif link.startswith("../"):
                    component_name = name.lower()
                    component_dict = {"name": component_name}
                    subworkflows[component_name] = component_dict

3. How to fix ?

There are 2 methods:

• Force to name the module by convention. In this case, it should be FASTP_TRIM. I used nf-core lint for this module but it does not show any error
• Modify the way to construct the component name

Command used and terminal output

System information

No response

Start in nf_core/components/components_utils.py, especially get_components_to_install and the component-name reconstruction around lines 165-166. Reproduce the issue with the shown nf-core subworkflows install command using a nested fastp/trim module. Done means installation resolves the nested module location instead of reporting only “ERROR: fastp”.