customManagers with enabledManagers

[S73FAIV]

How are you running Renovate?

Self-hosted Renovate

If you're self-hosting Renovate, tell us what version of Renovate you run.

37.64.2

If you're self-hosting Renovate, select which platform you are using.

GitLab self-hosted

Was this something which used to work for you, and then stopped?

I have not seen this working

Describe the problem

I have a special use case, where I want to use only a custom regex manager with renovate.

For this I defined my custom manager as documented:

"customManagers": [
    {
      "customType": "regex",
      "fileMatch": [
        ".*\\/some-file-names\\.ya?ml$"
      ],
      "matchStrings": [
        "^# renovate: datasource=(?<datasource>[a-z-.]+?) depName=(?<depName>[^\\s]+?)(?: (lookupName|packageName)=(?<packageName>[^\\s]+?))?(?: versioning=(?<versioning>[^\\s]+?))?(?: registryUrl=(?<registryUrl>[^\\s]+?))?\\s*.*\\s*(version|tag): \\s*?(?<currentValue>.+?)?$"
      ]
    }

and used the "enabledManagers": ["custom.regex"], to let renovate only use the created custom manager.

But this leads to some irritating behavior, as seen in the logs.
The fileMatch works just fine and finds the files I tell him to, but afterwords, he doesn't extract the dependencies.
I checked the matchStrings regex multiple times and there doesn't seem to be an error either.

What would be a viable configuration to achieve the same result?

Relevant debug logs

Logs

DEBUG: Using file match: .*\/\.ya?ml$ for manager regex
DEBUG: Matched 12 file(s) for manager regex: ..omitted...
DEBUG: manager extract durations (ms) 
       "managers": {"regex": 3}
DEBUG: Found 0 package file(s)
DEBUG: Manager explicitly enabled in "enabledManagers" config, but found no results. Possible config error? 
       "manager": "custom.regex"
 INFO: Dependency extraction complete 
       "stats": {"managers": {}, "total": {"fileCount": 0, "depCount": 0}}

Have you created a minimal reproduction repository?

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[S73FAIV]

Does this maybe have a connection to the still open points in this issue: #19066 ?

[rarkins]

Seems to be, please try "custom" or "regex" for now

[S73FAIV]

I provided all enbaledManagers as CLI-Options, because otherwise regex would be migrated to custom.regex

So with renovate --dry-run --enabled-managers "regex","custom","custom.regex"

I get the following config: "enabledManagers": ["regex", "custom", "custom.regex"],

With the same behavior as before:

DEBUG: Using file match: .*\/.*\.ya?ml$ for manager regex
DEBUG: Matched 12 file(s) for manager regex: **omitted**
DEBUG: manager extract durations (ms)
       "managers": {"regex": 4}
DEBUG: Found 0 package file(s) 
DEBUG: Manager explicitly enabled in "enabledManagers" config, but found no results. Possible config error? 
       "manager": "regex"
DEBUG: Manager explicitly enabled in "enabledManagers" config, but found no results. Possible config error? 
       "manager": "custom"
DEBUG: Manager explicitly enabled in "enabledManagers" config, but found no results. Possible config error? 
       "manager": "custom.regex"
 INFO: Dependency extraction complete

[S73FAIV]

Ah, I have to apologize! The error was on my side, my matchString regex was faulty, which lead to the error encountered.
The enabledManagers works fine with customManager in the first suggested Version
"enabledManagers": ["custom.regex"]

Thank you very much for your support nevertheless.