How to let renovate to update the gemspec by bundler

[tata9001]

Currently, we have bunch of repo which use the gemspec to manage the dependencies.

After few times test, seems renovate cannot support the gemspec pattern which the dependabot support.

Cannot understand what's meaning of the comment, renovate can support the gemspec? How?

[viceice]

renovate currently only supported updating Gemfile file.

Please provide a minimal reproduction so we can have a look. Maybe it's easy to implement.
https://github.com/renovatebot/renovate/blob/main/docs/development/minimal-reproductions.md#about-minimal-reproductions

[HonkingGoose]

I think @rarkins closed a issue which covers gemspec stuff as wontfix: #2983 (comment)

We don't currently have an open issue for gemspec, and I don't know if we want one. What do you think @rarkins?

[rarkins]

I would definitely like to parse gemspec files, but only using JS-based parsing and therefore they may need to confirm to "conventions" rather than being completely free of convention. Let's have a feature request issue to discuss it if we don't already

[tata9001]

@viceice Yep, you are right.
The part of the gemspec which mange the dependencies is here:

• add_development_dependency
• add_runtime_dependency(alias: add_dependency )

Here are some OSS repo.

• https://github.com/mdub/config_hound/blob/master/config_hound.gemspec
• https://github.com/realestate-com-au/stackup/blob/master/stackup.gemspec

BTW, you said a regex manager, how can write one?
Have you got any demo?

Thanks

[viceice]

Sure, in our official docs

https://docs.renovatebot.com/modules/manager/regex/

[HonkingGoose]

I've created issue #10616 to discuss the feature request to parse gemspec files.

[mpkorstanje]

An example of a Regex Manager that can be used to parse Gemspec files.

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "extends": [
    "config:base",
  ],
  "regexManagers": [
    {
      "fileMatch": [
        "^*.gemspec"
      ],
      "matchStrings": [
        ".*\\.add_(:?(?<depType>.*?)_)?dependency\\s*(['\"])(?<depName>[^'\"]+)(['\"])(\\s*,\\s*(?<currentValue>(['\"])[^'\"]+['\"](\\s*,\\s*['\"][^'\"]+['\"])?))?"
      ],
      "datasourceTemplate": "rubygems",
      "versioningTemplate": "ruby"
    }
  ]
}

[narwold]

The main issue with this is that it doesn't run bundle install afterwards, so that's a manual process for us.