Ability to download select languages

[MajesticPotatoe]

Is your feature request related to a problem? Please describe. From what I can tell at the moment you have one of 2 options: download all languages, or download a single language. This Feature would allow someone to specify a list of languages to download (akin to export_languages configuration property for VCS)

Describe the solution you'd like Config property for downloading select languages something like

export_languages:
  - eo
  - en
  - ko

Describe alternatives you've considered Right now I've done a multi-step approach (same step, just changing the single language) However i can only get this to work if using a separate branch for each language as actions throws an error fatal: A branch named '<insertBranchNameHere>' already exists. (which may merit a bug report)

Additional context Open to other thoughts and ideas

Edit: to get around the branch checkout error, seems that you need to use push_translations: false on all steps except the last one. Not the greatest workaround but is doable.

[andrii-bodnar]

In the CLI v3.9.0 we've added the possibility to build multiple languages simultaneously:

crowdin pull -l uk -l fr -l de

I would suggest renaming the existing parameter download_language -> download_languages, but keep the backward compatibility for older configs.

The new parameter download_languages should be able to receive language codes separated by a comma:

download_languages: 'uk,fr,de'

or single language as before:

download_languages: 'uk'

Also, it should be valid without quotes:

download_languages: uk,fr,de

[andrii-bodnar]

Can be achieved via download_translations_args