Action

A GitHub Action that outputs the repositories languages using List repository languages.

Usage

Create a workflow (eg: .github/workflows/seat-count.yml). See Creating a Workflow file.

Example Basic

Print all the languages as a comma separated list.

name: Print Languages
on:
  workflow_dispatch:

jobs:
  run:
    runs-on: ubuntu-latest
    steps:
      - uses: austenstone/list-repository-languages@main
        id: list-languages
      - run: echo ${{ join(fromJSON(steps.list-languages.outputs.languages), ', ') }}

Example Matrix

Run a a matrix of jobs for each language.

name: Matrix Language Jobs
on:
  workflow_dispatch:

jobs:
  run:
    runs-on: ubuntu-latest
    steps:
      - uses: austenstone/list-repository-languages@main
        id: list-languages
    outputs:
      languages: ${{ steps.list-languages.outputs.languages }}

  print:
    needs: [run]
    runs-on: ubuntu-latest
    strategy:
      matrix:
        language: ${{ fromJSON(needs.run.outputs.languages) }}
    steps:
      - run: echo ${{ matrix.language }}

CodeQL

You can use the input codeql to map languages to codeql supported languages. example.

      - uses: austenstone/list-repository-languages@main
        id: list-languages
        with:
          codeql: 'true'

➡️ Inputs

Various inputs are defined in action.yml:

Name	Description	Default
github‑token	Token to use to authorize.	${{ github.token }}
owner	The repository owner	${{ github.repository_owner }}
repo	The repository name	${{ github.event.repository.name }}
codeql	Map to langauges supported by codeql	false

⬅️ Outputs

Name	Description
languages	The languages of the repository as a JSON array

Further help

To get more help on the Actions see documentation.

austenstone / list-repository-languages