action.yml

name: 'Find unused Julia project dependencies'
description: 'Run a given test to see if any project dependencies are unused'
author: 'Ian Butterworth'

branding:
  icon: 'aperture'
  color: 'gray-dark'

inputs:
  test_code:
    description: 'Code to run while evaluating dependency usage'
    default: 'import Pkg; Pkg.test(julia_args=["--code-coverage=user"])'
    required: false
  prefix:
    description: 'Value inserted in front of the julia command, e.g. for running xvfb-run julia [...]'
    default: ''
    required: false
  project:
    description: 'Value passed to the --project flag. The default value is the repository root: "@."'
    default: '@.'
    required: false
  fail_unused_direct_deps:
    description: 'Whether to fail the run if unused direct dependencies ar found. Default value: yes'
    default: 'yes'
    required: false
  fail_unused_indirect_deps:
    description: 'Whether to fail the run if unused direct dependencies ar found. Default value: no'
    default: 'no'
    required: false

runs:
  using: 'composite'
  steps:
    - run: |
        # The Julia command that will be executed
        julia_cmd=( julia --code-coverage=user --color=yes --project=${{ inputs.project }} -e '${{ inputs.test_code }}' )

        # Add the prefix in front of the command if there is one
        prefix="${{ inputs.prefix }}"
        [[ -n $prefix ]] && julia_cmd=( "$prefix" "${julia_cmd[@]}" )

        # Run the Julia command
        "${julia_cmd[@]}"
      shell: bash
    - run: julia --color=yes --project=${{ inputs.project }} "$GITHUB_ACTION_PATH"/treeshake.jl --fail_unused_direct=${{ inputs.fail_unused_direct_deps }} --fail_unused_indirect=${{ inputs.fail_unused_indirect_deps }}
      shell: bash