action.yml

name: Build Julia
description: Build Julia from source for a given commit.
author: Sascha Mann

branding:
  icon: cpu
  color: purple

inputs:
  ref:
    description: Value passed to git checkout.
    default: master
    required: false
  source-repo:
    description: Value passed to git clone.
    default: https://github.com/JuliaLang/julia.git
    required: false
  target-dir:
    description: Directory that Julia will be installed in
    default: $HOME/julia
    required: false

runs:
  using: composite
  steps:
    - name: Clone Julia
      run: git clone ${{ inputs.source-repo }} "${{ inputs.target-dir }}"
      shell: bash

    - name: Checkout ref
      run: |
        cd "${{ inputs.target-dir }}"
        git checkout ${{ inputs.ref }}
      shell: bash

    - name: Build Julia
      run: |
        cd "${{ inputs.target-dir }}"

        # GHA runners don't all run on the same hardware
        # Not specifying a CPU target can lead to issues when caching the build output
        echo "JULIA_CPU_TARGET=x86_64" >> Make.user

        make -j 2
      shell: bash

    - name: Print Version
      run: |
        cd "${{ inputs.target-dir }}"
        ./julia --version
      shell: bash