name: "Setup Go Paths"
description: Overrides Go paths like GOCACHE and GOMODCACHE to use temporary directories.
outputs:
  gocache:
    description: "Value of GOCACHE"
    value: ${{ steps.paths.outputs.gocache }}
  gomodcache:
    description: "Value of GOMODCACHE"
    value: ${{ steps.paths.outputs.gomodcache }}
  gopath:
    description: "Value of GOPATH"
    value: ${{ steps.paths.outputs.gopath }}
  gotmp:
    description: "Value of GOTMPDIR"
    value: ${{ steps.paths.outputs.gotmp }}
  cached-dirs:
    description: "Go directories that should be cached between CI runs"
    value: ${{ steps.paths.outputs.cached-dirs }}
runs:
  using: "composite"
  steps:
    - name: Override Go paths
      id: paths
      uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7
      with:
        script: |
          const path = require('path');

          // RUNNER_TEMP should be backed by a RAM disk on Windows if
          // coder/setup-ramdisk-action was used
          const runnerTemp = process.env.RUNNER_TEMP;
          const gocacheDir = path.join(runnerTemp, 'go-cache');
          const gomodcacheDir = path.join(runnerTemp, 'go-mod-cache');
          const gopathDir = path.join(runnerTemp, 'go-path');
          const gotmpDir = path.join(runnerTemp, 'go-tmp');

          core.exportVariable('GOCACHE', gocacheDir);
          core.exportVariable('GOMODCACHE', gomodcacheDir);
          core.exportVariable('GOPATH', gopathDir);
          core.exportVariable('GOTMPDIR', gotmpDir);

          core.setOutput('gocache', gocacheDir);
          core.setOutput('gomodcache', gomodcacheDir);
          core.setOutput('gopath', gopathDir);
          core.setOutput('gotmp', gotmpDir);

          const cachedDirs = `${gocacheDir}\n${gomodcacheDir}`;
          core.setOutput('cached-dirs', cachedDirs);

    - name: Create directories
      shell: bash
      run: |
        set -e
        mkdir -p "$GOCACHE"
        mkdir -p "$GOMODCACHE"
        mkdir -p "$GOPATH"
        mkdir -p "$GOTMPDIR"