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path: root/.github/workflows/linux_luajit.yml
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name: Linux (Luajit)

on:
  pull_request:
  push:
  release:
    types: [published]

jobs:
  check:
    runs-on: ubuntu-latest
    outputs:
      should-run: ${{ steps.check.outputs.should-run }}
    steps:
      - name: Random execution check
        id: check
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const outputFile = process.env.GITHUB_OUTPUT;
            
            // Always run for release events
            if (context.eventName === 'release') {
              fs.appendFileSync(outputFile, `should-run=true\n`);
              core.info('Release event detected. Will run tests.');
              return;
            }
            
            // Execution probability (default 20%, can be overridden via env)
            const probability = parseFloat(process.env.RUN_PROBABILITY || '0.2');
            
            // Generate deterministic "random" number based on commit SHA, run ID, and current time
            // Adding time ensures better randomness while keeping same commit/run consistent
            const timeSeed = Math.floor(Date.now() / (1000 * 60 * 60)); // Round to hour for consistency
            const seed = context.sha + context.runId + timeSeed;
            let hash = 0;
            for (let i = 0; i < seed.length; i++) {
              const char = seed.charCodeAt(i);
              hash = ((hash << 5) - hash) + char;
              hash = hash | 0; // Convert to 32-bit integer
            }
            // Normalize to 0-1 range
            const random = Math.abs(hash) / 2147483647;
            const shouldRun = random < probability;
            
            // Use environment file instead of deprecated set-output
            fs.appendFileSync(outputFile, `should-run=${shouldRun}\n`);
            if (shouldRun) {
              core.info(`Random check passed (${(random * 100).toFixed(2)}% < ${(probability * 100).toFixed(0)}%). Will run tests.`);
            } else {
              core.info(`Random check failed (${(random * 100).toFixed(2)}% >= ${(probability * 100).toFixed(0)}%). Skipping.`);
            }
        env:
          RUN_PROBABILITY: ${{ vars.LINUX_LUAJIT_RUN_PROBABILITY || '0.2' }}

  build:
    needs: check
    if: needs.check.outputs.should-run == 'true'
    runs-on: ubuntu-latest
    concurrency:
        # Prevent concurrent runs of the same workflow
        group: ${{ github.ref }}-${{ github.base_ref }}-${{ github.head_ref }}-Linux-Luajit
        cancel-in-progress: true
    steps:
      - uses: actions/checkout@v2
        with:
          submodules: true
      - uses: dlang-community/setup-dlang@v1
        with:
          compiler: dmd-latest
      - uses: little-core-labs/[email protected]
        id: tagName

      - name: Installation
        run: |
          ./configure --runtime=luajit
          make -j`nproc`
          ./scripts/get.sh __local__ __install_only__
          source ~/.xmake/profile
          xmake --version

      - name: Prepare
        run: |
          sudo apt update
          sudo apt install -y build-essential llvm libc++-dev
          sudo apt install -y libgl1-mesa-dev libglu1-mesa-dev

      - name: Tests
        run: |
          xmake lua -v -D tests/run.lua
          xrepo --version