denoland-deno/tools/gen_workflow_yml.ts

#!/usr/bin/env -S deno run --unstable --allow-write --allow-read --allow-run

const slowRunners = {
  "linux": "ubuntu-18.04",
  "macos": "macos-10.15",
  "windows": "windows-2019",
};

const fastRunners = {
  "linux":
    "${{ github.repository == 'denoland/deno' && 'ubuntu-latest-xl' || 'ubuntu-18.04' }}",
  "macos": "macos-10.15",
  "windows": "windows-2019",
};

const env = {
  "CARGO_INCREMENTAL": "0",
  "RUST_BACKTRACE": "full",
  "CARGO_TERM_COLOR": "always",
};

const platforms = ["linux", "macos", "windows"] as const;
const kinds = ["release", "debug"] as const;

const chechout = [
  {
    name: "Configure git",
    run: "git config --global core.symlinks true",
  },
  {
    name: "Checkout repository",
    uses: "actions/checkout@v2",
    with: {
      "fetch-depth": 5,
      submodules: true,
    },
  },
];

function buildCache(os: string, kind: string) {
  return {
    name: "Build cache",
    uses: "actions/cache@v2",
    with: {
      path: [
        "~/.cargo/registry",
        "~/.cargo/git",
        ".cargo_home",
        "target/*/.*",
        "target/*/build",
        "target/*/deps",
      ].join("\n"),
      key: `${os}-${kind}-\${{ hashFiles('Cargo.lock') }}`,
      "restore-keys": `${os}-${kind}-`,
    },
  };
}

const setupRust = {
  name: "Setup Rust",
  uses: "actions-rs/toolchain@v1",
  with: {
    default: true,
    override: true,
    toolchain: "1.50.0",
  },
};

function generateBuildJobs(): Record<string, unknown> {
  const jobs: Record<string, unknown> = {};

  for (const os of platforms) {
    for (const kind of kinds) {
      if (os != "linux" && kind == "debug") continue;

      jobs[`build_${os}_${kind}`] = {
        name: `build / ${os} / ${kind}`,
        "runs-on": fastRunners[os],
        "timeout-minutes": 60,
        env,
        steps: [
          ...chechout,
          {
            name: "Configure canary",
            if: "!startsWith(github.ref, 'refs/tags/')",
            shell: "bash",
            run: "echo 'DENO_CANARY=true' >> $GITHUB_ENV",
          },
          buildCache(os, kind),
          setupRust,
          {
            name: `Build ${kind}`,
            uses: "actions-rs/cargo@v1",
            with: {
              "use-cross": false,
              command: "build",
              args: `--locked --all-targets ${
                kind == "release" ? "--release" : ""
              }`,
            },
          },
          {
            name: "Upload build artifact",
            uses: "actions/upload-artifact@v2",
            with: {
              name: `build-${os}-${kind}`,
              path: [
                `target/${kind}/deno${os == "windows" ? ".exe" : ""}`,
                `target/${kind}/denort${os == "windows" ? ".exe" : ""}`,
              ].join("\n"),
            },
          },
        ],
      };
    }
  }

  return jobs;
}

const ci = {
  name: "ci",
  // FIXME
  on: [/*"push",*/ "pull_request"],
  jobs: {
    ...generateBuildJobs(),
  },
};

const str = JSON.stringify(ci, undefined, 2);
await Deno.writeTextFile(
  "./.github/workflows/ci.yml",
  `# THIS FILE IS AUTOGENERATED USING ./tools/get_workflow.yml\n${str}`,
);