node: Support yarn berry

[catsout]

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[catsout]

YARN_GLOBAL_FOLDER changed from /run/build/fiddle/<app>/yarn-mirror/global to /run/build/fiddle/<app>/yarn-berry

[bb010g]

Should this also generate a corepack install-compatible ${COREPACK_HOME:-${XDG_CACHE_HOME:-${HOME}/.config}/node/corepack}/v1 directory (used by corepackUtils.installVersion() which is invoked by Engine.prototype.ensurePackageManager())? It unfortunately looks like setting ${COREPACK_NPM_REGISTRY} to a file: URL will fail due to a check for http at the start of the tarball's address, at least without a local HTTP server inside the build environment, but installing package.json's specified .packageManager into Corepack's install cache (including setting up ${COREPACK_HOME}/v1/${corepack_package_manager_name}/${corepack_package_manager_reference}/.corepack) should work.

For example, for "packageManager": "yarn@4.12.0",, that'd be something like generated sources of (manually constructed for testing purposes):

[
    {
        "type": "file",
        "url": "https://repo.yarnpkg.com/4.12.0/packages/yarnpkg-cli/bin/yarn.js",
        "sha512": "f45ab632439a67f8bc759bf32ead036a1f413287b9042726b7cc4818b7b49e14e9423ba49b18f9e06ea4941c1ad062385b1d8760a8d5091a1a31e5f6219afca8",
        "dest-filename": "yarn.js",
        "dest": "flatpak-node/corepack-home/v1/yarn/4.12.0"
    },
    {
        "type": "inline",
        "contents": "{\"locator\":{\"name\":\"yarn\",\"reference\":\"4.12.0\"},\"bin\":[\"yarn\",\"yarnpkg\"],\"hash\":\"sha512.f45ab632439a67f8bc759bf32ead036a1f413287b9042726b7cc4818b7b49e14e9423ba49b18f9e06ea4941c1ad062385b1d8760a8d5091a1a31e5f6219afca8\"}",
        "dest-filename": ".corepack",
        "dest": "flatpak-node/corepack-home/v1/yarn/4.12.0"
    },
    {
        "type": "shell",
        "commands": [
            "mkdir -- \"flatpak-node/corepack-shims\"",
            "ln -sT -- \"$(command -v corepack)\" \"flatpak-node/corepack-shims/corepack\"",
            "printf 'Running: %s\\n' \"flatpak-node/corepack-shims/corepack --version\"; COREPACK_HOME=\"${PWD:?}/flatpak-node/corepack-home\" COREPACK_ENABLE_NETWORK=\"0\" PATH=\"${PWD:?}/flatpak-node/corepack-shims${PATH:+:${PATH:?}}\" corepack --version",
            "printf 'Running: %s\\n' \"flatpak-node/corepack-shims/corepack enable\"; COREPACK_HOME=\"${PWD:?}/flatpak-node/corepack-home\" COREPACK_ENABLE_NETWORK=\"0\" PATH=\"${PWD:?}/flatpak-node/corepack-shims${PATH:+:${PATH:?}}\" corepack enable"
        ]
    },
    {
        "type": "script",
        "commands": [
            "set -eu",
            "printf 'Running(flatpak-node): %s\\n' \"flatpak-node/corepack-shims/corepack install\"; COREPACK_HOME=\"${PWD:?}/flatpak-node/corepack-home\" COREPACK_ENABLE_NETWORK=\"0\" PATH=\"${PWD:?}/flatpak-node/corepack-shims${PATH:+:${PATH:?}}\" corepack install",
            "printf 'Running(flatpak-node): %s\\n' \"yarn --version\"; yarn --version",
            "printf 'Running(flatpak-node): %s\\n' \"yarn config set enableNetwork false\"; yarn config set enableNetwork false",
            "printf 'Running(flatpak-node): %s\\n' \"yarn config set enableOfflineMode true\"; yarn config set enableOfflineMode true",
            "printf 'Running(flatpak-node): %s\\n' \"yarn config set globalFolder -- '${FLATPAK_BUILDER_BUILDDIR:?}/flatpak-node/yarn-berry'\"; yarn config set globalFolder -- \"${FLATPAK_BUILDER_BUILDDIR:?}/flatpak-node/yarn-berry\"",
            "printf 'Running(flatpak-node): %s\\n' \"yarn plugin import -- '${FLATPAK_BUILDER_BUILDDIR:?}/flatpak-node/flatpak-yarn.js'\"; yarn plugin import \"${FLATPAK_BUILDER_BUILDDIR:?}/flatpak-node/flatpak-yarn.js\"",
            "printf 'Running(flatpak-node): %s\\n' \"yarn convertToZip\"; yarn convertToZip \"${FLATPAK_BUILDER_BUILDDIR:?}/flatpak-node/corepack-home/v1/yarn/4.12.0/yarn.js\""
        ],
        "dest": "flatpak-node"
    }
]

The consuming package can then include a source like:

- type: script
  commands:
  - "set -eu"
  - "printf 'Running: %s\\n' \"./flatpak-node/autogen.sh\"; ./flatpak-node/autogen.sh"

And, if using the simple build system, an initial command NOCONFIGURE=1 ./autogen.sh, to allow yarn to successfully work with ${FLATPAK_BUILDER_BUILDDIR}/flatpak-node/corepack-shims on $PATH.

---

I don't think yarn convertToZip should require a yarnPath argument when it's not handling Yarn1. My sample convertToZip invocation passes a Yarn2 yarnPath instead to get around this.

[catsout]

Maybe another pr, as it's not only for yarn berry.