【nodejsシェルアプリ開発】vercel/pkgでCLI版スネークゲームを作ってみる

            
            $ node --version
v18.12.1
$ npm --version
9.1.2
$ yarn --version
1.22.19
        

            
            {
  "name": "snake_pkg",
  "version": "0.0.1",
  "description": "To execise to use pkg with Snake Game."
}
        

            
            $ yarn add pkg -D
        

            
            {
  "name": "snake_pkg",
  "version": "0.0.1",
  "description": "To execise to use pkg with Snake Game.",
  "bin": "build/index.js",
  "scripts": {
    "pkg": "pkg"
  },
  "devDependencies": {
    "pkg": "^5.8.0"
  }
}
        

            
            $ yarn pkg -h

  pkg [options] <input>

  Options:

    -h, --help           output usage information
    -v, --version        output pkg version
    -t, --targets        comma-separated list of targets (see examples)
    -c, --config         package.json or any json file with top-level config
    --options            bake v8 options into executable to run with them on
    -o, --output         output file name or template for several files
    --out-path           path to save output one or more executables
    -d, --debug          show more information during packaging process [off]
    -b, --build          don't download prebuilt base binaries, build them
    --public             speed up and disclose the sources of top-level project
    --public-packages    force specified packages to be considered public
    --no-bytecode        skip bytecode generation and include source files as plain js
    --no-native-build    skip native addons build
    --no-dict            comma-separated list of packages names to ignore dictionaries. Use --no-dict * to disable all dictionaries
    -C, --compress       [default=None] compression algorithm = Brotli or GZip

  Examples:

  – Makes executables for Linux, macOS and Windows
    $ pkg index.js
  – Takes package.json from cwd and follows 'bin' entry
    $ pkg .
  – Makes executable for particular target machine
    $ pkg -t node14-win-arm64 index.js
  – Makes executables for target machines of your choice
    $ pkg -t node12-linux,node14-linux,node14-win index.js
  – Bakes '--expose-gc' and '--max-heap-size=34' into executable
    $ pkg --options "expose-gc,max-heap-size=34" index.js
  – Consider packageA and packageB to be public
    $ pkg --public-packages "packageA,packageB" index.js
  – Consider all packages to be public
    $ pkg --public-packages "*" index.js
  – Bakes '--expose-gc' into executable
    $ pkg --options expose-gc index.js
  – reduce size of the data packed inside the executable with GZip
    $ pkg --compress GZip index.js
        

            
            {
  "name": "snake_pkg",
  "version": "0.0.1",
  "description": "To execise to use pkg with Snake Game.",
  "bin": "build/index.js",
  "scripts": {
    "pkg": "pkg"
  },
  "pkg": {
    "scripts": "build/**/*.js",
    "assets": [
        "assets/**/*",
        "static/**/*"
    ],
    "targets": ["latest-linux-x64"],
    "outputPath": "dist"
  }
  "devDependencies": {
    "pkg": "^5.8.0"
  }
}
        

            
            nodeRange:
    (node8)
    node10
    node12
    node14
    node16
    latest

platform:
    alpine
    linux
    linuxstatic
    win
    macos
    (freebsd)

arch:
    x86
    x64
    arm64
        

            
            [nodeRange]-[platform]-[arch]
        

            
            $ tree -L 2 -I node_modules
.
├── build
│   └── index.js
├── package.json
└── yarn.lock
        

            
            $ yarn pkg .
        

            
            $ tree -L 2 -I node_modules
.
├── build
│   └── index.js
├── dist
│   └── snake_pkg #👈バイナリファイル
├── package.json
└── yarn.lock
        

            
            $ du -sSk snake_nexe
72392 snake_nexe
        

            
            $ du -sSk snake_pkg
45220 snake_pkg