比如下面这些：

{
  "name": "sagan",
  "description": "node.js packages for sagan UI.",
  "repository" : {
      "type" : "git",
      "url" : "http://github.com/spring-io/sagan.git"
  },
  "dependencies": {
  },
  "devDependencies": {
    "bower": "1.3.2",
    "gulp": "3.8.7",
    "gulp-util": "3.0.1",
    "gulp-filter": "1.0.0",
    "gulp-cram": "0.2.0",
    "gulp-minify-css": "0.3.7",
    "gulp-uglify": "0.3.1",
    "gulp-bower-src": "0.1.0",
    "gulp-sourcemaps": "1.1.3",
    "when": "3.4.4",
    "jshint": "2.1",
    "wd": "0.2.17"
  },
  "directories": {
    "test": "test"
  },
  "scripts": {
    "prepublish": "bower install --config.interactive=false",
    "build": "gulp build"
  }
}



这些是手写的还是工具自动生成的？
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