@bluecadet/bldr

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Bldr

Installation

npm i -g @bluecadet/bldr

Documentation

• Config documentation
  • Config Setup
  • Environment Config
  • PostCSS config
  • Esbuild and Rollup Config
• Command documentation
• Processing documentation

Config

Bldr relies on a bldrConfig.js file to point to where files should be sourced, distributed to, and watched.

Bldr supports 2 main processes: dev and build, where dev is meant to run locally, and build is meant for production. The main difference: JS files in dev are processed with esBuild, while JS files in build are processed with Rollup. CSS is always processed by PostCss. This keeps development builds fast, and production builds more thorough.

Config Setup

Base config

Config can be setup to either export a single object, or an object with dev and build objects.

If path values for the dev and build processes are identical, you can use export a single object:

module.exports = {
  // file configuration
}

If you need to support different path structures for dev and build commands, use the following configuration:

module.exports = {
  dev: {
    // file configuration
  },
  build: {
    // file configuration
  }
}

Both the single config object and the dev and build keyed object support the following file configuration objects (described below):

{
  css: {
    // src/dest/watch config for processing files with postcss
  },
  js: {
    // src/dest/watch config for processing files with esbuild (dev) or rollup (build)
  },
  images: {
    // src/dest/watch config for processing files with postcss
  }
}

Each of these keys can support a single object (css: {}) OR and array of objects:

{
  css: [
    {
      // src/dest/watch config
    },
    {
      // src/dest/watch config
    },
  ],
  js: {
    // src/dest/watch config
  },
  images: {
    // src/dest/watch config
  }
}

This is useful if there are multiple directories in one project to run processes on.

src, dest, watch config

src config expects a path (string). This path is the 'incoming' path for processing. Glob patterns can be used.

Example:

css: {
  src: './path/to/src/css/**/*.css'
}

dest config expects a path (string). This path is the 'destination' for processing. This is the directory where builds will be created.

Example:

css: {
  dest: './path/to/public/css/'
}

watch config is only used in the dev process, and expects an array of paths (array of strings). These paths will be 'watched' by chokidar.

Example:

css: {
  watch: [
    './path/to/src/css/**/*.css',
    './path/to/other/css/**/*.css'
  ]
}

Example basic config:

module.exports = {
  css: {
    src: './path/to/src/css/**/*.css',
    dest: './path/to/public/css/',
    watch: [
      './path/to/src/css/**/*.css',
      './path/to/other/css/**/*.css'
    ]
  }
}

Example dev/build config:

module.exports = {
  dev: {
    css: {
      src: './path/to/src/css/**/*.css',
      dest: './path/to/public/css/',
      watch: [
        './path/to/src/css/**/*.css',
        './path/to/other/css/**/*.css'
      ]
    }
  },
  build: {
    css: {
      src: './path/to/src/css/**/*.css',
      dest: './path/to/public/css/',
      watch: [
        './path/to/src/css/**/*.css',
        './path/to/other/css/**/*.css'
      ]
    }
  }
}

Environment config

Within the basic config object or the dev key, an env object can be added to define seperate build environments. This allows you to create specific config for a specific set of files (such as 'cms' or 'theme'). Consider it to be multiple dev configurations.

Once an env config object is created, they can be ran using the flag env=ENV_KEY_NAME.

Example basic config:

module.exports = {
  css: [
    {
      src: './theme/src/css/**/*.css',
      dest: './theme/public/css/',
      watch: ['./theme/src/css/**/*.css',]
    },
    {
      src: './cms/src/css/**/*.css',
      dest: './cms/public/css/',
      watch: ['./cms/src/css/**/*.css',]
    },
  ],
  env: {
    themeOnly: {
      css: {
        src: './theme/src/css/**/*.css',
        dest: './theme/public/css/',
        watch: ['./theme/src/css/**/*.css',]
      },
    }
  }
}

Example dev/build config:

module.exports = {
  dev: {
    css: [
      {
        src: './theme/src/css/**/*.css',
        dest: './theme/public/css/',
        watch: ['./theme/src/css/**/*.css',]
      },
      {
        src: './cms/src/css/**/*.css',
        dest: './cms/public/css/',
        watch: ['./cms/src/css/**/*.css',]
      },
    ],
    env: {
      themeOnly: {
        css: {
          src: './theme/src/css/**/*.css',
          dest: './theme/public/css/',
          watch: ['./theme/src/css/**/*.css',]
        },
      }
    }
  }
}

In this example, bldr dev will watch and process css in both the theme and cms directories, but running

$ bldr dev env=themeOnly

will only watch the theme directory. Multiple env objects can be configured.

Each object in the env config has the same options as the dev and build config.

PostCSS config

Configure postcss by adding a postcss.config.js file to the root of your project. bldr uses postcss-load-config under the hood. As such, make sure to add plugins using the object syntax in the postcss-load-config documentation here.

In addition to the default context variables of (ctx.env (process.env.NODE_ENV) and ctx.cwd (process.cwd())), there is an additional bldrEnv, which will have the value of the current build command (dev, build, or watch). Again, refer to the postcss-load-config documentation here.

EsBuild/Rollup override config

Both esBuild and rollup options can be changed/overwritten in the config. The following config is available:

const buildStatistics = require('rollup-plugin-build-statistics');

module.exports = {
  dev: ...,
  build: ...,
  esBuild: {
    plugins: [
      // Array of esbuild plugins
      require("essass"),
    ],
    overridePlugins: false,
    esBuild: require('esbuild'), // overrides bldr version of esbuild
  },
  rollup: {
    inputOptions: {
      plugins: [
        // Array of rollup input plugins
        buildStatistics({
          projectName: 'awesome-project',
        }),
      ]
    },
    outputOptions: {
      plugins: [
        // Array of rollup output plugins
      ]
    },
    overridePlugins: false,
    rollup: require('rollup'), // overrides bldr version of rollup
  }
}

If overridePlugins is set to false (default value), items in the plugins arrays will be added to the existing bldr plugins. If overridePlugins is set to true, then default bldr plugins will not be used, and only those provided in the plugins array will be added.

If you need a specific version of esbuild or rollup, add the require statement as shown above.

Commands

init

$ bldr init

Running init will attempt to create boilerplate config files in the project root.

dev

$ bldr dev

Running dev will run postcss and esbuild without minification.

watch

$ bldr watch

Running watch will run postcss and esbuild without minification (same as dev). Additionally:

• a chokidar instance will initialize to watch files and run appropriate processes when files are added/removed/updated based on file type
• a browsersync instance will be created if it does not exist. Edit bldrConfigLocal.js to add browsersync options as needed.

build

$ bldr build

Running build will run postcss and rollup with minification. Rollup will also run babel.

Processing

Default Rollup plugins:

• @rollup/plugin-babel
• @rollup/plugin-commonjs
• rollup-plugin-terser
• @rollup/plugin-node-resolve
• @rollup/plugin-eslint