babel-concat-sourcemaps

Use this plugin to pass an [Array of file path's], or an [Array of file contents] to one of Babel's transform methods. And the result will return an {Object} with two keys:

• {code: ... } containing your processed & concatenated code. With inlined sourcemap if you have set the Babel option 'sourcemaps: true'.
• {map: ... } containing the RAW source map object which is the concatenation of each source-map of each given file (or file contents).

Installation

npm install babel-concat-sourcemaps

const concat = require("babel-concat-sourcemaps");


Usage example :

const result = concat.transformFileSync([path1, path2, ..., pathN], options);
result.code // returns the concatenation of file1, file2, ..., fileN after they have been processed by Babel (Sourcemap is inlined if the babel option has been set to true)
result.map // returns the RAW source map object which is the concatenation of each source-map of each given file (or block of code).


Babel options example:

const result = concat.transformFileSync([path1, ..., pathN], {
  "presets": [
    ["@babel/preset-env", { 
      "targets": { 
        "browsers": [
          "> 1%",
          "last 2 versions",
          "not ie < 11"
        ]
      } 
    }]
  ],
  "sourceMaps": true,
  "minified": false,
  "comments": false
});

API

transform(codeBlocks, options)

Same as transform from babel except that you give a list of code blocks.

• codeBlocks : list of code blocks
• options: see babel options

transformFile(files, options, callback)

Same as transformFile from babel with mutilple files.

• files : all files to transform
• options: see babel options
• callback: see babel callback

transformFileSync(files, options)

Same as transformFileSync from babel with mutilple files.

• files : all files to transform
• options: see babel options

babelConcat(results, options)

Concat all result with code and map from babel transform.

• results : all results from babel. Use option "both" or "true" to have the source map.
• options: see babel options

License

MIT License.