bundle_wrapper.mjs

importfsfrom'fs';
importfsExtrafrom'fs-extra';
importprependFilefrom'prepend-file';

import{build}from'esbuild';

importesbuildConfigfrom'../../esbuild-config.js';
importbrowserifyAdapterfrom'esbuild-plugin-browserify-adapter';

importtransformfrom'../../tasks/compress_attributes.js';
importcommonfrom'./common.js';

varbasePlugins=esbuildConfig.plugins;

/** Convenience bundle wrapper
 *
 * @param {string} pathToIndex path to index file to bundle
 * @param {string} pathToBunlde path to destination bundle
 * @param {object} opts
 * Bundle options:
 * - standalone {string}
 * Additional option:
 * - noCompressAttributes {boolean} skip attribute meta compression?
 * @param {function} cb callback
 *
 * Otherwise outputs two file: one un-minified bundle and one minified bundle.
 *
 * Logs basename of bundle when completed.
 */
exportdefaultasyncfunction_bundle(pathToIndex,pathToBundle,opts,cb){
opts=opts||{};

varconfig={...esbuildConfig};

config.entryPoints=[pathToIndex];
config.outfile=pathToBundle;
config.minify=!!opts.minify;

if(!opts.noCompressAttributes){
config.plugins=basePlugins.concat([browserifyAdapter(transform)]);
}

if(opts.noPlugins)config.plugins=[];

awaitbuild(config);

addWrapper(pathToBundle);

if(pathToBundle.endsWith('.js')){
varlen=pathToBundle.length;
varcssOutput=pathToBundle.slice(0,len-3)+'.css';

// remove unwanted css file
if(fs.existsSync(cssOutput)){
fs.unlinkSync(cssOutput);
}
}

if(cb)cb();
}

// Until https://github.com/evanw/esbuild/pull/513 is merged
// Thanks to https://github.com/prantlf and https://github.com/birkskyum
functionaddWrapper(path){
prependFile.sync(
path,
[
'(',
' function(root, factory) {',
' if (typeof module === "object" && module.exports) {',
' module.exports = factory();',
' } else {',
' root.moduleName = factory();',
' }',
'} (typeof self !== "undefined" ? self : this, () => {',
''
].join('\n'),
common.throwOnError
);

fsExtra.appendFile(
path,
[
'',
'window.Plotly = Plotly;',
'return Plotly;',
'}));',
].join('\n'),
common.throwOnError
);
}