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webpack.config.js
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webpack.config.js
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const path = require('path');
const webpack = require('webpack');
const DEBUG = process.env.NODE_ENV === 'development';
// Modify the webpack settings based on the configuration
const plugins = [];
const defines = {
DEBUG : false,
PLATFORM_BROWSER : true,
};
const bundleSuffix = (DEBUG) ? '' : '.min';
let devtool;
if (DEBUG) {
defines.DEBUG = true;
devtool = 'source-map';
}
//
// Webpack configuration
//
const bundleName = `lightstep-tracer${bundleSuffix}`;
module.exports = {
stats: {
errorDetails: true
},
mode : DEBUG ? 'development' : 'production',
entry : './src/lib.js',
target : 'web',
devtool : devtool,
output : {
path : path.resolve(__dirname, 'dist'),
filename : `${bundleName}.js`,
library : 'lightstep',
libraryTarget : 'umd',
},
plugins : [
new webpack.DefinePlugin(defines),
].concat(plugins),
resolve : {
alias : { },
},
module : {
rules : [
{
test : /\.js$/,
include : /src\//,
exclude : /node_modules/,
use : {
loader : 'babel-loader',
options : {
cacheDirectory : true,
plugins : [
'add-module-exports',
//
// Manually specify the *subset* of the ES2015 preset
// to use. This reduces the output file size and improves
// interoperability (e.g. Symbol polyfills on IE still
// don't work great).
//
'@babel/plugin-transform-template-literals',
'@babel/plugin-transform-literals',
//'@babel/plugin-transform-function-name',
'@babel/plugin-transform-arrow-functions',
'@babel/plugin-transform-block-scoped-functions',
'@babel/plugin-transform-classes',
'@babel/plugin-transform-object-super',
// '@babel/plugin-transform-shorthand-properties',
'@babel/plugin-transform-duplicate-keys',
'@babel/plugin-transform-computed-properties',
// '@babel/plugin-transform-for-of',
'@babel/plugin-transform-sticky-regex',
'@babel/plugin-transform-unicode-regex',
'@babel/plugin-transform-spread',
'@babel/plugin-syntax-object-rest-spread',
'@babel/plugin-proposal-object-rest-spread',
'@babel/plugin-transform-parameters',
'@babel/plugin-transform-destructuring',
'@babel/plugin-transform-block-scoping',
//'@babel/plugin-transform-typeof-symbol',
'@babel/plugin-transform-modules-commonjs'
],
},
},
},
],
},
};