80 lines
2.1 KiB
JavaScript
80 lines
2.1 KiB
JavaScript
'use strict'
|
|
|
|
const PLUGINS_RE = /^(?:@babel\/|babel-)plugin-.+$/
|
|
const PRESETS_RE = /^@babel\/preset-.+$/
|
|
|
|
const NODE_ENV = process.env.NODE_ENV || 'development'
|
|
const __PROD__ = NODE_ENV === 'production'
|
|
const __TEST__ = NODE_ENV === 'test'
|
|
|
|
const configs = {
|
|
'@babel/plugin-proposal-decorators': {
|
|
legacy: true,
|
|
},
|
|
'@babel/plugin-proposal-pipeline-operator': {
|
|
proposal: 'minimal',
|
|
},
|
|
'@babel/preset-env'(pkg) {
|
|
return {
|
|
debug: !__TEST__,
|
|
|
|
// disabled until https://github.com/babel/babel/issues/8323 is resolved
|
|
// loose: true,
|
|
|
|
shippedProposals: true,
|
|
targets: (() => {
|
|
let node = (pkg.engines || {}).node
|
|
if (node !== undefined) {
|
|
const trimChars = '^=>~'
|
|
while (trimChars.includes(node[0])) {
|
|
node = node.slice(1)
|
|
}
|
|
}
|
|
return { browsers: pkg.browserslist, node }
|
|
})(),
|
|
useBuiltIns: '@babel/polyfill' in (pkg.dependencies || {}) && 'usage',
|
|
}
|
|
},
|
|
}
|
|
|
|
const getConfig = (key, ...args) => {
|
|
const config = configs[key]
|
|
return config === undefined
|
|
? {}
|
|
: typeof config === 'function'
|
|
? config(...args)
|
|
: config
|
|
}
|
|
|
|
// some plugins must be used in a specific order
|
|
const pluginsOrder = [
|
|
'@babel/plugin-proposal-decorators',
|
|
'@babel/plugin-proposal-class-properties',
|
|
]
|
|
|
|
module.exports = function(pkg, plugins, presets) {
|
|
plugins === undefined && (plugins = {})
|
|
presets === undefined && (presets = {})
|
|
|
|
Object.keys(pkg.devDependencies || {}).forEach(name => {
|
|
if (!(name in presets) && PLUGINS_RE.test(name)) {
|
|
plugins[name] = getConfig(name, pkg)
|
|
} else if (!(name in presets) && PRESETS_RE.test(name)) {
|
|
presets[name] = getConfig(name, pkg)
|
|
}
|
|
})
|
|
|
|
return {
|
|
comments: !__PROD__,
|
|
ignore: __TEST__ ? undefined : [/\.spec\.js$/],
|
|
plugins: Object.keys(plugins)
|
|
.map(plugin => [plugin, plugins[plugin]])
|
|
.sort(([a], [b]) => {
|
|
const oA = pluginsOrder.indexOf(a)
|
|
const oB = pluginsOrder.indexOf(b)
|
|
return oA !== -1 && oB !== -1 ? oA - oB : a < b ? -1 : 1
|
|
}),
|
|
presets: Object.keys(presets).map(preset => [preset, presets[preset]]),
|
|
}
|
|
}
|