62 lines
2 KiB
JavaScript
62 lines
2 KiB
JavaScript
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const fs = require('fs')
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const path = require('path')
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const camelizeRE = /-(\w)/g
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const camelize = str => {
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return str.replace(camelizeRE, (_, c) => c ? c.toUpperCase() : '')
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}
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const hyphenateRE = /\B([A-Z])/g
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const hyphenate = str => {
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return str.replace(hyphenateRE, '-$1').toLowerCase()
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}
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/**
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* Creates the script to add the component to the custom elements
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* @param {string} prefix The prefix for the component library
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* @param {string} component The component name for single entry builds, component file for multi-entry builds
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* @param {string} file The file for the component
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* @param {boolean} async Whether to load component async or not
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*/
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const createElement = (prefix, component, file, async) => {
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const { camelName, kebabName } = exports.fileToComponentName(prefix, component)
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return async
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? `window.customElements.define('${kebabName}', wrap(Vue, () => import('~root/${file}?shadow')))\n`
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: `import ${camelName} from '~root/${file}?shadow'\n` +
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`window.customElements.define('${kebabName}', wrap(Vue, ${camelName}))\n`
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}
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exports.fileToComponentName = (prefix, file) => {
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const basename = path.basename(file).replace(/\.(jsx?|vue)$/, '')
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const camelName = camelize(basename)
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const kebabName = `${prefix ? `${prefix}-` : ``}${hyphenate(basename)}`
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return {
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basename,
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camelName,
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kebabName
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}
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}
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exports.resolveEntry = (prefix, libName, files, async) => {
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const filePath = path.resolve(__dirname, 'entry-wc.js')
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const elements =
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prefix === ''
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? [createElement('', libName, files[0])]
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: files.map(file => createElement(prefix, file, file, async)).join('\n')
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const content = `
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import './setPublicPath'
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import Vue from 'vue'
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import wrap from '@vue/web-component-wrapper'
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// runtime shared by every component chunk
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import 'css-loader/lib/css-base'
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import 'vue-style-loader/lib/addStylesShadow'
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import 'vue-loader/lib/runtime/componentNormalizer'
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${elements}`.trim()
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fs.writeFileSync(filePath, content)
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return filePath
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}
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