102 lines
3.3 KiB
JavaScript
102 lines
3.3 KiB
JavaScript
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const path = require('path')
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const fs = require('fs')
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const axios = require('axios')
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const crypto = require('crypto')
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const readline = require('readline')
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/**
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* 生成字典插件 v1.0
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* youfool
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*/
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class constantFile {
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constructor(options) {
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this.options = options
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}
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apply(compiler) {
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compiler.hooks.environment.tap('constantFile', async (compilation, callback) => {
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// 只在开发环境
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if (process.env.ENV === 'development') {
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const projectPath = path.join(__dirname, '../../')
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const constantPath = projectPath + '/src/constant'
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fs.mkdir(constantPath, function (error) {
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if (error) {
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return false
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}
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// 获取字典参数
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axios.get(this.options.api).then((res) => {
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const { code, data } = res.data
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if (code === 0) {
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for (const module of data) {
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// 模块
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const moduleName = Object.keys(module)[0]
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const filePath = constantPath + '/' + moduleName + 'Constant.js'
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let fileStr = templateStr(module[moduleName])
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const hash = crypto.createHash('md5')
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hash.update(fileStr)
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const md5 = hash.digest('hex')
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// 判断之前的文件是否存在
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if (fs.existsSync(filePath)) {
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const oldFile = readline.createInterface({
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input: fs.createReadStream(filePath)
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})
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let oldMd5
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oldFile.on('line', function (line) { // 事件监听
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if (!oldMd5) {
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// 解析旧文件的字符md5
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oldMd5 = line.replace('// ', '')
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if (oldMd5 === md5) {
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oldFile.close()
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} else {
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// 不相同则重新生成常量文件
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fileStr = `// ${md5}\n` + fileStr
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fs.writeFileSync(filePath, fileStr, 'utf8')
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}
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}
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})
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} else {
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// 不相同则重新生成常量文件
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fileStr = `// ${md5}\n` + fileStr
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fs.writeFileSync(filePath, fileStr, 'utf8')
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}
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}
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}
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}).catch((e) => { })
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})
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}
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})
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}
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}
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/**
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* 生成文件字符
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*/
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function templateStr(dictTypes) {
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const moduleName = dictTypes[0].module
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const moduleDescription = dictTypes[0].moduleDescription
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// 开头
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const head = `/**
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* ${moduleName}${moduleDescription || ''}
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* 注：本文件不能手动修改，需要通过代码生成器生成
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*/\n`
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// 底部
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let bottom = 'export default {'
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// 遍历类型
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let content = ''
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for (const dictType of dictTypes) {
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content += `/**
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*${dictType.name}
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*${dictType.typeDescription || ''}
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*/`
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for (const dictCode of dictType.dictCodes) {
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const attribute = `${dictType.type.toUpperCase()}_${dictCode.constant.toUpperCase()}`
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content += `\nconst ${attribute} = '${dictCode.code}'// ${dictCode.label}${dictCode.description || ''}`
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bottom += ` ${attribute},`
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}
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content += `\n`
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}
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// 去除最后的逗号
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bottom = bottom.substr(0, bottom.length - 1) + ` }`
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return head + '\n' + content + '\n' + bottom + '\n'
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}
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module.exports = constantFile
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