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wx-convert

v0.0.12

Published

Convertion tools for miniprogram.

Downloads

6

Readme

wx-convert

这是一个用来实现代码跨端的 CLI 框架。内部主要通过语法树解析源代码实现到目标代码的转换。框架主要用于控制主体执行流程,可配合内置规则convert实现微信小程序的跨端,也可以基于此扩展自定义转换规则。

  • 本框架适用于以下场景:
  1. 微信小程序转微信插件
  2. 微信小程序插件转支付宝小程序插件
  3. 微信小程序转支付宝小程序
  • 目前解析模板仅支持“微信小程序转支付宝小程序”

基础环境

  • nodejs v16.15.0
  • git 2.28.0

安装

npm i wx-convert -D

使用步骤

  1. 准备入口配置文件convert.config.js
# 下载配置文件`convert.config.js`到项目根目录
wget https://raw.githubusercontent.com/wyyxdgm/convert-miniprogram/master/convert.config.js
  1. 克隆子项目convert,位于微信项目根目录,并安装依赖
# convert.config.js中的customFilters会引用这个项目
git clone https://github.com/wyyxdgm/convert.git
cd convert && npm i
  1. 微信开发者工具中执行构建npm

  2. 转换

npx wx-convert aplugin -wv # -w监听文件变化 -v开启日志

命令帮助

wx-convert aplugin -h

输出:

微信插件转支付宝插件

选项:
  -h, --help     显示帮助信息                                             [布尔]
  -w, --watch    指定开发模式下的监听
  -c, --config   指定配置文件路径
  -i, --input    指定输入项目文件夹
  -o, --output   指定输出项目文件夹
  -s, --silence  简化日志输出
  -v, --verbose  输出详细日志
  -V, --version  显示版本号                                               [布尔]

示例:
  wx-convert aplugin [[-c] configpath]  使用configpath配置,默认使用项目根目录的convert.config.js
  wx-convert aplugin -i src -o dist     将src文件夹的项目,生成到dist文件夹中
  • convert.config.js 举例
const path = require("path");
const fs = require("fs");
module.exports = {
  // 微信小程序 -> 支付宝小程序
  fromDir: "./", // 小程序代码根目录
  targetDir: "./dist/aprogram", // 生成代码根目录
  templateDir: "./convert/template", // 模板文件目录,将被同步到`targetDir/${miniprogramRoot}`下
  // miniprogramRoot: "miniprogram", // 默认同project.config.json中的miniprogramRoot
  rsync: {
    // 支持文件和目录
    // 将文件直接同步到多个目标文件
    // "miniprogram/miniprogram_npm": ["./dist/aprogram/miniprogram/miniprogram_npm"],
    // "convert/template_sync/$my.js": ["convert/template/$my.js"],
    // "convert/template_sync/enhance.js": ["convert/template/enhance.js"]
  },
  filterDir: (p, fromDir) => {
    // 文件过滤器,过滤需要被解析的文件。针对路径p,返回Boolean值,true:需要处理;false:无需处理
    p = p.substr(fromDir.length + 1);
    // whitelist - 必须处理
    if ([".gitignore"].find((fnameStart) => p.indexOf(fnameStart) === 0)) return true;
    // blacklist - 无需处理
    if (
      [
        "node_modules",
        "plugin/node_modules",
        "miniprogram/node_modules",
        ".gitmodules",
        ".git",
        "build",
        "dist",
        "packagePlugin",
        "convert/",
        "typings/",
        "convert.config.js",
        ".vscode/",
        "plugin/.git",
      ].find((fnameStart) => p.indexOf(fnameStart) === 0)
    ) {
      return false;
    }
    if ([".d.ts"].find((m) => p.endsWith(m))) return false;
    // 部分页面既有less又有wxss,在支付宝中不支持
    if (p.endsWith(".less")) {
      if (fs.existsSync(path.join(fromDir, p.replace(".less", ".wxss")))) {
        console.warn(`[删除less文件]存在同名wxss:${p}`);
        return false;
      }
    }
    // other - 处理
    return true;
  },
  renamePath: (p, fromDir, targetDir) => {
    // 全局更新目标文件名称或路径
    p = p.replace(fromDir, targetDir);
    const parsed = path.parse(p);
    if (~parsed.dir.indexOf("custom-tab-bar")) {
      // 换目录
      p = p.replace("custom-tab-bar", "customize-tab-bar");
    }
    if (parsed.ext === ".wxml") {
      return p.replace(/\.wxml$/, ".axml");
    }
    if (parsed.ext === ".wxss") {
      return p.replace(/\.wxss$/, ".acss");
    }
    if (parsed.ext === ".ts") {
      return p.replace(/ts$/, "js");
    }
    if (parsed.name == "project.config" && parsed.ext == ".json") {
      return p.replace("project.config", "mini.project");
    }
    if (parsed.ext === ".wxs") {
      return p.replace(/\.wxs$/, ".sjs");
    }
    return p;
  },
  customFilters: require("./convert"), // 面向所有文件的ast过滤器,主要用于端到端的代码更新适配
};
  • customFilters 举例

    由多个过滤器组成的过滤器数组,参考如下

module.exports = [
  // match 可以是函数、正则、字符
  match: (f, t, ctx) => f.endsWith("project.config.json"),
  parse(c, ctx) {
    // c.getStr 获取当前内容
    // c.setStr 设置内容
    // c.xxx 挂属性
    // c.serialize = ()=> 'bbb'; // 重写最终写入目标文件的内容,默认为c.getStr(),也就是原文件读取到的内容
    obj = require(c.from);
    // "项目配置文件,详见文档:https://developers.weixin.qq.com/miniprogram/dev/devtools/projectconfig.html",
    // 微信:https://developers.weixin.qq.com/miniprogram/dev/devtools/projectconfig.html
    // 转
    // 支付宝:https://opendocs.alipay.com/mini/03dbc3
    let newObj = {
      enableAppxNg: true,
      format: 2,
      miniprogramRoot: obj.miniprogramRoot,
      pluginRoot: obj.pluginRoot,
      compileType: obj.compileType,
      compileOptions: {
        component2: true,
        typescript: true,
        less: true,
        globalObjectMode: "enable",
      },
      uploadExclude: obj.packOptions.ignore.map((item) => {
        return item.value;
      }),
      assetsInclude: "",
      developOptions: {
        hotReload: true,
      },
      pluginResolution: "",
      scripts: "",
    };
    c.setStr(JSON.stringify(newObj));
  }
];

微信小程序插件转支付宝小程序插件

  • TODO:待整理文档

此模式和微信小程序转支付宝小程序的区别在于 convert.config.js(尤其过滤器 filters)差异,其他基本复用

运行

wx-convert aplugin

微信小程序转插件

  • TODO 待文档补充

运行:

wx-convert wxplugin -h

脚本方式使用

const { exec } = require("wx-convert");
exec({
  // input: '/path/to/project', // 此模式,将尝试解析/path/to/project/convert.config.js作为主配置入口
  // output: '/path/to/project/dist/aprogram',
  config: "./path/to/project/convert.config.js",
  watch: true,
});

TODO

  • 微信小程序转插件 - 文档补充