San-ssr Webpack 插件,用于将 .san
编译为可在 Node.js 中执行的 JavaScript 文件。
需要配合 san-loader 一起使用。
import webpack from 'webpack';
import SanLoaderPlugin from 'san-loader/lib/plugin';
import SanSSRPlugin from 'san-ssr-plugin';
export default {
plugins: [
new SanSSRPlugin({
output: {
path: 'js',
}
}),
new SanLoaderPlugin()
],
resolve: {
extensions: ['.san'],
},
module: {
rules: [
{
test: /\.san$/,
loader: 'san-loader',
}
],
}
};
npm run test
san-ssr 本身不负责样式的处理。本插件通过封装 san-ssr 产物(render 函数)的形式处理样式产物:
css = namedModuleCss.reduce((acc, cur) => {
if (cur.css) {
acc += `\n${cur.css}`;
}
return acc;
}, css);
if (css) {
code += 'const originSanSSRRenders = module.exports.sanSSRRenders;\n';
code += 'Object.keys(originSanSSRRenders).forEach(renderName => {\n';
code += ' originSanSSRRenders[renderName] = makeRender(originSanSSRRenders[renderName]);\n';
code += '});\n';
code += 'module.exports = Object.assign(sanSSRResolver.getRenderer({id: "default"}), exports);\n';
code += 'function makeRender(originRender) {\n';
code += ' return function (data, ...params) {\n';
code += ' if (global.__COMPONENT_CONTEXT__) {\n';
code += ` global.__COMPONENT_CONTEXT__[${styleId}] = ${JSON.stringify(css)};\n`;
code += ' }\n';
if (Object.keys(locals).length > 0) {
code += ' data[\'$style\'] = {\n';
code += ` ${Object.keys(locals).map(item =>
`${JSON.stringify(item)}: ${JSON.stringify(locals[item])}`
).join(',')}\n`;
code += ' };\n';
}
namedModuleCss.forEach(({name, locals}) => {
if (locals) {
if (Object.keys(locals).length > 0) {
code += ` data[\'$${name}\'] = {\n`;
code += ` ${Object.keys(locals).map(item =>
`${JSON.stringify(item)}: ${JSON.stringify(locals[item])}`
).join(',')}\n`;
code += ' };\n';
}
}
});
code += ' return originRender(data, ...params);\n';
code += ' };\n';
code += '}\n';
}
这段代码会添加在产物的最后,作为输出。
如果该内容不能满足要求,使用者可通过 appendRenderFunction
选项自行设置该内容:
plugins: [
new SanSsrPlugin({
appendRenderFunction(
styleId: string,
css: string = '',
locals: Record<string, string>,
namedModuleCss: Array<{
name: string;
css?: string;
locals?: Record<string, string>;
}> = []
) {
return ``;
}
})
]
参数的具体内容可参考上方默认的输出。