import fs from "fs"
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export default function examplePlugin(mode: string) {
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return {
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name: "transform-example",
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load(id: string) {
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// 填坑：在transform中处理的是编译后的文件内容，导致了一些bug
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if (id.endsWith(".vue") || /widgets\/.*\/map.ts/.test(id)) {
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const data = fs.readFileSync(id)
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let source = data.toString()
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if (source.indexOf(`from "./map.js"`) !== -1) {
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source = source.replace(/import \* as (\S*) from \"\.\/map\.js\"/g, "const $1 = window.mapWork")
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}
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if (source.indexOf(`from "mars2d"`) !== -1) {
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source = source.replace(/import \* as (\S*) from \"mars2d\"/g, "const $1 = window.mars2d")
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}
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if (source.indexOf(`from "mars3d"`) !== -1) {
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source = source.replace(/import \* as (\S*) from \"mars3d\"/g, "const $1 = window.mars3d")
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}
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return source
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}
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},
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transform(source: string, id: string) {
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let code = source
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if (/example\/.*\/map.js/.test(id) && mode === "development") {
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// 替换let const
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code = code.replace(new RegExp("export let ", "gm"), "var ")
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code = code.replace(new RegExp("export const ", "gm"), "var ")
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// 浏览器中运行时，删除export import
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code = code.replace(new RegExp("export ", "gm"), "")
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code = code.replace(new RegExp("import ", "gm"), "// import ")
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// 删除const L = mars2d.L
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code = code.replace("const L = mars2d.L", "")
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// 删除const Cesium = mars3d.Cesium
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code = code.replace("const Cesium = mars3d.Cesium", "")
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}
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return {
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code
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}
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}
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}
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}
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