67 lines
2.4 KiB
TypeScript
67 lines
2.4 KiB
TypeScript
import * as ESBuild from "https://deno.land/x/esbuild@v0.19.2/wasm.js";
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import * as Mapper from "https://esm.sh/esbuild-plugin-importmaps@1.0.0"; // https://github.com/andstellar/esbuild-plugin-importmaps
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import Introspect from "./introspect.ts";
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const prefix = "/_dot_importer_/";
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const resolvePlugin =(fullPathDir:string):ESBuild.Plugin=>({
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name: "resolve-plugin",
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setup(build) {
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build.onResolve({ filter: /^(\.\/|\.\.\/).*/ }, (args)=>
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{
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let resolveRoot = args.importer||fullPathDir;
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if(resolveRoot.startsWith(prefix))
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{
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resolveRoot = resolveRoot.substring(prefix.length);
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}
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const output:ESBuild.OnResolveResult = {
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path:prefix + new URL(args.path, resolveRoot).href,
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namespace:"http",
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}
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return output;
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});
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build.onLoad({ filter: /.*/, namespace:"http" }, async(args)=> {
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const fetchPath = args.path.substring(prefix.length);
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console.log("fetch path", fetchPath);
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const result = await fetch(fetchPath);
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const contents = await result.text();
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return { contents, loader: `tsx` };
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});
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},
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});
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await ESBuild.initialize({ worker: false });
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export type ImportMap = Parameters<typeof Mapper.importmapPlugin>[0];
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export type BuildOptions = ESBuild.BuildOptions;
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/**
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*
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* @param directory Full file:// or http(s):// path to the directory containing assets you want to build (needed to resolve relative imports)
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* @param buildOptions ESBuild "build" options (will be merged with "reasonable defaults") for docs: https://esbuild.github.io/api/#general-options
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* @param importMap An object to act as the import map ({imports:Record<string, string>}). If this is left blank, a configuration will be scanned for in the "directory"
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* @returns build result
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*/
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export default async function(directory:string, buildOptions={} as BuildOptions, importMap?:ImportMap):Promise<ESBuild.BuildResult<ESBuild.BuildOptions>>
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{
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if(!importMap)
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{
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importMap = await Introspect(directory) as ImportMap
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}
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console.log("using import map", importMap);
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const configuration:ESBuild.BuildOptions = {
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entryPoints: ["entry"],
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bundle: true,
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minify: true,
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format: "esm",
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jsx: "automatic",
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jsxImportSource: "react",
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...buildOptions,
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plugins: [
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resolvePlugin(directory),
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Mapper.importmapPlugin(importMap) as ESBuild.Plugin,
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...buildOptions.plugins||[]
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]
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};
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const result = await ESBuild.build(configuration);
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return result;
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}
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export { ESBuild }; |