kernel-eth/build.js

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import esbuild from "esbuild";
import { readFile } from "fs/promises";
import path from "path";
await esbuild.build({
entryPoints: ["src/index.ts"],
outfile: "dist/index.js",
format: "iife",
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bundle: true,
legalComments: "external",
define: {
global: "self",
"import.meta": "true",
},
plugins: [
{
name: "base64",
setup(build) {
build.onResolve({ filter: /\?base64$/ }, (args) => {
return {
path: args.path,
pluginData: {
isAbsolute: path.isAbsolute(args.path),
resolveDir: args.resolveDir,
},
namespace: "base64-loader",
};
});
build.onLoad(
{ filter: /\?base64$/, namespace: "base64-loader" },
async (args) => {
const fullPath = args.pluginData.isAbsolute
? args.path
: path.join(args.pluginData.resolveDir, args.path);
return {
contents: Buffer.from(
await readFile(fullPath.replace(/\?base64$/, ""))
).toString("base64"),
loader: "text",
};
}
);
},
},
],
external: ["fs"],
inject: ["./polyfill.js"],
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});
export {};