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rollup.config.js
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rollup.config.js
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import { wasm } from "@nickbabcock/plugin-wasm";
import typescript from "@rollup/plugin-typescript";
import path from "path";
import fs from "fs";
const outdir = (fmt, env) => {
if (env == "node") {
return `dist/node`;
} else {
return `dist/${fmt}${env == "slim" ? "-slim" : ""}`;
}
};
const rolls = (fmt, env) => ({
input: env !== "slim" ? "src/index.ts" : "src/index_slim.ts",
output: {
dir: outdir(fmt, env),
format: fmt,
entryFileNames: `[name].${fmt === "cjs" ? "cjs" : "js"}`,
name: "tantivy",
},
plugins: [
// We want to inline our wasm bundle as base64. Not needing browser users
// to fetch an additional asset is a boon as there's less room for errors
env != "slim" &&
wasm(
env == "node"
? { maxFileSize: 0, targetEnv: "node" }
: { targetEnv: "auto-inline" }
),
typescript({ outDir: outdir(fmt, env), rootDir: "src" }),
{
name: "copy-pkg",
// wasm-bindgen outputs a import.meta.url when using the web target.
// rollup will either perserve the the statement when outputting an esm,
// which will cause webpack < 5 to choke or it will output a
// "require('url')", for other output types, causing more choking. Since
// we want a downstream developer to either not worry about providing wasm
// at all, or forcing them to deal with bundling, we resolve the import to
// an empty string. This will error at runtime.
resolveImportMeta: () => `""`,
generateBundle() {
// copy the typescript definitions that wasm-bindgen creates into the
// distribution so that downstream users can benefit from documentation
// on the rust code
const dir = outdir(fmt, env);
fs.mkdirSync(path.resolve(`${dir}/pkg`), { recursive: true });
fs.copyFileSync(
path.resolve("./src/pkg/tantivy_js.d.ts"),
path.resolve(`${dir}/pkg/tantivy_js.d.ts`)
);
},
},
],
});
export default [
rolls("umd", "fat"),
rolls("es", "fat"),
rolls("cjs", "fat"),
rolls("cjs", "node"),
rolls("es", "slim"),
rolls("cjs", "slim"),
];