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@zihotki
Created March 21, 2023 09:27
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import FileHound from "filehound";
import { promises as fs } from "fs";
import path from "path";
import { promisify } from "util";
//
// const packages = await FileHound.create()
// .paths(`packages`)
// .directory()
// .depth(1)
// .find();
const buildPaths = ['esnext']
for (const buildPath of buildPaths) {
const filePaths = await FileHound.create()
.paths(buildPath)
.discard("node_modules")
.ext("js")
.find()
await Promise.all(
filePaths.map(
async filePath => {
const initialContents = await fs.readFile(
filePath,
"utf-8"
);
const statements = initialContents.match(/(?:(?:import|export)(?: .+ from)? ["'].+["'];|(?:import\(["'].+["']\)))/g);
if (!statements) {
return;
}
const importMap = process.env.IMPORT_MAP ? JSON.parse(await fs.readFile(process.env.IMPORT_MAP, "utf-8")) : undefined;
const contents = await statements.reduce(
async (contentsPromise, statement) => {
const contents = await contentsPromise;
const url = statement.match(/["'](.+)["']/)[1];
if (importMap?.imports?.[url]) {
const replacement = importMap.imports[url];
if (!replacement.includes("./src")) {
return contents.replace(
statement,
statement.replace(url, replacement)
);
}
const shift = filePath
.split("/")
// Skip top folder + file
.slice(2)
// Replace with shift up directory
.map(() => "..")
.join("/");
return contents.replace(
statement,
statement.replace(url, replacement.replace("./src", shift).replace(/\.tsx?$/, ".js"))
);
} else {
return contents.replace(
statement,
await getReplacement(url)
);
}
async function getReplacement(url) {
const [stat, indexStat] = await Promise.all([
fs.stat(path.resolve(path.dirname(filePath), url + ".js")).catch(() => {}),
fs.stat(path.resolve(path.dirname(filePath), url + "/index.js")).catch(() => {})
]);
if (stat && stat.isFile()) {
return statement.replace(url, url + ".js");
} else if (indexStat && indexStat.isFile()) {
return statement.replace(url, url + "/index.js");
}
return statement;
}
},
Promise.resolve(initialContents)
);
await fs.writeFile(filePath, contents, "utf-8");
}
)
);
}
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