certd/packages/libs/lib-huawei/fix-esm-import-paths.js

97 lines
2.8 KiB
JavaScript

import * as fs from "fs";
import * as path from "path";
// https://gist.github.com/lovasoa/8691344
async function* walk(dir) {
for await (const d of await fs.promises.opendir(dir)) {
const entry = path.join(dir, d.name);
if (d.isDirectory()) {
yield* walk(entry);
} else if (d.isFile()) {
yield entry;
}
}
}
function resolveImportPath(sourceFile, importPath, options) {
const sourceFileAbs = path.resolve(process.cwd(), sourceFile);
const root = path.dirname(sourceFileAbs);
const { moduleFilter = defaultModuleFilter } = options;
if (moduleFilter(importPath)) {
const importPathAbs = path.resolve(root, importPath);
let possiblePath = [path.resolve(importPathAbs, "./index.ts"), path.resolve(importPathAbs, "./index.js"), importPathAbs + ".ts", importPathAbs + ".js"];
if (possiblePath.length) {
for (let i = 0; i < possiblePath.length; i++) {
let entry = possiblePath[i];
if (fs.existsSync(entry)) {
const resolved = path.relative(root, entry.replace(/\.ts$/, ".js"));
if (!resolved.startsWith(".")) {
return "./" + resolved;
}
return resolved;
}
}
}
}
return null;
}
function replace(filePath, outFilePath, options) {
const code = fs.readFileSync(filePath).toString();
const newCode = code.replace(/(import|export) (.+?) from ('[^\n']+'|"[^\n"]+");/gs, function (found, action, imported, from) {
const importPath = from.slice(1, -1);
let resolvedPath = resolveImportPath(filePath, importPath, options);
if (resolvedPath) {
resolvedPath = resolvedPath.replaceAll("\\", "/");
console.log("\t", importPath, resolvedPath);
return `${action} ${imported} from "${resolvedPath}";`;
}
return found;
});
if (code !== newCode) {
fs.writeFileSync(outFilePath, newCode);
}
}
// Then, use it with a simple async for loop
async function run(srcDir, options = defaultOptions) {
const { sourceFileFilter = defaultSourceFileFilter } = options;
for await (const entry of walk(srcDir)) {
if (sourceFileFilter(entry)) {
console.log(entry);
replace(entry, entry, options);
}
}
}
const defaultSourceFileFilter = function (sourceFilePath) {
return /\.(js|ts)$/.test(sourceFilePath) && !/node_modules/.test(sourceFilePath);
};
const defaultModuleFilter = function (importedModule) {
return !path.isAbsolute(importedModule) && !importedModule.startsWith("@") && !importedModule.endsWith(".js");
};
const defaultOptions = {
sourceFileFilter: defaultSourceFileFilter,
moduleFilter: defaultModuleFilter,
};
// Switch this to test on one file or directly run on a directory.
const DEBUG = false;
if (DEBUG) {
replace("./src/index.ts", "./out.ts", defaultOptions);
} else {
await run("./src/", defaultOptions);
}