100 lines
2.9 KiB
Plaintext
100 lines
2.9 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "default", {
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enumerable: true,
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get: function() {
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return getModuleDependencies;
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}
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});
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const _fs = /*#__PURE__*/ _interop_require_default(require("fs"));
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const _path = /*#__PURE__*/ _interop_require_default(require("path"));
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function _interop_require_default(obj) {
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return obj && obj.__esModule ? obj : {
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default: obj
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};
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}
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let jsExtensions = [
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".js",
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".cjs",
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".mjs"
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];
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// Given the current file `a.ts`, we want to make sure that when importing `b` that we resolve
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// `b.ts` before `b.js`
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//
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// E.g.:
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//
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// a.ts
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// b // .ts
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// c // .ts
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// a.js
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// b // .js or .ts
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let jsResolutionOrder = [
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"",
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".js",
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".cjs",
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".mjs",
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".ts",
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".cts",
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".mts",
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".jsx",
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".tsx"
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];
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let tsResolutionOrder = [
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"",
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".ts",
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".cts",
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".mts",
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".tsx",
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".js",
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".cjs",
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".mjs",
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".jsx"
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];
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function resolveWithExtension(file, extensions) {
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// Try to find `./a.ts`, `./a.ts`, ... from `./a`
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for (let ext of extensions){
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let full = `${file}${ext}`;
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if (_fs.default.existsSync(full) && _fs.default.statSync(full).isFile()) {
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return full;
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}
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}
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// Try to find `./a/index.js` from `./a`
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for (let ext of extensions){
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let full = `${file}/index${ext}`;
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if (_fs.default.existsSync(full)) {
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return full;
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}
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}
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return null;
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}
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function* _getModuleDependencies(filename, base, seen, ext = _path.default.extname(filename)) {
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// Try to find the file
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let absoluteFile = resolveWithExtension(_path.default.resolve(base, filename), jsExtensions.includes(ext) ? jsResolutionOrder : tsResolutionOrder);
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if (absoluteFile === null) return; // File doesn't exist
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// Prevent infinite loops when there are circular dependencies
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if (seen.has(absoluteFile)) return; // Already seen
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seen.add(absoluteFile);
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// Mark the file as a dependency
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yield absoluteFile;
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// Resolve new base for new imports/requires
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base = _path.default.dirname(absoluteFile);
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ext = _path.default.extname(absoluteFile);
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let contents = _fs.default.readFileSync(absoluteFile, "utf-8");
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// Find imports/requires
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for (let match of [
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...contents.matchAll(/import[\s\S]*?['"](.{3,}?)['"]/gi),
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...contents.matchAll(/import[\s\S]*from[\s\S]*?['"](.{3,}?)['"]/gi),
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...contents.matchAll(/require\(['"`](.+)['"`]\)/gi)
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]){
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// Bail out if it's not a relative file
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if (!match[1].startsWith(".")) continue;
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yield* _getModuleDependencies(match[1], base, seen, ext);
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}
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}
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function getModuleDependencies(absoluteFilePath) {
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if (absoluteFilePath === null) return new Set();
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return new Set(_getModuleDependencies(absoluteFilePath, _path.default.dirname(absoluteFilePath), new Set()));
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}
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