123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129 |
- import { readFileSync } from 'node:fs';
- import { dirname, resolve, sep } from 'node:path';
- import { fileURLToPath } from 'node:url';
- const NM = `${sep}node_modules${sep}`;
- const STORE = `.store${sep}`;
- const PKG = `${sep}package${sep}`;
- const DIST = `${sep}dist${sep}`;
- /**
- * Find the package.json file, either from a TypeScript file somewhere not
- * in a 'dist' folder, or a built and/or installed 'dist' folder.
- *
- * Note: this *only* works if you build your code into `'./dist'`, and that the
- * source path does not also contain `'dist'`! If you don't build into
- * `'./dist'`, or if you have files at `./src/dist/dist.ts`, then this will
- * not work properly!
- *
- * The default `pathFromSrc` option assumes that the calling code lives one
- * folder below the root of the package. Otherwise, it must be specified.
- *
- * Example:
- *
- * ```ts
- * // src/index.ts
- * import { findPackageJson } from 'package-json-from-dist'
- *
- * const pj = findPackageJson(import.meta.url)
- * console.log(`package.json found at ${pj}`)
- * ```
- *
- * If the caller is deeper within the project source, then you must provide
- * the appropriate fallback path:
- *
- * ```ts
- * // src/components/something.ts
- * import { findPackageJson } from 'package-json-from-dist'
- *
- * const pj = findPackageJson(import.meta.url, '../../package.json')
- * console.log(`package.json found at ${pj}`)
- * ```
- *
- * When running from CommmonJS, use `__filename` instead of `import.meta.url`
- *
- * ```ts
- * // src/index.cts
- * import { findPackageJson } from 'package-json-from-dist'
- *
- * const pj = findPackageJson(__filename)
- * console.log(`package.json found at ${pj}`)
- * ```
- */
- export const findPackageJson = (from, pathFromSrc = '../package.json') => {
- const f = typeof from === 'object' || from.startsWith('file://') ?
- fileURLToPath(from)
- : from;
- const __dirname = dirname(f);
- const nms = __dirname.lastIndexOf(NM);
- if (nms !== -1) {
- // inside of node_modules. find the dist directly under package name.
- const nm = __dirname.substring(0, nms + NM.length);
- const pkgDir = __dirname.substring(nms + NM.length);
- // affordance for yarn berry, which puts package contents in
- // '.../node_modules/.store/${id}-${hash}/package/...'
- if (pkgDir.startsWith(STORE)) {
- const pkg = pkgDir.indexOf(PKG, STORE.length);
- if (pkg) {
- return resolve(nm, pkgDir.substring(0, pkg + PKG.length), 'package.json');
- }
- }
- const pkgName = pkgDir.startsWith('@') ?
- pkgDir.split(sep, 2).join(sep)
- : String(pkgDir.split(sep)[0]);
- return resolve(nm, pkgName, 'package.json');
- }
- else {
- // see if we are in a dist folder.
- const d = __dirname.lastIndexOf(DIST);
- if (d !== -1) {
- return resolve(__dirname.substring(0, d), 'package.json');
- }
- else {
- return resolve(__dirname, pathFromSrc);
- }
- }
- };
- /**
- * Load the package.json file, either from a TypeScript file somewhere not
- * in a 'dist' folder, or a built and/or installed 'dist' folder.
- *
- * Note: this *only* works if you build your code into `'./dist'`, and that the
- * source path does not also contain `'dist'`! If you don't build into
- * `'./dist'`, or if you have files at `./src/dist/dist.ts`, then this will
- * not work properly!
- *
- * The default `pathFromSrc` option assumes that the calling code lives one
- * folder below the root of the package. Otherwise, it must be specified.
- *
- * Example:
- *
- * ```ts
- * // src/index.ts
- * import { loadPackageJson } from 'package-json-from-dist'
- *
- * const pj = loadPackageJson(import.meta.url)
- * console.log(`Hello from ${pj.name}@${pj.version}`)
- * ```
- *
- * If the caller is deeper within the project source, then you must provide
- * the appropriate fallback path:
- *
- * ```ts
- * // src/components/something.ts
- * import { loadPackageJson } from 'package-json-from-dist'
- *
- * const pj = loadPackageJson(import.meta.url, '../../package.json')
- * console.log(`Hello from ${pj.name}@${pj.version}`)
- * ```
- *
- * When running from CommmonJS, use `__filename` instead of `import.meta.url`
- *
- * ```ts
- * // src/index.cts
- * import { loadPackageJson } from 'package-json-from-dist'
- *
- * const pj = loadPackageJson(__filename)
- * console.log(`Hello from ${pj.name}@${pj.version}`)
- * ```
- */
- export const loadPackageJson = (from, pathFromSrc = '../package.json') => JSON.parse(readFileSync(findPackageJson(from, pathFromSrc), 'utf8'));
- //# sourceMappingURL=index.js.map
|