I'm trying to build a simple cli app, but I'm getting file not found. The app runs well if I run it in the same directory as the file.
after installing the app globally, it can't find the file.npm i -g .
$ tran
Hello World CLI
But if switch directories, I get file not found
Error: ENOENT: no such file or directory, open './hello
bin/index.js
#! /usr/bin/env node
import { hello } from '../index.js';
console.log(hello());
index.js
import fs from 'fs';
export function hello() {
return fs.readFileSync('./hello', 'utf8');
}
package.json
"bin": {
"tran": "./bin/index.js"
},
"type": "module",
Also tried using path
import fs from 'fs';
import path from 'path';
export function hello() {
return fs.readFileSync(path.resolve(path.dirname(''),'./hello'), 'utf8');
}
CodePudding user response:
fs.readFileSync
resolves relative paths basing on the current process directory (i.e. process.cwd()
). To access a file in the same directory as the current module (the module that contains the import
) you can create URL based on the current URL plus a relative part in the form
new URL(relativePath, import.meta.url)
So, in the case of your index.js:
import fs from 'fs';
export function hello() {
return fs.readFileSync(new URL('hello', import.meta.url), 'utf8');
}