read-ini/dist/index.js

Read and parse INI or ENV files

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.readIniFile = readIniFile;
const node_fs_1 = require("node:fs");
/**
 * Reads and parses an INI (or `./env`) file, with an optional value-type converter.
 *
 * - section `[name]` namespaces are supported:
 *   - When a section appears multiple times, its inner values are extended.
 *   - Sections called `global` (case-insensitive) expose global variables.
 *   - Sections support aliasing: `[section "alias"]`, with the alias used as
 *     override for the section name.
 * - each variable must be in the form of `name = value`
 * - spaces surrounding `=`, `value` or section names are ignored
 * - the `value` is taken until the end of line
 * - lines that start with `;` or `#` are skipped
 */
function readIniFile(iniFile, cb) {
    const lines = (0, node_fs_1.readFileSync)(iniFile, 'utf-8')
        .replace(/\r/g, '')
        .split('\n')
        .map(a => a.trim())
        .filter(f => f.length > 1 && f[0] !== ';' && f[0] !== '#');
    const result = {};
    let root = result, section;
    for (const a of lines) {
        const m = a.match(/^\s*([\w$.-]+)\s*=\s*(.*)/);
        if (m) {
            const key = m[1], value = m[2];
            root[key] = typeof cb === 'function' ? cb({ key, value, section }) : value;
        }
        else {
            const s = a.match(/\[\s*([\w$.-]+)\s*("(.*)")?\s*]/);
            if (s) {
                section = { name: s[1], alias: s[3] };
                const name = section.alias || section.name; // alias overrides name
                if (name.toLowerCase() === 'global') {
                    root = result;
                    section = undefined;
                }
                else {
                    root = result[name] ?? (result[name] = {});
                }
            }
        }
    }
    return result;
}