Config Env

1'use strict';
2
3const fs = require('node:fs/promises');
4
5function parseEnvText(text) {
6  const values = {};
7  const lines = String(text).split(/\r?\n/);
8  for (const rawLine of lines) {
9    const line = rawLine.trim();
10    if (!line || line.startsWith('#')) {
11      continue;
12    }
13    const idx = line.indexOf('=');
14    if (idx === -1) {
15      continue;
16    }
17    const key = line.slice(0, idx).trim();
18    const value = line.slice(idx + 1);
19    values[key] = value;
20  }
21  return values;
22}
23
24async function readEnvFile(filePath) {
25  const raw = await fs.readFile(filePath, 'utf8');
26  return parseEnvText(raw);
27}
28
29async function statEnvKeys(filePath, requiredKeys) {
30  try {
31    const values = await readEnvFile(filePath);
32    const keys = {};
33    for (const key of requiredKeys) {
34      if (!(key in values)) {
35        keys[key] = 'missing';
36      } else if (String(values[key]).trim() === '') {
37        keys[key] = 'blank';
38      } else {
39        keys[key] = 'present';
40      }
41    }
42    return { exists: true, keys };
43  } catch (error) {
44    if (error && error.code === 'ENOENT') {
45      const keys = {};
46      for (const key of requiredKeys) {
47        keys[key] = 'missing';
48      }
49      return { exists: false, keys };
50    }
51    throw error;
52  }
53}
54
55module.exports = {
56  parseEnvText,
57  readEnvFile,
58  statEnvKeys,
59};