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// SPDX-License-Identifier: Apache-2.0
// https://github.com/SubhanshuMG/ForgeKit
import * as fs from 'fs';
import * as path from 'path';
import * as os from 'os';
import * as crypto from 'crypto';
import { EncryptedPayload } from '../types';
const STORE_DIR = path.join(os.homedir(), '.forgekit', 'envs');
function getProjectHash(projectPath: string): string {
return crypto.createHash('sha256').update(path.resolve(projectPath)).digest('hex').slice(0, 16);
}
function getProjectStoreDir(projectPath: string): string {
return path.join(STORE_DIR, getProjectHash(projectPath));
}
function deriveKey(passphrase: string, salt: Buffer): Buffer {
return crypto.scryptSync(passphrase, salt, 32);
}
export function encryptEnv(data: string, passphrase: string): EncryptedPayload {
const salt = crypto.randomBytes(16);
const key = deriveKey(passphrase, salt);
const iv = crypto.randomBytes(12);
const cipher = crypto.createCipheriv('aes-256-gcm', key, iv);
let encrypted = cipher.update(data, 'utf-8', 'hex');
encrypted += cipher.final('hex');
const tag = cipher.getAuthTag();
return {
encrypted,
salt: salt.toString('hex'),
iv: iv.toString('hex'),
tag: tag.toString('hex'),
};
}
export function decryptEnv(payload: EncryptedPayload, passphrase: string): string {
const salt = Buffer.from(payload.salt, 'hex');
const key = deriveKey(passphrase, salt);
const iv = Buffer.from(payload.iv, 'hex');
const tag = Buffer.from(payload.tag, 'hex');
const decipher = crypto.createDecipheriv('aes-256-gcm', key, iv);
decipher.setAuthTag(tag);
let decrypted = decipher.update(payload.encrypted, 'hex', 'utf-8');
decrypted += decipher.final('utf-8');
return decrypted;
}
export function pushEnv(projectPath: string, environment: string, envContent: string, passphrase: string): void {
const storeDir = getProjectStoreDir(projectPath);
if (!fs.existsSync(storeDir)) {
fs.mkdirSync(storeDir, { recursive: true, mode: 0o700 });
}
const payload = encryptEnv(envContent, passphrase);
const metadata = {
environment,
updatedAt: new Date().toISOString(),
payload,
};
const filePath = path.join(storeDir, `${environment}.enc.json`);
fs.writeFileSync(filePath, JSON.stringify(metadata, null, 2), { mode: 0o600 });
}
export function pullEnv(projectPath: string, environment: string, passphrase: string): string {
const storeDir = getProjectStoreDir(projectPath);
const filePath = path.join(storeDir, `${environment}.enc.json`);
if (!fs.existsSync(filePath)) {
throw new Error(`No stored environment "${environment}" found for this project.`);
}
const metadata = JSON.parse(fs.readFileSync(filePath, 'utf-8'));
return decryptEnv(metadata.payload, passphrase);
}
export function listEnvs(projectPath: string): string[] {
const storeDir = getProjectStoreDir(projectPath);
if (!fs.existsSync(storeDir)) return [];
return fs.readdirSync(storeDir)
.filter(f => f.endsWith('.enc.json'))
.map(f => f.replace('.enc.json', ''));
}
export function parseEnvFile(content: string): Record<string, string> {
const vars: Record<string, string> = {};
for (const line of content.split('\n')) {
const trimmed = line.trim();
if (!trimmed || trimmed.startsWith('#')) continue;
const eqIndex = trimmed.indexOf('=');
if (eqIndex === -1) continue;
const key = trimmed.slice(0, eqIndex).trim();
let value = trimmed.slice(eqIndex + 1).trim();
// Remove surrounding quotes
if ((value.startsWith('"') && value.endsWith('"')) || (value.startsWith("'") && value.endsWith("'"))) {
value = value.slice(1, -1);
}
vars[key] = value;
}
return vars;
}
export function diffEnvs(
env1: Record<string, string>,
env2: Record<string, string>
): { added: string[]; removed: string[]; changed: string[]; unchanged: string[] } {
const allKeys = new Set([...Object.keys(env1), ...Object.keys(env2)]);
const added: string[] = [];
const removed: string[] = [];
const changed: string[] = [];
const unchanged: string[] = [];
for (const key of allKeys) {
if (!(key in env1)) added.push(key);
else if (!(key in env2)) removed.push(key);
else if (env1[key] !== env2[key]) changed.push(key);
else unchanged.push(key);
}
return { added, removed, changed, unchanged };
}
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