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* Validation utilities for CLI inputs
*/
import { existsSync } from 'fs';
import { resolve } from 'path';
/**
* Validate project name according to npm and filesystem rules
*/
export function validateProjectName(name) {
if (!name || typeof name !== 'string' || name.trim().length === 0) {
return 'Project name is required';
}
const trimmed = name.trim();
// Check length
if (trimmed.length > 214) {
return 'Project name must be less than 214 characters';
}
// Check for invalid characters (allowing @ for scoped packages)
if (!/^[a-z0-9-_@./]+$/i.test(trimmed)) {
return 'Project name can only contain letters, numbers, hyphens, underscores, dots, and slashes';
}
// Cannot start with . or _
if (trimmed.startsWith('.') || trimmed.startsWith('_')) {
return 'Project name cannot start with . or _';
}
// Cannot be reserved words
const reserved = [
'node_modules', 'favicon.ico', '.git', '.gitignore', '.env',
'package.json', 'package-lock.json', 'yarn.lock', 'pnpm-lock.yaml',
'con', 'prn', 'aux', 'nul', 'com1', 'com2', 'com3', 'com4', 'com5',
'com6', 'com7', 'com8', 'com9', 'lpt1', 'lpt2', 'lpt3', 'lpt4',
'lpt5', 'lpt6', 'lpt7', 'lpt8', 'lpt9'
];
if (reserved.includes(trimmed.toLowerCase())) {
return `Project name "${trimmed}" is reserved`;
}
// Check if directory already exists
const projectPath = resolve(trimmed);
if (existsSync(projectPath)) {
return `Directory "${trimmed}" already exists`;
}
return true;
}
/**
* Validate component/page/API name
*/
export function validateComponentName(name) {
if (!name || typeof name !== 'string' || name.trim().length === 0) {
return 'Name is required';
}
const trimmed = name.trim();
// Check for valid identifier
if (!/^[a-zA-Z][a-zA-Z0-9-_]*$/.test(trimmed)) {
return 'Name must start with a letter and contain only letters, numbers, hyphens, and underscores';
}
// Check length
if (trimmed.length > 100) {
return 'Name must be less than 100 characters';
}
// Should be PascalCase for components
if (!/^[A-Z]/.test(trimmed)) {
return 'Name should start with a capital letter (PascalCase)';
}
return true;
}
/**
* Validate file path
*/
export function validatePath(path) {
if (!path || path.trim().length === 0) {
return true; // Optional
}
const trimmed = path.trim();
// Check for invalid characters
if (!/^[a-zA-Z0-9-_/.]+$/.test(trimmed)) {
return 'Path can only contain letters, numbers, hyphens, underscores, dots, and slashes';
}
// Cannot start with /
if (trimmed.startsWith('/')) {
return 'Path should be relative (don\'t start with /)';
}
return true;
}
/**
* Validate template name
*/
export function validateTemplate(template) {
const validTemplates = [
'basic',
'fullstack',
'express',
'fastify',
'components',
'nextjs'
];
if (!validTemplates.includes(template)) {
return `Invalid template. Available: ${validTemplates.join(', ')}`;
}
return true;
} |