@pgsql/cli/dist/esm/commands/parse.js

Unified CLI for PostgreSQL AST parsing, deparsing, and code generation

import { readFileSync, writeFileSync } from 'fs';
import { resolve, join } from 'path';
import { parse } from 'pgsql-parser';
import chalk from 'chalk';
import { showHelp } from '../utils/help';
export async function parseCommand(argv) {
    if (argv.help) {
        showHelp('parse');
        process.exit(0);
    }
    const sqlFile = argv._[1];
    if (!sqlFile) {
        console.error(chalk.red('Error: SQL file required'));
        showHelp('parse');
        process.exit(1);
    }
    try {
        // Resolve file path
        const filePath = sqlFile.startsWith('/')
            ? sqlFile
            : resolve(join(process.cwd(), sqlFile));
        // Read SQL content
        const content = readFileSync(filePath, 'utf-8');
        // Parse SQL
        const ast = await parse(content);
        // Clean AST if requested
        if (argv.clean) {
            // For now, we'll skip the clean functionality until we can import it properly
            console.warn(chalk.yellow('Warning: --clean flag is not yet implemented'));
        }
        // Format output
        const format = argv.format || 'pretty';
        const output = format === 'json'
            ? JSON.stringify(ast)
            : JSON.stringify(ast, null, 2);
        // Write output
        if (argv.output) {
            writeFileSync(argv.output, output);
            console.log(chalk.green(`✓ AST written to ${argv.output}`));
        }
        else {
            process.stdout.write(output);
        }
    }
    catch (error) {
        if (error.code === 'ENOENT') {
            console.error(chalk.red(`Error: File not found: ${sqlFile}`));
        }
        else {
            console.error(chalk.red('Parse error:'), error.message || error);
        }
        process.exit(1);
    }
}