@pgsql/cli/dist/commands/deparse.js

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

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.deparseCommand = deparseCommand;
const fs_1 = require("fs");
const path_1 = require("path");
const pgsql_deparser_1 = require("pgsql-deparser");
const chalk_1 = __importDefault(require("chalk"));
const help_1 = require("../utils/help");
async function deparseCommand(argv) {
    if (argv.help) {
        (0, help_1.showHelp)('deparse');
        process.exit(0);
    }
    try {
        let ast;
        // Read AST from file or stdin
        if (argv.input || argv.i) {
            const inputFile = argv.input || argv.i;
            const filePath = inputFile.startsWith('/')
                ? inputFile
                : (0, path_1.resolve)((0, path_1.join)(process.cwd(), inputFile));
            const content = (0, fs_1.readFileSync)(filePath, 'utf-8');
            ast = JSON.parse(content);
        }
        else if (!process.stdin.isTTY) {
            // Read from stdin
            const chunks = [];
            for await (const chunk of process.stdin) {
                chunks.push(chunk);
            }
            const content = Buffer.concat(chunks).toString();
            ast = JSON.parse(content);
        }
        else {
            console.error(chalk_1.default.red('Error: No input provided. Use -i <file> or pipe input via stdin'));
            (0, help_1.showHelp)('deparse');
            process.exit(1);
        }
        // Deparse AST to SQL
        const sql = await (0, pgsql_deparser_1.deparse)(ast);
        // Write output
        if (argv.output || argv.o) {
            const outputFile = argv.output || argv.o;
            (0, fs_1.writeFileSync)(outputFile, sql);
            console.log(chalk_1.default.green(`✓ SQL written to ${outputFile}`));
        }
        else {
            process.stdout.write(sql);
        }
    }
    catch (error) {
        if (error.code === 'ENOENT') {
            console.error(chalk_1.default.red(`Error: File not found: ${argv.input || argv.i}`));
        }
        else if (error instanceof SyntaxError) {
            console.error(chalk_1.default.red('Error: Invalid JSON input'));
        }
        else {
            console.error(chalk_1.default.red('Deparse error:'), error.message || error);
        }
        process.exit(1);
    }
}