@launchql/migrate/esm/resolve.js

PostgreSQL Migration Tools

import { readFileSync } from 'fs';
import { getDeps } from './deps';
import { getExtensionName } from './extensions';
/**
 * Resolves SQL scripts for deployment or reversion.
 *
 * @param pkgDir - The package directory (defaults to the current working directory).
 * @param scriptType - The type of script to resolve (`deploy` or `revert`).
 * @returns A single concatenated SQL script as a string.
 */
export const resolve = (pkgDir = process.cwd(), scriptType = 'deploy') => {
    const sqlfile = [];
    const name = getExtensionName(pkgDir);
    const { resolved, external } = getDeps(pkgDir, name);
    const scripts = scriptType === 'revert' ? [...resolved].reverse() : resolved;
    for (const script of scripts) {
        if (external.includes(script))
            continue;
        const file = `${pkgDir}/${scriptType}/${script}.sql`;
        const dscript = readFileSync(file, 'utf-8');
        sqlfile.push(dscript);
    }
    return sqlfile.join('\n');
};
/**
 * Resolves SQL scripts based on the `sqitch.plan` file.
 *
 * @param pkgDir - The package directory (defaults to the current working directory).
 * @param scriptType - The type of script to resolve (`deploy` or `revert`).
 * @returns A single concatenated SQL script as a string.
 */
export const resolveWithPlan = (pkgDir = process.cwd(), scriptType = 'deploy') => {
    const sqlfile = [];
    const plan = readFileSync(`${pkgDir}/sqitch.plan`, 'utf-8');
    let resolved = plan
        .split('\n')
        .filter((line) => line.trim().length > 0 && // Exclude empty lines
        !line.trim().startsWith('%') && // Exclude initial project settings
        !line.trim().startsWith('@') // Exclude tags
    )
        .map((line) => line.split(' ')[0]);
    if (scriptType === 'revert') {
        resolved = resolved.reverse();
    }
    for (const script of resolved) {
        const file = `${pkgDir}/${scriptType}/${script}.sql`;
        const dscript = readFileSync(file, 'utf-8');
        sqlfile.push(dscript);
    }
    return sqlfile.join('\n');
};