jsonDiffer.js — drizzle-orm Source File

Source Code

'use-strict';
import { diff } from 'json-diff';

export function diffForRenamedTables(pairs) {
	// raname table1 to name of table2, so we can apply diffs
	const renamed = pairs.map((it) => {
		const from = it.from;
		const to = it.to;
		const newFrom = { ...from, name: to.name };
		return [newFrom, to];
	});

	// find any alternations made to a renamed table
	const altered = renamed.map((pair) => {
		return diffForRenamedTable(pair[0], pair[1]);
	});

	return altered;
}

function diffForRenamedTable(t1, t2) {
	t1.name = t2.name;
	const diffed = diff(t1, t2) || {};
	diffed.name = t2.name;

	return findAlternationsInTable(diffed, t2.schema);
}

export function diffForRenamedColumn(t1, t2) {
	const renamed = { ...t1, name: t2.name };
	const diffed = diff(renamed, t2) || {};
	diffed.name = t2.name;

	return alternationsInColumn(diffed);
}

const update1to2 = (json) => {
	Object.entries(json).forEach(([key, val]) => {
		if ('object' !== typeof val) return;

		if (val.hasOwnProperty('references')) {
			const ref = val['references'];
			const fkName = ref['foreignKeyName'];
			const table = ref['table'];
			const column = ref['column'];
			const onDelete = ref['onDelete'];
			const onUpdate = ref['onUpdate'];
			const newRef = `${fkName};${table};${column};${onDelete ?? ''};${onUpdate ?? ''}`;
			val['references'] = newRef;
		} else {
			update1to2(val);
		}
	});
};

const mapArraysDiff = (source, diff) => {
	const sequence = [];
	let sourceIndex = 0;
	for (let i = 0; i < diff.length; i++) {
		const it = diff[i];
// ... (811 more lines)