exodus.js
Simple postgres database migrations
Install
$ npm i -D exodusjs # short for npm install --save-dev exodusjs How Do I Use It?
$ export DATABASE_URL=postgres://postgres:@localhost:5432/database$ exodus create add-events-table # this creates a migrations/ folder in the current directory along with a new migration file! $ exodus migrate$ [EXODUS] Running 1 migration$ [EXODUS] Ran migration 20150811090001-add-events-table$ [EXODUS] Finished$ exodus rollback$ [EXODUS] Rolling back 1 migration$ [EXODUS] Rolling back migration 20150811090001-add-events-table$ [EXODUS] FinishedWhat Does A Migration Look Like?
// 20150811090001-add-events-tablevar migration = up: ` your sql goes here ` down: ` your sql goes here `; moduleexports = migration;A Real Migration
var migration = up: ` create table events ( id bigserial primary key, data json, created_at timestamp without time zone default now() ); ` down: ` drop table events; `; moduleexports = migration;How Does It Work?
When you run exodus migrate for the first time, a migrations table is created in your database and it tracks which migrations have been run.
What's With The Name?
Migrations... exodus... they're synonyms. You get it.