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node-mini-migrations
Advanced tools
A very small, lightweight and flexible migrations library unconcerned with what database you use
A really simple node migrations library that is completely independant of any database or file system.
You need to define a driver for example:
npm install node-mini-migrations
# migrations/driver.js
const fs = require('fs')
// `passedFunctions` are passed to each migration file and can container
// a database, like mysql, postgres, mongodb, or anything you want.
// It just returns an object that gets passed to migrations.
const passedFunctions = {
tableCreate: (table) => {
console.log('would create a table', table)
},
tableDrop: (table) => {
console.log('would drop a table', table)
},
insert: (row) => {
console.log('would insert a row', row)
},
remove: (row) => {
console.log('would remove a row', row)
}
}
module.exports = {
init: () => {
if (!fs.existsSync('test_state.json')) {
fs.writeFileSync('test_state.json', JSON.stringify({}))
}
},
finish: () => {
console.log('finished migrations')
},
getMigrationState: (id) => {
const state = JSON.parse(
fs.readFileSync('test_state.json', 'utf8')
)
return state[id]
},
setMigrationUp: (id) => {
const state = JSON.parse(
fs.readFileSync('test_state.json', 'utf8')
)
state[id] = true
fs.writeFileSync('test_state.json', JSON.stringify(state))
},
setMigrationDown: (id) => {
const state = JSON.parse(
fs.readFileSync('test_state.json', 'utf8')
)
delete state[id]
fs.writeFileSync('test_state.json', JSON.stringify(state))
},
getPassedFunctions: () => passedFunctions
}
You can then create typical migrations files like:
# migrations/1-my-migration-example.js
module.exports = {
up: db => {
return db.tableCreate('test_table')
},
down: db => {
return db.tableDrop('test_table')
}
}
You run migrator up
to bring up any migrations or migrator down
to bring them down.
const {up, prepareRun} = require('node-mini-migrations')
up(prepareRun('./migrations'))
This project is licensed under the terms of the GPLv3 license.
FAQs
A very small, lightweight and flexible migrations library unconcerned with what database you use
The npm package node-mini-migrations receives a total of 43 weekly downloads. As such, node-mini-migrations popularity was classified as not popular.
We found that node-mini-migrations demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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