lamassu-server/lib/migrate-options.js
2018-11-28 22:24:48 +02:00

112 lines
3.3 KiB
JavaScript

const _ = require('lodash/fp')
const fs = require('fs')
const makeDir = require('make-dir')
const path = require('path')
const load = require('./options-loader')
// current path of lamassu-server project
const currentBasePath = path.dirname(__dirname)
// get path as array of path components
const paths = _.wrap(_.split, path.sep)
// find the index of the lamassu-server directory
// /usr/lib/node_modules/lamassu-server/certs/Lamassu_OP.pem => 3
const indexOfLs = _.flow(paths, _.wrap(_.indexOf, 'lamassu-server'))
module.exports = {run, mapKeyValuesDeep, updateOptionBasepath}
function mapKeyValuesDeep (cb, obj, key) {
if (_.isArray(obj)) {
return _.mapValues((val, key) => mapKeyValuesDeep(cb, val, key), obj)
} else if (_.isObject(obj)) {
return _.pickBy((val, key) => mapKeyValuesDeep(cb, val, key), obj)
} else {
return cb(obj, key)
}
}
function updateOptionBasepath (result, optionName) {
const currentPath = _.get(optionName, result)
// process only keys that contains
// lamassu-server dir in its path
const i = indexOfLs(currentPath)
if (i === -1) {
return
}
// workout the relative path
// /usr/lib/node_modules/lamassu-server/certs/Lamassu_OP.pem => certs/Lamassu_OP.pem
const rPath = _.drop(i + 1, paths(currentPath))
// prepend the current lamassu-server path
// certs/Lamassu_OP.pem => /usr/local/lib/node_modules/lamassu-server/certs/Lamassu_OP.pem
const newPath = _.join(path.sep, _.concat([currentBasePath], rPath))
// update this option
// if the value has changed
if (!_.isEqual(currentPath, newPath)) {
console.log(`Migrating option ${optionName} to new path ${newPath}`)
result[optionName] = newPath
}
}
async function run () {
// load defaults
const defaultOpts = require('../lamassu-default')
// load current opts
const options = load()
const currentOpts = options.opts
// check if there are new options to add
let result = _.mergeAll([defaultOpts, currentOpts])
// get all the options
// that ends with "Path" suffix
console.log(`Detected lamassu-server basepath: ${currentBasePath}`)
_.each(_.wrap(updateOptionBasepath, result),
[
'seedPath',
'caPath',
'certPath',
'keyPath',
'lamassuCaPath'
])
const shouldMigrate = !_.isEqual(result, currentOpts) || _.has('lamassuServerPath', result)
// write the resulting lamassu.json
if (shouldMigrate) {
// remove old lamassuServerPath config
result = _.omit('lamassuServerPath', result)
// find keys for which values
// have been changed
const differentValue = _.wrap(_.filter, key => !_.isEqual(result[key], currentOpts[key]))
// output affected options
const newOpts = _.pick(_.union(
// find change keys
differentValue(_.keys(result)),
// find new opts
_.difference(_.keys(result), _.keys(currentOpts))
), result)
console.log('Updating options', newOpts)
// store new lamassu.json file
fs.writeFileSync(options.path, JSON.stringify(result, null, ' '))
}
// get all the new options
// that ends with "Dir" suffix
mapKeyValuesDeep((v, k) => {
if (_.endsWith('Dir', k)) {
const path = _.attempt(() => makeDir.sync(v))
if (_.isError(path)) {
console.error(`Error while creating folder ${v}`, path)
}
}
}, result)
}