balena-cli/lib/data/data.coffee
2014-11-07 14:15:59 -04:00

28 lines
745 B
CoffeeScript

fs = require('fs')
path = require('path')
fsUtils = require('../fs-utils/fs-utils')
exports.prefix = require('./data-prefix')
haltIfNoPrefix = (callback) ->
return ->
if not exports.prefix.get()?
throw new Error('Did you forget to set a prefix?')
return callback.apply(null, arguments)
constructPath = (key) ->
prefix = exports.prefix.get()
result = path.join(prefix, key)
if not fsUtils.isValidPath(result)
throw new Error('Invalid path')
return result
exports.get = haltIfNoPrefix (key, options, callback) ->
keyPath = constructPath(key)
fs.readFile(keyPath, options, callback)
exports.set = haltIfNoPrefix (key, value, options, callback) ->
keyPath = constructPath(key)
fs.writeFile(keyPath, value, options, callback)