balena-cli/lib/actions/logs.coffee
2018-10-29 22:29:02 +01:00

62 lines
1.6 KiB
CoffeeScript

###
Copyright 2016-2017 Balena
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
###
{ normalizeUuidProp } = require('../utils/normalization')
module.exports =
signature: 'logs <uuid>'
description: 'show device logs'
help: '''
Use this command to show logs for a specific device.
By default, the command prints all log messages and exit.
To continuously stream output, and see new logs in real time, use the `--tail` option.
Examples:
$ balena logs 23c73a1
$ balena logs 23c73a1
'''
options: [
{
signature: 'tail'
description: 'continuously stream output'
boolean: true
alias: 't'
}
]
permission: 'user'
primary: true
action: (params, options, done) ->
normalizeUuidProp(params)
balena = require('balena-sdk').fromSharedOptions()
moment = require('moment')
printLine = (line) ->
timestamp = moment(line.timestamp).format('DD.MM.YY HH:mm:ss (ZZ)')
console.log("#{timestamp} #{line.message}")
if options.tail
balena.logs.subscribe(params.uuid, { count: 100 }).then (logs) ->
logs.on('line', printLine)
logs.on('error', done)
.catch(done)
else
balena.logs.history(params.uuid)
.each(printLine)
.catch(done)