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https://github.com/balena-io/balena-cli.git
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50 lines
1.3 KiB
CoffeeScript
50 lines
1.3 KiB
CoffeeScript
_ = require('lodash')
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PubNub = require('pubnub')
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resin = require('../resin')
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helpers = require('../helpers/helpers')
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cli = require('../cli/cli')
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LOGS_HISTORY_COUNT = 200
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getLogData = (logs) ->
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return logs[0] if _.isArray(logs)
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return logs
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printLogs = (logs, number) ->
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logs = getLogData(logs)
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logs = _.last(logs, number) if _.isNumber(number)
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resin.log.array(logs, resin.log.out)
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exports.logs = (uuid) ->
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numberOfLines = cli.getArgument('num', _.parseInt)
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tailOutput = cli.getArgument('tail') or false
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if numberOfLines? and not _.isNumber(numberOfLines)
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resin.errors.handle(new Error('n/num should be a number'))
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helpers.isDeviceUUIDValid uuid, (error, isValidUUID) ->
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resin.errors.handle(error) if error?
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if not isValidUUID
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return resin.errors.handle(new Error('Invalid UUID'))
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# PubNub needs to be initialised after logs
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# action was called, otherwise it prevents
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# all other actions from exiting on completion
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pubnub = PubNub.init(resin.settings.get('pubnub'))
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channel = _.template(resin.settings.get('events.deviceLogs'), { uuid })
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pubnub.history
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count: LOGS_HISTORY_COUNT
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channel: channel
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callback: (logs) ->
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printLogs(logs, numberOfLines)
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if not tailOutput or numberOfLines?
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process.exit(0)
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if tailOutput
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pubnub.subscribe
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channel: channel
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callback: printLogs
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