Module: Vidibus::Sysinfo::Traffic

Extended by:
Base
Defined in:
lib/vidibus/sysinfo/traffic.rb

Overview

Returns total traffic of this month in gigabytes.

Calls ‘vnstat`

Installation on Debian:

apt-get install vnstat
vnstat -u -i eth0

Defined Under Namespace

Classes: Result

Class Method Summary collapse

Methods included from Base

call, explain

Methods included from Helper

#round

Class Method Details

.command ⇒ Object 



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# File 'lib/vidibus/sysinfo/traffic.rb', line 36

def command
  "vnstat -m"
end

.explain(error) ⇒ Object 



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# File 'lib/vidibus/sysinfo/traffic.rb', line 61

def explain(error)
  if error.match("vnstat: command not found")
    return "vnstat is not installed. On Debian, you can install it with 'apt-get install vnstat' and 'vnstat -u -i eth0'"
  end
end

.parse(output) ⇒ Object 



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# File 'lib/vidibus/sysinfo/traffic.rb', line 40

def parse(output)
  month = /(\s*\w{3} \'\d{2})/
  traffic = /\s*(\d+(?:\.\d+)?) (ki?B|Mi?B|Gi?B|Ti?B)\s*/i
  last_month = output.split(/\r?\n/)[-3]
  if last_month && last_month.match(/#{month}#{traffic}\|#{traffic}\|#{traffic}+/m)
    input_amount = $2.to_f
    input_unit = $3
    output_amount = $4.to_f
    output_unit = $5
    Result.new({
      input: gigabytes(input_amount, input_unit),
      output: gigabytes(output_amount, output_unit)
    })
  elsif output.match("Not enough data available yet")
    Result.new({
      input: 0.0,
      output: 0.0
    })
  end
end