inspec/lib/resources/pip.rb

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# encoding: utf-8
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# author: Christoph Hartmann
# author: Dominik Richter
# Usage:
# describe pip('Jinja2') do
# it { should be_installed }
# end
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#
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class PipPackage < Inspec.resource(1)
name 'pip'
def initialize(package_name)
@package_name = package_name
end
def info
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return @info if defined?(@info)
@info = {}
@info[:type] = 'pip'
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cmd = inspec.command("#{pip_cmd} show #{@package_name}")
return @info if cmd.exit_status != 0
params = SimpleConfig.new(
cmd.stdout,
assignment_re: /^\s*([^:]*?)\s*:\s*(.*?)\s*$/,
multiple_values: false,
).params
@info[:name] = params['Name']
@info[:version] = params['Version']
@info[:installed] = true
@info
end
def installed?
info[:installed] == true
end
def version
info[:version]
end
def to_s
"Pip Package #{@package_name}"
end
private
def pip_cmd
# Pip is not on the default path for Windows, therefore we do some logic
# to find the binary on Windows
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family = inspec.os[:family]
case family
when 'windows'
# we need to detect the pip command on Windows
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cmd = inspec.command('New-Object -Type PSObject | Add-Member -MemberType NoteProperty -Name Pip -Value (Invoke-Command -ScriptBlock {where.exe pip}) -PassThru | Add-Member -MemberType NoteProperty -Name Python -Value (Invoke-Command -ScriptBlock {where.exe python}) -PassThru | ConvertTo-Json')
begin
paths = JSON.parse(cmd.stdout)
# use pip if it on system path
pipcmd = paths['Pip']
# calculate path on windows
if defined?(paths['Python']) && pipcmd.nil?
pipdir = paths['Python'].split('\\')
# remove python.exe
pipdir.pop
pipcmd = pipdir.push('Scripts').push('pip.exe').join('/')
end
rescue JSON::ParserError => _e
return nil
end
end
pipcmd || 'pip'
end
end