Class: Derelict::Parser::PluginList

Inherits:
Derelict::Parser show all
Extended by:
Memoist
Defined in:
lib/derelict/parser/plugin_list.rb,
lib/derelict/parser/plugin_list/invalid_format.rb,
lib/derelict/parser/plugin_list/needs_reinstall.rb

Overview

Parses the output of “vagrant plugin list”

Defined Under Namespace

Classes: InvalidFormat, NeedsReinstall

Constant Summary collapse

PARSE_PLUGIN =

Regexp to parse a plugin line into a plugin name and version

Capture groups:

1. Plugin name, as listed in the output
2. Currently installed version (without surrounding brackets)

%r[
  ^([A-Za-z0-9\-_.]+) # Plugin name starts at the start of the line.
  \                   # Version is separated by a space character,
  \(                  # surrounded by brackets,
    ([0-9\-_.]+)      # consists of numbers, hyphens, underscore, dot,
    (, .*)?           # optionally followed by a comma space and word
  \)
  $                   # at the end of the line.
]x
NEEDS_REINSTALL =

Regexp to determine whether plugins need to be reinstalled

%r[
  ^The\splugins\sbelow\swill\snot\sbe\sloaded\suntil\sthey're\s
  uninstalled\sand\sreinstalled:$
]x

Instance Attribute Summary

Attributes inherited from Derelict::Parser

#output

Instance Method Summary collapse

Methods inherited from Derelict::Parser

#initialize

Methods included from Utils::Logger

#logger

Constructor Details

This class inherits a constructor from Derelict::Parser

Instance Method Details

#description ⇒ Object

Provides a description of this Parser

Mainly used for log messages.



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# File 'lib/derelict/parser/plugin_list.rb', line 46

def description
  "Derelict::Parser::PluginList instance"
end

#needs_reinstall? ⇒ Boolean

Determines if old plugins need to be reinstalled

Returns:

  • (Boolean) 


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# File 'lib/derelict/parser/plugin_list.rb', line 39

def needs_reinstall?
  output =~ NEEDS_REINSTALL
end

#plugins ⇒ Object

Retrieves a Set containing all the plugins from the output

Raises:



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# File 'lib/derelict/parser/plugin_list.rb', line 33

def plugins
  raise NeedsReinstall, output if needs_reinstall?
  plugin_lines.map {|l| parse_line l.match(PARSE_PLUGIN) }.to_set
end