Class: LaPack::CtanProvider

Inherits:
Provider show all
Defined in:
lib/providers/ctan.rb

Instance Method Summary collapse

Methods inherited from Provider

#configure

Constructor Details

#initialize(env, params = {}) ⇒ CtanProvider

Returns a new instance of CtanProvider.



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# File 'lib/providers/ctan.rb', line 5

def initialize(env, params = {})
  super env, 'ctan', params

  ## Here is where package index stored
  @package_list = 'http://ctan.org/json/packages'
  ## Here you can find info about package
  @package_info = 'http://ctan.org/json/pkg/%s'
end

Instance Method Details

#init(dbdir) ⇒ Object 



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# File 'lib/providers/ctan.rb', line 14

def init(dbdir)
  # dbdir path
  @dbdir = dbdir
  # dbdir name
  @packages = File.join(dbdir, 'pkg')
  # Package index
  @index = File.join(dbdir, "#{@name}.json")
  # Ctan archive fetch
  @ctan_fetch = 'http://mirrors.ctan.org%s'

  FileUtils.mkdir_p(@packages) unless File.exists?(@packages)

  raise "Can't write to #{@packages}. Not a directory" unless File.directory?(@packages)
end

#install(to_dir, *packages) ⇒ Object 



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# File 'lib/providers/ctan.rb', line 42

def install(to_dir, *packages)
  packages.each do |package|
    LaPack.log("Installing #{package.blue.bold}")
    if list.select{|p| p[:name].eql?(package)}.empty?
      raise "No such package #{package.white.bold}"
    else
      install_package(package, to_dir)
    end
  end
end

#list ⇒ Object 



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# File 'lib/providers/ctan.rb', line 33

def list
  raise "Update db first" unless File.exists?(@index)
  File.open(@index, "r") {|f| JSON.parse(f.read, symbolize_names: true)}
end

#remove(*packages) ⇒ Object 



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# File 'lib/providers/ctan.rb', line 53

def remove(*packages)
  packages.each do |package|
    LaPack.log("Removing #{package.blue.bold}")
    if list.select{|p| p[:name].eql?(package)}.empty?
      raise "No such package #{package.white.bold}"
    else
      ctan_remove(package)
    end
  end
end

#show(package) ⇒ Object 



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# File 'lib/providers/ctan.rb', line 38

def show(package)
  JSON.parse(LaPack.gets(@package_info % package), symbolize_names: true)
end

#update ⇒ Object 



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# File 'lib/providers/ctan.rb', line 29

def update
  LaPack.get(@package_list, @index)
end