Class: LibGems::Commands::FetchCommand

Inherits:
LibGems::Command show all
Includes:
LocalRemoteOptions, VersionOption
Defined in:
lib/libgems/commands/fetch_command.rb

Instance Attribute Summary

Attributes inherited from LibGems::Command

#command, #defaults, #options, #program_name, #summary

Instance Method Summary collapse

Methods included from VersionOption

#add_platform_option, #add_prerelease_option, #add_version_option

Methods included from LocalRemoteOptions

#accept_uri_http, #add_bulk_threshold_option, #add_local_remote_options, #add_proxy_option, #add_source_option, #add_update_sources_option, #both?, #local?, #remote?

Methods inherited from LibGems::Command

add_common_option, #add_extra_args, #add_option, add_specific_extra_args, #begins?, build_args, build_args=, common_options, #description, extra_args, extra_args=, #get_all_gem_names, #get_one_gem_name, #get_one_optional_argument, #handle_options, #handles?, #invoke, #merge_options, #remove_option, #show_help, #show_lookup_failure, specific_extra_args, specific_extra_args_hash, #when_invoked

Methods included from UserInteraction

#methname

Methods included from DefaultUserInteraction

ui, #ui, ui=, #ui=, use_ui, #use_ui

Constructor Details

#initialize ⇒ FetchCommand

Returns a new instance of FetchCommand.



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# File 'lib/libgems/commands/fetch_command.rb', line 11

def initialize
  super 'fetch', 'Download a gem and place it in the current directory'

  add_bulk_threshold_option
  add_proxy_option
  add_source_option

  add_version_option
  add_platform_option
  add_prerelease_option
end

Instance Method Details

#arguments ⇒ Object

:nodoc:



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# File 'lib/libgems/commands/fetch_command.rb', line 23

def arguments # :nodoc:
  'GEMNAME       name of gem to download'
end

#defaults_str ⇒ Object

:nodoc:



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# File 'lib/libgems/commands/fetch_command.rb', line 27

def defaults_str # :nodoc:
  "--version '#{LibGems::Requirement.default}'"
end

#execute ⇒ Object 



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# File 'lib/libgems/commands/fetch_command.rb', line 35

def execute
  version = options[:version] || LibGems::Requirement.default
  all = LibGems::Requirement.default != version

  platform  = LibGems.platforms.last
  gem_names = get_all_gem_names

  gem_names.each do |gem_name|
    dep = LibGems::Dependency.new gem_name, version
    dep.prerelease = options[:prerelease]

    # Because of the madness that is SpecFetcher, you can't
    # set both all and prerelease to true. If you do, prerelease
    # is ignored.

    if dep.prerelease? and all
      specs_and_sources, errors =
        LibGems::SpecFetcher.fetcher.fetch_with_errors(dep, false, true,
                                                   dep.prerelease?)
    else
      specs_and_sources, errors =
        LibGems::SpecFetcher.fetcher.fetch_with_errors(dep, all, true,
                                                   dep.prerelease?)
    end


    if platform then
      filtered = specs_and_sources.select { |s,| s.platform == platform }
      specs_and_sources = filtered unless filtered.empty?
    end

    spec, source_uri = specs_and_sources.sort_by { |s,| s.version }.last

    if spec.nil? then
      show_lookup_failure gem_name, version, errors, options[:domain]
      next
    end

    path = LibGems::RemoteFetcher.fetcher.download spec, source_uri
    FileUtils.mv path, spec.file_name

    say "Downloaded #{spec.full_name}"
  end
end

#usage ⇒ Object

:nodoc:



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# File 'lib/libgems/commands/fetch_command.rb', line 31

def usage # :nodoc:
  "#{program_name} GEMNAME [GEMNAME ...]"
end