Class: LibGems::Commands::SourcesCommand

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

Instance Attribute Summary

Attributes inherited from LibGems::Command

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

Instance Method Summary collapse

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, #arguments, #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, #usage, #when_invoked

Methods included from UserInteraction

#methname

Methods included from DefaultUserInteraction

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

Constructor Details

#initialize ⇒ SourcesCommand

Returns a new instance of SourcesCommand.



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# File 'lib/libgems/commands/sources_command.rb', line 12

def initialize
  super 'sources',
        "Manage the sources and cache file #{LibGems::NAME} uses to search for gems"

  add_option '-a', '--add SOURCE_URI', 'Add source' do |value, options|
    options[:add] = value
  end

  add_option '-l', '--list', 'List sources' do |value, options|
    options[:list] = value
  end

  add_option '-r', '--remove SOURCE_URI', 'Remove source' do |value, options|
    options[:remove] = value
  end

  add_option '-c', '--clear-all',
             'Remove all sources (clear the cache)' do |value, options|
    options[:clear_all] = value
  end

  add_option '-u', '--update', 'Update source cache' do |value, options|
    options[:update] = value
  end

  add_proxy_option
end

Instance Method Details

#defaults_str ⇒ Object 



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# File 'lib/libgems/commands/sources_command.rb', line 40

def defaults_str
  '--list'
end

#execute ⇒ Object 



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# File 'lib/libgems/commands/sources_command.rb', line 44

def execute
  options[:list] = !(options[:add] ||
                     options[:clear_all] ||
                     options[:remove] ||
                     options[:update])

  if options[:clear_all] then
    path = LibGems::SpecFetcher.fetcher.dir
    FileUtils.rm_rf path

    if not File.exist?(path) then
      say "*** Removed specs cache ***"
    elsif not File.writable?(path) then
      say "*** Unable to remove source cache (write protected) ***"
    else
      say "*** Unable to remove source cache ***"
    end

    sic = LibGems::SourceInfoCache
    remove_cache_file 'user',          sic.user_cache_file
    remove_cache_file 'latest user',   sic.latest_user_cache_file
    remove_cache_file 'system',        sic.system_cache_file
    remove_cache_file 'latest system', sic.latest_system_cache_file
  end

  if options[:add] then
    source_uri = options[:add]
    uri = URI.parse source_uri

    begin
      LibGems::SpecFetcher.fetcher.load_specs uri, 'specs'
      LibGems.sources << source_uri
      LibGems.configuration.write

      say "#{source_uri} added to sources"
    rescue URI::Error, ArgumentError
      say "#{source_uri} is not a URI"
    rescue LibGems::RemoteFetcher::FetchError => e
      yaml_uri = uri + 'yaml'
      gem_repo = LibGems::RemoteFetcher.fetcher.fetch_size yaml_uri rescue false

      if e.uri =~ /specs\.#{Regexp.escape LibGems.marshal_version}\.gz$/ and
         gem_repo then

        alert_warning <<-EOF
#{LibGems::NAME} 1.2+ index not found for:
\t#{source_uri}

Will cause #{LibGems::NAME} to revert to legacy indexes, degrading performance.
        EOF

        say "#{source_uri} added to sources"
      else
        say "Error fetching #{source_uri}:\n\t#{e.message}"
      end
    end
  end

  if options[:remove] then
    source_uri = options[:remove]

    unless LibGems.sources.include? source_uri then
      say "source #{source_uri} not present in cache"
    else
      LibGems.sources.delete source_uri
      LibGems.configuration.write

      say "#{source_uri} removed from sources"
    end
  end

  if options[:update] then
    fetcher = LibGems::SpecFetcher.fetcher

    if fetcher.legacy_repos.empty? then
      LibGems.sources.each do |update_uri|
        update_uri = URI.parse update_uri
        fetcher.load_specs update_uri, 'specs'
        fetcher.load_specs update_uri, 'latest_specs'
      end
    else
      LibGems::SourceInfoCache.cache true
      LibGems::SourceInfoCache.cache.flush
    end

    say "source cache successfully updated"
  end

  if options[:list] then
    say "*** CURRENT SOURCES ***"
    say

    LibGems.sources.each do |source|
      say source
    end
  end
end