Merge pull request #1322 from rpag/gem-search

add 'gem-search' command

CHANGELOG.md

@@ -1,6 +1,7 @@
 ### HEAD
 
 * Add 'gem-readme' command, prints the README file bundled with a rubygem
+* Add 'gem-search' command, searches for a gem with the rubygems.org HTTP API
 
 ### 0.10.1
 

lib/pry/commands/gem_search.rb

@@ -0,0 +1,40 @@
+class Pry::Command::GemSearch < Pry::ClassCommand
+  match 'gem-search'
+  description 'Search for a gem with the rubygems.org JSON API'
+  group 'Gems'
+  command_options argument_required: true
+  banner <<-BANNER
+    gem-search [options] gem
+    Search for a gem with the rubygems.org HTTP API
+  BANNER
+
+  API_ENDPOINT = 'https://rubygems.org/api/v1/search.json'
+
+  def setup
+    require 'json' unless defined?(JSON)
+    require 'net/http' unless defined?(Net::HTTP)
+  end
+
+  def options(opt)
+    opt.on :l, :limit, 'Limit the number of results (max: 30)',
+      default: 10,
+      as: Integer,
+      argument: true
+  end
+
+  def process(str)
+    uri = URI.parse(API_ENDPOINT)
+    uri.query = URI.encode_www_form(query: str)
+    gems = JSON.load Net::HTTP.get(uri)
+    _pry_.pager.page list_as_string(gems, opts[:limit])
+  end
+
+private
+  def list_as_string(gems, limit = 10)
+    gems[0..limit-1].map do |gem|
+      name, version, info = gem.values_at 'name', 'version', 'info'
+      "#{text.bold(name)} #{text.bold('v'+version)} \n#{info}\n\n"
+    end.join
+  end
+  Pry::Commands.add_command(self)
+end