[Command::Search] Add support for `--ios` and `--osx`

Closes #625

CHANGELOG.md

@@ -13,6 +13,12 @@
   non-integrating installations.
   [#918](https://github.com/CocoaPods/CocoaPods/issues/918)
 
+###### Ancillary enhancements
+
+* The `pod search` commands now accepts the `--ios` and the `--osx` arguments
+  to filter the results by platform.
+  [#625](https://github.com/CocoaPods/CocoaPods/issues/625)
+
 
 ## 0.17.2
 [CocoaPods](https://github.com/CocoaPods/CocoaPods/compare/0.17.1...0.17.2)

lib/cocoapods/command/search.rb

@@ -14,13 +14,17 @@ module Pod
       def self.options
         [[
           "--full",  "Search by name, summary, and description",
-          "--stats", "Show additional stats (like GitHub watchers and forks)"
+          "--stats", "Show additional stats (like GitHub watchers and forks)",
+          "--ios",   "Restricts the search to Pods supported on iOS",
+          "--osx",   "Restricts the search to Pods supported on OS X",
         ]].concat(super)
       end
 
       def initialize(argv)
         @full_text_search = argv.flag?('full')
         @stats = argv.flag?('stats')
+        @supported_on_ios = argv.flag?('ios')
+        @supported_on_osx = argv.flag?('osx')
         @query = argv.shift_argument
         super
       end
@@ -32,10 +36,16 @@ module Pod
 
       def run
         sets = SourcesManager.search_by_name(@query.strip, @full_text_search)
+        if @supported_on_ios
+          sets.reject!{ |set| !set.specification.available_platforms.map(&:name).include?(:ios) }
+        end
+        if @supported_on_osx
+          sets.reject!{ |set| !set.specification.available_platforms.map(&:name).include?(:osx) }
+        end
         sets.each do |set|
           begin
             UI.pod(set, (@stats ? :stats : :normal))
-          rescue DSLError => e
+          rescue DSLError
             UI.warn "Skipping `#{set.name}` because the podspec contains errors."
           end
         end

spec/fixtures/spec-repos/test_repo/BananaLib/1.0/BananaLib.podspec

@@ -5,6 +5,8 @@ Pod::Spec.new do |s|
   s.homepage     = 'http://banana-corp.local/banana-lib.html'
   s.summary      = 'Chunky bananas!'
   s.description  = 'Full of chunky bananas.'
+  s.platform     = :ios
+
   s.source       = { :git => 'http://banana-corp.local/banana-lib.git', :tag => 'v1.0' }
   s.source_files = 'Classes/*.{h,m}', 'Vendor'
   s.xcconfig     = { 'OTHER_LDFLAGS' => '-framework SystemConfiguration' }

spec/functional/command/search_spec.rb

@@ -31,5 +31,18 @@ module Pod
       output = run_command('search', 'Engelhart', '--full')
       output.should.include? 'JSONKit'
     end
+
+    it "restricts the search to Pods supported on iOS" do
+      output = run_command('search', 'BananaLib', '--ios')
+      output.should.include? 'BananaLib'
+      Specification.any_instance.stubs(:available_platforms).returns([Platform.osx])
+      output = run_command('search', 'BananaLib', '--ios')
+      output.should.not.include? 'BananaLib'
+    end
+
+    it "restricts the search to Pods supported on iOS" do
+      output = run_command('search', 'BananaLib', '--osx')
+      output.should.not.include? 'BananaLib'
+    end
   end
 end