[#212] Check for deployment target

lib/cocoapods/command/spec.rb

@@ -491,16 +491,17 @@ Pod::Spec.new do |s|
 
   s.description = 'An optional longer description of #{data[:name]}.'
 
-  # If this Pod runs only on iOS or OS X, then specify that with one of
-  # these, or none if it runs on both platforms.
-  # If the pod runs on both plafroms but presents different deployment
-  # targets, source files, etc. create two different pods: `#{data[:name]}-iOS'
-  # and `#{data[:name]}-OSX'.
+  # If this Pod runs only on iOS or OS X, then specify the platfrom and
+  # the deployment target.
   #
+  # s.platform = :ios, '>= 5.0'
   # s.platform = :ios
-  # s.platform = :ios, { :deployment_target => "5.0" }
-  # s.platform = :osx
-  # s.platform = :osx, { :deployment_target => "10.7" }
+
+  # If this Pod runs on boths platforms, then specify the deployment
+  # targets.
+  #
+  # s.ios.deployment_target = '>= 5.0'
+  # s.osx.deployment_target = '>= 10.7'
 
   # A list of resources included with the Pod. These are copied into the
   # target bundle with a build phase script.

lib/cocoapods/resolver.rb

@@ -86,9 +86,12 @@ module Pod
     end
 
     def validate_platform!(spec)
-      plaform = @podfile.target_definitions[:default].platform
-      unless plaform.support?(spec.platform)
-        raise Informative, "The platform required by the Podfile `#{plaform}' does not match that of #{spec} `#{spec.platform}'"
+      platform = @podfile.target_definitions[:default].platform
+      unless platform.support?(spec.platform)
+        raise Informative, "The platform required by the Podfile `#{platform}' does not match that of #{spec} `#{spec.platform}'"
+      end
+      unless !platform.deployment_target || !spec.deployment_target[platform.name] || spec.deployment_target[platform.name].satisfied_by?(platform.deployment_target)
+        raise Informative, "The platform required by the Podfile `#{platform}' does not match that of #{spec} `#{spec.platform} #{spec.deployment_target[platform.name]}'".magenta
       end
     end
   end

lib/cocoapods/specification.rb

@@ -34,6 +34,7 @@ module Pod
       @define_for_platforms = [:osx, :ios]
       @clean_paths, @subspecs = [], []
       @dependencies, @source_files, @resources = { :ios => [], :osx => [] }, { :ios => [], :osx => [] }, { :ios => [], :osx => [] }
+      @deployment_target = {}
       @platform = Platform.new(nil)
       @xcconfig = { :ios => Xcodeproj::Config.new, :osx => Xcodeproj::Config.new }
       @compiler_flags = { :ios => '', :osx => '' }
@@ -116,12 +117,11 @@ module Pod
     def platform=(platform)
       if platform.class == Array
         name = platform[0]
-        options = platform[1]
+        @deployment_target[name] = Gem::Requirement.new(platform[1])
       else
         name = platform
-        options = nil
       end
-      @platform = Platform.new(name, options)
+      @platform = Platform.new(name)
     end
     attr_reader :platform
 
@@ -157,7 +157,7 @@ module Pod
         @specification, @platform = specification, platform
       end
 
-      %w{ source_files= resource= resources= xcconfig= framework= frameworks= library= libraries= compiler_flags= dependency }.each do |method|
+      %w{ source_files= resource= resources= xcconfig= framework= frameworks= library= libraries= compiler_flags= deployment_target= dependency }.each do |method|
         define_method(method) do |args|
           @specification._on_platform(@platform) do
             @specification.send(method, args)
@@ -181,6 +181,13 @@ module Pod
     end
     attr_reader :source_files
 
+    def deployment_target=(requirement)
+      @define_for_platforms.each do |platform|
+        @deployment_target[platform] = Gem::Requirement.new(requirement)
+      end
+    end
+    attr_reader :deployment_target
+
     def resources=(patterns)
       @define_for_platforms.each do |platform|
         @resources[platform] = pattern_list(patterns)