Add more detail log for one pod has multiple targets

lib/cocoapods-binary/Integration.rb

@@ -2,6 +2,7 @@
 require_relative 'helper/feature_switches'
 require_relative 'helper/prebuild_sandbox'
 require_relative 'helper/passer'
+require_relative 'helper/target_checker'
 
 
 # NOTE:
@@ -128,18 +129,12 @@ def remove_target_files_if_needed
             # call original
             old_method2.bind(self).()
 
+            # check the pods
+            # Although we have did it in prebuild stage, it's not sufficient.
+            # Same pod may appear in another target in form of source code.
+            Prebuild.check_one_pod_should_have_only_one_target(self.prebuild_pod_targets)
 
-            # check the prebuilt targets 
-            targets = self.prebuild_pod_targets
-            targets_have_different_platforms = targets.select {|t| t.pod_name != t.name }
-
-            if targets_have_different_platforms.count > 0
-                names = targets_have_different_platforms.map(&:pod_name)
-                STDERR.puts "[!] Binary doesn't support pods who integrate in 2 or more platforms simultaneously: #{names}".red
-                exit
-            end
-
-
+            #
             specs = self.analysis_result.specifications
             prebuilt_specs = (specs.select do |spec|
                 self.prebuild_pod_names.include? spec.root.name

lib/cocoapods-binary/Prebuild.rb

@@ -1,5 +1,7 @@
 require_relative 'rome/build_framework'
 require_relative 'helper/passer'
+require_relative 'helper/target_checker'
+
 
 # patch prebuild ability
 module Pod
@@ -67,6 +69,10 @@ def install_when_cache_hit!
         # Build the needed framework files
         def prebuild_frameworks! 
 
+            # check
+            # give a early warning, instead of after compiling all the pods
+            Prebuild.check_one_pod_should_have_only_one_target(self.pod_targets)
+
             # build options
             sandbox_path = sandbox.root
             existed_framework_folder = sandbox.generate_framework_path
@@ -98,7 +104,9 @@ def prebuild_frameworks!
                     sum
                 end
                 targets = root_names_to_update.map do |root_name|
-                    name_to_target_hash[root_name]
+                    t = name_to_target_hash[root_name]
+                    raise "There's no target named (#{root_name}) in Pod.xcodeproj.\n #{name_to_target_hash.keys}" if t.nil?
+                    t
                 end || []
 
                 # add the dendencies
@@ -111,12 +119,14 @@ def prebuild_frameworks!
             targets = targets.reject {|pod_target| sandbox.local?(pod_target.pod_name) }
 
 
-
             # build!
             Pod::UI.puts "Prebuild frameworks (total #{targets.count})"
             Pod::Prebuild.remove_build_dir(sandbox_path)
             targets.each do |target|
-                next unless target.should_build?
+                if !target.should_build?
+                    UI.puts "Prebuilding #{target.label}"
+                    next
+                end
 
                 output_path = sandbox.framework_folder_path_for_pod_name(target.name)
                 output_path.mkpath unless output_path.exist?

lib/cocoapods-binary/helper/target_checker.rb

@@ -0,0 +1,49 @@
+
+module Pod
+  class Prebuild
+
+    # Check the targets, for the current limitation of the plugin
+    #
+    # @param [Array<PodTarget>] prebuilt_targets
+    def self.check_one_pod_should_have_only_one_target(prebuilt_targets)
+
+      targets_have_different_platforms = prebuilt_targets.select {|t| t.pod_name != t.name }
+
+      if targets_have_different_platforms.count > 0
+        names = targets_have_different_platforms.map(&:pod_name)
+        raw_names = targets_have_different_platforms.map(&:name)
+        message = "Oops, you came across a limitation of cocoapods-binary.
+
+The plugin requires that one pod should have ONLY ONE target in the 'Pod.xcodeproj'. There are mainly 2 situations \
+causing this problem:
+
+1. One pod integrates in 2 or more different platforms' targets. e.g.
+    ```
+    target 'iphoneApp' do
+      pod 'A', :binary => true
+    end
+    target 'watchApp' do
+      pod 'A'
+    end
+    ```
+
+2. Use different subspecs in multiple targets. e.g.
+    ```
+    target 'iphoneApp' do
+      pod 'A/core'
+      pod 'A/network'
+    end
+    target 'iphoneAppTest' do
+      pod 'A/core'
+    end
+    ```
+
+Related pods: #{names}, target names: #{raw_names}
+        "
+        raise Informative, message
+      end
+    end
+
+
+  end
+end