[InstallationOptions] Add #share_schemes_for_development_pods

This allows for opting out of sharing schemes for development pods.
By default, the current behavior is kept -- all dev pods have their
schemes shared. By setting the option to `nil` or `false`, no schemes
are shared. Otherwise, an array can be passed, and only dev pod names that
match elements of that array will have their schemes shared.

lib/cocoapods/installer.rb

@@ -703,10 +703,29 @@ module Pod
     #
     def share_development_pod_schemes
       development_pod_targets.select(&:should_build?).each do |pod_target|
+        next unless share_scheme_for_development_pod?(pod_target.pod_name)
         Xcodeproj::XCScheme.share_scheme(pods_project.path, pod_target.label)
       end
     end
 
+    # @param  [String] pod The root name of the development pod.
+    #
+    # @return [Bool] whether the scheme for the given development pod should be
+    #         shared.
+    #
+    def share_scheme_for_development_pod?(pod)
+      case dev_pods_to_share = installation_options.share_schemes_for_development_pods
+      when TrueClass, FalseClass, NilClass
+        dev_pods_to_share
+      when Array
+        dev_pods_to_share.any? { |dev_pod| dev_pod === pod } # rubocop:disable Style/CaseEquality
+      else
+        raise Informative, 'Unable to handle share_schemes_for_development_pods ' \
+          "being set to #{dev_pods_to_share.inspect} -- please set it to true, " \
+          'false, or an array of pods to share schemes for.'
+      end
+    end
+
     # Writes the Podfile and the lock files.
     #
     # @todo   Pass the checkout options to the Lockfile.

lib/cocoapods/installer/installation_options.rb

@@ -106,6 +106,7 @@ module Pod
       option :deterministic_uuids, true
       option :integrate_targets, true
       option :lock_pod_sources, true
+      option :share_schemes_for_development_pods, true
 
       module Mixin
         module ClassMethods

spec/unit/installer/installation_options_spec.rb

@@ -62,6 +62,7 @@ module Pod
           'deterministic_uuids' => false,
           'integrate_targets' => true,
           'lock_pod_sources' => true,
+          'share_schemes_for_development_pods' => true,
         }
       end
 

spec/unit/installer_spec.rb

@@ -749,18 +749,83 @@ module Pod
           @installer.send(:write_pod_project)
         end
 
-        it 'shares schemes of development pods' do
-          spec = fixture_spec('banana-lib/BananaLib.podspec')
-          pod_target = fixture_pod_target(spec)
+        describe 'sharing schemes of development pods' do
+          before do
+            spec = fixture_spec('banana-lib/BananaLib.podspec')
+            pod_target = fixture_pod_target(spec)
 
-          @installer.stubs(:pod_targets).returns([pod_target])
-          @installer.sandbox.stubs(:development_pods).returns('BananaLib' => nil)
+            @installer.stubs(:pod_targets).returns([pod_target])
+            @installer.sandbox.stubs(:development_pods).returns('BananaLib' => nil)
+          end
+
+          it 'shares by default' do
+            Xcodeproj::XCScheme.expects(:share_scheme).with(
+              @installer.pods_project.path,
+              'BananaLib')
+            @installer.send(:share_development_pod_schemes)
+          end
+
+          it 'allows opting out' do
+            @installer.installation_options.
+              stubs(:share_schemes_for_development_pods).
+              returns(false)
+
+            Xcodeproj::XCScheme.expects(:share_scheme).never
+            @installer.send(:share_development_pod_schemes)
+
+            @installer.installation_options.
+              stubs(:share_schemes_for_development_pods).
+              returns(nil)
+
+            Xcodeproj::XCScheme.expects(:share_scheme).never
+            @installer.send(:share_development_pod_schemes)
+          end
+
+          it 'allows specifying strings of pods to share' do
+            @installer.installation_options.
+              stubs(:share_schemes_for_development_pods).
+              returns(%w(BananaLib))
 
-          Xcodeproj::XCScheme.expects(:share_scheme).with(
-            @installer.pods_project.path,
-            'BananaLib')
+            Xcodeproj::XCScheme.expects(:share_scheme).with(
+              @installer.pods_project.path,
+              'BananaLib')
+            @installer.send(:share_development_pod_schemes)
 
-          @installer.send(:share_development_pod_schemes)
+            @installer.installation_options.
+              stubs(:share_schemes_for_development_pods).
+              returns(%w(orange-framework))
+
+            Xcodeproj::XCScheme.expects(:share_scheme).never
+            @installer.send(:share_development_pod_schemes)
+          end
+
+          it 'allows specifying regular expressions of pods to share' do
+            @installer.installation_options.
+              stubs(:share_schemes_for_development_pods).
+              returns([/bAnaNalIb/i, /B*/])
+
+            Xcodeproj::XCScheme.expects(:share_scheme).with(
+              @installer.pods_project.path,
+              'BananaLib')
+            @installer.send(:share_development_pod_schemes)
+
+            @installer.installation_options.
+              stubs(:share_schemes_for_development_pods).
+              returns([/banana$/, /[^\A]BananaLib/])
+
+            Xcodeproj::XCScheme.expects(:share_scheme).never
+            @installer.send(:share_development_pod_schemes)
+          end
+
+          it 'raises when an invalid type is set' do
+            @installer.installation_options.
+              stubs(:share_schemes_for_development_pods).
+              returns(Pathname('foo'))
+
+            Xcodeproj::XCScheme.expects(:share_scheme).never
+            e = should.raise(Informative) { @installer.send(:share_development_pod_schemes) }
+            e.message.should.match /share_schemes_for_development_pods.*set it to true, false, or an array of pods to share schemes for/
+          end
         end
 
         it "uses the user project's object version for the pods project" do