Display a message when a pods source has changed during installation

CHANGELOG.md

@@ -12,6 +12,10 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
   [Muhammed Yavuz Nuzumlalı](https://github.com/manuyavuz)
   [#7473](https://github.com/CocoaPods/CocoaPods/pull/7473)
 
+* Display a message when a pods source has changed during installation  
+  [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
+  [#7464](https://github.com/CocoaPods/CocoaPods/pull/7464)
+
 * Add support for modular header search paths, include "legacy" support.  
   [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
   [#7412](https://github.com/CocoaPods/CocoaPods/pull/7412)

Gemfile.lock

@@ -7,7 +7,7 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/Core.git
-  revision: e0c6884b37ab6a44095a2bbdbfe9032627a90388
+  revision: 1a92ff1b5aa2bd21b9694d0941406aff328fdd2a
   branch: master
   specs:
     cocoapods-core (1.4.0)

lib/cocoapods/installer.rb

@@ -321,8 +321,17 @@ module Pod
       root_specs.sort_by(&:name).each do |spec|
         if pods_to_install.include?(spec.name)
           if sandbox_state.changed.include?(spec.name) && sandbox.manifest
-            previous = sandbox.manifest.version(spec.name)
-            title = "Installing #{spec.name} #{spec.version} (was #{previous})"
+            current_version = spec.version
+            previous_version = sandbox.manifest.version(spec.name)
+            has_changed_version = current_version != previous_version
+            current_repo = analysis_result.specs_by_source.detect { |key, values| break key if values.map(&:name).include?(spec.name) }
+            current_repo &&= current_repo.url || current_repo.name
+            previous_spec_repo = sandbox.manifest.spec_repo(spec.name)
+            has_changed_repo = !previous_spec_repo.nil? && current_repo && (current_repo != previous_spec_repo)
+            title = "Installing #{spec.name} #{spec.version}"
+            title << " (was #{previous_version} and source changed to `#{current_repo}` from `#{previous_spec_repo}`)" if has_changed_version && has_changed_repo
+            title << " (was #{previous_version})" if has_changed_version && !has_changed_repo
+            title << " (source changed to `#{current_repo}` from `#{previous_spec_repo}`)" if !has_changed_version && has_changed_repo
           else
             title = "Installing #{spec}"
           end

cocoapods-integration-specs @ 94fd6923

-Subproject commit f7fe19aff17a09075bdba1afcde1d4ffb5fff8ab
+Subproject commit 94fd69236ef1f5c92eca020bd7eb4bd5b34138ce

spec/unit/installer_spec.rb

@@ -492,9 +492,13 @@ module Pod
         it 'prints the previous version of a pod while updating the spec' do
           spec = Spec.new
           spec.name = 'RestKit'
-          spec.version = '2.0'
-          manifest = Lockfile.new({})
-          manifest.stubs(:version).with('RestKit').returns('1.0')
+          spec.version = Version.new('2.0')
+          manifest = Lockfile.new('SPEC REPOS' => { 'source1' => ['RestKit'] })
+          manifest.stubs(:version).with('RestKit').returns(Version.new('1.0'))
+          analysis_result = Installer::Analyzer::AnalysisResult.new
+          analysis_result.specifications = [spec]
+          analysis_result.specs_by_source = { Source.new('source1') => [spec] }
+          @installer.stubs(:analysis_result).returns(analysis_result)
           @installer.sandbox.stubs(:manifest).returns(manifest)
           @installer.stubs(:root_specs).returns([spec])
           sandbox_state = Installer::Analyzer::SpecsState.new
@@ -502,9 +506,51 @@ module Pod
           @installer.stubs(:sandbox_state).returns(sandbox_state)
           @installer.expects(:install_source_of_pod).with('RestKit')
           @installer.send(:install_pod_sources)
+          UI.output.should.not.include 'source changed'
           UI.output.should.include 'was 1.0'
         end
 
+        it 'prints the spec repo of a pod while updating the spec' do
+          spec = Spec.new
+          spec.name = 'RestKit'
+          spec.version = Version.new('1.0')
+          manifest = Lockfile.new('SPEC REPOS' => { 'source1' => ['RestKit'] })
+          manifest.stubs(:version).with('RestKit').returns(Version.new('1.0'))
+          analysis_result = Installer::Analyzer::AnalysisResult.new
+          analysis_result.specifications = [spec]
+          analysis_result.specs_by_source = { Source.new('source2') => [spec] }
+          @installer.stubs(:analysis_result).returns(analysis_result)
+          @installer.sandbox.stubs(:manifest).returns(manifest)
+          @installer.stubs(:root_specs).returns([spec])
+          sandbox_state = Installer::Analyzer::SpecsState.new
+          sandbox_state.changed << 'RestKit'
+          @installer.stubs(:sandbox_state).returns(sandbox_state)
+          @installer.expects(:install_source_of_pod).with('RestKit')
+          @installer.send(:install_pod_sources)
+          UI.output.should.not.include 'was 1.0'
+          UI.output.should.include 'source changed to `source2` from `source1`'
+        end
+
+        it 'prints the version and spec repo of a pod while updating the spec' do
+          spec = Spec.new
+          spec.name = 'RestKit'
+          spec.version = Version.new('3.0')
+          manifest = Lockfile.new('SPEC REPOS' => { 'source1' => ['RestKit'] })
+          manifest.stubs(:version).with('RestKit').returns(Version.new('2.0'))
+          analysis_result = Installer::Analyzer::AnalysisResult.new
+          analysis_result.specifications = [spec]
+          analysis_result.specs_by_source = { Source.new('source2') => [spec] }
+          @installer.stubs(:analysis_result).returns(analysis_result)
+          @installer.sandbox.stubs(:manifest).returns(manifest)
+          @installer.stubs(:root_specs).returns([spec])
+          sandbox_state = Installer::Analyzer::SpecsState.new
+          sandbox_state.changed << 'RestKit'
+          @installer.stubs(:sandbox_state).returns(sandbox_state)
+          @installer.expects(:install_source_of_pod).with('RestKit')
+          @installer.send(:install_pod_sources)
+          UI.output.should.include 'was 2.0 and source changed to `source2` from `source1`'
+        end
+
         it 'raises when it attempts to install pod source with no target supporting it' do
           spec = fixture_spec('banana-lib/BananaLib.podspec')
           pod_target = PodTarget.new([spec], [fixture_target_definition], config.sandbox)