From 4abdeb7b5eb06acb633a9ac12d7c681d736a5286 Mon Sep 17 00:00:00 2001
From: Josh Hagins <hagins.josh@gmail.com>
Date: Sat, 16 Jul 2016 01:18:30 -0400
Subject: [PATCH] update: Don't report formulae that are moved within a tap but
 not renamed (#480)

---
 Library/Homebrew/cmd/update-report.rb         |  8 ++++++--
 .../test/fixtures/updater_fixture.yaml        |  2 ++
 Library/Homebrew/test/test_update_report.rb   | 20 +++++++++++++++++--
 3 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/Library/Homebrew/cmd/update-report.rb b/Library/Homebrew/cmd/update-report.rb
index 0f75edaad7..bb7cbfc23b 100644
--- a/Library/Homebrew/cmd/update-report.rb
+++ b/Library/Homebrew/cmd/update-report.rb
@@ -209,8 +209,12 @@ class Reporter
         end
         @report[:M] << tap.formula_file_to_name(src)
       when /^R\d{0,3}/
-        @report[:D] << tap.formula_file_to_name(src) if tap.formula_file?(src)
-        @report[:A] << tap.formula_file_to_name(dst) if tap.formula_file?(dst)
+        src_full_name = tap.formula_file_to_name(src)
+        dst_full_name = tap.formula_file_to_name(dst)
+        # Don't report formulae that are moved within a tap but not renamed
+        next if src_full_name == dst_full_name
+        @report[:D] << src_full_name
+        @report[:A] << dst_full_name
       end
     end
 
diff --git a/Library/Homebrew/test/fixtures/updater_fixture.yaml b/Library/Homebrew/test/fixtures/updater_fixture.yaml
index b978bf5d60..06a6a0c7fb 100644
--- a/Library/Homebrew/test/fixtures/updater_fixture.yaml
+++ b/Library/Homebrew/test/fixtures/updater_fixture.yaml
@@ -45,6 +45,8 @@ update_git_diff_output_with_formula_rename: |
 update_git_diff_output_with_restructured_tap: |
   R100	git.rb	Formula/git.rb
   R100	lua.rb	Formula/lua.rb
+update_git_diff_output_with_formula_rename_and_restructuring: |
+  R100	xchat.rb	Formula/xchat2.rb
 update_git_diff_simulate_homebrew_php_restructuring: |
   R100	Formula/git.rb	Abstract/git.rb
   R100	Formula/lua.rb	Abstract/lua.rb
diff --git a/Library/Homebrew/test/test_update_report.rb b/Library/Homebrew/test/test_update_report.rb
index b7cdb454b7..2686e85cee 100644
--- a/Library/Homebrew/test/test_update_report.rb
+++ b/Library/Homebrew/test/test_update_report.rb
@@ -85,8 +85,23 @@ class ReportTests < Homebrew::TestCase
     tap.path.join("Formula").mkpath
 
     perform_update("update_git_diff_output_with_restructured_tap")
-    assert_equal %w[foo/bar/git foo/bar/lua], @hub.select_formula(:A)
+    assert_empty @hub.select_formula(:A)
     assert_empty @hub.select_formula(:D)
+    assert_empty @hub.select_formula(:R)
+  ensure
+    tap.path.parent.rmtree
+  end
+
+  def test_update_homebrew_with_formula_rename_and_restructuring
+    tap = Tap.new("foo", "bar")
+    @reporter = ReporterMock.new(tap)
+    tap.path.join("Formula").mkpath
+    tap.stubs(:formula_renames).returns("xchat" => "xchat2")
+
+    perform_update("update_git_diff_output_with_formula_rename_and_restructuring")
+    assert_empty @hub.select_formula(:A)
+    assert_empty @hub.select_formula(:D)
+    assert_equal [%w[foo/bar/xchat foo/bar/xchat2]], @hub.select_formula(:R)
   ensure
     tap.path.parent.rmtree
   end
@@ -98,7 +113,8 @@ class ReportTests < Homebrew::TestCase
 
     perform_update("update_git_diff_simulate_homebrew_php_restructuring")
     assert_empty @hub.select_formula(:A)
-    assert_equal %w[foo/bar/git foo/bar/lua], @hub.select_formula(:D)
+    assert_empty @hub.select_formula(:D)
+    assert_empty @hub.select_formula(:R)
   ensure
     tap.path.parent.rmtree
   end