From d97beec1d4cc773dd8fb8a5245efb040235f86b1 Mon Sep 17 00:00:00 2001
From: Go MAEDA <maeda@farend.jp>
Date: Sun, 30 Apr 2023 04:00:57 +0000
Subject: Add "View annotation prior to this change" button in the annotate
 view of Git (#35432).

Patch by Takenori TAKAKI.


git-svn-id: https://svn.redmine.org/redmine/trunk@22217 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 lib/redmine/scm/adapters/abstract_adapter.rb | 6 ++++--
 lib/redmine/scm/adapters/git_adapter.rb      | 6 +++++-
 2 files changed, 9 insertions(+), 3 deletions(-)

(limited to 'lib/redmine/scm')

diff --git a/lib/redmine/scm/adapters/abstract_adapter.rb b/lib/redmine/scm/adapters/abstract_adapter.rb
index 88a62fd6d..8e74086c5 100644
--- a/lib/redmine/scm/adapters/abstract_adapter.rb
+++ b/lib/redmine/scm/adapters/abstract_adapter.rb
@@ -423,16 +423,18 @@ module Redmine
       end
 
       class Annotate
-        attr_reader :lines, :revisions
+        attr_reader :lines, :revisions, :previous_annotations
 
         def initialize
           @lines = []
           @revisions = []
+          @previous_annotations = []
         end
 
-        def add_line(line, revision)
+        def add_line(line, revision, previous=nil)
           @lines << line
           @revisions << revision
+          @previous_annotations << previous
         end
 
         def content
diff --git a/lib/redmine/scm/adapters/git_adapter.rb b/lib/redmine/scm/adapters/git_adapter.rb
index 0c916c283..f4c3902e2 100644
--- a/lib/redmine/scm/adapters/git_adapter.rb
+++ b/lib/redmine/scm/adapters/git_adapter.rb
@@ -376,11 +376,14 @@ module Redmine
           identifier = ''
           # git shows commit author on the first occurrence only
           authors_by_commit = {}
+          prev_blames_by_commit = {}
           content.split("\n").each do |line|
             if line =~ /^([0-9a-f]{39,40})\s.*/
               identifier = $1
             elsif line =~ /^author (.+)/
               authors_by_commit[identifier] = $1.strip
+            elsif line =~ /^previous (.+)/
+              prev_blames_by_commit[identifier] = $1.strip
             elsif line =~ /^\t(.*)/
               blame.add_line(
                 $1,
@@ -389,7 +392,8 @@ module Redmine
                   :revision   => identifier,
                   :scmid      => identifier,
                   :author     => authors_by_commit[identifier]
-                )
+                ),
+                prev_blames_by_commit[identifier]
               )
               identifier = ''
               author = ''
-- 
cgit v1.2.3