Add Commit#to_diff for raw diff

Riyad Preukschas
1 parent 8b401039
Showing 1 changed file with 15 additions and 0 deletions Show diff stats
app/models/commit.rb
@@ -150,4 +150,19 @@ class Commit
   def parents_count
     parents && parents.count || 0
   end
+
+  # Shows the diff between the commit's parent and the commit.
+  #
+  # Cuts out the header and stats from #to_patch and returns only the diff.
+  def to_diff
+    # see Grit::Commit#show
+    patch = to_patch
+
+    # discard lines before the diff
+    lines = patch.split("\n")
+    while !lines.first.start_with?("diff --git") do
+      lines.shift
+    end
+    lines.join("\n")
+  end
 end
...	...	@@ -150,4 +150,19 @@ class Commit
150	150	def parents_count
151	151	parents && parents.count \|\| 0
152	152	end
	153	+
	154	+ # Shows the diff between the commit's parent and the commit.
	155	+ #
	156	+ # Cuts out the header and stats from #to_patch and returns only the diff.
	157	+ def to_diff
	158	+ # see Grit::Commit#show
	159	+ patch = to_patch
	160	+
	161	+ # discard lines before the diff
	162	+ lines = patch.split("\n")
	163	+ while !lines.first.start_with?("diff --git") do
	164	+ lines.shift
	165	+ end
	166	+ lines.join("\n")
	167	+ end
153	168	end
...	...