Remove the Commit#tree method

app/models/commit.rb

@@ -371,7 +371,7 @@ class Commit
   #
   # Returns a symbol
   def uri_type(path)
-    entry = @raw.tree.path(path)
+    entry = @raw.rugged_tree_entry(path)
     if entry[:type] == :blob
       blob = ::Blob.decorate(Gitlab::Git::Blob.new(name: entry[:name]), @project)
       blob.image? || blob.video? ? :raw : :blob

lib/gitlab/git/blob.rb

@@ -154,8 +154,8 @@ module Gitlab
         end
 
         def find_by_rugged(repository, sha, path, limit:)
-          commit = repository.lookup(sha)
-          root_tree = commit.tree
+          rugged_commit = repository.lookup(sha)
+          root_tree = rugged_commit.tree
 
           blob_entry = find_entry_by_path(repository, root_tree.oid, path)
 

lib/gitlab/git/commit.rb

@@ -15,8 +15,6 @@ module Gitlab
 
       attr_accessor *SERIALIZE_KEYS # rubocop:disable Lint/AmbiguousOperator
 
-      delegate :tree, to: :rugged_commit
-
       def ==(other)
         return false unless other.is_a?(Gitlab::Git::Commit)
 
@@ -452,6 +450,11 @@ module Gitlab
         )
       end
 
+      # Is this the same as Blob.find_entry_by_path ?
+      def rugged_tree_entry(path)
+        rugged_commit.tree.path(path)
+      end
+
       private
 
       def init_from_hash(hash)

spec/lib/gitlab/git/blob_spec.rb

@@ -146,7 +146,7 @@ describe Gitlab::Git::Blob, seed_helper: true do
 
     context 'when sha references a tree' do
       it 'returns nil' do
-        tree = Gitlab::Git::Commit.find(repository, 'master').tree
+        tree = repository.rugged.rev_parse('master^{tree}')
 
         blob = Gitlab::Git::Blob.raw(repository, tree.oid)
 
@@ -237,7 +237,7 @@ describe Gitlab::Git::Blob, seed_helper: true do
   end
 
   describe '.batch_lfs_pointers' do
-    let(:tree_object) { Gitlab::Git::Commit.find(repository, 'master').tree }
+    let(:tree_object) { repository.rugged.rev_parse('master^{tree}') }
 
     let(:non_lfs_blob) do
       Gitlab::Git::Blob.find(

spec/lib/gitlab/git/commit_spec.rb

@@ -55,7 +55,6 @@ describe Gitlab::Git::Commit, seed_helper: true do
     it { expect(@commit.parents).to eq(@gitlab_parents) }
     it { expect(@commit.parent_id).to eq(@parents.first.oid) }
     it { expect(@commit.no_commit_message).to eq("--no commit message") }
-    it { expect(@commit.tree).to eq(@tree) }
 
     after do
       # Erase the new commit so other tests get the original repo

spec/models/commit_spec.rb

@@ -181,7 +181,6 @@ eos
     it { is_expected.to respond_to(:parents) }
     it { is_expected.to respond_to(:date) }
     it { is_expected.to respond_to(:diffs) }
-    it { is_expected.to respond_to(:tree) }
     it { is_expected.to respond_to(:id) }
     it { is_expected.to respond_to(:to_patch) }
   end