diff --git a/CHANGELOG b/CHANGELOG
index 9a31ebfa11de191c8d309085abf29d5bffe07f34..a42f8c7b91672bc280469d442483a73018290ebe 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -48,6 +48,7 @@ v 8.10.0 (unreleased)
- Fix user creation with stronger minimum password requirements !4054 (nathan-pmt)
- Only show New Snippet button to users that can create snippets.
- PipelinesFinder uses git cache data
+ - Actually render old and new sections of parallel diff next to each other
- Throttle the update of `project.pushes_since_gc` to 1 minute.
- Allow expanding and collapsing files in diff view (!4990)
- Collapse large diffs by default (!4990)
diff --git a/lib/gitlab/diff/parallel_diff.rb b/lib/gitlab/diff/parallel_diff.rb
index 1c1fc148123ef436b0185b75a9f79ce443940a34..b069afdd28c1a03eb3083c326ee32393f78aa2bc 100644
--- a/lib/gitlab/diff/parallel_diff.rb
+++ b/lib/gitlab/diff/parallel_diff.rb
@@ -8,95 +8,78 @@ module Gitlab
end
def parallelize
- lines = []
- skip_next = false
+ i = 0
+ free_right_index = nil
+
+ lines = []
highlighted_diff_lines = diff_file.highlighted_diff_lines
highlighted_diff_lines.each do |line|
- full_line = line.text
- type = line.type
line_code = diff_file.line_code(line)
- line_new = line.new_pos
- line_old = line.old_pos
position = diff_file.position(line)
- next_line = diff_file.next_line(line.index)
-
- if next_line
- next_line = highlighted_diff_lines[next_line.index]
- full_next_line = next_line.text
- next_line_code = diff_file.line_code(next_line)
- next_type = next_line.type
- next_position = diff_file.position(next_line)
- end
-
- case type
+ case line.type
when 'match', nil
# line in the right panel is the same as in the left one
lines << {
left: {
- type: type,
- number: line_old,
- text: full_line,
+ type: line.type,
+ number: line.old_pos,
+ text: line.text,
line_code: line_code,
position: position
},
right: {
- type: type,
- number: line_new,
- text: full_line,
+ type: line.type,
+ number: line.new_pos,
+ text: line.text,
line_code: line_code,
position: position
}
}
+
+ free_right_index = nil
+ i += 1
when 'old'
- case next_type
- when 'new'
- # Left side has text removed, right side has text added
- lines << {
- left: {
- type: type,
- number: line_old,
- text: full_line,
- line_code: line_code,
- position: position
- },
- right: {
- type: next_type,
- number: line_new,
- text: full_next_line,
- line_code: next_line_code,
- position: next_position,
- }
- }
- skip_next = true
- when 'old', 'nonewline', nil
- # Left side has text removed, right side doesn't have any change
- # No next line code, no new line number, no new line text
- lines << {
- left: {
- type: type,
- number: line_old,
- text: full_line,
- line_code: line_code,
- position: position
- },
- right: {
- type: next_type,
- number: nil,
- text: "",
- line_code: nil,
- position: nil
- }
+ lines << {
+ left: {
+ type: line.type,
+ number: line.old_pos,
+ text: line.text,
+ line_code: line_code,
+ position: position
+ },
+ right: {
+ type: nil,
+ number: nil,
+ text: "",
+ line_code: line_code,
+ position: position
}
- end
+ }
+
+ # Once we come upon a new line it can be put on the right of this old line
+ free_right_index ||= i
+ i += 1
when 'new'
- if skip_next
- # Change has been already included in previous line so no need to do it again
- skip_next = false
- next
+ data = {
+ type: line.type,
+ number: line.new_pos,
+ text: line.text,
+ line_code: line_code,
+ position: position
+ }
+
+ if free_right_index
+ # If an old line came before this without a line on the right, this
+ # line can be put to the right of it.
+ lines[free_right_index][:right] = data
+
+ # If there are any other old lines on the left that don't yet have
+ # a new counterpart on the right, update the free_right_index
+ next_free_right_index = free_right_index + 1
+ free_right_index = next_free_right_index < i ? next_free_right_index : nil
else
- # Change is only on the right side, left side has no change
lines << {
left: {
type: nil,
@@ -105,17 +88,15 @@ module Gitlab
line_code: line_code,
position: position
},
- right: {
- type: type,
- number: line_new,
- text: full_line,
- line_code: line_code,
- position: position
- }
+ right: data
}
+
+ free_right_index = nil
+ i += 1
end
end
end
+
lines
end
end
diff --git a/spec/fixtures/parallel_diff_result.yml b/spec/fixtures/parallel_diff_result.yml
index 7d01183e3efed7febd06bc1ddc34f5a113eaa416..333eda1191a2b2c6f9d39eb14347974ecddf6cfa 100644
--- a/spec/fixtures/parallel_diff_result.yml
+++ b/spec/fixtures/parallel_diff_result.yml
@@ -252,27 +252,6 @@
:base_sha: 6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9
:start_sha: 6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9
:head_sha: 570e7b2abdd848b95f2f578043fc23bd6f6fd24d
- :right:
- :type: old
- :number:
- :text: ''
- :line_code:
- :position:
-- :left:
- :type: old
- :number: 14
- :text: |
- -<span id="LC14" class="line"> <span class="n">options</span> <span class="o">=</span> <span class="p">{</span> <span class="ss">chdir: </span><span class="n">path</span> <span class="p">}</span></span>
- :line_code: 2f6fcd96b88b36ce98c38da085c795a27d92a3dd_14_13
- :position: !ruby/object:Gitlab::Diff::Position
- attributes:
- :old_path: files/ruby/popen.rb
- :new_path: files/ruby/popen.rb
- :old_line: 14
- :new_line:
- :base_sha: 6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9
- :start_sha: 6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9
- :head_sha: 570e7b2abdd848b95f2f578043fc23bd6f6fd24d
:right:
:type: new
:number: 13
@@ -289,16 +268,17 @@
:start_sha: 6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9
:head_sha: 570e7b2abdd848b95f2f578043fc23bd6f6fd24d
- :left:
- :type:
- :number:
- :text: ''
- :line_code: 2f6fcd96b88b36ce98c38da085c795a27d92a3dd_15_14
+ :type: old
+ :number: 14
+ :text: |
+ -<span id="LC14" class="line"> <span class="n">options</span> <span class="o">=</span> <span class="p">{</span> <span class="ss">chdir: </span><span class="n">path</span> <span class="p">}</span></span>
+ :line_code: 2f6fcd96b88b36ce98c38da085c795a27d92a3dd_14_13
:position: !ruby/object:Gitlab::Diff::Position
attributes:
:old_path: files/ruby/popen.rb
:new_path: files/ruby/popen.rb
- :old_line:
- :new_line: 14
+ :old_line: 14
+ :new_line:
:base_sha: 6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9
:start_sha: 6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9
:head_sha: 570e7b2abdd848b95f2f578043fc23bd6f6fd24d