1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
# frozen_string_literal: true
require 'addressable/uri'
class Projects::CompareController < Projects::ApplicationController
include DiffForPath
include DiffHelper
include RendersCommits
include CompareHelper
# Authorize
before_action :require_non_empty_project
before_action :authorize_download_code!
# Defining ivars
before_action :define_diffs, only: [:show, :diff_for_path]
before_action :define_environment, only: [:show]
before_action :define_diff_notes_disabled, only: [:show, :diff_for_path]
before_action :define_commits, only: [:show, :diff_for_path, :signatures]
before_action :merge_request, only: [:index, :show]
# Validation
before_action :validate_refs!
feature_category :source_code_management
urgency :low, [:show, :create, :signatures]
# Diffs may be pretty chunky, the less is better in this endpoint.
# Pagination design guides: https://design.gitlab.com/components/pagination/#behavior
COMMIT_DIFFS_PER_PAGE = 20
def index
compare_params
end
def show
apply_diff_view_cookie!
render locals: { pagination_params: params.permit(:page) }
end
def diff_for_path
return render_404 unless compare
render_diff_for_path(compare.diffs(diff_options))
end
def create
from_to_vars = {
from: compare_params[:from].presence,
to: compare_params[:to].presence,
from_project_id: compare_params[:from_project_id].presence
}
if from_to_vars[:from].blank? || from_to_vars[:to].blank?
flash[:alert] = "You must select a Source and a Target revision"
redirect_to project_compare_index_path(source_project, from_to_vars)
else
redirect_to project_compare_path(source_project, from_to_vars)
end
end
def signatures
respond_to do |format|
format.json do
render json: {
signatures: @commits.select(&:has_signature?).map do |commit|
{
commit_sha: commit.sha,
html: view_to_html_string('projects/commit/_signature', signature: commit.signature)
}
end
}
end
end
end
private
def validate_refs!
invalid = [head_ref, start_ref].filter { |ref| !valid_ref?(ref) }
return if invalid.empty?
flash[:alert] = "Invalid branch name(s): #{invalid.join(', ')}"
redirect_to project_compare_index_path(source_project)
end
# target == start_ref == from
def target_project
strong_memoize(:target_project) do
next source_project.default_merge_request_target unless compare_params.key?(:from_project_id)
next source_project if compare_params[:from_project_id].to_i == source_project.id
target_project = target_projects(source_project).find_by_id(compare_params[:from_project_id])
# Just ignore the field if it points at a non-existent or hidden project
next source_project unless target_project && can?(current_user, :download_code, target_project)
target_project
end
end
# source == head_ref == to
def source_project
strong_memoize(:source_project) do
# Eager load project's avatar url to prevent batch loading
# for all forked projects
project&.tap(&:avatar_url)
end
end
def compare
return @compare if defined?(@compare)
@compare = CompareService.new(source_project, head_ref).execute(target_project, start_ref)
end
def start_ref
@start_ref ||= Addressable::URI.unescape(compare_params[:from]).presence
end
def head_ref
return @ref if defined?(@ref)
@ref = @head_ref = Addressable::URI.unescape(compare_params[:to]).presence
end
def define_commits
strong_memoize(:commits) do
if compare.present?
commits = compare.commits.with_markdown_cache.with_latest_pipeline(head_ref)
set_commits_for_rendering(commits)
else
[]
end
end
end
def define_diffs
@diffs = compare.present? ? compare.diffs(diff_options) : []
end
def define_environment
if compare
environment_params = source_project.repository.branch_exists?(head_ref) ? { ref: head_ref } : { commit: compare.commit }
environment_params[:find_latest] = true
@environment = ::Environments::EnvironmentsByDeploymentsFinder.new(source_project, current_user, environment_params).execute.last
end
end
def define_diff_notes_disabled
@diff_notes_disabled = compare.present?
end
# rubocop: disable CodeReuse/ActiveRecord
def merge_request
@merge_request ||= MergeRequestsFinder.new(current_user, project_id: target_project.id).execute.opened
.find_by(source_project: source_project, source_branch: head_ref, target_branch: start_ref)
end
# rubocop: enable CodeReuse/ActiveRecord
def compare_params
@compare_params ||= params.permit(:from, :to, :from_project_id)
end
end
|