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# Controller for a specific Commit
#
# Not to be confused with CommitsController, plural.
class Projects::CommitController < Projects::ApplicationController
include RendersNotes
include CreatesCommit
include DiffForPath
include DiffHelper
# Authorize
before_action :require_non_empty_project
before_action :authorize_download_code!
before_action :authorize_read_pipeline!, only: [:pipelines]
before_action :commit
before_action :define_commit_vars, only: [:show, :diff_for_path, :pipelines, :merge_requests]
before_action :define_note_vars, only: [:show, :diff_for_path]
before_action :authorize_edit_tree!, only: [:revert, :cherry_pick]
BRANCH_SEARCH_LIMIT = 1000
def show
apply_diff_view_cookie!
respond_to do |format|
format.html do
render
end
format.diff do
send_git_diff(@project.repository, @commit.diff_refs)
end
format.patch do
send_git_patch(@project.repository, @commit.diff_refs)
end
end
end
def diff_for_path
render_diff_for_path(@commit.diffs(diff_options))
end
# rubocop: disable CodeReuse/ActiveRecord
def pipelines
@pipelines = @commit.pipelines.order(id: :desc)
@pipelines = @pipelines.where(ref: params[:ref]) if params[:ref]
respond_to do |format|
format.html
format.json do
Gitlab::PollingInterval.set_header(response, interval: 10_000)
render json: {
pipelines: PipelineSerializer
.new(project: @project, current_user: @current_user)
.represent(@pipelines),
count: {
all: @pipelines.count
}
}
end
end
end
# rubocop: enable CodeReuse/ActiveRecord
def merge_requests
@merge_requests = @commit.merge_requests.map do |mr|
{ iid: mr.iid, path: merge_request_path(mr), title: mr.title }
end
respond_to do |format|
format.json do
render json: @merge_requests.to_json
end
end
end
def branches
# branch_names_contains/tag_names_contains can take a long time when there are thousands of
# branches/tags - each `git branch --contains xxx` request can consume a cpu core.
# so only do the query when there are a manageable number of branches/tags
@branches_limit_exceeded = @project.repository.branch_count > BRANCH_SEARCH_LIMIT
@branches = @branches_limit_exceeded ? [] : @project.repository.branch_names_contains(commit.id)
@tags_limit_exceeded = @project.repository.tag_count > BRANCH_SEARCH_LIMIT
@tags = @tags_limit_exceeded ? [] : @project.repository.tag_names_contains(commit.id)
render layout: false
end
def revert
assign_change_commit_vars
return render_404 if @start_branch.blank?
@branch_name = create_new_branch? ? @commit.revert_branch_name : @start_branch
create_commit(Commits::RevertService, success_notice: "The #{@commit.change_type_title(current_user)} has been successfully reverted.",
success_path: -> { successful_change_path }, failure_path: failed_change_path)
end
def cherry_pick
assign_change_commit_vars
return render_404 if @start_branch.blank?
@branch_name = create_new_branch? ? @commit.cherry_pick_branch_name : @start_branch
create_commit(Commits::CherryPickService, success_notice: "The #{@commit.change_type_title(current_user)} has been successfully cherry-picked into #{@branch_name}.",
success_path: -> { successful_change_path }, failure_path: failed_change_path)
end
private
def create_new_branch?
params[:create_merge_request].present? || !can?(current_user, :push_code, @project)
end
def successful_change_path
referenced_merge_request_url || project_commits_url(@project, @branch_name)
end
def failed_change_path
referenced_merge_request_url || project_commit_url(@project, params[:id])
end
def referenced_merge_request_url
if merge_request = @commit.merged_merge_request(current_user)
project_merge_request_url(merge_request.target_project, merge_request)
end
end
def commit
@noteable = @commit ||= @project.commit_by(oid: params[:id]).tap do |commit|
# preload author and their status for rendering
commit&.author&.status
end
end
def define_commit_vars
return git_not_found! unless commit
opts = diff_options
opts[:ignore_whitespace_change] = true if params[:format] == 'diff'
@diffs = commit.diffs(opts)
@notes_count = commit.notes.count
@environment = EnvironmentsFinder.new(@project, current_user, commit: @commit).execute.last
end
# rubocop: disable CodeReuse/ActiveRecord
def define_note_vars
@noteable = @commit
@note = @project.build_commit_note(commit)
@new_diff_note_attrs = {
noteable_type: 'Commit',
commit_id: @commit.id
}
@grouped_diff_discussions = commit.grouped_diff_discussions
@discussions = commit.discussions
if merge_request_iid = params[:merge_request_iid]
@merge_request = MergeRequestsFinder.new(current_user, project_id: @project.id).find_by(iid: merge_request_iid)
if @merge_request
@new_diff_note_attrs.merge!(
noteable_type: 'MergeRequest',
noteable_id: @merge_request.id
)
merge_request_commit_notes = @merge_request.notes.where(commit_id: @commit.id).inc_relations_for_view
merge_request_commit_diff_discussions = merge_request_commit_notes.grouped_diff_discussions(@commit.diff_refs)
@grouped_diff_discussions.merge!(merge_request_commit_diff_discussions) do |line_code, left, right|
left + right
end
end
end
@notes = (@grouped_diff_discussions.values.flatten + @discussions).flat_map(&:notes)
@notes = prepare_notes_for_rendering(@notes, @commit)
end
# rubocop: enable CodeReuse/ActiveRecord
def assign_change_commit_vars
@start_branch = params[:start_branch]
@commit_params = { commit: @commit }
end
end
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