debian-mirror-gitlab/app/controllers/projects/compare_controller.rb

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# frozen_string_literal: true
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require 'addressable/uri'
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class Projects::CompareController < Projects::ApplicationController
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include DiffForPath
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include DiffHelper
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include RendersCommits
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include CompareHelper
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# Authorize
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before_action :require_non_empty_project
before_action :authorize_download_code!
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# 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]
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before_action :merge_request, only: [:index, :show]
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# Validation
before_action :validate_refs!
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feature_category :source_code_management
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urgency :low, [:show, :create, :signatures]
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# 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
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def index
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compare_params
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end
def show
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apply_diff_view_cookie!
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render locals: { pagination_params: params.permit(:page) }
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end
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def diff_for_path
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return render_404 unless compare
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render_diff_for_path(compare.diffs(diff_options))
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end
def create
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from_to_vars = {
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from: compare_params[:from].presence,
to: compare_params[:to].presence,
from_project_id: compare_params[:from_project_id].presence
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}
if from_to_vars[:from].blank? || from_to_vars[:to].blank?
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flash[:alert] = "You must select a Source and a Target revision"
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redirect_to project_compare_index_path(source_project, from_to_vars)
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else
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redirect_to project_compare_path(source_project, from_to_vars)
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end
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end
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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
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private
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def validate_refs!
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invalid = [head_ref, start_ref].filter { |ref| !valid_ref?(ref) }
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return if invalid.empty?
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flash[:alert] = "Invalid branch name(s): #{invalid.join(', ')}"
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redirect_to project_compare_index_path(source_project)
end
# target == start_ref == from
def target_project
strong_memoize(:target_project) do
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next source_project unless compare_params.key?(:from_project_id)
next source_project if compare_params[:from_project_id].to_i == source_project.id
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target_project = target_projects(source_project).find_by_id(compare_params[:from_project_id])
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# 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
project
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end
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def compare
return @compare if defined?(@compare)
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@compare = CompareService.new(source_project, head_ref).execute(target_project, start_ref)
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end
def start_ref
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@start_ref ||= Addressable::URI.unescape(compare_params[:from])
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end
def head_ref
return @ref if defined?(@ref)
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@ref = @head_ref = Addressable::URI.unescape(compare_params[:to])
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end
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def define_commits
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@commits = compare.present? ? set_commits_for_rendering(@compare.commits) : []
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end
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def define_diffs
@diffs = compare.present? ? compare.diffs(diff_options) : []
end
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def define_environment
if compare
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environment_params = source_project.repository.branch_exists?(head_ref) ? { ref: head_ref } : { commit: compare.commit }
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environment_params[:find_latest] = true
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@environment = ::Environments::EnvironmentsByDeploymentsFinder.new(source_project, current_user, environment_params).execute.last
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end
end
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def define_diff_notes_disabled
@diff_notes_disabled = compare.present?
end
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# rubocop: disable CodeReuse/ActiveRecord
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def merge_request
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@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)
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end
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# rubocop: enable CodeReuse/ActiveRecord
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def compare_params
@compare_params ||= params.permit(:from, :to, :from_project_id)
end
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end