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# frozen_string_literal: true
module MergeRequests
class CreateFromIssueService < MergeRequests::CreateService
def initialize(project, user, params)
# branch - the name of new branch
# ref - the source of new branch.
@branch_name = params[:branch_name]
@issue_iid = params[:issue_iid]
@ref = params[:ref]
@target_project_id = params[:target_project_id]
super(project, user)
end
def execute
return error('Project not found') if target_project.blank?
return error('Not allowed to create merge request') unless can_create_merge_request?
return error('Invalid issue iid') unless @issue_iid.present? && issue.present?
result = CreateBranchService.new(target_project, current_user).execute(branch_name, ref)
return result if result[:status] == :error
new_merge_request = create(merge_request)
if new_merge_request.valid?
SystemNoteService.new_merge_request(issue, project, current_user, new_merge_request)
success(new_merge_request)
else
SystemNoteService.new_issue_branch(issue, project, current_user, branch_name, branch_project: target_project)
error(new_merge_request.errors)
end
end
private
def can_create_merge_request?
can?(current_user, :create_merge_request_from, target_project)
end
# rubocop: disable CodeReuse/ActiveRecord
def issue
@issue ||= IssuesFinder.new(current_user, project_id: project.id).find_by(iid: @issue_iid)
end
# rubocop: enable CodeReuse/ActiveRecord
def branch_name
@branch ||= @branch_name || issue.to_branch_name
end
def ref
return @ref if target_project.repository.branch_exists?(@ref)
target_project.default_branch || 'master'
end
def merge_request
MergeRequests::BuildService.new(target_project, current_user, merge_request_params).execute
end
def merge_request_params
{
issue_iid: @issue_iid,
source_project_id: target_project.id,
source_branch: branch_name,
target_project_id: target_project.id,
target_branch: ref
}
end
def success(merge_request)
super().merge(merge_request: merge_request)
end
def target_project
@target_project ||=
if @target_project_id.present?
project.forks.find_by_id(@target_project_id)
else
project
end
end
end
end
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