gitlab-org--gitlab-foss/app/services/suggestions/apply_service.rb
Oswaldo Ferreira 03e0604d5d Prepare suggestion implementation for multi-line
Adds the groundwork needed in order to persist multi-line suggestions,
while providing the parsing strategy which will be reused for the
**Preview** as well.
2019-03-27 12:26:53 -03:00

79 lines
2.3 KiB
Ruby

# frozen_string_literal: true
module Suggestions
class ApplyService < ::BaseService
def initialize(current_user)
@current_user = current_user
end
def execute(suggestion)
unless suggestion.appliable?(cached: false)
return error('Suggestion is not appliable')
end
unless latest_source_head?(suggestion)
return error('The file has been changed')
end
diff_file = suggestion.diff_file
unless diff_file
return error('The file was not found')
end
params = file_update_params(suggestion, diff_file)
result = ::Files::UpdateService.new(suggestion.project, @current_user, params).execute
if result[:status] == :success
suggestion.update(commit_id: result[:result], applied: true)
end
result
rescue Files::UpdateService::FileChangedError
error('The file has been changed')
end
private
# Checks whether the latest source branch HEAD matches with
# the position HEAD we're using to update the file content. Since
# the persisted HEAD is updated async (for MergeRequest),
# it's more consistent to fetch this data directly from the
# repository.
def latest_source_head?(suggestion)
suggestion.position.head_sha == suggestion.noteable.source_branch_sha
end
def file_update_params(suggestion, diff_file)
blob = diff_file.new_blob
file_path = suggestion.file_path
branch_name = suggestion.branch
file_content = new_file_content(suggestion, blob)
commit_message = "Apply suggestion to #{file_path}"
file_last_commit =
Gitlab::Git::Commit.last_for_path(suggestion.project.repository,
blob.commit_id,
blob.path)
{
file_path: file_path,
branch_name: branch_name,
start_branch: branch_name,
commit_message: commit_message,
file_content: file_content,
last_commit_sha: file_last_commit&.id
}
end
def new_file_content(suggestion, blob)
range = suggestion.from_line_index..suggestion.to_line_index
blob.load_all_data!
content = blob.data.lines
content[range] = suggestion.to_content
content.join
end
end
end