92 lines
3.7 KiB
Ruby
92 lines
3.7 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module GithubImport
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module Importer
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class PullRequestImporter
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attr_reader :pull_request, :project, :client, :user_finder,
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:milestone_finder, :issuable_finder
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# pull_request - An instance of
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# `Gitlab::GithubImport::Representation::PullRequest`.
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# project - An instance of `Project`
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# client - An instance of `Gitlab::GithubImport::Client`
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def initialize(pull_request, project, client)
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@pull_request = pull_request
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@project = project
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@client = client
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@user_finder = UserFinder.new(project, client)
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@milestone_finder = MilestoneFinder.new(project)
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@issuable_finder =
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GithubImport::IssuableFinder.new(project, pull_request)
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end
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def execute
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if (mr_id = create_merge_request)
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issuable_finder.cache_database_id(mr_id)
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end
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end
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# Creates the merge request and returns its ID.
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#
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# This method will return `nil` if the merge request could not be
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# created.
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def create_merge_request
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author_id, author_found = user_finder.author_id_for(pull_request)
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description = MarkdownText
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.format(pull_request.description, pull_request.author, author_found)
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# This work must be wrapped in a transaction as otherwise we can leave
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# behind incomplete data in the event of an error. This can then lead
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# to duplicate key errors when jobs are retried.
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MergeRequest.transaction do
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attributes = {
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iid: pull_request.iid,
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title: pull_request.truncated_title,
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description: description,
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source_project_id: project.id,
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target_project_id: project.id,
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source_branch: pull_request.formatted_source_branch,
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target_branch: pull_request.target_branch,
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state: pull_request.state,
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milestone_id: milestone_finder.id_for(pull_request),
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author_id: author_id,
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assignee_id: user_finder.assignee_id_for(pull_request),
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created_at: pull_request.created_at,
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updated_at: pull_request.updated_at
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}
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# When creating merge requests there are a lot of hooks that may
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# run, for many different reasons. Many of these hooks (e.g. the
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# ones used for rendering Markdown) are completely unnecessary and
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# may even lead to transaction timeouts.
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#
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# To ensure importing pull requests has a minimal impact and can
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# complete in a reasonable time we bypass all the hooks by inserting
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# the row and then retrieving it. We then only perform the
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# additional work that is strictly necessary.
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merge_request_id = GithubImport
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.insert_and_return_id(attributes, project.merge_requests)
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merge_request = project.merge_requests.find(merge_request_id)
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# These fields are set so we can create the correct merge request
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# diffs.
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merge_request.source_branch_sha = pull_request.source_branch_sha
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merge_request.target_branch_sha = pull_request.target_branch_sha
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merge_request.keep_around_commit
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merge_request.merge_request_diffs.create
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merge_request.id
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end
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rescue ActiveRecord::InvalidForeignKey
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# It's possible the project has been deleted since scheduling this
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# job. In this case we'll just skip creating the merge request.
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end
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end
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end
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end
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end
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