2014-04-09 12:05:03 +00:00
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# == Schema Information
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#
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# Table name: merge_request_diffs
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#
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# id :integer not null, primary key
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2014-08-25 09:25:02 +00:00
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# state :string(255)
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2014-04-09 12:05:03 +00:00
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# st_commits :text
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# st_diffs :text
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# merge_request_id :integer not null
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# created_at :datetime
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# updated_at :datetime
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#
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2014-01-22 13:19:02 +00:00
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require Rails.root.join("app/models/commit")
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class MergeRequestDiff < ActiveRecord::Base
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2015-02-05 22:20:55 +00:00
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include Sortable
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2015-08-11 12:33:31 +00:00
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# Prevent store of diff if commits amount more then 500
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COMMITS_SAFE_SIZE = 500
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2014-01-22 13:19:02 +00:00
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attr_reader :commits, :diffs
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belongs_to :merge_request
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delegate :target_branch, :source_branch, to: :merge_request, prefix: nil
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state_machine :state, initial: :empty do
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state :collected
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state :timeout
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state :overflow_commits_safe_size
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state :overflow_diff_files_limit
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state :overflow_diff_lines_limit
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end
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serialize :st_commits
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serialize :st_diffs
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after_create :reload_content
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def reload_content
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reload_commits
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reload_diffs
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end
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def diffs
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@diffs ||= (load_diffs(st_diffs) || [])
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end
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def commits
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@commits ||= load_commits(st_commits || [])
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end
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def last_commit
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commits.first
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end
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def last_commit_short_sha
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2014-10-10 12:39:48 +00:00
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@last_commit_short_sha ||= last_commit.short_id
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2014-01-22 13:19:02 +00:00
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end
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private
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def dump_commits(commits)
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commits.map(&:to_hash)
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end
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def load_commits(array)
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2015-04-21 13:09:15 +00:00
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array.map { |hash| Commit.new(Gitlab::Git::Commit.new(hash), merge_request.source_project) }
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2014-01-22 13:19:02 +00:00
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end
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def dump_diffs(diffs)
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if diffs.respond_to?(:map)
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diffs.map(&:to_hash)
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end
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end
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def load_diffs(raw)
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if raw.respond_to?(:map)
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raw.map { |hash| Gitlab::Git::Diff.new(hash) }
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end
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end
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# Collect array of Git::Commit objects
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# between target and source branches
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def unmerged_commits
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2014-07-29 09:21:03 +00:00
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commits = compare_result.commits
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2014-01-22 13:19:02 +00:00
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if commits.present?
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2015-04-21 13:09:15 +00:00
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commits = Commit.decorate(commits, merge_request.source_project).
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2014-01-22 13:19:02 +00:00
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sort_by(&:created_at).
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reverse
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end
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commits
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end
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# Reload all commits related to current merge request from repo
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# and save it as array of hashes in st_commits db field
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def reload_commits
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commit_objects = unmerged_commits
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if commit_objects.present?
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self.st_commits = dump_commits(commit_objects)
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end
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save
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end
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# Reload diffs between branches related to current merge request from repo
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# and save it as array of hashes in st_diffs db field
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def reload_diffs
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new_diffs = []
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if commits.size.zero?
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self.state = :empty
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elsif commits.size > COMMITS_SAFE_SIZE
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self.state = :overflow_commits_safe_size
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else
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new_diffs = unmerged_diffs
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end
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if new_diffs.any?
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if new_diffs.size > Commit::DIFF_HARD_LIMIT_FILES
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self.state = :overflow_diff_files_limit
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2015-09-25 09:39:34 +00:00
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new_diffs = new_diffs.first(Commit::DIFF_HARD_LIMIT_LINES)
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2014-01-22 13:19:02 +00:00
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end
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if new_diffs.sum { |diff| diff.diff.lines.count } > Commit::DIFF_HARD_LIMIT_LINES
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self.state = :overflow_diff_lines_limit
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2015-09-25 09:39:34 +00:00
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new_diffs = new_diffs.first(Commit::DIFF_HARD_LIMIT_LINES)
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2014-01-22 13:19:02 +00:00
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end
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end
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2014-01-22 13:30:14 +00:00
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if new_diffs.present?
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new_diffs = dump_commits(new_diffs)
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self.state = :collected
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end
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2014-01-22 13:19:02 +00:00
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self.st_diffs = new_diffs
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self.save
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end
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# Collect array of Git::Diff objects
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# between target and source branches
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def unmerged_diffs
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2015-10-03 05:56:37 +00:00
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compare_result.diffs || []
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rescue Gitlab::Git::Diff::TimeoutError
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2014-02-12 10:54:49 +00:00
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self.state = :timeout
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2015-10-03 05:56:37 +00:00
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[]
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2014-01-22 13:19:02 +00:00
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end
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def repository
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merge_request.target_project.repository
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end
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2014-05-07 13:14:24 +00:00
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private
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2014-07-29 09:21:03 +00:00
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def compare_result
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2015-08-11 12:33:31 +00:00
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@compare_result ||=
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begin
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# Update ref for merge request
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merge_request.fetch_ref
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# Get latest sha of branch from source project
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source_sha = merge_request.source_project.commit(source_branch).sha
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Gitlab::CompareResult.new(
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Gitlab::Git::Compare.new(
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merge_request.target_project.repository.raw_repository,
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merge_request.target_branch,
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source_sha,
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)
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)
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end
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2014-05-07 13:14:24 +00:00
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end
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2014-01-22 13:19:02 +00:00
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end
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