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|
# == Schema Information
#
# Table name: merge_request_diffs
#
# id :integer not null, primary key
# state :string
# st_commits :text
# st_diffs :text
# merge_request_id :integer not null
# created_at :datetime
# updated_at :datetime
# base_commit_sha :string
# real_size :string
#
class MergeRequestDiff < ActiveRecord::Base
include Sortable
# Prevent store of diff if commits amount more then 500
COMMITS_SAFE_SIZE = 100
belongs_to :merge_request
delegate :target_branch, :source_branch, to: :merge_request, prefix: nil
state_machine :state, initial: :empty do
state :collected
state :overflow
# Deprecated states: these are no longer used but these values may still occur
# in the database.
state :timeout
state :overflow_commits_safe_size
state :overflow_diff_files_limit
state :overflow_diff_lines_limit
end
serialize :st_commits
serialize :st_diffs
after_create :reload_content
def reload_content
reload_commits
reload_diffs
end
def size
real_size.presence || diffs.size
end
def diffs(options={})
if options[:ignore_whitespace_change]
@diffs_no_whitespace ||= begin
compare = Gitlab::Git::Compare.new(
self.repository.raw_repository,
self.target_branch,
self.source_sha,
)
compare.diffs(options)
end
else
@diffs ||= load_diffs(st_diffs, options)
end
end
def commits
@commits ||= load_commits(st_commits || [])
end
def last_commit
commits.first
end
def first_commit
commits.last
end
def base_commit
return nil unless self.base_commit_sha
merge_request.target_project.commit(self.base_commit_sha)
end
def last_commit_short_sha
@last_commit_short_sha ||= last_commit.short_id
end
def dump_commits(commits)
commits.map(&:to_hash)
end
def load_commits(array)
array.map { |hash| Commit.new(Gitlab::Git::Commit.new(hash), merge_request.source_project) }
end
def dump_diffs(diffs)
if diffs.respond_to?(:map)
diffs.map(&:to_hash)
end
end
def load_diffs(raw, options)
if raw.respond_to?(:each)
Gitlab::Git::DiffCollection.new(raw, options)
else
Gitlab::Git::DiffCollection.new([])
end
end
# Collect array of Git::Commit objects
# between target and source branches
def unmerged_commits
commits = compare.commits
if commits.present?
commits = Commit.decorate(commits, merge_request.source_project).
sort_by(&:created_at).
reverse
end
commits
end
# Reload all commits related to current merge request from repo
# and save it as array of hashes in st_commits db field
def reload_commits
commit_objects = unmerged_commits
if commit_objects.present?
self.st_commits = dump_commits(commit_objects)
end
save
end
# Reload diffs between branches related to current merge request from repo
# and save it as array of hashes in st_diffs db field
def reload_diffs
new_diffs = []
if commits.size.zero?
self.state = :empty
else
diff_collection = unmerged_diffs
if diff_collection.overflow?
# Set our state to 'overflow' to make the #empty? and #collected?
# methods (generated by StateMachine) return false.
self.state = :overflow
end
self.real_size = diff_collection.real_size
if diff_collection.any?
new_diffs = dump_diffs(diff_collection)
self.state = :collected
end
end
self.st_diffs = new_diffs
self.base_commit_sha = self.repository.merge_base(self.source_sha, self.target_branch)
self.save
end
# Collect array of Git::Diff objects
# between target and source branches
def unmerged_diffs
compare.diffs(Commit.max_diff_options)
end
def repository
merge_request.target_project.repository
end
def source_sha
source_commit = merge_request.source_project.commit(source_branch)
source_commit.try(:sha)
end
def compare
@compare ||=
begin
# Update ref for merge request
merge_request.fetch_ref
Gitlab::Git::Compare.new(
self.repository.raw_repository,
self.target_branch,
self.source_sha
)
end
end
end
|
