gitlab-org--gitlab-foss/lib/gitlab/gitaly_client/commit.rb
2017-06-21 17:31:20 +02:00

73 lines
2.4 KiB
Ruby

module Gitlab
module GitalyClient
class Commit
# The ID of empty tree.
# See http://stackoverflow.com/a/40884093/1856239 and https://github.com/git/git/blob/3ad8b5bf26362ac67c9020bf8c30eee54a84f56d/cache.h#L1011-L1012
EMPTY_TREE_ID = '4b825dc642cb6eb9a060e54bf8d69288fbee4904'.freeze
def initialize(repository)
@gitaly_repo = repository.gitaly_repository
@repository = repository
end
def is_ancestor(ancestor_id, child_id)
request = Gitaly::CommitIsAncestorRequest.new(
repository: @gitaly_repo,
ancestor_id: ancestor_id,
child_id: child_id
)
GitalyClient.call(@repository.storage, :commit, :commit_is_ancestor, request).value
end
def diff_from_parent(commit, options = {})
request_params = commit_diff_request_params(commit, options)
request_params[:ignore_whitespace_change] = options.fetch(:ignore_whitespace_change, false)
request = Gitaly::CommitDiffRequest.new(request_params)
response = GitalyClient.call(@repository.storage, :diff, :commit_diff, request)
Gitlab::Git::DiffCollection.new(GitalyClient::DiffStitcher.new(response), options)
end
def commit_deltas(commit)
request = Gitaly::CommitDeltaRequest.new(commit_diff_request_params(commit))
response = GitalyClient.call(@repository.storage, :diff, :commit_delta, request)
response.flat_map do |msg|
msg.deltas.map { |d| Gitlab::Git::Diff.new(d) }
end
end
def tree_entry(ref, path, limit = nil)
request = Gitaly::TreeEntryRequest.new(
repository: @gitaly_repo,
revision: ref,
path: path.dup.force_encoding(Encoding::ASCII_8BIT),
limit: limit.to_i
)
response = GitalyClient.call(@repository.storage, :commit, :tree_entry, request)
entry = response.first
return unless entry.oid.present?
if entry.type == :BLOB
rest_of_data = response.reduce("") { |memo, msg| memo << msg.data }
entry.data += rest_of_data
end
entry
end
private
def commit_diff_request_params(commit, options = {})
parent_id = commit.parents[0]&.id || EMPTY_TREE_ID
{
repository: @gitaly_repo,
left_commit_id: parent_id,
right_commit_id: commit.id,
paths: options.fetch(:paths, [])
}
end
end
end
end