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# frozen_string_literal: true
#
# This class is used by Import/Export to move files and folders from a source folders into a target folders
# that can already have the same folders in it, resolving in a merged folder.
#
# Example:
#
# source path
# |-- tree
# | |-- project
# | |-- labels.ndjson
# |-- uploads
# | |-- folder1
# | | |-- image1.png
# | |-- folder2
# | | |-- image2.png
#
# target path
# |-- tree
# | |-- project
# | |-- issues.ndjson
# |-- uploads
# | |-- folder1
# | | |-- image3.png
# | |-- folder3
# | | |-- image4.png
#
# target path after merge
# |-- tree
# | |-- project
# | | |-- issues.ndjson
# | | |-- labels.ndjson
# |-- uploads
# | |-- folder1
# | | |-- image1.png
# | | |-- image3.png
# | |-- folder2
# | | |-- image2.png
# | |-- folder3
# | | |-- image4.png
module Gitlab
module ImportExport
class RecursiveMergeFolders
DEFAULT_DIR_MODE = 0o700
def self.merge(source_path, target_path)
Gitlab::Utils.check_path_traversal!(source_path)
Gitlab::Utils.check_path_traversal!(target_path)
Gitlab::Utils.check_allowed_absolute_path!(source_path, [Dir.tmpdir])
recursive_merge(source_path, target_path)
end
def self.recursive_merge(source_path, target_path)
Dir.children(source_path).each do |child|
source_child = File.join(source_path, child)
target_child = File.join(target_path, child)
next if File.lstat(source_child).symlink?
if File.directory?(source_child)
FileUtils.mkdir_p(target_child, mode: DEFAULT_DIR_MODE) unless File.exist?(target_child)
recursive_merge(source_child, target_child)
else
FileUtils.mv(source_child, target_child)
end
end
end
private_class_method :recursive_merge
end
end
end
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