From 7e470547951d5323623d82c61b46c0a8071e5b70 Mon Sep 17 00:00:00 2001 From: f Date: Sat, 25 Mar 2023 14:50:36 -0300 Subject: [PATCH] feat: implementar un servicio liviano de git-lfs #9361 --- app/services/lfs_object_service.rb | 64 ++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 app/services/lfs_object_service.rb diff --git a/app/services/lfs_object_service.rb b/app/services/lfs_object_service.rb new file mode 100644 index 00000000..44881bd5 --- /dev/null +++ b/app/services/lfs_object_service.rb @@ -0,0 +1,64 @@ +# frozen_string_literal: true + +# Representa un objeto git LFS +class LfsObjectService + attr_reader :site, :blob, :usuarie + + # @param :site [Site] + # @param :blob [ActiveStorage::Blob] + def initialize(site:, blob:, usuarie:) + @site = site + @blob = blob + @usuarie = usuarie + end + + def process + # Crear el directorio + FileUtils.mkdir_p(File.dirname(object_path)) + + # Mover el archivo + FileUtils.mv(path, object_path) unless File.exist? object_path + + # Crear el pointer + Site::Writer.new(site: site, file: path, content: pointer).save + + # Commitear el pointer + site.repository.commit(file: path, usuarie: usuarie, message: File.basename(path)) + + # Eliminar el pointer + FileUtils.rm(path) + + # Hacer link duro del objeto al archivo + FileUtils.hardlink(object_path, path) + end + + # @return [String] + def path + @path ||= blob.service.path_for(blob.key) + end + + # @return [String] + def digest + @digest ||= Digest::SHA256.file(path) + end + + # @return [String] + def object_path + @git_lfs_object_path ||= File.join(site.path, '.git', 'lfs', 'objects', digest[0..1], digest[2..3], digest) + end + + # @return [Integer] + def size + @size ||= File.size(path) + end + + # @return [String] + def pointer + @pointer ||= + <<~POINTER + version https://git-lfs.github.com/spec/v1 + oid sha256:#{digest} + size #{size} + POINTER + end +end