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# frozen_string_literal: true
require 'securerandom'
module Gitlab
# This class is an artifact of a time when common repository operations were
# performed by calling out to scripts in the gitlab-shell project. Now, these
# operations are all performed by Gitaly, and are mostly accessible through
# the Repository class. Prefer using a Repository to functionality here.
#
# Legacy code relating to namespaces still relies on Gitlab::Shell; it can be
# converted to a module once https://gitlab.com/groups/gitlab-org/-/epics/2320
# is completed. https://gitlab.com/gitlab-org/gitlab/-/issues/25095 tracks it.
class Shell
Error = Class.new(StandardError)
class << self
# Retrieve GitLab Shell secret token
#
# @return [String] secret token
def secret_token
@secret_token ||= begin
File.read(Gitlab.config.gitlab_shell.secret_file).chomp
end
end
# Ensure gitlab shell has a secret token stored in the secret_file
# if that was never generated, generate a new one
def ensure_secret_token!
return if File.exist?(File.join(Gitlab.config.gitlab_shell.path, '.gitlab_shell_secret'))
generate_and_link_secret_token
end
# Returns required GitLab shell version
#
# @return [String] version from the manifest file
def version_required
@version_required ||= File.read(Rails.root
.join('GITLAB_SHELL_VERSION')).strip
end
# Return GitLab shell version
#
# @return [String] version
def version
@version ||= File.read(gitlab_shell_version_file).chomp if File.readable?(gitlab_shell_version_file)
end
private
def gitlab_shell_path
File.expand_path(Gitlab.config.gitlab_shell.path)
end
def gitlab_shell_version_file
File.join(gitlab_shell_path, 'VERSION')
end
# Create (if necessary) and link the secret token file
def generate_and_link_secret_token
secret_file = Gitlab.config.gitlab_shell.secret_file
shell_path = Gitlab.config.gitlab_shell.path
unless File.size?(secret_file)
# Generate a new token of 16 random hexadecimal characters and store it in secret_file.
@secret_token = SecureRandom.hex(16)
File.write(secret_file, @secret_token)
end
link_path = File.join(shell_path, '.gitlab_shell_secret')
if File.exist?(shell_path) && !File.exist?(link_path)
FileUtils.symlink(secret_file, link_path)
end
end
end
# Move or rename a repository
#
# @example Move/rename a repository
# mv_repository("/path/to/storage", "gitlab/gitlab-ci", "randx/gitlab-ci-new")
#
# @param [String] storage project's storage path
# @param [String] disk_path current project path on disk
# @param [String] new_disk_path new project path on disk
# @return [Boolean] whether repository could be moved/renamed on disk
#
# @deprecated
def mv_repository(storage, disk_path, new_disk_path)
return false if disk_path.empty? || new_disk_path.empty?
Gitlab::Git::Repository.new(storage, "#{disk_path}.git", nil, nil).rename("#{new_disk_path}.git")
true
rescue => e
Gitlab::ErrorTracking.track_exception(e, path: disk_path, new_path: new_disk_path, storage: storage)
false
end
# Removes a repository from file system, using rm_diretory which is an alias
# for rm_namespace. Given the underlying implementation removes the name
# passed as second argument on the passed storage.
#
# @example Remove a repository
# remove_repository("/path/to/storage", "gitlab/gitlab-ci")
#
# @param [String] storage project's storage path
# @param [String] disk_path current project path on disk
#
# @deprecated
def remove_repository(storage, disk_path)
return false if disk_path.empty?
Gitlab::Git::Repository.new(storage, "#{disk_path}.git", nil, nil).remove
true
rescue => e
Rails.logger.warn("Repository does not exist: #{e} at: #{disk_path}.git") # rubocop:disable Gitlab/RailsLogger
Gitlab::ErrorTracking.track_exception(e, path: disk_path, storage: storage)
false
end
# Add empty directory for storing repositories
#
# @example Add new namespace directory
# add_namespace("default", "gitlab")
#
# @param [String] storage project's storage path
# @param [String] name namespace name
#
# @deprecated
def add_namespace(storage, name)
Gitlab::GitalyClient.allow_n_plus_1_calls do
Gitlab::GitalyClient::NamespaceService.new(storage).add(name)
end
rescue GRPC::InvalidArgument => e
raise ArgumentError, e.message
end
# Remove directory from repositories storage
# Every repository inside this directory will be removed too
#
# @example Remove namespace directory
# rm_namespace("default", "gitlab")
#
# @param [String] storage project's storage path
# @param [String] name namespace name
#
# @deprecated
def rm_namespace(storage, name)
Gitlab::GitalyClient::NamespaceService.new(storage).remove(name)
rescue GRPC::InvalidArgument => e
raise ArgumentError, e.message
end
alias_method :rm_directory, :rm_namespace
# Move namespace directory inside repositories storage
#
# @example Move/rename a namespace directory
# mv_namespace("/path/to/storage", "gitlab", "gitlabhq")
#
# @param [String] storage project's storage path
# @param [String] old_name current namespace name
# @param [String] new_name new namespace name
#
# @deprecated
def mv_namespace(storage, old_name, new_name)
Gitlab::GitalyClient::NamespaceService.new(storage).rename(old_name, new_name)
rescue GRPC::InvalidArgument => e
Gitlab::ErrorTracking.track_exception(e, old_name: old_name, new_name: new_name, storage: storage)
false
end
# Check if repository exists on disk
#
# @example Check if repository exists
# repository_exists?('default', 'gitlab-org/gitlab.git')
#
# @return [Boolean] whether repository exists or not
# @param [String] storage project's storage path
# @param [Object] dir_name repository dir name
#
# @deprecated
def repository_exists?(storage, dir_name)
Gitlab::Git::Repository.new(storage, dir_name, nil, nil).exists?
rescue GRPC::Internal
false
end
end
end
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