debian-mirror-gitlab/lib/gitlab/shell.rb

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# frozen_string_literal: true
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require 'securerandom'
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module Gitlab
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# 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.
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class Shell
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Error = Class.new(StandardError)
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PERMITTED_ACTIONS = %w[
mv_repository remove_repository add_namespace rm_namespace mv_namespace
repository_exists?
].freeze
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class << self
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# Retrieve GitLab Shell secret token
#
# @return [String] secret token
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def secret_token
@secret_token ||= begin
File.read(Gitlab.config.gitlab_shell.secret_file).chomp
end
end
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# Ensure gitlab shell has a secret token stored in the secret_file
# if that was never generated, generate a new one
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def ensure_secret_token!
return if File.exist?(File.join(Gitlab.config.gitlab_shell.path, '.gitlab_shell_secret'))
generate_and_link_secret_token
end
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# Returns required GitLab shell version
#
# @return [String] version from the manifest file
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def version_required
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@version_required ||= File.read(Rails.root
.join('GITLAB_SHELL_VERSION')).strip
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end
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# 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
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private
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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
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# 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)
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# It could happen that link_path is a broken symbolic link.
# In that case !File.exist?(link_path) is true, but we still want to overwrite the (broken) symbolic link.
FileUtils.ln_sf(secret_file, link_path)
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end
end
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end
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# Move or rename a repository
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#
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# @example Move/rename a repository
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# mv_repository("/path/to/storage", "gitlab/gitlab-ci", "randx/gitlab-ci-new")
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#
# @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
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#
# @deprecated
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def mv_repository(storage, disk_path, new_disk_path)
return false if disk_path.empty? || new_disk_path.empty?
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Gitlab::Git::Repository.new(storage, "#{disk_path}.git", nil, nil).rename("#{new_disk_path}.git")
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true
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rescue StandardError => e
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Gitlab::ErrorTracking.track_exception(e, path: disk_path, new_path: new_disk_path, storage: storage)
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false
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end
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# 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.
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#
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# @example Remove a repository
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# remove_repository("/path/to/storage", "gitlab/gitlab-ci")
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#
# @param [String] storage project's storage path
# @param [String] disk_path current project path on disk
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#
# @deprecated
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def remove_repository(storage, disk_path)
return false if disk_path.empty?
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Gitlab::Git::Repository.new(storage, "#{disk_path}.git", nil, nil).remove
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true
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rescue StandardError => e
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Gitlab::AppLogger.warn("Repository does not exist: #{e} at: #{disk_path}.git")
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Gitlab::ErrorTracking.track_exception(e, path: disk_path, storage: storage)
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false
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end
# Add empty directory for storing repositories
#
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# @example Add new namespace directory
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# add_namespace("default", "gitlab")
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#
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# @param [String] storage project's storage path
# @param [String] name namespace name
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#
# @deprecated
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def add_namespace(storage, name)
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Gitlab::GitalyClient.allow_n_plus_1_calls do
Gitlab::GitalyClient::NamespaceService.new(storage).add(name)
end
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rescue GRPC::InvalidArgument => e
raise ArgumentError, e.message
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end
# Remove directory from repositories storage
# Every repository inside this directory will be removed too
#
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# @example Remove namespace directory
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# rm_namespace("default", "gitlab")
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#
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# @param [String] storage project's storage path
# @param [String] name namespace name
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#
# @deprecated
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def rm_namespace(storage, name)
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Gitlab::GitalyClient::NamespaceService.new(storage).remove(name)
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rescue GRPC::InvalidArgument => e
raise ArgumentError, e.message
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end
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alias_method :rm_directory, :rm_namespace
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# Move namespace directory inside repositories storage
#
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# @example Move/rename a namespace directory
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# mv_namespace("/path/to/storage", "gitlab", "gitlabhq")
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#
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# @param [String] storage project's storage path
# @param [String] old_name current namespace name
# @param [String] new_name new namespace name
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#
# @deprecated
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def mv_namespace(storage, old_name, new_name)
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Gitlab::GitalyClient::NamespaceService.new(storage).rename(old_name, new_name)
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rescue GRPC::InvalidArgument => e
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Gitlab::ErrorTracking.track_exception(e, old_name: old_name, new_name: new_name, storage: storage)
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false
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end
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# 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
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#
# @deprecated
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def repository_exists?(storage, dir_name)
Gitlab::Git::Repository.new(storage, dir_name, nil, nil).exists?
rescue GRPC::Internal
false
end
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end
end