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require 'gitaly'
module Gitlab
module GitalyClient
SERVER_VERSION_FILE = 'GITALY_SERVER_VERSION'.freeze
# This function is not thread-safe because it updates Hashes in instance variables.
def self.configure_channels
@addresses = {}
@channels = {}
Gitlab.config.repositories.storages.each do |name, params|
address = params['gitaly_address']
unless address.present?
raise "storage #{name.inspect} is missing a gitaly_address"
end
unless URI(address).scheme.in?(%w(tcp unix))
raise "Unsupported Gitaly address: #{address.inspect}"
end
@addresses[name] = address
@channels[name] = new_channel(address)
end
end
def self.new_channel(address)
address = address.sub(%r{^tcp://}, '') if URI(address).scheme == 'tcp'
# NOTE: When Gitaly runs on a Unix socket, permissions are
# handled using the file system and no additional authentication is
# required (therefore the :this_channel_is_insecure flag)
# TODO: Add authentication support when Gitaly is running on a TCP socket.
GRPC::Core::Channel.new(address, {}, :this_channel_is_insecure)
end
def self.get_channel(storage)
if !Rails.env.production? && @channels.nil?
# In development mode the Rails auto-loader may reset the instance
# variables of this class. What we do here is not thread-safe. In normal
# circumstances (including production) these instance variables have
# been initialized from config/initializers.
configure_channels
end
@channels[storage]
end
def self.get_address(storage)
if !Rails.env.production? && @addresses.nil?
# In development mode the Rails auto-loader may reset the instance
# variables of this class. What we do here is not thread-safe. In normal
# circumstances (including development) these instance variables have
# been initialized from config/initializers.
configure_channels
end
@addresses[storage]
end
def self.enabled?
Gitlab.config.gitaly.enabled
end
def self.feature_enabled?(feature)
enabled? && ENV["GITALY_#{feature.upcase}"] == '1'
end
def self.migrate(feature)
is_enabled = feature_enabled?(feature)
metric_name = feature.to_s
metric_name += "_gitaly" if is_enabled
Gitlab::Metrics.measure(metric_name) do
yield is_enabled
end
end
def self.expected_server_version
path = Rails.root.join(SERVER_VERSION_FILE)
path.read.chomp
end
end
end
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