vagrant/plugins/synced_folders/unix_mount_helpers.rb

106 lines
4.4 KiB
Ruby

require "shellwords"
require "vagrant/util/retryable"
module VagrantPlugins
module SyncedFolder
module UnixMountHelpers
def self.extended(klass)
if !klass.class_variable_defined?(:@@logger)
klass.class_variable_set(:@@logger, Log4r::Logger.new(klass.name.downcase))
end
klass.extend Vagrant::Util::Retryable
end
def detect_owner_group_ids(machine, guest_path, mount_options, options)
mount_uid = find_mount_options_id("uid", mount_options)
mount_gid = find_mount_options_id("gid", mount_options)
if mount_uid.nil?
if options[:owner].to_i.to_s == options[:owner].to_s
mount_uid = options[:owner]
self.class_variable_get(:@@logger).debug("Owner user ID (provided): #{mount_uid}")
else
output = {stdout: '', stderr: ''}
uid_command = "id -u #{options[:owner]}"
machine.communicate.execute(uid_command,
error_class: Vagrant::Errors::VirtualBoxMountFailed,
error_key: :virtualbox_mount_failed,
command: uid_command,
output: output[:stderr]
) { |type, data| output[type] << data if output[type] }
mount_uid = output[:stdout].chomp
self.class_variable_get(:@@logger).debug("Owner user ID (lookup): #{options[:owner]} -> #{mount_uid}")
end
else
machine.ui.warn "Detected mount owner ID within mount options. (uid: #{mount_uid} guestpath: #{guest_path})"
end
if mount_gid.nil?
if options[:group].to_i.to_s == options[:group].to_s
mount_gid = options[:group]
self.class_variable_get(:@@logger).debug("Owner group ID (provided): #{mount_gid}")
else
begin
output = {stdout: '', stderr: ''}
gid_command = "getent group #{options[:group]}"
machine.communicate.execute(gid_command,
error_class: Vagrant::Errors::VirtualBoxMountFailed,
error_key: :virtualbox_mount_failed,
command: gid_command,
output: output[:stderr]
) { |type, data| output[type] << data if output[type] }
mount_gid = output[:stdout].split(':').at(2)
self.class_variable_get(:@@logger).debug("Owner group ID (lookup): #{options[:group]} -> #{mount_gid}")
rescue Vagrant::Errors::VirtualBoxMountFailed
if options[:owner] == options[:group]
self.class_variable_get(:@@logger).debug("Failed to locate group `#{options[:group]}`. Group name matches owner. Fetching effective group ID.")
output = {stdout: ''}
result = machine.communicate.execute("id -g #{options[:owner]}",
error_check: false
) { |type, data| output[type] << data if output[type] }
mount_gid = output[:stdout].chomp if result == 0
self.class_variable_get(:@@logger).debug("Owner group ID (effective): #{mount_gid}")
end
raise unless mount_gid
end
end
else
machine.ui.warn "Detected mount group ID within mount options. (gid: #{mount_gid} guestpath: #{guest_path})"
end
{:gid => mount_gid, :uid => mount_uid}
end
def find_mount_options_id(id_name, mount_options)
id_line = mount_options.detect{|line| line.include?("#{id_name}=")}
if id_line
match = id_line.match(/,?#{Regexp.escape(id_name)}=(?<option_id>\d+),?/)
found_id = match["option_id"]
updated_id_line = [
match.pre_match,
match.post_match
].find_all{|string| !string.empty?}.join(',')
if updated_id_line.empty?
mount_options.delete(id_line)
else
idx = mount_options.index(id_line)
mount_options.delete(idx)
mount_options.insert(idx, updated_id_line)
end
end
found_id
end
def emit_upstart_notification(machine, guest_path)
# Emit an upstart event if we can
machine.communicate.sudo <<-EOH.gsub(/^ {12}/, "")
if command -v /sbin/init && /sbin/init 2>/dev/null --version | grep upstart; then
/sbin/initctl emit --no-wait vagrant-mounted MOUNTPOINT=#{guest_path}
fi
EOH
end
end
end
end