vagrant/plugins/guests/linux/cap/mount_virtualbox_shared_fol...

87 lines
3.3 KiB
Ruby

require "shellwords"
require "vagrant/util/retryable"
module VagrantPlugins
module GuestLinux
module Cap
class MountVirtualBoxSharedFolder
extend Vagrant::Util::Retryable
def self.mount_virtualbox_shared_folder(machine, name, guestpath, options)
guest_path = Shellwords.escape(guestpath)
mount_commands = ["set -e"]
if options[:owner].is_a? Integer
mount_uid = options[:owner]
else
mount_uid = "`id -u #{options[:owner]}`"
end
if options[:group].is_a? Integer
mount_gid = options[:group]
mount_gid_old = options[:group]
else
mount_gid = "`getent group #{options[:group]} | cut -d: -f3`"
mount_gid_old = "`id -g #{options[:group]}`"
end
# First mount command uses getent to get the group
mount_options = "-o uid=#{mount_uid},gid=#{mount_gid}"
mount_options += ",#{options[:mount_options].join(",")}" if options[:mount_options]
mount_commands << "mount -t vboxsf #{mount_options} #{name} #{guest_path}"
# Second mount command uses the old style `id -g`
mount_options = "-o uid=#{mount_uid},gid=#{mount_gid_old}"
mount_options += ",#{options[:mount_options].join(",")}" if options[:mount_options]
mount_commands << "mount -t vboxsf #{mount_options} #{name} #{guest_path}"
# Create the guest path if it doesn't exist
machine.communicate.sudo("mkdir -p #{guest_path}")
# Attempt to mount the folder. We retry here a few times because
# it can fail early on.
command = mount_commands.join("\n")
stderr = ""
retryable(on: Vagrant::Errors::VirtualBoxMountFailed, tries: 3, sleep: 5) do
machine.communicate.sudo(command,
error_class: Vagrant::Errors::VirtualBoxMountFailed,
error_key: :virtualbox_mount_failed,
command: command,
output: stderr,
) { |type, data| stderr = data if type == :stderr }
end
# Chown the directory to the proper user. We skip this if the
# mount options contained a readonly flag, because it won't work.
if !options[:mount_options] || !options[:mount_options].include?("ro")
chown_commands = []
chown_commands << "chown #{mount_uid}:#{mount_gid} #{guest_path}"
chown_commands << "chown #{mount_uid}:#{mount_gid_old} #{guest_path}"
exit_status = machine.communicate.sudo(chown_commands[0], error_check: false)
machine.communicate.sudo(chown_commands[1]) if exit_status != 0
end
# Emit an upstart event if we can
machine.communicate.sudo <<-EOH.gsub(/^ {12}/, "")
if command -v /sbin/init && /sbin/init --version | grep upstart; then
/sbin/initctl emit --no-wait vagrant-mounted MOUNTPOINT=#{guest_path}
fi
EOH
end
def self.unmount_virtualbox_shared_folder(machine, guestpath, options)
guest_path = Shellwords.escape(guestpath)
result = machine.communicate.sudo("umount #{guest_path}", error_check: false)
if result == 0
machine.communicate.sudo("rmdir #{guest_path}", error_check: false)
end
end
end
end
end
end