100 lines
3.6 KiB
Ruby
100 lines
3.6 KiB
Ruby
module VagrantPlugins
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module GuestLinux
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module Cap
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class MountVirtualBoxSharedFolder
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def self.mount_virtualbox_shared_folder(machine, name, guestpath, options)
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expanded_guest_path = machine.guest.capability(
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:shell_expand_guest_path, guestpath)
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mount_commands = []
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if options[:owner].is_a? Integer
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mount_uid = options[:owner]
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else
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mount_uid = "`id -u #{options[:owner]}`"
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end
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if options[:group].is_a? Integer
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mount_gid = options[:group]
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mount_gid_old = options[:group]
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else
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mount_gid = "`getent group #{options[:group]} | cut -d: -f3`"
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mount_gid_old = "`id -g #{options[:group]}`"
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end
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# First mount command uses getent to get the group
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mount_options = "-o uid=#{mount_uid},gid=#{mount_gid}"
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mount_options += ",#{options[:mount_options].join(",")}" if options[:mount_options]
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mount_commands << "mount -t vboxsf #{mount_options} #{name} #{expanded_guest_path}"
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# Second mount command uses the old style `id -g`
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mount_options = "-o uid=#{mount_uid},gid=#{mount_gid_old}"
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mount_options += ",#{options[:mount_options].join(",")}" if options[:mount_options]
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mount_commands << "mount -t vboxsf #{mount_options} #{name} #{expanded_guest_path}"
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# Create the guest path if it doesn't exist
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machine.communicate.sudo("mkdir -p #{expanded_guest_path}")
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# Attempt to mount the folder. We retry here a few times because
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# it can fail early on.
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attempts = 0
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while true
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success = true
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stderr = ""
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mount_commands.each do |command|
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no_such_device = false
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stderr = ""
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status = machine.communicate.sudo(command, error_check: false) do |type, data|
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if type == :stderr
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no_such_device = true if data =~ /No such device/i
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stderr += data.to_s
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end
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end
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success = status == 0 && !no_such_device
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break if success
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end
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break if success
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attempts += 1
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if attempts > 10
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raise Vagrant::Errors::LinuxMountFailed,
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command: mount_commands.join("\n"),
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output: stderr
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end
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sleep(2*attempts)
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end
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# Chown the directory to the proper user. We skip this if the
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# mount options contained a readonly flag, because it won't work.
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if !options[:mount_options] || !options[:mount_options].include?("ro")
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chown_commands = []
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chown_commands << "chown #{mount_uid}:#{mount_gid} #{expanded_guest_path}"
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chown_commands << "chown #{mount_uid}:#{mount_gid_old} #{expanded_guest_path}"
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exit_status = machine.communicate.sudo(chown_commands[0], error_check: false)
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machine.communicate.sudo(chown_commands[1]) if exit_status != 0
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end
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# Emit an upstart event if we can
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if machine.communicate.test("test -x /sbin/initctl")
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machine.communicate.sudo(
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"/sbin/initctl emit --no-wait vagrant-mounted MOUNTPOINT=#{expanded_guest_path}")
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end
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end
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def self.unmount_virtualbox_shared_folder(machine, guestpath, options)
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result = machine.communicate.sudo(
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"umount #{guestpath}", error_check: false)
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if result == 0
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machine.communicate.sudo("rmdir #{guestpath}", error_check: false)
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end
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end
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end
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end
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end
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end
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