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Mini Shell
Mini Shell
(*
Module: Automounter
Parses automounter file based maps
Author: Dominic Cleal <dcleal@redhat.com>
About: Reference
See autofs(5)
About: License
This file is licenced under the LGPL v2+, like the rest of Augeas.
About: Lens Usage
To be documented
About: Configuration files
This lens applies to /etc/auto.*, auto_*, excluding known scripts.
About: Examples
The <Test_Automounter> file contains various examples and tests.
*)
module Automounter =
autoload xfm
(************************************************************************
* Group: USEFUL PRIMITIVES
*************************************************************************)
(* View: eol *)
let eol = Util.eol
(* View: empty *)
let empty = Util.empty
(* View: comment *)
let comment = Util.comment
(* View: path *)
let path = /[^-+#: \t\n][^#: \t\n]*/
(* View: hostname *)
let hostname = /[^-:#\(\), \n\t][^:#\(\), \n\t]*/
(* An option label can't contain comma, comment, equals, or space *)
let optlabel = /[^,#:\(\)= \n\t]+/
let spec = /[^,#:\(\)= \n\t][^ \n\t]*/
(* View: weight *)
let weight = Rx.integer
(* View: map_name *)
let map_name = /[^: \t\n]+/
(* View: entry_multimount_sep
Separator for multimount entries, permits line spanning with "\" *)
let entry_multimount_sep = del /[ \t]+(\\\\[ \t]*\n[ \t]+)?/ " "
(************************************************************************
* Group: ENTRIES
*************************************************************************)
(* View: entry_key
Key for a map entry *)
let entry_mkey = store path
(* View: entry_path
Path component of an entry location *)
let entry_path = [ label "path" . store path ]
(* View: entry_host
Host component with optional weight of an entry location *)
let entry_host = [ label "host" . store hostname
. ( Util.del_str "(" . [ label "weight"
. store weight ] . Util.del_str ")" )? ]
(* View: comma_sep_list
Parses options for filesystems *)
let comma_sep_list (l:string) =
let value = [ label "value" . Util.del_str "=" . store Rx.neg1 ] in
let lns = [ label l . store optlabel . value? ] in
Build.opt_list lns Sep.comma
(* View: entry_options *)
let entry_options = Util.del_str "-" . comma_sep_list "opt" . Util.del_ws_tab
(* View: entry_location
A single location with one or more hosts, and one path *)
let entry_location = ( entry_host . ( Sep.comma . entry_host )* )?
. Sep.colon . entry_path
(* View: entry_locations
Multiple locations (each with one or more hosts), separated by spaces *)
let entry_locations = [ label "location" . counter "location"
. [ seq "location" . entry_location ]
. ( [ Util.del_ws_spc . seq "location" . entry_location ] )* ]
(* View: entry_multimount
Parses one of many mountpoints given for a multimount line *)
let entry_multimount = entry_mkey . Util.del_ws_tab . entry_options? . entry_locations
(* View: entry_multimounts
Parses multiple mountpoints given on an entry line *)
let entry_multimounts = [ label "mount" . counter "mount"
. [ seq "mount" . entry_multimount ]
. ( [ entry_multimount_sep . seq "mount" . entry_multimount ] )* ]
(* View: entry
A single map entry from start to finish, including multi-mounts *)
let entry = [ seq "entry" . entry_mkey . Util.del_ws_tab . entry_options?
. ( entry_locations | entry_multimounts ) . Util.eol ]
(* View: include
An include line starting with a "+" and a map name *)
let include = [ seq "entry" . store "+" . Util.del_opt_ws ""
. [ label "map" . store map_name ] . Util.eol ]
(* View: lns *)
let lns = ( empty | comment | entry | include ) *
(* Variable: filter
Exclude scripts/executable maps from here *)
let filter = incl "/etc/auto.*"
. incl "/etc/auto_*"
. excl "/etc/auto.master"
. excl "/etc/auto_master"
. excl "/etc/auto.net"
. excl "/etc/auto.smb"
. Util.stdexcl
let xfm = transform lns filter
Zerion Mini Shell 1.0