Current File : //usr/share/augeas/lenses/dist/mke2fs.aug
(*
Module: Mke2fs
Parses /etc/mke2fs.conf
Author: Raphael Pinson <raphink@gmail.com>
About: Reference
This lens tries to keep as close as possible to `man 5 mke2fs.conf` where possible.
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/mke2fs.conf. See <filter>.
*)
module Mke2fs =
autoload xfm
(************************************************************************
* Group: USEFUL PRIMITIVES
*************************************************************************)
(* View: comment *)
let comment = IniFile.comment IniFile.comment_re IniFile.comment_default
(* View: sep *)
let sep = IniFile.sep /=[ \t]*/ "="
(* View: empty *)
let empty = IniFile.empty
(* View: boolean
The configuration parser of e2fsprogs recognizes different values
for booleans, so list all the recognized values *)
let boolean = ("y"|"yes"|"true"|"t"|"1"|"on"|"n"|"no"|"false"|"nil"|"0"|"off")
(* View: fspath *)
let fspath = /[^ \t\n"]+/
(************************************************************************
* Group: RECORD TYPES
*************************************************************************)
(* View: entry
A generic entry for lens lns *)
let entry (kw:regexp) (lns:lens) = Build.key_value_line kw sep lns
(* View: list_sto
A list of values with given lens *)
let list_sto (kw:regexp) (lns:lens) =
entry kw (Quote.do_dquote_opt_nil (Build.opt_list [lns] Sep.comma))
(* View: entry_sto
Store a regexp as entry value *)
let entry_sto (kw:regexp) (val:regexp) =
entry kw (Quote.do_dquote_opt_nil (store val))
| entry kw (Util.del_str "\"\"")
(************************************************************************
* Group: COMMON ENTRIES
*************************************************************************)
(* View: common_entries_list
Entries with a list value *)
let common_entries_list = ("base_features"|"default_features"|"default_mntopts")
(* View: common_entries_int
Entries with an integer value *)
let common_entries_int = ("cluster_size"|"flex_bg_size"|"force_undo"
|"inode_ratio"|"inode_size"|"num_backup_sb")
(* View: common_entries_bool
Entries with a boolean value *)
let common_entries_bool = ("auto_64-bit_support"|"discard"
|"enable_periodic_fsck"|"lazy_itable_init"
|"lazy_journal_init"|"packed_meta_blocks")
(* View: common_entries_string
Entries with a string value *)
let common_entries_string = ("encoding"|"journal_location")
(* View: common_entries_double
Entries with a double value *)
let common_entries_double = ("reserved_ratio")
(* View: common_entry
Entries shared between <defaults> and <fs_types> sections *)
let common_entry = list_sto common_entries_list (key Rx.word)
| entry_sto common_entries_int Rx.integer
| entry_sto common_entries_bool boolean
| entry_sto common_entries_string Rx.word
| entry_sto common_entries_double Rx.decimal
| entry_sto "blocksize" ("-"? . Rx.integer)
| entry_sto "hash_alg" ("legacy"|"half_md4"|"tea")
| entry_sto "errors" ("continue"|"remount-ro"|"panic")
| list_sto "features"
([del /\^/ "^" . label "disable"]?
. key Rx.word)
| list_sto "options"
(key Rx.word . Util.del_str "="
. store Rx.word)
(************************************************************************
* Group: DEFAULTS SECTION
*************************************************************************)
(* View: defaults_entry
Possible entries under the <defaults> section *)
let defaults_entry = entry_sto "fs_type" Rx.word
| entry_sto "undo_dir" fspath
(* View: defaults_title
Title for the <defaults> section *)
let defaults_title = IniFile.title "defaults"
(* View: defaults
A defaults section *)
let defaults = IniFile.record defaults_title
((Util.indent . (defaults_entry|common_entry)) | comment)
(************************************************************************
* Group: FS_TYPES SECTION
*************************************************************************)
(* View: fs_types_record
Fs group records under the <fs_types> section *)
let fs_types_record = [ label "filesystem"
. Util.indent . store Rx.word
. del /[ \t]*=[ \t]*\{[ \t]*\n/ " = {\n"
. ((Util.indent . common_entry) | empty | comment)*
. del /[ \t]*\}[ \t]*\n/ " }\n" ]
(* View: fs_types_title
Title for the <fs_types> section *)
let fs_types_title = IniFile.title "fs_types"
(* View: fs_types
A fs_types section *)
let fs_types = IniFile.record fs_types_title
(fs_types_record | comment)
(************************************************************************
* Group: OPTIONS SECTION
*************************************************************************)
(* View: options_entries_int
Entries with an integer value *)
let options_entries_int = ("proceed_delay"|"sync_kludge")
(* View: options_entries_bool
Entries with a boolean value *)
let options_entries_bool = ("old_bitmaps")
(* View: options_entry
Possible entries under the <options> section *)
let options_entry = entry_sto options_entries_int Rx.integer
| entry_sto options_entries_bool boolean
(* View: defaults_title
Title for the <options> section *)
let options_title = IniFile.title "options"
(* View: options
A options section *)
let options = IniFile.record options_title
((Util.indent . options_entry) | comment)
(************************************************************************
* Group: LENS AND FILTER
*************************************************************************)
(* View: lns
The mke2fs lens
*)
let lns = (empty|comment)* . (defaults|fs_types|options)*
(* Variable: filter *)
let filter = incl "/etc/mke2fs.conf"
let xfm = transform lns filter
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