Module B0_cmdlet


Cmdlets are used to define custom software life-cycle procedures. Examples range from invoking linters on your sources to perform post build checks or actions.



type t

The type for cmdlets.

type cmd = [
| `Cmd of t -> argv:string list -> B00_std.Os.Exit.t

The type for cmdlet commands. argv has the arguments for the cmdlet and the name of the cmdlet is in argv.(0), it can be given as is to your command line parsing technology, see for example Cli.

val v : ?⁠doc:string -> ?⁠meta:B0_meta.t -> string -> cmd -> t

v n cmd ~doc ~meta is a cmdlet named n implemented by cmd with doc string doc and metadata meta.

val cmd : t -> cmd

cmd c is the command of the cmdlet.

Command line interaction

module Cli : sig ... end

Command line interaction.

B0 definition API

include B0_def.S with type t := t
type t

The type of defined values.

val define : ?⁠doc:string -> ?⁠meta:B0_meta.t -> string -> B0_def.def

define ~doc ~meta n defines name n in the current scope with documentation string doc (defaults to "undocumented")e and metadata meta (defaults to B0_meta.empty). Defining a duplicate value in a scope raises Duplicate.

val def_kind : string

def_kind is the kind of defined value.

val def : t -> B0_def.def

def v is the definition of value v.

val name : t -> string

name v is v's name.

val doc : t -> string

doc v is v's documentation string.

val equal : t -> t -> bool

equal v0 v1 is true iff v0 and v1 have the same name.

val compare : t -> t -> int

compare v0 v1 sorts v0 and v0 in lexicographical order.


val meta : t -> B0_meta.t

meta v is v's metadata.

val has_meta : 'a B0_meta.key -> t -> bool

has_meta k u is B0_meta.mem k (B0_unit.meta u).

val find_meta : 'a B0_meta.key -> t -> 'a option

find_meta k u is B0_meta.find k (B0_unit.meta u).

val get_meta : 'a B0_meta.key -> t -> ('a, string) Stdlib.result

get_meta m k u is Ok v if find_meta k u is Some v and a final user friendly error message if None.

Add & Lookup

val add : t -> unit

add v adds the value v to the list of defined values.

val list : unit -> t list

list () is the list of units. FIXME scope that.

val find : string -> t option

find n is the value named n (if any).

val get : string -> t

get n looks up the value named n and errors the B0 file if there no such n.

val get_or_suggest : string -> (tt list) Stdlib.result

get_or_suggest n is the value named n or a (possibly empty) list of suggested values whose name could match n.

val get_list : string list -> (t list, string) Stdlib.result

get_list ns are the value named ns or an error that indicates the names that could not be found with suggested names.


val pp_name_str : string B00_std.Fmt.t

pp_name_str v pretty prints value names.

val pp_name : t B00_std.Fmt.t

pp_name v formats v's name.

val pp_doc : t B00_std.Fmt.t

pp_doc formats v's doc string.

val pp_synopsis : t B00_std.Fmt.t

pp_synopsis formats v's name and its doc string.

val pp : t B00_std.Fmt.t

pp formats v 's name, its doc string and its metadata dictionary.

Value set and maps

module Set : Stdlib.Set.S with type Set.elt = t

Value sets.

module Map : Stdlib.Map.S with type Map.key = t

Value maps.