package mirage

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in-package search v0.2.0

package mirage

mirage

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include module type of struct include Functoria_key.Arg end

Cross-stage command-line arguments.

Argument converters

type 'a serialize = Format.formatter -> 'a -> unit

The type for command-line argument serializers. A value of type 'a serialize generates a syntactically valid OCaml representation which evaluates to a value of type 'a.

type 'a runtime_conv = string

The type for command-line argument converters used at runtime. A value of type 'a runtime_conv is a symbol name of type Cmdliner.Arg.converter.

type 'a converter = 'a Functoria_key.Arg.converter

The type for argument converters.

val conv : 
  conv:'a Cmdliner.Arg.converter ->
  serialize:'a serialize ->
  runtime_conv:'a runtime_conv ->
  'a converter

conv c s r is the argument converter using c to convert user strings into OCaml value, s to convert OCaml values into strings interpretable as OCaml expressions, and the function named r to convert user strings into OCaml values at runtime.

val string : string converter

string converts strings.

val bool : bool converter

bool converts booleans.

val int : int converter

int converts integers.

val list : 'a converter -> 'a list converter

list t converts lists of ts.

val some : 'a converter -> 'a option converter

some t converts t options.

Arguments and their information

type 'a t = 'a Functoria_key.Arg.t

The type for arguments holding data of type 'a.

type info = Functoria_key.Arg.info

The type for information about cross-stage command-line arguments. See Cmdliner's arguments.

val info : 
  ?docs:string ->
  ?docv:string ->
  ?doc:string ->
  ?env:string ->
  string list ->
  info

Define cross-stage information for an argument. See Cmdliner.Arg.info. If not set, docs is "UNIKERNEL PARAMETERS".

Optional Arguments

type stage = [

| `Configure
| `Run
| `Both

]

The type for specifying at which stage an argument is available.

`Configure means that the argument is read on the command-line at configuration-time.
`Run means that the argument is read on the command-line at runtime.
`Both means that the argument is read on the command-line both at configuration-time and run-time.

val opt : ?stage:stage -> 'a converter -> 'a -> info -> 'a t

opt conv v i is similar to Cmdliner.Arg.opt but for cross-stage optional command-line arguments. If not set, stage is `Both.

val required : ?stage:stage -> 'a converter -> info -> 'a option t

required conv i is similar to Cmdliner.Arg.required but for cross-stage required command-line arguments. If not set, stage is `Both.

val flag : ?stage:stage -> info -> bool t

flag i is similar to Cmdliner.Arg.flag but for cross-stage command-line flags. If not set, stage is `Both.

val ipv4_address : Ipaddr.V4.t converter

val ipv4 : Ipaddr.V4.Prefix.t converter

val ipv6_address : Ipaddr.V6.t converter

val ipv6 : Ipaddr.V6.Prefix.t converter

val ip_address : Ipaddr.t converter