mte/unikernel/duniverse/dune_/boot/configure.ml
2025-11-11 02:07:51 +01:00

148 lines
5.2 KiB
OCaml

#!/usr/bin/env ocaml
open StdLabels
open Printf
let list f l = sprintf "[%s]" (String.concat ~sep:"; " (List.map l ~f))
let string s = sprintf "%S" s
let option f = function
| None -> "None"
| Some x -> sprintf "Some %s" (f x)
;;
let out =
match Sys.getenv_opt "DUNE_CONFIGURE_OUTPUT" with
| None -> "src/dune_rules/setup.ml"
| Some out -> out
;;
let default_toggles : (string * [ `Disabled | `Enabled ]) list =
[ "toolchains", `Enabled
; "pkg_build_progress", `Disabled
; "lock_dev_tool", `Disabled
; "bin_dev_tools", `Disabled
; "portable_lock_dir", `Disabled
]
;;
let toggles = ref default_toggles
let toggle name v =
toggles := List.map !toggles ~f:(fun (x, y) -> x, if x = name then v else y)
;;
let toggle =
let toggles = [ "enable", `Enabled; "disable", `Disabled ] in
let options = List.map toggles ~f:fst in
fun name -> Arg.Symbol (options, fun s -> List.assoc s toggles |> toggle name)
;;
let () =
let bad fmt = ksprintf (fun s -> raise (Arg.Bad s)) fmt in
let prefix = ref None in
let library_path = ref [] in
let library_destdir = ref None in
let mandir = ref None in
let docdir = ref None in
let etcdir = ref None in
let bindir = ref None in
let sbindir = ref None in
let libexecdir = ref None in
let datadir = ref None in
let cwd = lazy (Sys.getcwd ()) in
let dir_of_string s =
if Filename.is_relative s then Filename.concat (Lazy.force cwd) s else s
in
let set_libdir s =
let dir = dir_of_string s in
library_path := dir :: !library_path;
library_destdir := Some dir
in
let set_dir v s =
let dir = dir_of_string s in
v := Some dir
in
let args =
[ "--prefix", Arg.String (set_dir prefix), "DIR where files are copied"
; ( "--libdir"
, Arg.String set_libdir
, "DIR where public libraries are looked up in the default build context. Can be \
specified multiple times new one taking precedence. The last is used as default \
destination directory for public libraries." )
; ( "--bindir"
, Arg.String (set_dir bindir)
, "DIR where public binaries are installed for the default build context" )
; ( "--sbindir"
, Arg.String (set_dir sbindir)
, "DIR where files for sbin section are installed for the default build context" )
; ( "--mandir"
, Arg.String (set_dir mandir)
, "DIR where man pages are installed for the default build context" )
; ( "--docdir"
, Arg.String (set_dir docdir)
, "DIR where documentation is installed for the default build context" )
; ( "--etcdir"
, Arg.String (set_dir etcdir)
, "DIR where configuration files are installed for the default build context" )
; ( "--libexecdir"
, Arg.String (set_dir libexecdir)
, "DIR where files for the libexec_root section are installed for the default \
build context. Use --libdir if specified" )
; ( "--datadir"
, Arg.String (set_dir datadir)
, "DIR where files for the share_root section are installed for the default build \
context" )
; ( "--toolchains"
, toggle "toolchains"
, " Enable the toolchains behaviour, allowing dune to install the compiler in a \
user-wide directory." )
; ( "--pkg-build-progress"
, toggle "pkg_build_progress"
, " Enable the displaying of package build progress.\n\
\ This flag is experimental and shouldn't be relied on by packagers." )
; ( "--lock-dev-tool"
, toggle "lock_dev_tool"
, " Enable ocamlformat dev-tool, allows 'dune fmt' to build ocamlformat and use \
it, independently from the project dependencies.\n\
\ This flag is experimental and shouldn't be relied on by packagers." )
; ( "--bin-dev-tools"
, toggle "bin_dev_tools"
, " Enable obtaining dev-tools binarys from the binary package opam repository. \
Allows fast installation of dev-tools. \n\
\ This flag is experimental and shouldn't be relied on by packagers." )
; ( "--portable-lock-dir"
, toggle "portable_lock_dir"
, "Generate portable lock dirs. If this feature is disabled then lock dirs will be \
specialized to the machine where they are generated." )
]
in
let anon s = bad "Don't know what to do with %s" s in
Arg.parse (Arg.align args) anon "Usage: ocaml configure.ml [OPTIONS]\nOptions are:";
(match !libexecdir with
| None -> libexecdir := !library_destdir
| Some _ -> ());
let oc = open_out out in
let pr fmt = fprintf oc (fmt ^^ "\n") in
pr "let library_path = %s\n" ((list string) !library_path);
pr "let roots : string option Install.Roots.t =";
pr " { lib_root = %s" (option string !library_destdir);
pr " ; man = %s" (option string !mandir);
pr " ; doc_root = %s" (option string !docdir);
pr " ; etc_root = %s" (option string !etcdir);
pr " ; share_root = %s" (option string !datadir);
pr " ; bin = %s" (option string !bindir);
pr " ; sbin = %s" (option string !sbindir);
pr " ; libexec_root = %s" (option string !libexecdir);
pr " }";
pr "";
pr "let prefix : string option = %s" (option string !prefix);
List.iter !toggles ~f:(fun (name, value) ->
pr
"let %s = `%s"
name
(match value with
| `Enabled -> "Enabled"
| `Disabled -> "Disabled"));
close_out oc
;;