fix init.ml

This commit is contained in:
cqc
2024-02-17 14:34:49 -06:00
parent cf00deb1ed
commit 3105e2bb8e
3 changed files with 415 additions and 3 deletions

382
.config/store.ml Normal file
View File

@ -0,0 +1,382 @@
open Js_of_ocaml
open Lwt.Infix
module F = Fmt
module Cohttp_backend = Cohttp_lwt_jsoo
module Git_af = struct
open Lwt.Infix
type error = |
let git_af_scheme : [ `HTTP | `HTTPS ] Mimic.value =
Mimic.make ~name:"git-af-scheme"
let git_af_port : int Mimic.value = Mimic.make ~name:"git-af-port"
let git_af_hostname : string Mimic.value =
Mimic.make ~name:"git-af-hostname"
let pp_error : error Fmt.t = fun _ppf -> function _ -> .
let with_redirects ?(max = 10) ~f uri =
if max < 10 then invalid_arg "with_redirects";
let tbl = Hashtbl.create 0x10 in
let rec go max uri =
f uri >>= fun (resp, body) ->
let status_code =
Cohttp.(Response.status resp |> Code.code_of_status)
in
if Cohttp.Code.is_redirection status_code then
match
Cohttp.(Response.headers resp |> Header.get_location)
with
| Some uri' when Hashtbl.mem tbl uri' || max = 0 ->
Lwt.return (resp, body)
| Some uri' ->
Hashtbl.add tbl uri' ();
Cohttp_lwt.Body.drain_body body >>= fun () ->
go (pred max) uri'
| None -> Lwt.return (resp, body)
else Lwt.return (resp, body)
in
go max uri
let get ~ctx:_ ?(headers = []) uri =
Firebug.console##log (Js.string "Git_Cohttp_console.get()\n");
let headers = Cohttp.Header.of_list headers in
let f uri = Cohttp_backend.Client.get ~headers uri in
with_redirects ~f uri >>= fun (_resp, body) ->
Cohttp_lwt.Body.to_string body >>= fun body ->
Lwt.return_ok ((), body)
let post ~ctx:_ ?(headers = []) uri body =
let headers = Cohttp.Header.of_list headers in
let body = Cohttp_lwt.Body.of_string body in
let f uri =
Cohttp_backend.Client.post ~headers ~chunked:false ~body uri
in
with_redirects ~f uri >>= fun (_resp, body) ->
Cohttp_lwt.Body.to_string body >>= fun body ->
Lwt.return_ok ((), body)
end
module Git_console_http = struct
open Lwt.Infix
let context ctx =
(* HTTP *)
let edn = Mimic.make ~name:"af-http-endpoint" in
let k1 git_af_scheme git_af_hostname git_af_port =
match git_af_scheme with
| `HTTP -> Lwt.return_some (git_af_hostname, git_af_port)
| _ -> Lwt.return_none
in
let ctx =
Mimic.fold edn
Mimic.Fun.
[
req Git_af.git_af_scheme;
req Git_af.git_af_hostname;
dft Git_af.git_af_port 80;
]
~k:k1 ctx
in
(* HTTPS *)
let edn = Mimic.make ~name:"af-https-endpoint" in
let k1 git_af_scheme git_af_hostname git_af_port =
match git_af_scheme with
| `HTTPS -> Lwt.return_some (git_af_hostname, git_af_port)
| _ -> Lwt.return_none
in
let ctx =
Mimic.fold edn
Mimic.Fun.
[
req Git_af.git_af_scheme;
req Git_af.git_af_hostname;
dft Git_af.git_af_port 443;
]
~k:k1 ctx
in
ctx
module HTTP = struct
type state =
| Handshake
| Get of {
advertised_refs : string;
uri : Uri.t;
headers : (string * string) list;
ctx : Mimic.ctx;
}
| Post of {
mutable output : string;
uri : Uri.t;
headers : (string * string) list;
ctx : Mimic.ctx;
}
| Error
type flow = { endpoint : Uri.t; mutable state : state }
type error = [ `Msg of string ]
type write_error = [ `Closed | `Msg of string ]
let pp_error ppf (`Msg err) = Fmt.string ppf err
let pp_write_error ppf = function
| `Closed -> Fmt.string ppf "Connection closed by peer"
| `Msg err -> Fmt.string ppf err
let write t cs =
match t.state with
| Handshake | Get _ ->
Lwt.return_error (`Msg "Handshake has not been done")
| Error -> Lwt.return_error (`Msg "Handshake got an error")
| Post ({ output; _ } as v) ->
let output = output ^ Cstruct.to_string cs in
v.output <- output;
Lwt.return_ok ()
let writev t css =
let rec go = function
| [] -> Lwt.return_ok ()
| x :: r -> (
write t x >>= function
| Ok () -> go r
| Error _ as err -> Lwt.return err)
in
go css
let read t =
match t.state with
| Handshake ->
Lwt.return_error (`Msg "Handshake has not been done")
| Error -> Lwt.return_error (`Msg "Handshake got an error")
| Get { advertised_refs; uri; headers; ctx } ->
t.state <- Post { output = ""; uri; headers; ctx };
Lwt.return_ok (`Data (Cstruct.of_string advertised_refs))
| Post { output; uri; headers; ctx } -> (
Git_af.post ~ctx ~headers uri output >>= function
| Ok (_resp, contents) ->
Lwt.return_ok (`Data (Cstruct.of_string contents))
| Error err ->
Lwt.return_error
(`Msg (Fmt.str "%a" Git_af.pp_error err)))
let close _ = Lwt.return_unit
type endpoint = Uri.t
let connect endpoint =
Firebug.console##log
(Js.string "Git_Console_http.HTTP.connect()\n");
Lwt.return_ok { endpoint; state = Handshake }
end
let http_endpoint, http_protocol =
Mimic.register ~name:"http" (module HTTP)
let connect (ctx : Mimic.ctx) =
Firebug.console##log (Js.string "Git_Console_http.connect()\n");
let module T = (val Mimic.repr http_protocol) in
let edn = Mimic.make ~name:"http-endpoint" in
let k0 uri = Lwt.return_some uri in
let k1 git_transmission git_scheme =
match (git_transmission, git_scheme) with
| `HTTP (uri, _), (`HTTP | `HTTPS) -> Lwt.return_some uri
| _ -> Lwt.return_none
in
let k2 git_scheme git_uri git_http_headers =
match git_scheme with
| `Git | `SSH | `Scheme _ -> Lwt.return_none
| `HTTP | `HTTPS ->
let headers =
("content-type", "application/x-git-upload-pack-request")
:: git_http_headers
in
let handshake ~uri0 ~uri1 = function
| T.T flow -> (
Firebug.console##log
(Js.string
(F.str
"Git_Console_http.connect.k2.handshake \
uri0='%s' uri1='%s'\n"
(Uri.to_string uri0) (Uri.to_string uri1)));
let ctx = context Mimic.empty in
Git_af.get ~ctx ~headers uri0 >>= function
| Ok (_resp, advertised_refs) ->
flow.state <-
HTTP.Get
{ advertised_refs; uri = uri1; headers; ctx };
Lwt.return_unit
| Error _ ->
flow.state <- Error;
Lwt.return_unit)
| _ -> Lwt.return_unit
in
let git_transmission = `HTTP (git_uri, handshake) in
Lwt.return_some git_transmission
in
let ctx =
Mimic.fold http_endpoint Mimic.Fun.[ req edn ] ~k:k0 ctx
in
let ctx =
Mimic.fold edn
Mimic.Fun.
[ req Smart_git.git_transmission; req Smart_git.git_scheme ]
~k:k1 ctx
in
let ctx =
Mimic.fold Smart_git.git_transmission
Mimic.Fun.
[
req Smart_git.git_scheme;
req Smart_git.git_uri;
dft Smart_git.git_http_headers List.[];
]
~k:k2 ctx
in
Lwt.return ctx
end
module Config = struct
open Irmin.Backend.Conf
let spec = Spec.v "console_js_git"
module Key = struct
let reference : Git.Reference.t Irmin.Type.t =
let of_string str =
Git.Reference.of_string str |> Result.get_ok
in
let to_string r = Git.Reference.to_string r in
Irmin.Type.(map string) of_string to_string
let head =
key ~spec ~doc:"The main branch of the Git repository." "head"
Irmin.Type.(option reference)
None
let bare =
key ~spec ~doc:"Do not expand the filesystem on the disk."
"bare" Irmin.Type.bool false
let level =
key ~spec ~doc:"The Zlib compression level." "level"
Irmin.Type.(option int)
None
let buffers =
key ~spec ~doc:"The number of 4K pre-allocated buffers."
"buffers"
Irmin.Type.(option int)
None
end
let init ?head ?level ?buffers _root =
let module C = Irmin.Backend.Conf in
let config = C.empty spec in
let config = C.add config Key.head head in
let config = C.add config Key.level level in
let config = C.add config Key.buffers buffers in
C.verify config
end
module S = struct
module Schema =
Irmin_git.Schema.Make (Git.Mem.Store) (Irmin.Contents.String)
(Irmin_git.Branch.Make (Irmin.Branch.String))
module Sync' = struct
module GitMemSync = Git.Mem.Sync (Git.Mem.Store)
include GitMemSync
(* This is where the fetch and push are broken *)
end
module SMaker = Irmin_git.Maker (Git.Mem.Store) (Sync')
module SMade = SMaker.Make (Schema)
include SMade
type endpoint = Mimic.ctx * Smart_git.Endpoint.t
let remote ?(ctx = Mimic.empty) ?headers uri =
E
(Firebug.console##log
(Js.string (F.str "Nav.S.remote(uri=%s)\n" uri));
let ( ! ) f a b = f b a in
match Smart_git.Endpoint.of_string uri with
| Ok edn ->
let edn =
Option.fold ~none:edn
~some:(!Smart_git.Endpoint.with_headers_if_http edn)
headers
in
Firebug.console##log
(Js.string "Nav.S.remote() = (ctx, edn) \n");
(ctx, edn)
| Error (`Msg err) -> Fmt.invalid_arg "remote: %s" err)
module Backend = struct
include Backend
module R = Remote
module Remote = struct
include R
type endpoint = Mimic.ctx * Smart_git.Endpoint.t
let ctx e = fst e
let edn e = snd e
let fetch t ?depth endpoint branch =
Firebug.console##log
(Js.string "S.Backend.Remote.wrapped_fetch()\n");
R.fetch t ?depth endpoint branch
end
end
end
module Sync = Irmin.Sync.Make (S)
type t = S.tree
type tree = t
type step = S.step
type path = step list
let init () = S.Repo.v (Irmin_mem.config ()) >>= S.main >>= S.tree
let test_populate () : t Lwt.t =
let add p s t = S.Tree.add t p s in
add [ "hello" ] "world" (S.Tree.empty ())
>>= add [ "hello"; "daddy" ] "ily"
>>= add [ "beep"; "beep" ] "motherfucker"
let test_pull () : t Lwt.t =
(* test_populate ()*)
Firebug.console##log (Js.string "Nav.test_pull()\n");
S.Repo.v (Config.init "") >>= fun repo ->
Firebug.console##log (Js.string "Nav.test_pull(2)\n");
S.of_branch repo "current" >>= fun t ->
Firebug.console##log (Js.string "Nav.test_pull(3)\n");
Git_console_http.connect Mimic.empty >>= fun ctx ->
Firebug.console##log (Js.string "Nav.test_pull(4)\n");
let upstream =
S.remote ~ctx
~headers:
[
( "Authorization",
"Basic \
Y3FjOmQ5YzJiNDkxZTcwZTMxYTc2MGNlNzBiYzQzMTAzNmM5MTMyNWY2ODM="
);
]
"http://localhost:8080/console/rootstore.git"
in
Firebug.console##log (Js.string "Nav.test_pull(5)\n");
Sync.pull_exn t upstream `Set >>= fun _ ->
Firebug.console##log (Js.string "Nav.test_pull(6)\n");
S.tree t
(* irmin/src/irmin/sync.ml: calls S.Remote.Backend.fetch *)