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ec.ml
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ec.ml
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(* -------------------------------------------------------------------- *)
open EcLib
open EcUtils
open EcOptions
module EP = EcParsetree
module T = EcTerminal
(* -------------------------------------------------------------------- *)
let copyright =
let sentences =
List.flatten
[EcVersion.copyright;
String.split_lines EcVersion.License.engine;
["Standard Library (theories/**/*.ec): "];
List.map (Printf.sprintf "\t%s")
(String.split_lines EcVersion.License.stdlib);
[""; Format.sprintf "GIT hash: %s" EcVersion.hash] ]
in
String.concat "\n"
(List.map
(fun s -> Printf.sprintf ">> %s" s)
sentences)
(* -------------------------------------------------------------------- *)
let psep = match Sys.os_type with "Win32" -> ";" | _ -> ":"
(* -------------------------------------------------------------------- *)
let confname = "easycrypt.conf"
let projname = "easycrypt.project"
let why3dflconf = Filename.concat XDG.home "why3.conf"
(* -------------------------------------------------------------------- *)
type pconfig = {
pc_why3 : string option;
pc_ini : string option;
pc_loadpath : (EcLoader.namespace option * string) list;
}
let print_config config =
let (module Sites) = EcRelocate.sites in
(* Print git-hash *)
Format.eprintf "git-hash: %s@\n%!" EcVersion.hash;
(* Print load path *)
begin
let string_of_namespace = function
| None -> "<none>"
| Some `System -> "<system>"
| Some (`Named x) -> x in
Format.eprintf "load-path:@\n%!";
List.iter
(fun (nm, dir) ->
Format.eprintf " %s@@%s@\n%!" (string_of_namespace nm) dir)
(EcCommands.loadpath ());
end;
(* Print why3 configuration file location *)
Format.eprintf "why3 configuration file@\n%!";
begin match config.pc_why3 with
| None -> Format.eprintf " <why3 default>@\n%!"
| Some f -> Format.eprintf " %s@\n%!" f end;
(* Print EC configuration file location *)
Format.eprintf "EasyCrypt configuration file@\n%!";
begin match config.pc_ini with
| None -> Format.eprintf " <none>@\n%!"
| Some f -> Format.eprintf " %s@\n%!" f end;
(* Print list of known provers *)
begin
let string_of_prover prover =
let fullname =
Printf.sprintf "%s@%s"
prover.EcProvers.pr_name
(EcProvers.Version.to_string prover.EcProvers.pr_version) in
match prover.EcProvers.pr_evicted with
| None -> fullname
| Some (cause, overridden) ->
let cause =
match cause with
| `Inconsistent -> "inconsistent"
in
Printf.sprintf
"%s [evicted:%s/overridden=%b]"
fullname cause overridden
in
let provers = EcProvers.known ~evicted:true in
Format.eprintf "known provers: %s@\n%!"
(String.concat ", " (List.map string_of_prover provers))
end;
(* Command path *)
Format.eprintf "Commands PATH: %s@\n%!" Sites.commands;
(* Print system PATH *)
Format.eprintf "System PATH:@\n%!";
List.iter
(fun x -> Format.eprintf " %s@\n%!" x)
(EcRegexp.split0 (`S (EcRegexp.quote psep))
(try Sys.getenv "PATH" with Not_found -> ""))
(* -------------------------------------------------------------------- *)
let main () =
(* When started from Emacs28 on Apple M1, the set of blocks signals *
* disallows Why3 server to detect external provers completion *)
let _ : int list = Unix.sigprocmask Unix.SIG_SETMASK [] in
let (module Sites) = EcRelocate.sites in
(* Parse command line arguments *)
let conffile, options =
let conffile =
let xdgini =
XDG.Config.file
~exists:true ~mode:`All ~appname:EcVersion.app
confname in
let localini =
Option.bind
EcRelocate.sourceroot
(fun src ->
let conffile = List.fold_left Filename.concat src ["etc"; confname] in
if Sys.file_exists conffile then Some conffile else None) in
List.Exceptionless.hd (Option.to_list localini @ xdgini) in
let projfile (path : string option) =
let rec find (path : string) : string option =
let projfile = Filename.concat path projname in
if Sys.file_exists projfile then
Some projfile
else
if Filename.dirname path = path then
None
else
find (Filename.dirname path)
in
let root =
match path with
| Some path ->
Filename.dirname path
| None ->
Unix.getcwd () in
let root =
if Filename.is_relative root
then Filename.concat (Unix.getcwd ()) root
else root in
find root in
let read_ini_file ini =
try Some (EcOptions.read_ini_file ini)
with
| Sys_error _ -> None
| EcOptions.InvalidIniFile (lineno, file) ->
Format.eprintf "%s:%l: cannot read INI file@." file lineno;
exit 1
in
let getini (path : string option) =
let inisys =
Option.bind conffile (fun conffile ->
Option.map
(fun ini -> { inic_ini = ini; inic_root = None; })
(read_ini_file conffile)
)
in
let iniproj =
Option.bind (projfile path) (fun conffile ->
Option.map
(fun ini -> {
inic_ini = ini;
inic_root = Some (Filename.dirname conffile);
})
(read_ini_file conffile)
)
in
List.filter_map identity [iniproj; inisys] in
(conffile, EcOptions.parse_cmdline ~ini:getini Sys.argv) in
(* Execution of eager commands *)
begin
match options.o_command with
| `Runtest input -> begin
let root =
match EcRelocate.sourceroot with
| Some root ->
List.fold_left Filename.concat root ["scripts"; "testing"]
| None ->
Sites.commands in
let cmd = Filename.concat root "runtest" in
let ecargs =
let maxjobs =
input.runo_provers.prvo_maxjobs
|> omap (fun i -> ["-max-provers"; string_of_int i])
|> odfl [] in
let timeout =
input.runo_provers.prvo_timeout
|> omap (fun i -> ["-timeout"; string_of_int i])
|> odfl [] in
let cpufactor =
input.runo_provers.prvo_cpufactor
|> omap (fun i -> ["-cpu-factor"; string_of_int i])
|> odfl [] in
let ppwidth =
input.runo_provers.prvo_ppwidth
|> omap (fun i -> ["-pp-width"; string_of_int i])
|> odfl [] in
let provers =
odfl [] input.runo_provers.prvo_provers
|> List.map (fun prover -> ["-p"; prover])
|> List.flatten in
let pragmas =
input.runo_provers.prvo_pragmas
|> List.map (fun pragmas -> ["-pragmas"; pragmas])
|> List.flatten in
let checkall =
if input.runo_provers.prvo_checkall then
["-check-all"]
else [] in
let profile =
if input.runo_provers.prvo_profile then
["-profile"]
else [] in
let iterate =
if input.runo_provers.prvo_iterate then
["-iterate"]
else [] in
let why3srv =
input.runo_provers.prvo_why3server
|> omap (fun server -> ["-server"; server])
|> odfl [] in
let why3 =
options.o_options.o_why3
|> omap (fun why3 -> ["-why3"; why3])
|> odfl [] in
let reloc =
if options.o_options.o_reloc then
["-reloc"]
else [] in
let noevict =
options.o_options.o_ovrevict
|> List.map (fun p -> ["-no-evict"; p])
|> List.flatten in
let boot =
if options.o_options.o_loader.ldro_boot then
["-boot"]
else [] in
let idirs =
options.o_options.o_loader.ldro_idirs
|> List.map (fun (pfx, name, rec_) ->
let pfx = odfl "" (omap (fun pfx -> pfx ^ ":") pfx) in
let opt = if rec_ then "-R" else "-I" in
[opt; pfx ^ name])
|> List.flatten in
List.flatten [
maxjobs; timeout; cpufactor; ppwidth;
provers; pragmas; checkall ; profile;
iterate; why3srv; why3 ; reloc ;
noevict; boot ; idirs ;
]
in
let args =
[
"runtest";
Format.sprintf "--bin=%s" Sys.executable_name;
]
@ Option.to_list (
Option.map
(Format.sprintf "--report=%s")
input.runo_report
)
@ List.map (Format.sprintf "--bin-args=%s") ecargs
@ [input.runo_input]
@ input.runo_scenarios
in
Format.eprintf "Executing: %s@." (String.concat " " (cmd :: args));
Unix.execv cmd (Array.of_list args)
end
| _ -> ()
end;
(* chrdir_$PATH if in reloc mode (FIXME / HACK) *)
let relocdir =
match options.o_options.o_reloc with
| true when Option.is_none EcRelocate.sourceroot ->
let pwd = Sys.getcwd () in
Sys.chdir (
List.fold_left Filename.concat
(List.hd Sites.theories)
(List.init 3 (fun _ -> ".."))
); Some pwd
| true ->
Format.eprintf "cannot relocate a local installation@.";
exit 1
| false ->
None
in
(* Initialize why3 engine *)
let cp_why3conf ~exists ~mode : string option =
match options.o_options.o_why3 with
| None ->
let confs =
XDG.Config.file
~exists ~mode ~appname:EcVersion.app "why3.conf"
in List.nth_opt confs 0
| Some _ as aout -> aout in
let why3conf = cp_why3conf ~exists:true ~mode:`All
and ovrevict = options.o_options.o_ovrevict in
if options.o_command <> `Why3Config then begin
try
EcProvers.initialize ~ovrevict ?why3conf ()
with e ->
Format.eprintf
"cannot initialize Why3 engine: %a@."
EcPException.exn_printer e;
exit 1
end;
(* Initialize load path *)
let ldropts = options.o_options.o_loader in
begin
List.iter (fun theory ->
EcCommands.addidir ~namespace:`System (Filename.concat theory "prelude");
if not ldropts.ldro_boot then
EcCommands.addidir ~namespace:`System ~recursive:true theory
) Sites.theories;
List.iter (fun (onm, name, isrec) ->
EcCommands.addidir
?namespace:(omap (fun nm -> `Named nm) onm)
~recursive:isrec name)
ldropts.ldro_idirs;
end;
(* Initialize printer *)
EcCorePrinting.Registry.register (module EcPrinting);
(* Register user messages printers *)
begin let open EcUserMessages in register () end;
(* Initialize I/O + interaction module *)
let (prvopts, input, terminal, interactive, eco) =
match options.o_command with
| `Config ->
let config = {
pc_why3 = why3conf;
pc_ini = conffile;
pc_loadpath = EcCommands.loadpath ();
} in
print_config config; exit 0
| `Why3Config -> begin
let conf = cp_why3conf ~exists:false ~mode:`User in
conf |> Option.iter (fun conf ->
EcUtils.makedirs (Filename.dirname conf));
let () =
let ulnk = conf |> odfl why3dflconf in
try Unix.unlink ulnk with Unix.Unix_error _ -> ()
in
let pid =
let args = ["why3"; "config"; "detect"] in
let args = args @ (conf |> omap (fun x -> ["-C"; x])|> odfl []) in
Printf.eprintf "Executing: %s\n%!" (String.concat " " args);
Unix.create_process "why3" (Array.of_list args)
Unix.stdin Unix.stdout Unix.stderr
in
let code =
match snd (Unix.waitpid [] pid) with
| WSIGNALED _ -> 127
| WEXITED e -> e
| WSTOPPED _ -> assert false in exit code
end
| `Cli cliopts -> begin
let terminal =
if cliopts.clio_emacs
then lazy (T.from_emacs ())
else lazy (T.from_tty ())
in (cliopts.clio_provers, None, terminal, true, false)
end
| `Compile cmpopts -> begin
let name = cmpopts.cmpo_input in
begin try
let ext = Filename.extension name in
ignore (EcLoader.getkind ext : EcLoader.kind)
with EcLoader.BadExtension ext ->
Format.eprintf "do not know what to do with %s@." ext;
exit 1
end;
let gcstats = cmpopts.cmpo_gcstats in
let progress = if cmpopts.cmpo_script then `Script else `Human in
let terminal =
lazy (T.from_channel ~name ~gcstats ~progress (open_in name))
in
({cmpopts.cmpo_provers with prvo_iterate = true},
Some name, terminal, false, cmpopts.cmpo_noeco)
end
| `Runtest _ ->
(* Eagerly executed *)
assert false
in
(match input with
| Some input -> EcCommands.addidir (Filename.dirname input)
| None ->
match relocdir with
| None -> EcCommands.addidir Filename.current_dir_name
| Some pwd -> EcCommands.addidir pwd);
(* Check if the .eco is up-to-date and exit if so *)
oiter
(fun input -> if EcCommands.check_eco input then exit 0)
input;
let finalize_input input scope =
match input with
| Some input ->
let nameo = EcEco.get_eco_filename input in
let kind =
try EcLoader.getkind (Filename.extension input)
with EcLoader.BadExtension _ -> assert false in
assert (nameo <> input);
let eco = EcEco.{
eco_root = EcEco.{
eco_digest = Digest.file input;
eco_kind = kind;
};
eco_depends = EcMaps.Mstr.of_list (
List.map
(fun (x : EcScope.required_info) ->
let ecr = EcEco.{
eco_digest = x.rqd_digest;
eco_kind = x.rqd_kind;
} in (x.rqd_name, (ecr, x.rqd_direct)))
(EcScope.Theory.required scope));
} in
let out = open_out nameo in
EcUtils.try_finally
(fun () ->
Format.fprintf
(Format.formatter_of_out_channel out) "%a@."
EcEco.pp eco)
(fun () -> close_out out)
| None -> ()
in
let tstats : EcLocation.t -> float option -> unit =
match options.o_command with
| `Compile { cmpo_tstats = Some out } ->
let channel = Format.formatter_of_out_channel (open_out out) in
let fmt loc tdelta =
Format.fprintf channel "%s %f\n%!"
(EcLocation.tostring_raw ~with_fname:false loc) tdelta in
fun loc tdelta -> oiter (fmt loc) tdelta
| _ -> fun _ _ -> () in
(* Instantiate terminal *)
let lazy terminal = terminal in
(* Initialize PRNG *)
Random.self_init ();
(* Connect to external Why3 server if requested *)
prvopts.prvo_why3server |> oiter (fun server ->
try
Why3.Prove_client.connect_external server
with Why3.Prove_client.ConnectionError e ->
Format.eprintf "cannot connect to Why3 server `%s': %s" server e;
exit 1);
(* Display Copyright *)
if T.interactive terminal then
T.notice ~immediate:true `Warning copyright terminal;
try
if T.interactive terminal then Sys.catch_break true;
(* Interaction loop *)
let first = ref `Init in
while true do
let terminate = ref false in
try
begin match !first with
| `Init | `Restart ->
let restart = (!first = `Restart) in
(* Initialize global scope *)
let checkmode = {
EcCommands.cm_checkall = prvopts.prvo_checkall;
EcCommands.cm_timeout = odfl 3 (prvopts.prvo_timeout);
EcCommands.cm_cpufactor = odfl 1 (prvopts.prvo_cpufactor);
EcCommands.cm_nprovers = odfl 4 (prvopts.prvo_maxjobs);
EcCommands.cm_provers = prvopts.prvo_provers;
EcCommands.cm_profile = prvopts.prvo_profile;
EcCommands.cm_iterate = prvopts.prvo_iterate;
} in
EcCommands.initialize ~restart
~undo:interactive ~boot:ldropts.ldro_boot ~checkmode;
(try
List.iter EcCommands.apply_pragma prvopts.prvo_pragmas
with EcCommands.InvalidPragma x ->
EcScope.hierror "invalid pragma: `%s'\n%!" x);
let notifier (lvl : EcGState.loglevel) (lazy msg) =
T.notice ~immediate:true lvl msg terminal
in
EcCommands.addnotifier notifier;
oiter (fun ppwidth ->
let gs = EcEnv.gstate (EcScope.env (EcCommands.current ())) in
EcGState.setvalue "PP:width" (`Int ppwidth) gs)
prvopts.prvo_ppwidth;
first := `Loop
| `Loop -> ()
end;
oiter (T.setwidth terminal)
(let gs = EcEnv.gstate (EcScope.env (EcCommands.current ())) in
match EcGState.getvalue "PP:width" gs with
| Some (`Int i) -> Some i | _ -> None);
begin
match EcLocation.unloc (T.next terminal) with
| EP.P_Prog (commands, locterm) ->
terminate := locterm;
List.iter
(fun p ->
let loc = p.EP.gl_action.EcLocation.pl_loc in
let timed = p.EP.gl_debug = Some `Timed in
let break = p.EP.gl_debug = Some `Break in
let ignore_fail = ref false in
try
let tdelta = EcCommands.process ~timed ~break p.EP.gl_action in
if p.EP.gl_fail then begin
ignore_fail := true;
raise (EcScope.HiScopeError (None, "this command is expected to fail"))
end;
tstats loc tdelta
with
| EcCommands.Restart ->
raise EcCommands.Restart
| e -> begin
if !ignore_fail || not p.EP.gl_fail then begin
if Printexc.backtrace_status () then begin
if not (T.interactive terminal) then
Printf.fprintf stderr "%t\n%!" Printexc.print_backtrace
end;
raise (EcScope.toperror_of_exn ~gloc:loc e)
end;
if T.interactive terminal then begin
let error =
Format.asprintf
"The following error has been ignored:@.@.@%a"
EcPException.exn_printer e in
T.notice ~immediate:true `Info error terminal
end
end)
commands
| EP.P_Undo i ->
EcCommands.undo i
| EP.P_Exit ->
terminate := true
end;
T.finish `ST_Ok terminal;
if !terminate then begin
T.finalize terminal;
if not eco then
finalize_input input (EcCommands.current ());
exit 0
end;
with
| EcCommands.Restart ->
first := `Restart
| e -> begin
T.finish
(`ST_Failure (EcScope.toperror_of_exn e))
terminal;
if (!first = `Init) || not (T.interactive terminal) then
exit 1
end
done
with e ->
(try T.finalize terminal with _ -> ());
raise e
(* -------------------------------------------------------------------- *)
let () = main ()