open Utils
-let usage =
- "\
-goals: Build software.
+(* See comment in parser.mly. *)
+let () =
+ Parser.lexer_read := Some Lexer.read;
+ Parser.eval_substitute := Some Eval.substitute
- goals [-f Goalfile] ['var = value' ...] ['target' ...]
+let main () =
+ (* Handle the command line. *)
+ let anon_vars, targets = Cmdline.parse () in
-For detailed help see goals(1).
+ (* Change directory (-C option). *)
+ Sys.chdir (Cmdline.directory ());
-Options:"
+ (* Create a temporary directory which is always cleaned up at exit. *)
+ let tmpdir =
+ let temp_dir = try Unix.getenv "TMPDIR" with Not_found -> "/var/tmp" in
+ let t = Filename.temp_file ~temp_dir "goals" ".d" in
+ Unix.unlink t;
+ Unix.mkdir t 0o700;
+ at_exit (
+ fun () ->
+ let cmd = sprintf "rm -rf %s" (Filename.quote t) in
+ ignore (Sys.command cmd)
+ );
+ t in
-let main () =
- (* Command line arguments. *)
- let filename = ref "Goalfile" in
-
- let argspec = [
- "-f", Arg.Set_string filename,
- "filename Set name of Goalfile";
- "--file", Arg.Set_string filename,
- "filename Set name of Goalfile";
- ] in
- let argspec = Arg.align argspec in
- let args = ref [] in
- let anon_fun s = args := s :: !args in
- Arg.parse argspec anon_fun usage;
-
- (*let args = List.rev !args in*)
- let filename = !filename in
+ (* Create the initial environment, containing the system environment
+ * and a few other standard strings.
+ *)
+ let env =
+ Array.fold_left (
+ fun env environ ->
+ let k, v = split "=" environ in
+ Ast.Env.add k (Ast.EConstant (Ast.noloc, Ast.CString v)) env
+ ) Ast.Env.empty (Unix.environment ()) in
+ let env =
+ Ast.Env.add "tmpdir" (Ast.EConstant (Ast.noloc, Ast.CString tmpdir)) env in
+ let env =
+ Ast.Env.add "stdlib"
+ (Ast.EConstant (Ast.noloc, Ast.CString Cmdline.stdlibdir))
+ env in
+ (*let env =
+ if Cmdline.debug_flag then Ast.Env.add "debug" (Ast.EConstant (noloc, Ast.CBool true)) env else env in *)
+
+ (* Parse the prelude. *)
+ let env =
+ if Cmdline.use_prelude () then
+ Parse.parse_goalfile env Cmdline.prelude_gl_file
+ else env in
(* Parse the input file. *)
- let file = Parse.parse_goalfile filename in
+ let env = Parse.parse_goalfile env (Cmdline.input_file ()) in
- Ast.print_file stdout file;
+ (* Parse the command line assignments. *)
+ let env =
+ List.fold_left (
+ fun env (name, expr) ->
+ let expr = Parse.parse_expr "commandline" expr in
+ Ast.Env.add name expr env
+ ) env anon_vars in
- (* Find the target(s) to execute first. *)
- let initial_targets = ref [] in
- (* XXX Parse command line anon args here. XXX *)
+ (* Parse the target expressions. *)
+ let targets = List.map (Parse.parse_expr "commandline") targets in
- (* If no initial target set on the command line, find
- * the first goal in the file.
- *)
- List.iter (
- function
- | Ast.Goal (name, [], _, _, _) ->
- if !initial_targets = [] then
- initial_targets := Ast.ECall (name, []) :: !initial_targets
- | Ast.Goal (name, _, _, _, _) ->
- if !initial_targets = [] then
- failwithf "%s: first target ā%sā has parameters and so cannot be used as the default target"
- filename name
- | _ -> ()
- ) file;
-
- let initial_targets = List.rev !initial_targets in
- ignore initial_targets
-
-let () = main ()
+ (* If no target was set on the command line, use "all ()". *)
+ let targets =
+ if targets <> [] then targets
+ else [Ast.ECall (Ast.noloc, "all", [])] in
+
+ if Cmdline.debug_flag () then
+ Ast.print_env stderr env;
+
+ (* Construct the dependency DAG with the root(s) being the targets. *)
+ let dag = Deps.create env targets in
+
+ (* Run the jobs. *)
+ let state = Deps.new_state dag Run.goal_runner Run.exists_runner in
+ let next_job () = Deps.next_job state in
+ let retire_job job = Deps.retire_job state job in
+ let fail_job job = Deps.fail_job state job in
+ let string_of_job job = Deps.string_of_job job in
+ Jobs.run next_job retire_job fail_job string_of_job
+
+let () =
+ try main ()
+ with
+ | Failure msg | Sys_error msg ->
+ prerr_endline ("*** error: " ^ msg);
+ exit 1