X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=src%2Fmain.ml;h=ba4a1958d4743ce34b97a58157897fd044707167;hb=54c8ad92025a9c77c2b10644499b3944e1299187;hp=be1baff0728299e64f0c832a0b95114485300946;hpb=8e1d9182f7573112cb36c7d0ff0c8612f34ffd57;p=goals.git diff --git a/src/main.ml b/src/main.ml index be1baff..ba4a195 100644 --- a/src/main.ml +++ b/src/main.ml @@ -21,59 +21,75 @@ open Printf 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 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 "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 *) -let main () = - (* Command line arguments. *) - let filename = ref "Goalfile" in + (* Parse the prelude. *) + let env = + if Cmdline.use_prelude () then + Parse.parse_goalfile env Cmdline.prelude_gl_file + else env 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; + (* Parse the input file. *) + let env = Parse.parse_goalfile env (Cmdline.input_file ()) in - (*let args = List.rev !args in*) - let filename = !filename in + (* 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 - (* Parse the input file. *) - let file = Parse.parse_goalfile filename in + (* Parse the target expressions. *) + let targets = List.map (Parse.parse_expr "commandline") targets in - Ast.print_file stdout file; + (* If no target was set on the command line, use "all ()". *) + let targets = + if targets <> [] then targets + else [Ast.ECall (Ast.noloc, "all", [])] in - (* Find the target(s) to execute first. *) - let initial_targets = ref [] in - (* XXX Parse command line anon args here. XXX *) + if Cmdline.debug_flag () then + Ast.print_env stderr env; - (* 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 ‘%s’ has parameters and so cannot be used as the default target" - filename name - | _ -> () - ) file; + (* Construct the dependency DAG with the root(s) being the targets. *) + let dag = Deps.create env targets in - let initial_targets = List.rev !initial_targets in - ignore initial_targets + (* 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 string_of_job job = Deps.string_of_job job in + Jobs.run next_job retire_job string_of_job -let () = main () +let () = + try main () + with + | Failure msg | Sys_error msg -> + prerr_endline ("*** error: " ^ msg); + exit 1