X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=src%2Fcmdline.ml;h=0ac1ad59936f0b70b548a0973c393922601a2c37;hb=ca19d10dfd7e3e3c690f5d618d5fc24a0d14accc;hp=fdf7ce6341fc3e9b7d03176f51a14d8097b656a5;hpb=aadcfa31f19559b2a8a355736e3dfc4795e0a2d9;p=goals.git

diff --git a/src/cmdline.ml b/src/cmdline.ml
index fdf7ce6..0ac1ad5 100644
--- a/src/cmdline.ml
+++ b/src/cmdline.ml
@@ -45,20 +45,19 @@ let datadir =
 let stdlibdir = datadir // "stdlib"
 let prelude_gl_file = stdlibdir // "prelude.gl"
 let prelude_sh_file = stdlibdir // "prelude.sh"
-let () =
+
+let debug_flag = ref false
+let directory = ref "."
+let input_file = ref "Goalfile"
+let includes = ref [stdlibdir]
+let add_include dir = includes := dir :: !includes
+let nr_jobs = ref 4 (* XXX use nproc *)
+let use_prelude = ref true
+
+let parse () =
   if not (is_directory stdlibdir) || not (Sys.file_exists prelude_gl_file) then
     failwithf "%s: cannot find the standard library directory, expected %s.  If the standard library directory is in a non-standard location then set GOALS_DATADIR.  If you can trying to run goals from the build directory then use ‘./run goals ...’"
-      Sys.executable_name stdlibdir
-
-let input_file,
-    debug_flag, directory, includes, use_prelude, anon_vars, targets =
-  let args = ref [] in
-  let debug_flag = ref false in
-  let directory = ref "." in
-  let input_file = ref "Goalfile" in
-  let includes = ref [stdlibdir] in
-  let add_include dir = includes := dir :: !includes in
-  let use_prelude = ref true in
+      Sys.executable_name stdlibdir;
 
   let argspec = [
     "-C",          Arg.Set_string directory,
@@ -75,6 +74,10 @@ let input_file,
                    "dir Add include directory";
     "--include",   Arg.String add_include,
                    "dir Add include directory";
+    "-j",          Arg.Set_int nr_jobs,
+                   "jobs Set number of parallel jobs";
+    "--jobs",      Arg.Set_int nr_jobs,
+                   "jobs Set number of parallel jobs";
     "--no-prelude",Arg.Clear use_prelude,
                    " Do not automatically use prelude.gl from stdlib";
     "-v",          Arg.Unit print_version,
@@ -83,16 +86,15 @@ let input_file,
                    " Print version and exit";
   ] 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;
 
+  (* Check various params are sensible. *)
+  if !nr_jobs < 1 then
+    failwithf "%s: -j must be >= 1" Sys.executable_name;
+
   let args = List.rev !args in
-  let debug_flag = !debug_flag in
-  let directory = !directory in
-  let input_file = !input_file in
-  (* Don't reverse includes - we want newer -I options to take precedence. *)
-  let includes = !includes in
-  let use_prelude = !use_prelude in
 
   (* Get the anon var assignments and targets. *)
   let anon_vars, targets =
@@ -108,10 +110,20 @@ let input_file,
         (name, expr)
     ) anon_vars in
 
-  input_file,
-  debug_flag, directory, includes, use_prelude, anon_vars, targets
+  anon_vars, targets
+
+let debug_flag () = !debug_flag
 
 (* Create the debug function. *)
 let debug fs =
-  let display str = if debug_flag then prerr_endline str in
+  let display str = if debug_flag () then prerr_endline str in
   ksprintf display fs
+
+let directory () = !directory
+let input_file () = !input_file
+
+(* Don't reverse includes - we want newer -I options to take precedence. *)
+let includes () = !includes
+
+let nr_jobs () = !nr_jobs
+let use_prelude () = !use_prelude