val fileHandler = ref (fn _ : file_status => ())
val preHandler = ref (fn () => ())
val postHandler = ref (fn () => ())
-
+
fun registerFileHandler handler =
let
val old = !fileHandler
ErrorMsg.error NONE (msg s)
end
+fun run (program, argv) =
+ let
+ val proc = Unix.execute (program, argv)
+
+ fun loop inf =
+ case TextIO.inputLine inf of
+ NONE => ()
+ | SOME line => loop inf
+ (* Programs that output will fail unless we eat their output *)
+ val () = loop (Unix.textInstreamOf proc)
+ in
+ OS.Process.isSuccess (Unix.reap proc)
+ end
+
+
+fun runOutput (program, argv) =
+ let
+ val proc = Unix.execute (program, argv)
+ val inf = Unix.textInstreamOf proc
+
+ fun loop out =
+ case TextIO.inputLine inf of
+ NONE => if (List.length out) > 0 then
+ SOME (String.concat (rev out))
+ else
+ NONE
+ | SOME line => loop (line :: out)
+
+ val lines = loop []
+ in
+ case lines of
+ SOME lines => print lines
+ | NONE => ();
+
+ (OS.Process.isSuccess (Unix.reap proc), lines)
+ end
+
fun shellOutput ss =
let
val proc = Unix.execute ("/bin/bash", ["-c", String.concat ss ^ " 2>&1"])