/* Title: Pure/System/ml_process.scala
Author: Makarius
The underlying ML process.
*/
package isabelle
import java.io.{File => JFile}
object ML_Process
{
def apply(options: Options,
heap: String = "",
args: List[String] = Nil,
modes: List[String] = Nil,
secure: Boolean = false,
cwd: JFile = null,
env: Map[String, String] = Map.empty,
redirect: Boolean = false,
channel: Option[System_Channel] = None): Bash.Process =
{
val load_heaps =
{
if (heap == "RAW_ML_SYSTEM") Nil
else if (heap.iterator.contains('/')) {
val heap_path = Path.explode(heap)
if (!heap_path.is_file) error("Bad heap file: " + heap_path)
List(heap_path)
}
else {
val dirs = Isabelle_System.find_logics_dirs()
val heap_name = if (heap == "") Isabelle_System.getenv_strict("ISABELLE_LOGIC") else heap
dirs.map(_ + Path.basic(heap_name)).find(_.is_file) match {
case Some(heap_path) => List(heap_path)
case None =>
error("Unknown logic " + quote(heap) + " -- no heap file found in:\n" +
cat_lines(dirs.map(dir => " " + dir.implode)))
}
}
}
val eval_heaps =
load_heaps.map(load_heap =>
"(PolyML.SaveState.loadState " + ML_Syntax.print_string_raw(File.platform_path(load_heap)) +
"; PolyML.print_depth 0) handle exn => (TextIO.output (TextIO.stdErr, General.exnMessage exn ^ " +
ML_Syntax.print_string_raw(": " + load_heap.toString + "\n") +
"); OS.Process.exit OS.Process.failure)")
val eval_initial =
if (load_heaps.isEmpty) {
List(
if (Platform.is_windows)
"fun exit 0 = OS.Process.exit OS.Process.success" +
" | exit 1 = OS.Process.exit OS.Process.failure" +
" | exit rc = OS.Process.exit (RunCall.unsafeCast (Word8.fromInt rc))"
else
"fun exit rc = Posix.Process.exit (Word8.fromInt rc)",
"PolyML.Compiler.prompt1 := \"ML> \"",
"PolyML.Compiler.prompt2 := \"ML# \"")
}
else Nil
val eval_modes =
if (modes.isEmpty) Nil
else List("Print_Mode.add_modes " + ML_Syntax.print_list(ML_Syntax.print_string_raw _)(modes))
// options
val isabelle_process_options = Isabelle_System.tmp_file("options")
File.write(isabelle_process_options, YXML.string_of_body(options.encode))
val env_options = Map("ISABELLE_PROCESS_OPTIONS" -> File.standard_path(isabelle_process_options))
val eval_options = if (load_heaps.isEmpty) Nil else List("Options.load_default ()")
val eval_secure = if (secure) List("Secure.set_secure ()") else Nil
val eval_process =
if (load_heaps.isEmpty)
List("PolyML.print_depth 10")
else
channel match {
case None =>
List("(default_print_depth 10; Isabelle_Process.init_options ())")
case Some(ch) =>
List("(default_print_depth 10; Isabelle_Process.init_protocol " +
ML_Syntax.print_string_raw(ch.server_name) + ")")
}
// bash
val bash_args =
Word.explode(Isabelle_System.getenv("ML_OPTIONS")) :::
(eval_heaps ::: eval_initial ::: eval_modes ::: eval_options ::: eval_secure ::: eval_process).
map(eval => List("--eval", eval)).flatten ::: args
Bash.process(
"""
[ -z "$ISABELLE_TMP_PREFIX" ] && ISABELLE_TMP_PREFIX=/tmp/isabelle
export ISABELLE_PID="$$"
export ISABELLE_TMP="$ISABELLE_TMP_PREFIX$ISABELLE_PID"
mkdir -p "$ISABELLE_TMP"
chmod $(umask -S) "$ISABELLE_TMP"
librarypath "$ML_HOME"
"$ML_HOME/poly" -q """ + File.bash_args(bash_args) + """
RC="$?"
rm -f "$ISABELLE_PROCESS_OPTIONS"
rmdir "$ISABELLE_TMP"
exit "$RC"
""", cwd = cwd, env = env ++ env_options, redirect = redirect)
}
}