lib/scripts/run-poplogml

Poplog/PML startup script.

#!/usr/bin/env bash
#
# $Id$
# Author: Makarius
#
# Poplog/PML startup script (version 15.6/2.1).

export -n INFILE OUTFILE COPYDB COMPRESS MLTEXT TERMINATE NOWRITE


## diagnostics

function fail_out()
{
  echo "Unable to create output heap file: \"$OUTFILE\"" >&2
  exit 2
}

function check_mlhome_file()
{
  if [ ! -f "$1" ]; then
    echo "Unable to locate $1" >&2
    echo "Please check your ML_HOME setting!" >&2
    exit 2
  fi
}

function check_heap_file()
{
  if [ ! -f "$1" ]; then
    echo "Expected to find ML heap file $1" >&2
    return 1
  else
    return 0
  fi
}


## prepare databases

if [ -z "$INFILE" ]; then
  EXIT="fun exit (i: int) = OS.execve \"/bin/sh\" [\"sh\", \"-c\", \"exit \" ^ makestring i] (OS.envlist());"
  DB=""
else
  EXIT=""
  DB="+$INFILE"
fi

if [ -z "$OUTFILE" ]; then
  COMMIT='fun commit () = (StdIO.output (StdIO.std_err, "Error - Database is not opened for writing.\n"); false);'
else
  if [ -z "$NOWRITE" ]; then
    COMMIT="fun commit () = if System.make {image =\"$OUTFILE\", lock = false, share = false, banner = false, init = false} then System.restart() else true;"
  else
    COMMIT="fun commit () = if System.make {image =\"$OUTFILE\", lock = true, share = true, banner = false, init = false} then System.restart() else true;"
  fi
  [ -f "${OUTFILE}.psv" ] && { chmod +w "${OUTFILE}.psv" || fail_out; }
fi


## run it!

POPLOG="$ML_HOME/poplog"
check_mlhome_file "$POPLOG"

MLTEXT="val use = Compile.use; $EXIT $COMMIT $MLTEXT"
MLEXIT="commit();"

if [ -z "$TERMINATE" ]; then
  FEEDER_OPTS=""
else
  FEEDER_OPTS="-q"
fi

"$ISABELLE_HOME/lib/scripts/feeder" -p -h "$MLTEXT" -t "$MLEXIT" $FEEDER_OPTS | \
  { read FPID; "$POPLOG" pml "$DB" $ML_OPTIONS; RC="$?"; kill -HUP "$FPID"; exit "$RC"; }
RC="$?"


## fix heap file name and permissions

if [ -n "$OUTFILE" ]; then
  check_heap_file "${OUTFILE}.psv" && \
    [ -n "$NOWRITE" ] && chmod -w "${OUTFILE}.psv"
fi

exit "$RC"