lib/scripts/run-smlnj
author wenzelm
Mon, 16 Dec 1996 10:29:30 +0100
changeset 2411 256dbda3df4f
parent 2396 721a9e01457b
child 2429 747177b67670
permissions -rwxr-xr-x
SML/NJ startup script (for 0.93).
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#!/bin/bash -norc
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#
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# $Id$
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#
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# SML/NJ startup script (for 1.06 or later).
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#
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# Global vars: INFILE OUTFILE COPYDB MLTEXT TERMINATE,
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# and from settings
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## diagnostics
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function fail_out()
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{
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  echo "Unable to create output heap file: \"$OUTFILE\"" >&2
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  exit 2
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}
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## prepare databases
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EXIT=""
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if [ -z "$INFILE" ]; then
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  case "$ML_SYSTEM" in
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    smlnj-1.0[678])
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      EXIT="val exit = System.Unix.exit;"
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      ;;
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    smlnj-1.09*)
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      EXIT="fun exit 0 = OS.Process.exit OS.Process.success | exit _ = OS.Process.exit OS.Process.failure;"
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    ;;
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  esac
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fi
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DB="$INFILE"
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[ -n "$DB" ] && DB="@SMLload=$INFILE"
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COMMIT="fun commit () = not (exportML\"$OUTFILE\");"
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if [ -z "$OUTFILE" ]; then
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  COMMIT='fun commit () = (output (std_err, "Error - Database is not opened for writing.\n"); false);'
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elif [ -n "$INFILE" -a ! "$INFILE" -ef "$OUTFILE" ]; then
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  [ -f "$OUTFILE" ] && { rm -f "$OUTFILE" || fail_out }
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  cp "$INFILE" "$OUTFILE" || fail_out
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fi
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[ -n "$OUTFILE" ] && { chmod +w "$OUTFILE" || fail_out }
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MLTEXT="$EXIT $COMMIT $MLTEXT"
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MLEXIT="commit();"
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## run it!
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START_SML="$ML_HOME/bin/sml $ML_OPTIONS $DB"
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if [ -n "$TERMINATE" ]; then
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  { echo "$MLTEXT"; echo "$MLEXIT" } | $START_SML
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  RC=$?
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else
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  { echo "$MLTEXT"; $ISABELLE_HOME/lib/scripts/ucat; echo "$MLEXIT" } | $START_SML
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  RC=$?
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fi
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exit $RC