1 #!/usr/bin/env bash |
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2 # |
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3 # $Id$ |
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4 # Author: Markus Wenzel, TU Muenchen |
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5 # License: GPL (GNU GENERAL PUBLIC LICENSE) |
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6 # |
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7 # SML/NJ startup script (for 0.93). |
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8 |
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9 export -n INFILE OUTFILE COPYDB COMPRESS MLTEXT TERMINATE NOWRITE |
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10 |
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11 |
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12 ## diagnostics |
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13 |
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14 function fail_out() |
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15 { |
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16 echo "Unable to create output heap file: \"$OUTFILE\"" >&2 |
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17 exit 2 |
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18 } |
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19 |
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20 function check_mlhome_file() |
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21 { |
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22 if [ ! -f "$1" ]; then |
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23 echo "Unable to locate $1" >&2 |
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24 echo "Please check your ML_HOME setting!" >&2 |
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25 exit 2 |
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26 fi |
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27 } |
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28 |
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29 |
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30 ## prepare databases |
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31 |
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32 if [ -z "$INFILE" ]; then |
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33 INFILE="$ML_HOME/sml" |
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34 check_mlhome_file "$INFILE" |
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35 EXIT="val exit: int -> unit = System.Unsafe.CInterface.exit;" |
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36 else |
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37 EXIT="" |
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38 fi |
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39 |
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40 MOVE="" |
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41 |
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42 if [ -z "$OUTFILE" ]; then |
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43 COMMIT='fun commit () = (output (std_err, "Error - Database is not opened for writing.\n"); false);' |
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44 else |
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45 if [ "$INFILE" -ef "$OUTFILE" ]; then |
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46 OUTDIR=$(dirname "$OUTFILE")/tmp |
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47 OUTFILE="$OUTDIR"/$(basename "$OUTFILE") |
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48 mkdir -p "$OUTDIR" || fail_out |
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49 MOVE=true |
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50 fi |
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51 [ -f "$OUTFILE" ] && { chmod +w "$OUTFILE" || fail_out; } |
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52 COMMIT="fun commit () = not (exportML\"$OUTFILE\");" |
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53 fi |
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54 |
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55 |
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56 ## run it! |
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57 |
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58 MLTEXT="$EXIT $COMMIT $MLTEXT" |
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59 MLEXIT="commit();" |
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60 |
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61 if [ -z "$TERMINATE" ]; then |
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62 FEEDER_OPTS="" |
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63 else |
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64 FEEDER_OPTS="-q" |
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65 fi |
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66 |
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67 "$ISABELLE_HOME/lib/scripts/feeder" -p -h "$MLTEXT" -t "$MLEXIT" $FEEDER_OPTS | \ |
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68 { read FPID; "$INFILE" $ML_OPTIONS; RC="$?"; kill -HUP "$FPID"; exit "$RC"; } |
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69 RC="$?" |
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70 |
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71 |
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72 ## fix heap file |
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73 |
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74 [ -n "$OUTFILE" -a -f "$OUTFILE" -a -n "$NOWRITE" ] && chmod -w "$OUTFILE" |
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75 |
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76 if [ -n "$MOVE" -a -f "$OUTFILE" ]; then |
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77 rm -f "$INFILE" || fail_out |
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78 mv "$OUTFILE" "$INFILE" || fail_out |
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79 fi |
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80 |
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81 exit "$RC" |
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