| 1 | #! /bin/sh |
| 2 | # ylwrap - wrapper for lex/yacc invocations. |
| 3 | # Copyright (C) 1996, 1997 Free Software Foundation, Inc. |
| 4 | # Written by Tom Tromey <tromey@cygnus.com>. |
| 5 | # |
| 6 | # This program is free software; you can redistribute it and/or modify |
| 7 | # it under the terms of the GNU General Public License as published by |
| 8 | # the Free Software Foundation; either version 2, or (at your option) |
| 9 | # any later version. |
| 10 | # |
| 11 | # This program is distributed in the hope that it will be useful, |
| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | # GNU General Public License for more details. |
| 15 | # |
| 16 | # You should have received a copy of the GNU General Public License |
| 17 | # along with this program; if not, write to the Free Software |
| 18 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 | |
| 20 | # Usage: |
| 21 | # ylwrap PROGRAM INPUT [OUTPUT DESIRED]... -- [ARGS]... |
| 22 | # * PROGRAM is program to run. |
| 23 | # * INPUT is the input file |
| 24 | # * OUTPUT is file PROG generates |
| 25 | # * DESIRED is file we actually want |
| 26 | # * ARGS are passed to PROG |
| 27 | # Any number of OUTPUT,DESIRED pairs may be used. |
| 28 | |
| 29 | # The program to run. |
| 30 | prog="$1" |
| 31 | shift |
| 32 | # Make any relative path in $prog absolute. |
| 33 | case "$prog" in |
| 34 | /* | [A-Za-z]:\\*) ;; |
| 35 | */*) prog="`pwd`/$prog" ;; |
| 36 | esac |
| 37 | |
| 38 | # The input. |
| 39 | input="$1" |
| 40 | shift |
| 41 | case "$input" in |
| 42 | /* | [A-Za-z]:\\*) |
| 43 | # Absolute path; do nothing. |
| 44 | ;; |
| 45 | *) |
| 46 | # Relative path. Make it absolute. Why? Because otherwise any |
| 47 | # debugging info in the generated file will point to the wrong |
| 48 | # place. This is really gross. |
| 49 | input="`pwd`/$input" |
| 50 | ;; |
| 51 | esac |
| 52 | |
| 53 | # We don't want to use the absolute path if the input in the current |
| 54 | # directory like when making a tar ball. |
| 55 | input_base=`echo $input | sed -e 's|.*/||'` |
| 56 | if test -f $input_base && cmp $input_base $input >/dev/null 2>&1; then |
| 57 | input=$input_base |
| 58 | fi |
| 59 | |
| 60 | pairlist= |
| 61 | while test "$#" -ne 0; do |
| 62 | if test "$1" = "--"; then |
| 63 | shift |
| 64 | break |
| 65 | fi |
| 66 | pairlist="$pairlist $1" |
| 67 | shift |
| 68 | done |
| 69 | |
| 70 | # FIXME: add hostname here for parallel makes that run commands on |
| 71 | # other machines. But that might take us over the 14-char limit. |
| 72 | dirname=ylwrap$$ |
| 73 | trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15 |
| 74 | mkdir $dirname || exit 1 |
| 75 | |
| 76 | cd $dirname |
| 77 | case "$input" in |
| 78 | /* | [A-Za-z]:\\*) |
| 79 | # Absolute path; do nothing. |
| 80 | ;; |
| 81 | *) |
| 82 | # Make a symbolic link, hard link or hardcopy. |
| 83 | ln -s ../"$input" . > /dev/null 2>&1 || ln ../"$input" . > /dev/null 2>&1 || cp ../"$input" . |
| 84 | ;; |
| 85 | esac |
| 86 | $prog ${1+"$@"} "$input" |
| 87 | status=$? |
| 88 | |
| 89 | if test $status -eq 0; then |
| 90 | set X $pairlist |
| 91 | shift |
| 92 | first=yes |
| 93 | while test "$#" -ne 0; do |
| 94 | if test -f "$1"; then |
| 95 | # If $2 is an absolute path name, then just use that, |
| 96 | # otherwise prepend `../'. |
| 97 | case "$2" in |
| 98 | /* | [A-Za-z]:\\*) target="$2";; |
| 99 | *) target="../$2";; |
| 100 | esac |
| 101 | mv "$1" "$target" || status=$? |
| 102 | else |
| 103 | # A missing file is only an error for the first file. This |
| 104 | # is a blatant hack to let us support using "yacc -d". If -d |
| 105 | # is not specified, we don't want an error when the header |
| 106 | # file is "missing". |
| 107 | if test $first = yes; then |
| 108 | status=1 |
| 109 | fi |
| 110 | fi |
| 111 | shift |
| 112 | shift |
| 113 | first=no |
| 114 | done |
| 115 | else |
| 116 | status=$? |
| 117 | fi |
| 118 | |
| 119 | # Remove the directory. |
| 120 | cd .. |
| 121 | rm -rf $dirname |
| 122 | |
| 123 | exit $status |