cde/util/scripts/mdepend.cpp

   1 XCOMM!/bin/sh
   2 XCOMM
   3 XCOMM $XConsortium: mdepend.cpp,v 1.7 91/08/22 11:42:53 rws Exp $
   4 XCOMM
   5 XCOMM   Do the equivalent of the 'makedepend' program, but do it right.
   6 XCOMM
   7 XCOMM   Usage:
   8 XCOMM
   9 XCOMM   makedepend [cpp-flags] [-w width] [-s magic-string] [-f makefile]
  10 XCOMM     [-o object-suffix]
  11 XCOMM
  12 XCOMM   Notes:
  13 XCOMM
  14 XCOMM   The C compiler used can be overridden with the environment
  15 XCOMM   variable "CC".
  16 XCOMM
  17 XCOMM   The "-v" switch of the "makedepend" program is not supported.
  18 XCOMM
  19 XCOMM
  20 XCOMM   This script should
  21 XCOMM   work on both USG and BSD systems.  However, when System V.4 comes out,
  22 XCOMM   USG users will probably have to change "silent" to "-s" instead of
  23 XCOMM   "-" (at least, that is what the documentation implies).
  24 XCOMM
  25 CC=PREPROC
  26
  27 silent='-'
  28
  29 TMP=/tmp/mdep$$
  30 CPPCMD=${TMP}a
  31 DEPENDLINES=${TMP}b
  32 TMPMAKEFILE=${TMP}c
  33 MAGICLINE=${TMP}d
  34 ARGS=${TMP}e
  35
  36 trap "rm -f ${TMP}*; exit 1" 1 2 15
  37 trap "rm -f ${TMP}*; exit 0" 1 2 13
  38
  39 echo " \c" > $CPPCMD
  40 if [ `wc -c < $CPPCMD` -eq 1 ]
  41 then
  42     c="\c"
  43     n=
  44 else
  45     c=
  46     n="-n"
  47 fi
  48
  49 echo $n "$c" >$ARGS
  50
  51 files=
  52 makefile=
  53 magic_string='# DO NOT DELETE'
  54 objsuffix='.o'
  55 width=78
  56 endmarker=""
  57 verbose=n
  58
  59 while [ $# != 0 ]
  60 do
  61     if [ "$endmarker"x != x -a "$endmarker" = "$1" ]; then
  62         endmarker=""
  63     else
  64         case "$1" in
  65             -D*|-I*)
  66                 echo $n " '$1'$c" >> $ARGS
  67                 ;;
  68
  69             -g|-o)
  70                 ;;
  71
  72             *)
  73                 if [ "$endmarker"x = x ]; then
  74                     case "$1" in
  75                         -w)
  76                             width="$2"
  77                             shift
  78                             ;;
  79                         -s)
  80                             magic_string="$2"
  81                             shift
  82                             ;;
  83                         -f)
  84                             makefile="$2"
  85                             shift
  86                             ;;
  87                         -o)
  88                             objsuffix="$2"
  89                             shift
  90                             ;;
  91
  92                         --*)
  93                             echo "$1" | sed 's/^\-\-//' >${TMP}end
  94                             endmarker="`cat ${TMP}end`"
  95                             rm -f ${TMP}end
  96                             if [ "$endmarker"x = x ]; then
  97                                 endmarker="--"
  98                             fi
  99                             ;;
 100                         -v)
 101                             verbose="y"
 102                             ;;
 103
 104                         -cc)
 105                             CC="$2"
 106                             shift
 107                             ;;
 108
 109                         -*)
 110                             echo "Unknown option '$1' ignored" 1>&2
 111                             ;;
 112                         *)
 113                             files="$files $1"
 114                             ;;
 115                     esac
 116                 fi
 117                 ;;
 118         esac
 119     fi
 120     shift
 121 done
 122 echo ' $*' >> $ARGS
 123
 124 echo "exec $CC `cat $ARGS`" > $CPPCMD
 125 chmod +x $CPPCMD
 126 rm $ARGS
 127
 128 case "$makefile" in
 129     '')
 130         if [ -r makefile ]
 131         then
 132             makefile=makefile
 133         elif [ -r Makefile ]
 134         then
 135             makefile=Makefile
 136         else
 137             echo 'no makefile or Makefile found' 1>&2
 138             exit 1
 139         fi
 140         ;;
 141     -)
 142         makefile=$TMPMAKEFILE
 143         ;;
 144 esac
 145
 146 if [ "$verbose"x = "y"x ]; then
 147     cat $CPPCMD
 148 fi
 149
 150 echo '' > $DEPENDLINES
 151 for i in $files
 152 do
 153     $CPPCMD $i \
 154       | sed -n "/^#/s;^;$i ;p"
 155 done \
 156   | sed -e 's|/[^/.][^/]*/\.\.||g' -e 's|/\.[^.][^/]*/\.\.||g' \
 157     -e 's|"||g' -e 's| \./| |' \
 158   | awk '{
 159         if ($1 != $4  &&  $2 != "#ident")
 160             {
 161             ofile = substr ($1, 1, length ($1) - 2) "'"$objsuffix"'"
 162             print ofile, $4
 163             }
 164         }' \
 165   | sort -u \
 166   | awk '
 167             {
 168             newrec = rec " " $2
 169             if ($1 != old1)
 170                 {
 171                 old1 = $1
 172                 if (rec != "")
 173                     print rec
 174                 rec = $1 ": " $2
 175                 }
 176             else if (length (newrec) > '"$width"')
 177                 {
 178                 print rec
 179                 rec = $1 ": " $2
 180                 }
 181             else
 182                 rec = newrec
 183             }
 184         END \
 185             {
 186             if (rec != "")
 187                 print rec
 188             }' \
 189   | egrep -v '^[^:]*:[  ]*$' >> $DEPENDLINES
 190
 191 trap "" 1 2 13 15       # Now we are committed
 192 case "$makefile" in
 193     $TMPMAKEFILE)
 194         ;;
 195     *)
 196         rm -f $makefile.bak
 197         cp $makefile $makefile.bak
 198         echo "Appending dependencies to $makefile"
 199         ;;
 200 esac
 201
 202 XCOMM
 203 XCOMM Append the magic string and a blank line so that /^$magic_string/+1,\$d
 204 XCOMM can be used to delete everything from after the magic string to the end
 205 XCOMM of the file.  Then, append a blank line again and then the dependencies.
 206 XCOMM
 207 cat >> $makefile << END_OF_APPEND
 208
 209 $magic_string
 210
 211 END_OF_APPEND
 212 ed $silent $makefile << END_OF_ED_SCRIPT
 213 /^$magic_string/+1,\$d
 214 w
 215 q
 216 END_OF_ED_SCRIPT
 217 echo '' >>$makefile
 218 cat $DEPENDLINES >>$makefile
 219
 220 case "$makefile" in
 221     $TMPMAKEFILE)
 222         cat $TMPMAKEFILE
 223         ;;
 224
 225 esac
 226
 227 rm -f ${TMP}*
 228 exit 0