dist/U/Mksymlinks.U

   1 ?RCS: $Id$
   2 ?RCS:
   3 ?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
   4 ?RCS:
   5 ?RCS: You may redistribute only under the terms of the Artistic License,
   6 ?RCS: as specified in the README file that comes with the distribution.
   7 ?RCS: You may reuse parts of this distribution only within the terms of
   8 ?RCS: that same Artistic License; a copy of which may be found at the root
   9 ?RCS: of the source tree for dist 4.0.
  10 ?RCS:
  11 ?RCS: Copyright (c) 2000, Jarkko Hietaniemi
  12 ?RCS:
  13 ?X:
  14 ?X: This unit allows the duplication of the source tree to the current
  15 ?X:     directory via symbolic links.  This must be requested explicitly
  16 ?X:     by them issuing a -Dmksymlinks on the command line.
  17 ?X:
  18 ?MAKE:Mksymlinks: Mkdirp lns issymlink src rsrc pkgsrc
  19 ?MAKE:  -pick add $@ %<
  20 ?F:!UU
  21 ?T: dir filename tmppwd filelist
  22 ?LINT:extern mksymlinks
  23 @if {test -f ../MANIFEST}
  24 : Duplicate the tree with symbolic links if -Dmksymlinks was supplied
  25 case "$mksymlinks" in
  26 $define|true|[yY]*)
  27         echo " "
  28         case "$src" in
  29         ''|'.') echo "Cannot create symlinks in the original directory." >&4
  30                 exit 1
  31                 ;;
  32         *)      case "$lns:$issymlink" in
  33                 *"ln"*" -s:"*"test -"?)
  34                         echo "Creating the symbolic links..." >&4
  35                         echo "(First creating the subdirectories...)" >&4
  36                         cd ..
  37                         awk '{print $1}' $src/MANIFEST | grep / | sed 's:/[^/]*$::' | \
  38                                 sort -u | while true
  39                         do
  40                                 read dir
  41                                 test -z "$dir" && break
  42                                 ./UU/mkdirp $dir 2>/dev/null
  43                                 if test -d $dir; then
  44                                         : ok
  45                                 else
  46                                         echo "Failed to create '$dir'.  Aborting." >&4
  47                                         exit 1
  48                                 fi
  49                         done
  50                         echo "(Now creating the symlinks...)" >&4
  51                         awk '{print $1}' $src/MANIFEST | while true; do
  52                                 read filename
  53                                 test -z "$filename" && break
  54                                 if test -f $filename; then
  55                                         if $issymlink $filename; then
  56                                                 rm -f $filename
  57                                         fi
  58                                 fi
  59                                 if test -f $filename; then
  60                                         echo "$filename already exists, not symlinking."
  61                                 else
  62 ?X: Note that the following works because "$pkgsrc" is absolute
  63                                         ln -s $pkgsrc/$filename $filename
  64                                 fi
  65                         done
  66 ?X: Check that everything was correctly copied
  67                         echo "(Checking current directory...)" >&4
  68                         cd UU
  69                         awk '$1 !~ /PACK[A-Z]+/ {print $1}' "$rsrc/MANIFEST" | \
  70                                 (split -l 50 2>/dev/null || split -50)
  71                         rm -f missing
  72                         tmppwd=`pwd`
  73                         for filelist in x??; do
  74                                 (cd ..; ls `cat "$tmppwd/$filelist"` \
  75                                         >/dev/null 2>>"$tmppwd/missing")
  76                         done
  77                         if test -s missing; then
  78                                 echo "Failed duplication of source tree.  Aborting." >&4
  79                                 exit 1
  80                         fi
  81                         ;;
  82                 *)      echo "(I cannot figure out how to do symbolic links, ignoring!)" >&4
  83                         ;;
  84                 esac
  85                 ;;
  86         esac
  87         ;;
  88 esac
  89
  90 @end