conftools/get-version.sh

   1 #!/bin/sh
   2 #
   3 # USAGE: get-version.sh path/to/expat.h
   4 #
   5 # This script will print Expat's version number on stdout. For example:
   6 #
   7 #   $ ./conftools/get-version.sh ./lib/expat.h
   8 #   1.95.3
   9 #   $
  10 #
  11
  12 if test $# = 0; then
  13   echo "ERROR: pathname for expat.h was not provided."
  14   echo ""
  15   echo "USAGE: $0 path/to/expat.h"
  16   exit 1
  17 fi
  18 if test $# != 1; then
  19   echo "ERROR: too many arguments were provided."
  20   echo ""
  21   echo "USAGE: $0 path/to/expat.h"
  22   exit 1
  23 fi
  24
  25 hdr="$1"
  26 if test ! -r "$hdr"; then
  27   echo "ERROR: '$hdr' does not exist, or is not readable."
  28   exit 1
  29 fi
  30
  31 MAJOR_VERSION="`sed -n -e '/MAJOR_VERSION/s/[^0-9]*//gp' $hdr`"
  32 MINOR_VERSION="`sed -n -e '/MINOR_VERSION/s/[^0-9]*//gp' $hdr`"
  33 MICRO_VERSION="`sed -n -e '/MICRO_VERSION/s/[^0-9]*//gp' $hdr`"
  34
  35 # Determine how to tell echo not to print the trailing \n. This is
  36 # similar to Autoconf's @ECHO_C@ and @ECHO_N@; however, we don't
  37 #  generate this file via autoconf (in fact, get-version.sh is used
  38 # to *create* ./configure), so we just do something similar inline.
  39 case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
  40   *c*,-n*) ECHO_N= ECHO_C='
  41 ' ;;
  42   *c*,*  ) ECHO_N=-n ECHO_C= ;;
  43   *)      ECHO_N= ECHO_C='\c' ;;
  44 esac
  45
  46 echo $ECHO_N "$MAJOR_VERSION.$MINOR_VERSION.$MICRO_VERSION$ECHO_C"