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Annotation of embedaddon/expat/conftools/get-version.sh, revision 1.1.1.1

1.1       misho       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"