support/mkversion.sh

   1 #! /bin/sh
   2
   3 # Simple program to make new version numbers for the shell.
   4 # Big deal, but it was getting out of hand to do everything
   5 # in the makefile.  This creates a file named by the -o option,
   6 # otherwise everything is echoed to the standard output.
   7
   8 # Copyright (C) 1996-2002 Free Software Foundation, Inc.
   9 #
  10 #   This program is free software: you can redistribute it and/or modify
  11 #   it under the terms of the GNU General Public License as published by
  12 #   the Free Software Foundation, either version 3 of the License, or
  13 #   (at your option) any later version.
  14 #
  15 #   This program is distributed in the hope that it will be useful,
  16 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 #   GNU General Public License for more details.
  19 #
  20 #   You should have received a copy of the GNU General Public License
  21 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 #
  23
  24 PROGNAME=`basename $0`
  25 USAGE="$PROGNAME [-b] [-S srcdir] -d version -p patchlevel [-s status] [-o outfile]"
  26
  27 source_dir="."
  28
  29 while [ $# -gt 0 ]; do
  30         case "$1" in
  31         -o)     shift; OUTFILE=$1; shift ;;
  32         -b)     shift; inc_build=yes ;;
  33         -s)     shift; rel_status=$1; shift ;;
  34         -p)     shift; patch_level=$1; shift ;;
  35         -d)     shift; dist_version=$1; shift ;;
  36         -S)     shift; source_dir="$1"; shift ;;
  37         *)      echo "$PROGNAME: usage: $USAGE" >&2 ; exit 2 ;;
  38         esac
  39 done
  40
  41 # Required arguments
  42 if [ -z "$dist_version" ]; then
  43         echo "${PROGNAME}: required argument -d missing" >&2
  44         echo "$PROGNAME: usage: $USAGE" >&2
  45         exit 1
  46 fi
  47
  48 #if [ -z "$patch_level" ]; then
  49 #       echo "${PROGNAME}: required argument -p missing" >&2
  50 #       echo "$PROGNAME: usage: $USAGE" >&2
  51 #       exit 1
  52 #fi
  53
  54 # Defaults
  55 if [ -z "$rel_status" ]; then
  56         rel_status="release"
  57 fi
  58
  59 build_ver=
  60 if [ -r .build ]; then
  61         build_ver=`cat .build`
  62 fi
  63 if [ -z "$build_ver" ]; then
  64         build_ver=0
  65 fi
  66
  67 # increment the build version if that's what's required
  68
  69 if [ -n "$inc_build" ]; then
  70         build_ver=`expr 1 + $build_ver`
  71 fi
  72
  73 # what's the patch level?
  74 if [ -z "$patch_level" ]; then
  75         patchlevel_h=$source_dir/patchlevel.h
  76         if [ -s $patchlevel_h ]; then
  77                 patch_level=`cat $patchlevel_h | grep '^#define[        ]*PATCHLEVEL' | awk '{print $NF}'`
  78         fi
  79 fi
  80 if [ -z "$patch_level" ]; then
  81         patch_level=0
  82 fi
  83
  84 # If we have an output file specified, make it the standard output
  85 if [ -n "$OUTFILE" ]; then
  86         if exec >$OUTFILE; then
  87                 :
  88         else
  89                 echo "${PROGNAME}: cannot redirect standard output to $OUTFILE" >&2
  90                 exit 1
  91         fi
  92 fi
  93
  94 # Output the leading comment.
  95 echo "/* Version control for the shell.  This file gets changed when you say"
  96 echo "   \`make version.h' to the Makefile.  It is created by mkversion. */"
  97
  98 # Output the distribution version.  Single numbers are converted to x.00.
  99 # Allow, as a special case, `[:digit:].[:digit:][:alpha:]' for
 100 # intermediate versions (e.g., `2.5a').
 101 # Any characters other than digits and `.' are invalid.
 102 case "$dist_version" in
 103 [0-9].[0-9][a-z])       ;;      # special case
 104 *[!0-9.]*)      echo "mkversion.sh: ${dist_version}: bad distribution version" >&2
 105                 exit 1 ;;
 106 *.*)    ;;
 107 *)      dist_version=${dist_version}.00 ;;
 108 esac
 109
 110 dist_major=`echo $dist_version | sed 's:\..*$::'`
 111 [ -z "${dist_major}" ] && dist_major=0
 112
 113 dist_minor=`echo $dist_version | sed 's:^.*\.::'`
 114 case "$dist_minor" in
 115 "")     dist_minor=0 ;;
 116 [a-z])  dist_minor=0${dist_minor} ;;
 117 ?)      dist_minor=${dist_minor} ;;
 118 *)      ;;
 119 esac
 120
 121 #float_dist=`echo $dist_version | awk '{printf "%.2f\n", $1}'`
 122 float_dist=${dist_major}.${dist_minor}
 123
 124 echo
 125 echo "/* The distribution version number of this shell. */"
 126 echo "#define DISTVERSION \"${float_dist}\""
 127
 128 # Output the patch level
 129 #echo
 130 #echo "/* The patch level of this version of the shell. */"
 131 #echo "#define PATCHLEVEL ${patch_level}"
 132
 133 # Output the build version
 134 echo
 135 echo "/* The last built version of this shell. */"
 136 echo "#define BUILDVERSION ${build_ver}"
 137
 138 # Output the release status
 139 echo
 140 echo "/* The release status of this shell. */"
 141 echo "#define RELSTATUS \"${rel_status}\""
 142
 143 echo
 144 echo "/* The default shell compatibility-level (the current version) */"
 145 echo "#define DEFAULT_COMPAT_LEVEL ${dist_major}${dist_minor}"
 146
 147 # Output the SCCS version string
 148 sccs_string="${float_dist}.${patch_level}(${build_ver}) ${rel_status} GNU"
 149 echo
 150 echo "/* A version string for use by sccs and the what command. */"
 151 echo "#define SCCSVERSION \"@(#)Bash version ${sccs_string}\""
 152
 153 # extern function declarations
 154 #echo
 155 #echo '/* Functions from version.c. */'
 156 #echo 'extern char *shell_version_string __P((void));'
 157 #echo 'extern void show_shell_version __P((int));'
 158
 159 if [ -n "$inc_build" ]; then
 160         # Make sure we can write to .build
 161         if [ -f .build ] && [ ! -w .build ]; then
 162                 echo "$PROGNAME: cannot write to .build, not incrementing build version" >&2
 163         else
 164                 echo "$build_ver" > .build
 165         fi
 166 fi
 167
 168 exit 0