mdw@git.distorted.org.uk Git - runlisp/blob - build/auto-version

   1 #! /bin/sh
   2 ### -*-sh-*-
   3 ###
   4 ### Make autoconf-like substitutions in files
   5 ###
   6 ### (c) 2008 Mark Wooding
   7 ###
   8
   9 ###----- Licensing notice ---------------------------------------------------
  10 ###
  11 ### This file is part of the Common Files Distribution (`common').
  12 ###
  13 ### `Common' is free software; you can redistribute it and/or modify
  14 ### it under the terms of the GNU General Public License as published by
  15 ### the Free Software Foundation; either version 2 of the License, or
  16 ### (at your option) any later version.
  17 ###
  18 ### `Common' is distributed in the hope that it will be useful,
  19 ### but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ### GNU General Public License for more details.
  22 ###
  23 ### You should have received a copy of the GNU General Public License
  24 ### along with `common'; if not, write to the Free Software Foundation,
  25 ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  26
  27 set -e
  28
  29 ###--------------------------------------------------------------------------
  30 ### Parse command line arguments.
  31
  32 while [ $# -gt 0 ]; do
  33   case $1 in
  34     -h | --h | --he | --hel | --help)
  35       cat <<EOF
  36 Usage: auto-verison
  37
  38 Writes on standard output the program's version number.
  39 EOF
  40       exit 0
  41       ;;
  42     --)
  43       shift
  44       break
  45       ;;
  46     -)
  47       break
  48       ;;
  49     -*)
  50       echo "auto-version: unknown option \`$1'" >&2
  51       exit 1
  52       ;;
  53     *)
  54       break
  55       ;;
  56   esac
  57   shift
  58 done
  59
  60 if [ $# -ne 0 ]; then
  61   echo >&2 "Usage: auto-version"
  62   exit 1
  63 fi
  64
  65 ###--------------------------------------------------------------------------
  66 ### Main program.
  67
  68 ## If this is a Git checkout then Git should be able to identify the version.
  69 ## If there's also a Debian version, and that ends in a `~', then prefix the
  70 ## Git version with this.  Note that `pkg-config' is not very good, and, in
  71 ## particular, doesn't support the convention that `~' sorts before anything
  72 ## else, even the empty string, despite claiming to implement the RPM
  73 ## version-comparison algorithm which specifies this behaviour, so one must
  74 ## be careful when choosing `~' prefixes.
  75 if [ -e .git ] && version=$(git describe --abbrev=4 --dirty=+ 2>/dev/null); then
  76   debver=$(sed -n '/^.*(\(.*\)).*$/ { s::\1:p; q; }' debian/changelog)
  77   case $debver in *~) version=$debver$version ;; esac
  78   echo "$version"
  79   exit 0
  80 fi
  81
  82 ## If this was unpacked from a source distribution, the RELEASE file should
  83 ## say what the version was.
  84 if [ -f RELEASE ]; then
  85   cat RELEASE
  86   exit 0
  87 fi
  88
  89 ## If we're Debianized, then the Debian changelog ought to know.
  90 if [ -f debian/changelog ]; then
  91   sed -n '/^.*(\(.*\)).*$/ { s::\1:p; q; }' debian/changelog
  92   exit 0
  93 fi
  94
  95 ## Otherwise we're screwed.
  96 echo UNKNOWN
  97 exit 0
  98
  99 ###----- That's all, folks --------------------------------------------------