chiark - git - mdw - runlisp/blob - .ext/cfd/build/auto-version

1 #! /bin/sh

2 ### -*-sh-*-

3 ###

4 ### Make autoconf-like substitutions in files

5 ###

7 ###

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.

27 set -e

29 ###--------------------------------------------------------------------------

30 ### Parse command line arguments.

32 while [ $# -gt 0 ]; do

33 case $1 in

34 -h | --h | --he | --hel | --help)

35 cat <<EOF

36 Usage: auto-verison

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

60 if [ $# -ne 0 ]; then

61 echo >&2 "Usage: auto-version"

62 exit 1

63 fi

65 ###--------------------------------------------------------------------------

66 ### Main program.

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

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

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

95 ## Otherwise we're screwed.

96 echo UNKNOWN

97 exit 0

99 ###----- That's all, folks --------------------------------------------------