version.sh

   1 #!/bin/sh
   2 # version.sh - execute in the root of the project to get the version
   3 #   Unlimited permission to copy, distribute and modify this file is granted.
   4 #   This file is offered as-is, without any warranty.
   5
   6 test $# -gt 0 && PACKAGE_NAME=$1
   7 PACKAGE_NAME=${PACKAGE_NAME=helpmessage}
   8 DEF_VER="unknown_version"
   9
  10 NL='
  11 '
  12
  13 # First try git-describe, then see if there is a VERSION file (included in
  14 # release tarballs), then see if the project directory matches the project
  15 # name, then use the default.
  16 if
  17         test -d .git || test -f .git &&
  18         VN=$(git describe --abbrev=7 --match "release/*" --tags HEAD 2>/dev/null) &&
  19         case $VN in
  20         *$NL*)
  21                 false ;;
  22         release/*)
  23                 git update-index -q --refresh
  24                 test -z "$(git diff-index --name-only HEAD --)" ||
  25                 VN="$VN.dirty" ;;
  26         esac
  27 then
  28         VN=$(echo "$VN" | sed -e 's#^[rR][eE][lL][a-zA-Z]\{0,\}/##' -e 's/-/+/' -e 's/-/_/')
  29           # <tag>+<num-of-commits>_g<hash>.dirty
  30 elif
  31         test -d .git || test -f .git &&
  32         VN=$(git describe --abbrev=7 --match "version/*" --tags HEAD --always 2>/dev/null) &&
  33         case $VN in
  34         *$NL*)
  35                 false ;;
  36         version/*)
  37                 git update-index -q --refresh
  38                 test -z "$(git diff-index --name-only HEAD --)" ||
  39                 VN="$VN.dirty" ;;
  40         esac
  41 then
  42         VN=$(echo "$VN" | sed -e 's#^[vV][eE][rR][a-zA-Z]\{0,\}/##' -e 's/-/+/' -e 's/-/_/')
  43           # <tag>+<num-of-commits>_g<hash>.dirty
  44 elif
  45         test -f VERSION && test -s VERSION
  46 then
  47         VN=$(cat VERSION) || VN=$DEF_VER
  48 elif
  49         VN=$(pwd | sed -e 's#^.\{0,\}/##') &&
  50         test x"$VN" != x"${VN#"$PACKAGE_NAME-"}"
  51 then
  52         VN=${VN#"$PACKAGE_NAME-"}
  53 else
  54         VN=$DEF_VER
  55 fi
  56
  57 echo "$VN"