maint/version.sh

   1 #!/bin/sh
   2
   3 if [ -z "$1" ]
   4   then
   5       echo "usage: $0 <toplevel-source-dir>"
   6       exit 1
   7 fi
   8
   9 src_top_dir="$1"
  10
  11 VERSION_FILE="${src_top_dir}/version.h"
  12 PREV_MC_VERSION="unknown"
  13 CURR_MC_VERSION="${PREV_MC_VERSION}"
  14
  15 if [ -r "${VERSION_FILE}" ]
  16   then
  17     PREV_MC_VERSION=`sed -n 's/^#define MC_CURRENT_VERSION "\(.*\)"$/\1/p' "${VERSION_FILE}"`
  18     CURR_MC_VERSION="${PREV_MC_VERSION}"
  19 fi
  20
  21 mc_print_version(){
  22
  23     if [ ! -f "${VERSION_FILE}" \
  24          -o "${PREV_MC_VERSION}" != "${CURR_MC_VERSION}" ]
  25       then
  26         cat >"${VERSION_FILE}" <<EOF
  27 #ifndef MC_CURRENT_VERSION
  28 /* This is an autogenerated file. Don't edit! */
  29 #define MC_CURRENT_VERSION "${CURR_MC_VERSION}"
  30 #endif
  31 EOF
  32     fi
  33     exit
  34 }
  35
  36 git_head=`git --git-dir "${src_top_dir}/.git" rev-parse --verify HEAD 2>/dev/null`
  37 [ -z "${git_head}" ] && mc_print_version
  38
  39 # try to store sha1
  40 CURR_MC_VERSION="${git_head}"
  41
  42 new_version=`git --git-dir "${src_top_dir}/.git" describe 2>/dev/null`
  43 [ -z "${new_version}" ] && mc_print_version
  44
  45 # store pretty tagged version
  46 CURR_MC_VERSION="${new_version}"
  47 mc_print_version