git-version.sh

   1 #!/bin/bash
   2
   3 if [ "$1" = sysv ]; then
   4     SYSV="INCLUDE"
   5     SYSTEMD="IGNORE "
   6 elif [ "$1" = systemd ]; then
   7     SYSV="IGNORE "
   8     SYSTEMD="INCLUDE"
   9 else
  10     echo You must provide either \"sysv\" or \"systemd\" as argument
  11     exit 1
  12 fi
  13
  14 echo "<!ENTITY % sysv    \"$SYSV\">"     >  conditional.ent
  15 echo "<!ENTITY % systemd \"$SYSTEMD\">"  >> conditional.ent
  16
  17 if [ -e LFS-RELEASE ]; then
  18         exit 0
  19 fi
  20
  21 if ! git status > /dev/null; then
  22     # Either it's not a git repository or git is unavailable.
  23     # Just workaround.
  24     echo "<![ %sysv; ["                                    >  version.ent
  25     echo "<!ENTITY version           \"unknown\">"         >> version.ent
  26     echo "]]>"                                             >> version.ent
  27     echo "<![ %systemd; ["                                 >> version.ent
  28     echo "<!ENTITY version           \"unknown-systemd\">" >> version.ent
  29     echo "]]>"                                             >> version.ent
  30     echo "<!ENTITY releasedate       \"unknown\">"         >> version.ent
  31     echo "<!ENTITY copyrightdate     \"1999-2023\">"       >> version.ent
  32     exit 0
  33 fi
  34
  35 export LC_ALL=en_US.utf8
  36 export TZ=America/Chicago
  37
  38 commit_date=$(git show -s --format=format:"%cd" --date=local)
  39
  40 year=$(date --date "$commit_date" "+%Y")
  41 month=$(date --date "$commit_date" "+%B")
  42 month_digit=$(date --date "$commit_date" "+%m")
  43 day=$(date --date "$commit_date" "+%d" | sed 's/^0//')
  44
  45 case $day in
  46     "1" | "21" | "31" ) suffix="st";;
  47     "2" | "22" ) suffix="nd";;
  48     "3" | "23" ) suffix="rd";;
  49     * ) suffix="th";;
  50 esac
  51
  52 full_date="$month $day$suffix, $year"
  53
  54 sha="$(git describe --abbrev=1)"
  55 rev=$(echo "$sha" | sed 's/-g[^-]*$//')
  56 version="$rev"
  57 versiond="$rev-systemd"
  58
  59 if [ "$(git diff HEAD | wc -l)" != "0" ]; then
  60     version="$version-wip"
  61     versiond="$versiond-wip"
  62 fi
  63
  64 echo "<![ %sysv; ["                                        >  version.ent
  65 echo "<!ENTITY version           \"$version\">"            >> version.ent
  66 echo "]]>"                                                 >> version.ent
  67 echo "<![ %systemd; ["                                     >> version.ent
  68 echo "<!ENTITY version          \"$versiond\">"            >> version.ent
  69 echo "]]>"                                                 >> version.ent
  70 echo "<!ENTITY releasedate       \"$full_date\">"          >> version.ent
  71 echo "<!ENTITY copyrightdate     \"1999-$year\">"          >> version.ent
  72
  73 [ -z "$DIST" ] || echo $version > "$DIST"