gen-id.sh

   1 #!/bin/sh
   2 #
   3 # Create a build ID for this build.  If we're using a git tree,
   4 # generate an ID from "git describe", otherwise use the passed-in
   5 # timestamp.
   6 #
   7 # Usage: gen-id.sh version timestamp
   8 #
   9
  10 ver="$1"
  11 tim="$1"
  12
  13 if test -n "$GIT_DIR" -o -d ../.git -o -f ../.git; then
  14     id="$(git describe)"
  15     if test -n "$id"; then
  16         if test x"$(echo "$id" | cut -d- -f1)" = xsyslinux; then
  17             id="$(echo "$id" | cut -d- -f2-)"
  18             if test x"$(echo "$id" | cut -d- -f1)" = x"$ver"; then
  19                 id="$(echo "$id" | cut -d- -f2-)"
  20             fi
  21         fi
  22     fi
  23     if test -n "$id"; then
  24         if test -n "$(git diff-index --name-only HEAD)"; then
  25             id="${id}"\*
  26         fi
  27     fi
  28 fi
  29 if test -z "$id"; then
  30   id="$tim"
  31 fi
  32 echo "$id"