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#!/bin/sh
#
# Create a build ID for this build. If we're using a git tree,
# generate an ID from "git describe", otherwise use the passed-in
# timestamp.
#
# Usage: gen-id.sh version timestamp
#
ver="$1"
tim="$2"
top=`dirname "$0"`
if test -n "$GIT_DIR" -o -d "$top"/.git -o -f "$top"/.git; then
id="$(git describe)"
if test -n "$id"; then
if test x"$(echo "$id" | cut -d- -f1)" = xsyslinux; then
id="$(echo "$id" | cut -d- -f2-)"
if test x"$(echo "$id" | cut -d- -f1)" = x"$ver"; then
id="$(echo "$id" | cut -d- -f2-)"
fi
fi
fi
if test -n "$id"; then
if test -n "$(git diff-index --name-only HEAD)"; then
id="${id}"\*
fi
fi
fi
if test -z "$id"; then
id="$tim"
fi
echo "$id"
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