rockbox/tools/svnversion.sh

#!/bin/sh
#             __________               __   ___.
#   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
#   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
#   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
#   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
#                     \/            \/     \/    \/            \/
# $Id$
#

# Usage: svnversion.sh [source-root]

# Prints the revision "rXYZ" of the first argument, as reported by svnversion.
# Prints "unknown" if svnversion fails or says "exported".
svnversion_safe() {
    # LANG=C forces svnversion to not localize "exported".
    if OUTPUT=`LANG=C svnversion "$@"`; then
        if [ "$OUTPUT" = "exported" ]; then
            echo "unknown"
        else
            echo "r$OUTPUT"
        fi
    else
        echo "unknown"
    fi
}

VERSIONFILE=docs/VERSION
if [ -n "$1" ]; then TOP=$1; else TOP=..; fi
if [ -r $TOP/$VERSIONFILE ]; then SVNVER=`cat $TOP/$VERSIONFILE`; 
else
    SVNVER=`svnversion_safe $TOP`;
    if [ "$SVNVER" = "unknown" ]; then
        # try getting it from a subdir to test if perhaps they are symlinked
        # from the root
        SVNVER=`svnversion_safe $TOP/tools`;
    fi
fi
VERSION=$SVNVER-`date -u +%y%m%d`
echo $VERSION