# Arguments given? Show help text.

if [ "$#" != "0" ]; then

	cat <<EOF

Usage: ./findversion.sh

Finds the current revision and if the code is modified.

REV

    a string describing what version of the code the current checkout is

    based on. The exact format of this string depends on the version

    control system in use, but it tries to identify the revision used as

    close as possible (using the svn revision number or hg/git hash).

    This also includes an indication of whether the checkout was

    Modification is determined in relation to the commit identified by

    REV, so not in relation to the svn revision identified by REV_NR.

    A value of 1 means that the modified status is unknown, because this

    is not an svn/git/hg checkout for example.

By setting the AWK environment variable, a caller can determine which

version of "awk" is used. If nothing is set, this script defaults to

"awk".

EOF

exit 1;

fi

	# We are an svn checkout

	if svnversion "$SRC_DIR" | grep 'M' > /dev/null; then

		MODIFIED="2"

	fi

	# Find the revision like: rXXXXM-branch

	BRANCH=`LC_ALL=C svn info "$SRC_DIR" | "$AWK" '/^URL:.*branches/ { split($2, a, "/"); for(i in a) if (a[i]=="branches") { print a[i+1]; break } }'`

	REV_NR=`LC_ALL=C svn info "$SRC_DIR" | "$AWK" '/^Last Changed Rev:/ { print $4 }'`

	REV="r$REV_NR"

elif [ -d "$ROOT_DIR/.git" ]; then

	# We are a git checkout

	if git diff-index HEAD "$SRC_DIR" | read dummy; then

		MODIFIED="2"

	fi

	HASH=`LC_ALL=C git rev-parse --verify HEAD 2>/dev/null | cut -c1-8`

fi

if [ "$MODIFIED" -eq "2" ]; then

	REV="${REV}M"

fi

if [ -n "$BRANCH" ]; then

	REV="${REV}-$BRANCH"

fi