1 files changed, 85 insertions, 0 deletions
diff --git a/tools/version.sh b/tools/version.sh
new file mode 100755
index 0000000000..9f47afcfd2
--- /dev/null
+++ b/tools/version.sh
@@ -0,0 +1,85 @@
+#!/bin/sh
+#             __________               __   ___.
+#   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+#   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+#   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+#   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+#                     \/            \/     \/    \/            \/
+# $Id$
+#
+
+# Usage: version.sh [source-root]
+
+# Prints the revision of the repository.
+#
+# The format is rNNNNN[M]-YYMMDD
+#
+# The M indicates the revision isn't matched to a pure Subversion ID, usually
+# because it's built from something like GIT.
+
+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
+}
+
+# This logic is pulled from the Linux's scripts/setlocalversion (also GPL) and tweaked for
+# rockbox. If the commit information for HEAD has a svn-id in it we report that instead of
+# the git id
+gitversion() {
+    export GIT_DIR="$1"
+
+    # This verifies we are in a git directory
+    if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
+
+	# Get the svn revision of the most recent git-svn commit
+	version=`git log --pretty=format:'%b' --grep='git-svn-id: svn' -1 | head -n 1 | perl -ne 'm/@(\d*)/; print "r" . $1;'`
+	mod=""
+	# Is this a git-svn commit?
+	if ! git log  HEAD^.. --pretty=format:"%b" | grep -q "git-svn-id: svn" ; then
+	    mod="M"
+	fi
+
+	# Are there uncommitted changes?
+	git update-index --refresh --unmerged > /dev/null
+	if git diff-index --name-only HEAD | read dummy; then
+	    mod="M"
+	fi
+
+	echo "${version}${mod}"
+	# All done with git
+	exit
+    fi
+}
+
+#
+# First locate the top of the src tree (passed in usually)
+#
+if [ -n "$1" ]; then TOP=$1; else TOP=..; fi
+
+# If the VERSIONFILE exisits we use that
+VERSIONFILE=docs/VERSION
+if [ -r $TOP/$VERSIONFILE ]; then VER=`cat $TOP/$VERSIONFILE`; 
+else
+    # Ok, we need to derive it from the Version Control system
+    if [ -d "$TOP/.git" ]; then
+	VER=`gitversion $TOP/.git`
+    else
+	VER=`svnversion_safe $TOP`;
+	if [ "$VER" = "unknown" ]; then
+        # try getting it from a subdir to test if perhaps they are symlinked
+        # from the root
+        VER=`svnversion_safe $TOP/tools`;
+	fi
+    fi
+fi
+VERSION=$VER-`date -u +%y%m%d`
+echo $VERSION
+