1 files changed, 43 insertions, 0 deletions

diff --git a/fs/btrfs/version.sh b/fs/btrfs/version.sh
new file mode 100644
index 000000000000..1ca1952fd917
--- /dev/null
+++ b/fs/btrfs/version.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+# determine-version -- report a useful version for releases
+#
+# Copyright 2008, Aron Griffis <agriffis@n01se.net>
+# Copyright 2008, Oracle
+# Released under the GNU GPLv2
+ 
+v="v0.16"
+
+which git &> /dev/null
+if [ $? == 0 ]; then
+    git branch >& /dev/null
+    if [ $? == 0 ]; then
+            if head=`git rev-parse --verify HEAD 2>/dev/null`; then
+                if tag=`git describe --tags 2>/dev/null`; then
+                    v="$tag"
+                fi
+
+                # Are there uncommitted changes?
+                git update-index --refresh --unmerged > /dev/null
+                if git diff-index --name-only HEAD | \
+                    grep -v "^scripts/package" \
+                    | read dummy; then
+                    v="$v"-dirty
+                fi
+            fi
+    fi
+fi
+ 
+echo "#ifndef __BUILD_VERSION" > .build-version.h
+echo "#define __BUILD_VERSION" >> .build-version.h
+echo "#define BTRFS_BUILD_VERSION \"Btrfs $v\"" >> .build-version.h
+echo "#endif" >> .build-version.h
+
+diff -q version.h .build-version.h >& /dev/null
+
+if [ $? == 0 ]; then
+    rm .build-version.h
+    exit 0
+fi
+
+mv .build-version.h version.h