changed generation of git-revision.h which allows to keep it up-to-date. Aditionally git-branch info has been added.

src/git_revision.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+echo "Generating header for git hash" $1 $2
+GIT_HEADER="$1/$2"
+if [ -z "$2" ]; then
+        GIT_HEADER="$1/git-revision.h"
+fi
+
+GIT_BRANCH=`git rev-parse --abbrev-ref HEAD`
+
+GIT_VERSION=`git log -n 1 --pretty=format:"%ad - %h"`
+if grep --quiet "$GIT_VERSION" $GIT_HEADER; then
+        echo "No need to generate new $GIT_HEADER - git hash is unchanged"
+        exit 0;
+fi
+
+echo "git branch is  : " $GIT_BRANCH
+echo "git version is : " $GIT_VERSION
+
+echo "#ifndef GIT_VERSION_H" > $GIT_HEADER
+echo "#define GIT_VERSION_H" >> $GIT_HEADER
+echo "" >> $GIT_HEADER
+echo "#define GIT_BRANCH \"$GIT_BRANCH\"" >> $GIT_HEADER
+echo "#define GIT_CURRENT_SHA1 \"$GIT_VERSION\"" >> $GIT_HEADER
+echo "" >> $GIT_HEADER
+echo "#endif //GIT_VERSION_H" >> $GIT_HEADER
+
+echo "file is generated into" $GIT_HEADER