git_version_info.sh.in

#!/bin/sh

# Get git commit hash etc
COMMIT_HASH=`@GIT_EXECUTABLE@ rev-parse HEAD`
USER_NAME=`@GIT_EXECUTABLE@ config user.name`
USER_EMAIL=`@GIT_EXECUTABLE@ config user.email`
TIMESTAMP=`date`
BRANCH_NAME=`@GIT_EXECUTABLE@ rev-parse --abbrev-ref HEAD`

# Check for uncommitted changes
@GIT_EXECUTABLE@ diff HEAD --exit-code --quiet
UNCOMMITTED_CHANGES=$?

# Create the output file
cat << EOF
char commit_hash[] = "${COMMIT_HASH}";
char source_dir[]  = "@CMAKE_SOURCE_DIR@";
char build_dir[]   = "@CMAKE_BINARY_DIR@";
char branch_name[] = "${BRANCH_NAME}";
char user_name[]   = "${USER_NAME}";
char user_email[]  = "${USER_EMAIL}";
char build_time[]  = "${TIMESTAMP}";
int uncommitted_changes = ${UNCOMMITTED_CHANGES};
EOF