1 files changed, 73 insertions, 0 deletions
diff --git a/cmake/Modules/GrVersion.cmake b/cmake/Modules/GrVersion.cmake
new file mode 100644
index 000000000..ab2959c0d
--- /dev/null
+++ b/cmake/Modules/GrVersion.cmake
@@ -0,0 +1,73 @@
+# Copyright 2011 Free Software Foundation, Inc.
+# 
+# This file is part of GNU Radio
+# 
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+# 
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+
+IF(DEFINED __INCLUDED_GR_VERSION_CMAKE)
+    RETURN()
+ENDIF()
+SET(__INCLUDED_GR_VERSION_CMAKE TRUE)
+
+########################################################################
+# Setup version variables.
+# Parse the output of git describe
+# sets VERSION and LIBVER
+########################################################################
+
+UNSET(VERSION)
+UNSET(LIBVER)
+
+########################################################################
+# Extract the version string from git describe.
+########################################################################
+FIND_PACKAGE(Git)
+IF(GIT_FOUND)
+    MESSAGE(STATUS "Extracting version information from git...")
+    EXECUTE_PROCESS(COMMAND ${GIT_EXECUTABLE} describe
+        OUTPUT_VARIABLE VERSION OUTPUT_STRIP_TRAILING_WHITESPACE
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+    )
+    IF(NOT VERSION)
+        MESSAGE(WARNING "Tried to extract $VERSION from git describe but failed... using default")
+    ENDIF()
+ENDIF(GIT_FOUND)
+
+########################################################################
+# Extract the library version from the version string.
+########################################################################
+IF(VERSION)
+    INCLUDE(GrPython)
+    EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} -c "import re; print re.match('^v(\\d+\\.\\d+\\.\\d+)', '${VERSION}').groups()[0]"
+        OUTPUT_VARIABLE LIBVER OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    IF(NOT LIBVER)
+        MESSAGE(WARNING "Tried to extract $LIBVER from $VERSION but failed... using default")
+    ENDIF()
+ENDIF()
+
+########################################################################
+# Ensure that the version strings are set no matter what.
+########################################################################
+IF(NOT VERSION)
+    SET(VERSION "v3.x.x-unknown")
+ENDIF()
+
+IF(NOT LIBVER)
+    SET(LIBVER "3.x.x")
+ENDIF()
+
+MESSAGE(STATUS "VERSION: ${VERSION}, LIBVER: ${LIBVER}")