From 9c258fa7e1e65fb7e5aa4f79a9f2fed86bc1c3cf Mon Sep 17 00:00:00 2001
From: Michel Ferrero <mferrero@cpht.polytechnique.fr>
Date: Thu, 29 Aug 2013 11:41:19 +0200
Subject: [PATCH] Add tools to be able to find version and release

I added a version.hpp and updated the version.py so that
one can find the version of the library either from the
c++ or the python (if there is python support).

  modified:   CMakeLists.txt
  modified:   cmake/TRIQSConfig.cmake.in
  modified:   pytriqs/version.py.in
  modified:   triqs/CMakeLists.txt
  new file:   triqs/version.hpp.in
---
 CMakeLists.txt             |  3 ++-
 cmake/TRIQSConfig.cmake.in |  1 +
 pytriqs/version.py.in      | 50 ++++++++++++++++++--------------------
 triqs/CMakeLists.txt       |  4 +++
 triqs/version.hpp.in       |  7 ++++++
 5 files changed, 38 insertions(+), 27 deletions(-)
 create mode 100644 triqs/version.hpp.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index dbc6f238..929aa9b8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,7 +20,8 @@
 ###################################################################################
 
 #version number of the library
-set (TRIQS_VERSION "1.0.0")
+set (TRIQS_VERSION "1.0")
+set (TRIQS_RELEASE "1.0.0")
 
 # Path for local cmake modules
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
diff --git a/cmake/TRIQSConfig.cmake.in b/cmake/TRIQSConfig.cmake.in
index a98e522c..fd81a851 100644
--- a/cmake/TRIQSConfig.cmake.in
+++ b/cmake/TRIQSConfig.cmake.in
@@ -1,5 +1,6 @@
 # version
 set(TRIQS_VERSION @TRIQS_VERSION@)
+set(TRIQS_RELEASE @TRIQS_RELEASE@)
 set(TRIQS_GIT_HASH @TRIQS_GIT_HASH@)
 
 # definitions 
diff --git a/pytriqs/version.py.in b/pytriqs/version.py.in
index beb6739f..e2233233 100644
--- a/pytriqs/version.py.in
+++ b/pytriqs/version.py.in
@@ -1,28 +1,26 @@
+################################################################################
+#
+# TRIQS: a Toolbox for Research in Interacting Quantum Systems
+#
+# Copyright (C) 2011 by M. Ferrero, O. Parcollet
+#
+# TRIQS 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 of the License, or (at your option) any later
+# version.
+#
+# TRIQS 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
+# TRIQS. If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
 
-VersionNumber = "1.0"
-
-# if we use a git clone, then tag with the hash, else just the plain number 
-git_hash = "@GIT_HASH@"
-
-branch_info_all = [ b.strip()  for b in  """@GIT_BRANCHES@""".split('\n')]
-try : 
-    branch_info = [ b[1:].strip() for b in branch_info_all if b[0] == '*'][0]
-except : 
-    branch_info = ""
-
-revision = "branch = %s; commit = %s"%(branch_info, git_hash if git_hash else VersionNumber)
-
-def cmake_options() : 
-    return open ("@CMAKE_BINARY_DIR@/CMakeCache.txt").read()
-
-
-machine_info = """Code compiled on @myHostName@ under login @WhoAmI@ """
-
-all_info  =  """
-    Code revision : %s
-    %s
-    For all the configuration options, use cmake_options()
-    """%(revision,machine_info)
-
-greeting = """ Code revision : %s """%(revision)
+triqs_version = "@TRIQS_VERSION@"
+triqs_release = "@TRIQS_RELEASE@"
 
+def show_version():
+  print "\nYou are using the TRIQS library version %s, release %s\n"%(triqs_version, triqs_release)
diff --git a/triqs/CMakeLists.txt b/triqs/CMakeLists.txt
index b5dc6277..de12df52 100644
--- a/triqs/CMakeLists.txt
+++ b/triqs/CMakeLists.txt
@@ -24,6 +24,10 @@ target_link_libraries (triqs ${LINK_RT} ${TRIQS_LINK_LIBS}  )
 # Install library
 install(TARGETS triqs DESTINATION lib)
 
+# Version file
+configure_file(version.hpp.in version.hpp @ONLY)
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/version.hpp" DESTINATION "include/triqs/")
+
 # all .hpp files...
 FILE(GLOB_RECURSE ALLHEADERS RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.hpp)
 
diff --git a/triqs/version.hpp.in b/triqs/version.hpp.in
new file mode 100644
index 00000000..3ce0ea99
--- /dev/null
+++ b/triqs/version.hpp.in
@@ -0,0 +1,7 @@
+#ifndef TRIQS_VERSION_HPP
+#define TRIQS_VERSION_HPP
+
+#define TRIQS_VERSION "@TRIQS_VERSION@"
+#define TRIQS_RELEASE "@TRIQS_RELEASE@"
+
+#endif