From 2cf64e10b51579d0bb1d270f82c4fdebf92a6ce6 Mon Sep 17 00:00:00 2001
From: Florent Le Coz <louiz@louiz.org>
Date: Tue, 24 Jun 2014 17:45:50 +0200
Subject: Provide a make dist target

---
 CMakeLists.txt | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 947e8fe..a33fffe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,16 +27,22 @@ find_package(Botan)
 #
 ## Get the software version
 #
-if(${PROJECT_NAME}_VERSION_SUFFIX MATCHES "~dev")
+set(ARCHIVE_NAME ${CMAKE_PROJECT_NAME}-${${PROJECT_NAME}_VERSION_MAJOR}.${${PROJECT_NAME}_VERSION_MINOR})
+if(${PROJECT_NAME}_VERSION_SUFFIX MATCHES ".+")
+  set(ARCHIVE_NAME ${ARCHIVE_NAME}-${${PROJECT_NAME}_VERSION_SUFFIX})
+endif()
+
+if(${PROJECT_NAME}_VERSION_SUFFIX MATCHES "^~dev$")
   # If we are on a dev version, append the hash of the current git HEAD to
   # the version
   include(FindGit)
-  if(GIT_FOUND)
+  if(GIT_FOUND AND EXISTS "${CMAKE_SOURCE_DIR}/.git")
     execute_process(COMMAND git --git-dir=${CMAKE_SOURCE_DIR}/.git rev-parse --short HEAD
       OUTPUT_VARIABLE GIT_REVISION
       OUTPUT_STRIP_TRAILING_WHITESPACE)
     if(GIT_REVISION)
       set(${PROJECT_NAME}_VERSION_SUFFIX "${${PROJECT_NAME}_VERSION_SUFFIX} (${GIT_REVISION})")
+      set(ARCHIVE_NAME ${ARCHIVE_NAME}-${GIT_REVISION})
     endif()
   endif()
 endif()
@@ -193,4 +199,13 @@ install(TARGETS ${PROJECT_NAME}
   RUNTIME DESTINATION bin)
 if(WITH_DOC)
   install(FILES ${MAN_PAGE} DESTINATION man/man1)
-endif()
\ No newline at end of file
+endif()
+
+#
+## Dist target
+## Generate a release tarball from the git sources
+#
+add_custom_target(dist
+  COMMAND git archive --prefix=${ARCHIVE_NAME}/ --format=tar HEAD
+  | xz > ${CMAKE_CURRENT_BINARY_DIR}/${ARCHIVE_NAME}.tar.xz
+  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
\ No newline at end of file
-- 
cgit v1.2.3