From 209bf80b40a2929de20b02c6ad4e7d2a865019ed Mon Sep 17 00:00:00 2001
From: Emmanuel Christophe <emmanuel.christophe@orfeo-toolbox.org>
Date: Wed, 5 May 2010 16:52:24 +0800
Subject: [PATCH] ENH: add mercurial versionning capabilities
---
CMake/FindMercurial.cmake | 69 +++++++++++++++++++++++++++++++++++++++
CMakeLists.txt | 15 ++++++---
2 files changed, 80 insertions(+), 4 deletions(-)
create mode 100644 CMake/FindMercurial.cmake
diff --git a/CMake/FindMercurial.cmake b/CMake/FindMercurial.cmake
new file mode 100644
index 0000000000..befc72385f
--- /dev/null
+++ b/CMake/FindMercurial.cmake
@@ -0,0 +1,69 @@
+# - Extract information from a mercurial working copy
+
+# Example usage:
+# FIND_PACKAGE(Mercurial)
+# IF(Mercurial_FOUND)
+# Mercurial_WC_IDENTIFY(${PROJECT_SOURCE_DIR} Project)
+# MESSAGE("Current revision is ${Project_WC_REVISION}")
+# MESSAGE("Mercurial version is ${Mercurial_VERSION_HG}")
+# ENDIF(Mercurial_FOUND)
+
+
+SET(Mercurial_FOUND FALSE)
+SET(Mercurial_HG_FOUND FALSE)
+
+FIND_PROGRAM(Mercurial_HG_EXECUTABLE hg
+ DOC "mercurial command line client")
+MARK_AS_ADVANCED(Mercurial_HG_EXECUTABLE)
+
+IF(Mercurial_HG_EXECUTABLE)
+ SET(Mercurial_HG_FOUND TRUE)
+ SET(Mercurial_FOUND TRUE)
+
+ MACRO(Mercurial_WC_IDENTIFY dir prefix)
+ # the subversion commands should be executed with the C locale, otherwise
+ # the message (which are parsed) may be translated, Alex
+ SET(_Mercurial_SAVED_LC_ALL "$ENV{LC_ALL}")
+ SET(ENV{LC_ALL} C)
+ EXECUTE_PROCESS(COMMAND ${Mercurial_HG_EXECUTABLE} version
+ WORKING_DIRECTORY ${dir}
+ OUTPUT_VARIABLE Mercurial_VERSION_HG
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+ EXECUTE_PROCESS(COMMAND ${Mercurial_HG_EXECUTABLE} identify ${dir}
+ OUTPUT_VARIABLE ${prefix}_WC_IDENTIFY
+ ERROR_VARIABLE Mercurial_hg_identify_error
+ RESULT_VARIABLE Mercurial_hg_identify_result
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+ IF(NOT ${Mercurial_hg_identify_result} EQUAL 0)
+ MESSAGE(SEND_ERROR "Command \"${Mercurial_HG_EXECUTABLE} identify ${dir}\" failed with output:\n${Mercurial_hg_identify_error}")
+ ELSE(NOT ${Mercurial_hg_identify_result} EQUAL 0)
+
+ STRING(REGEX REPLACE "^(.*\n)?Mercurial Distributed SCM [(]version ([.0-9]+).*"
+ "\\2" Mercurial_VERSION_HG "${Mercurial_VERSION_HG}")
+ STRING(REGEX REPLACE "^(.*\n)?([0-9a-f]+).*"
+ "\\2" ${prefix}_WC_REVISION "${${prefix}_WC_IDENTIFY}")
+
+ ENDIF(NOT ${Mercurial_hg_identify_result} EQUAL 0)
+
+ # restore the previous LC_ALL
+ SET(ENV{LC_ALL} ${_Mercurial_SAVED_LC_ALL})
+
+ ENDMACRO(Mercurial_WC_IDENTIFY)
+
+
+
+ENDIF(Mercurial_HG_EXECUTABLE)
+
+
+
+IF(NOT Mercurial_FOUND)
+ IF(NOT Mercurial_FIND_QUIETLY)
+ MESSAGE(STATUS "Mercurial was not found.")
+ ELSE(NOT Mercurial_FIND_QUIETLY)
+ IF(Mercurial_FIND_REQUIRED)
+ MESSAGE(FATAL_ERROR "Mercurial was not found.")
+ ENDIF(Mercurial_FIND_REQUIRED)
+ ENDIF(NOT Mercurial_FIND_QUIETLY)
+ENDIF(NOT Mercurial_FOUND)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f7a855b680..59d3da33f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -70,10 +70,17 @@ SET(OTB_VERSION_MAJOR "3")
SET(OTB_VERSION_MINOR "2")
SET(OTB_VERSION_PATCH "1")
-
-# Version string should not include patch level. The major.minor is
-# enough to distinguish available features of the toolkit.
-SET(OTB_VERSION_STRING "${OTB_VERSION_MAJOR}.${OTB_VERSION_MINOR}.${OTB_VERSION_PATCH}")
+FIND_PACKAGE(Mercurial)
+IF(Mercurial_FOUND)
+ Mercurial_WC_IDENTIFY(${PROJECT_SOURCE_DIR} OTB)
+ MESSAGE("Mercurial version is ${Mercurial_VERSION_HG}")
+ MESSAGE("Repository revision is ${Project_WC_REVISION}")
+ SET(OTB_VERSION_STRING "${OTB_VERSION_MAJOR}.${OTB_VERSION_MINOR}.${OTB_VERSION_PATCH}.${Project_WC_REVISION}")
+ELSE(Mercurial_FOUND)
+ # Version string should not include patch level. The major.minor is
+ # enough to distinguish available features of the toolkit.
+ SET(OTB_VERSION_STRING "${OTB_VERSION_MAJOR}.${OTB_VERSION_MINOR}.${OTB_VERSION_PATCH}")
+ENDIF(Mercurial_FOUND)
OPTION(BUILD_TESTING "Build testing." OFF)
--
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