andre@0: # Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
andre@0: # Software engineering by Intevation GmbH
andre@0: #
andre@0: # This file is Free Software under the GNU GPL (v>=2)
andre@0: # and comes with ABSOLUTELY NO WARRANTY!
andre@0: # See LICENSE.txt for details.
andre@0: 
andre@0: # This makes some variables available to generate a nice version number for
andre@0: # hg managed repositories.
andre@0: # It sets HG_REVISION_TAG to the value of the latest tag
andre@0: # HG_REVISION_DIST to the differences between the tag and the current tip
andre@0: # HG_REVISION_ID to the actual revision
andre@0: # based on code found in the lemon graph library https://lemon.cs.elte.hu
andre@0: # HG_REVISON to a nice combination of those.
andre@0: find_package(Hg)
andre@0: if (HG_FOUND)
andre@0:   EXECUTE_PROCESS(
andre@0:     COMMAND
andre@0:     hg log -r. --template "{latesttag}"
andre@0:     WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
andre@0:     OUTPUT_VARIABLE HG_REVISION_TAG
andre@0:     ERROR_QUIET
andre@0:     OUTPUT_STRIP_TRAILING_WHITESPACE
andre@0:   )
andre@0:   EXECUTE_PROCESS(
andre@0:     COMMAND
andre@0:     hg log -r. --template "{latesttagdistance}"
andre@0:     WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
andre@0:     OUTPUT_VARIABLE HG_REVISION_DIST
andre@0:     ERROR_QUIET
andre@0:     OUTPUT_STRIP_TRAILING_WHITESPACE
andre@0:   )
andre@0:   EXECUTE_PROCESS(
andre@0:     COMMAND
andre@0:     hg log -r. --template "{node|short}"
andre@0:     WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
andre@0:     OUTPUT_VARIABLE HG_REVISION_ID
andre@0:     ERROR_QUIET
andre@0:     OUTPUT_STRIP_TRAILING_WHITESPACE
andre@0:   )
andre@0: 
andre@0:   IF(HG_REVISION_TAG STREQUAL "")
andre@0:     SET(HG_REVISION_ID "hg-tip")
andre@0:   ELSE()
andre@0:     IF(HG_REVISION_TAG STREQUAL "null")
andre@0:       SET(HG_REVISION_TAG "trunk")
andre@0:     ELSEIF(HG_REVISION_TAG MATCHES "^r")
andre@0:       STRING(SUBSTRING ${HG_REVISION_TAG} 1 -1 HG_REVISION_TAG)
andre@0:     ENDIF()
andre@0:     IF(HG_REVISION_DIST STREQUAL "0")
andre@0:       SET(HG_REVISION ${HG_REVISION_TAG})
andre@0:     ELSE()
andre@0:       SET(HG_REVISION
andre@0:         "${HG_REVISION_TAG}+${HG_REVISION_DIST}-${HG_REVISION_ID}")
andre@0:     ENDIF()
andre@0:   ENDIF()
andre@0: ENDIF()