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# Common settings for CGAL cmake scripts
if(CGAL_SCM_FILE_INCLUDED)
return()
endif()
set(CGAL_SCM_FILE_INCLUDED 1)
# CGAL_SCM_NAME can be either git or n/a as an indicator if we have a
# build system or not
# TODO: make that scm agnostic and turn it into a boolean
function(CGAL_detect_git GIT_PARENT_DIR)
set(GIT_DIR "${GIT_PARENT_DIR}/.git")
if (EXISTS "${GIT_DIR}")
set( CGAL_SCM_NAME "git" )
else()
while(NOT EXISTS "${GIT_DIR}") # .git dir not found, search parent directories
set(GIT_PREVIOUS_PARENT "${GIT_PARENT_DIR}")
get_filename_component(GIT_PARENT_DIR ${GIT_PARENT_DIR} PATH)
if( "${GIT_PARENT_DIR}" STREQUAL "${GIT_PREVIOUS_PARENT}" )
# We have reached the root directory, we are not in git
set( _refspecvar "GITDIR-NOTFOUND" )
set( _hashvar "GITDIR-NOTFOUND" )
set( CGAL_SCM_NAME "n/a" )
break()
else()
set( GIT_DIR "${GIT_PARENT_DIR}/.git" )
set( CGAL_SCM_NAME "git" )
endif()
endwhile()
endif()
# backward compatible
set( CGAL_CREATED_SVN_REVISION "99999" )
# Retrieve values that may have been stored in global properties
get_property( CGAL_SCM_BRANCH_NAME GLOBAL PROPERTY CGAL_SCM_BRANCH_NAME)
get_property( CGAL_CREATED_GIT_HASH GLOBAL PROPERTY CGAL_CREATED_GIT_HASH)
if ( "${CGAL_SCM_NAME}" STREQUAL "git" )
if(NOT CGAL_SCM_BRANCH_NAME AND NOT CGAL_CREATED_GIT_HASH )
find_program(GIT_EXECUTABLE git DOC "git command line client")
execute_process(COMMAND ${GIT_EXECUTABLE} --git-dir=${GIT_DIR} rev-parse --symbolic --abbrev-ref HEAD
OUTPUT_VARIABLE CGAL_GIT_BRANCH
OUTPUT_STRIP_TRAILING_WHITESPACE)
set( CGAL_SCM_BRANCH_NAME "${CGAL_GIT_BRANCH}" )
execute_process(COMMAND ${GIT_EXECUTABLE} --git-dir=${GIT_DIR} rev-parse HEAD
OUTPUT_VARIABLE CGAL_CREATED_GIT_HASH
OUTPUT_STRIP_TRAILING_WHITESPACE)
endif()
else()
set( CGAL_SCM_BRANCH_NAME "n/a" )
set( CGAL_CREATED_GIT_HASH "n/a" )
endif()
# export the variables to PARENT_SCOPE
set( CGAL_SCM_NAME ${CGAL_SCM_NAME} PARENT_SCOPE )
set( CGAL_SCM_BRANCH_NAME ${CGAL_SCM_BRANCH_NAME} PARENT_SCOPE )
set( CGAL_CREATED_GIT_HASH ${CGAL_CREATED_GIT_HASH} PARENT_SCOPE )
set( CGAL_CREATED_SVN_REVISION ${CGAL_CREATED_SVN_REVISION} PARENT_SCOPE )
# Store those values in global properties
set_property( GLOBAL PROPERTY CGAL_SCM_BRANCH_NAME ${CGAL_SCM_BRANCH_NAME} )
set_property( GLOBAL PROPERTY CGAL_CREATED_GIT_HASH ${CGAL_CREATED_GIT_HASH} )
endfunction()
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