Laurent Rineau
291b3029bb
If the current working directory is a checkout of a commit that is not a
branch, for example, a commit in the ancestors of a branch, then CGAL CMake
scripts gave that CMake error:
== CMake setup ==
fatal: ref HEAD is not a symbolic ref
CMake Error at Installation/cmake/modules/CGAL_SCM.cmake:36 (string):
string sub-command REGEX, mode REPLACE needs at least 6 arguments total to
command.
Call Stack (most recent call first):
CMakeLists.txt:17 (include)
== CMake setup (DONE) ==
This patch fixes the error. If HEAD is not a branch, then CGAL_GIT_BRANCH
is equal to "HEAD".
51 lines
1.6 KiB
CMake
51 lines
1.6 KiB
CMake
# Common settings for CGAL cmake scripts
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if( NOT CGAL_SCM_FILE_INCLUDED )
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set(CGAL_SCM_FILE_INCLUDED 1 )
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# CGAL_SCM_NAME can be either git or n/a as an indicator if we have a
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# build system or not
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# TODO: make that scm agnostic and turn it into a boolean
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set(GIT_PARENT_DIR "${CMAKE_SOURCE_DIR}")
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set(GIT_DIR "${GIT_PARENT_DIR}/.git")
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if (EXISTS "${GIT_DIR}")
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set( CGAL_SCM_NAME "git" )
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else()
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while(NOT EXISTS "${GIT_DIR}") # .git dir not found, search parent directories
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set(GIT_PREVIOUS_PARENT "${GIT_PARENT_DIR}")
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get_filename_component(GIT_PARENT_DIR ${GIT_PARENT_DIR} PATH)
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if( "${GIT_PARENT_DIR}" STREQUAL "${GIT_PREVIOUS_PARENT}" )
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# We have reached the root directory, we are not in git
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set( _refspecvar "GITDIR-NOTFOUND" )
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set( _hashvar "GITDIR-NOTFOUND" )
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set( CGAL_SCM_NAME "n/a" )
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break()
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else()
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set( GIT_DIR "${GIT_PARENT_DIR}/.git" )
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set( CGAL_SCM_NAME "git" )
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endif()
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endwhile()
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endif()
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if ( "${CGAL_SCM_NAME}" STREQUAL "git" )
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find_program(GIT_EXECUTABLE git DOC "git command line client")
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execute_process(COMMAND ${GIT_EXECUTABLE} --git-dir=${GIT_DIR} rev-parse --symbolic --abbrev-ref HEAD
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OUTPUT_VARIABLE CGAL_GIT_BRANCH
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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set( CGAL_SCM_BRANCH_NAME "${CGAL_GIT_BRANCH}" )
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execute_process(COMMAND ${GIT_EXECUTABLE} --git-dir=${GIT_DIR} rev-parse HEAD
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OUTPUT_VARIABLE CGAL_GIT_HASH
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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# backward compatible
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set( CGAL_CREATED_SVN_REVISION "99999" )
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else()
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set( CGAL_SCM_BRANCH_NAME "n/a")
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set( CGAL_CREATED_GIT_HASH "n/a" )
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set( CGAL_CREATED_SVN_REVISION "n/a" )
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endif()
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endif()
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