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Buildsystem/CMake: Drop a FATAL_ERROR-message if the git binary is not found or outdated.

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Allow for it to be pointed to through the ADVANCED settings in the CMake GUI if the above is true.
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2013-02-11 01:56:25 +01:00
parent 1b4a610976
commit 2cf8cdaa80
1 changed files with 20 additions and 10 deletions
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30
cmake/genrev.cmake
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@@ -12,17 +12,23 @@ include(${CMAKE_SOURCE_DIR}/cmake/macros/EnsureVersion.cmake)
set(_REQUIRED_GIT_VERSION "1.7")
find_program(_GIT_EXEC
find_program(GIT_EXEC
NAMES
git git.cmd
HINTS
ENV PATH
DOC "git installation path"
DOC "Full path to git commandline client"
)
MARK_AS_ADVANCED(GIT_EXEC)
if(_GIT_EXEC)
if(NOT GIT_EXEC)
message(FATAL_ERROR "
Git was NOT FOUND on your system - did you forget to install a recent version, or setting the path to it?
Observe that for revision hash/date to work you need at least version ${_REQUIRED_GIT_VERSION}
")
else()
execute_process(
COMMAND "${_GIT_EXEC}" --version
COMMAND "${GIT_EXEC}" --version
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
OUTPUT_VARIABLE _GIT_VERSION
ERROR_QUIET
@@ -30,27 +36,31 @@ if(_GIT_EXEC)
# make sure we're using minimum the required version of git, so the "dirty-testing" will work properly
ensure_version( "${_REQUIRED_GIT_VERSION}" "${_GIT_VERSION}" _GIT_VERSION_OK)
# throw an error if we don't have a recent enough version of git...
if(NOT _GIT_VERSION_OK)
message(FATAL_ERROR "
Git was found but is OUTDATED - did you forget to install a recent version, or setting the path to it?
Observe that for revision hash/date to work you need at least version ${_REQUIRED_GIT_VERSION}
")
endif()
endif()
if(_GIT_VERSION_OK)
execute_process(
COMMAND "${_GIT_EXEC}" describe --match init --dirty=+ --abbrev=12
COMMAND "${GIT_EXEC}" describe --match init --dirty=+ --abbrev=12
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
OUTPUT_VARIABLE rev_info
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
execute_process(
COMMAND "${_GIT_EXEC}" show -s --format=%ci
COMMAND "${GIT_EXEC}" show -s --format=%ci
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
OUTPUT_VARIABLE rev_date
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
else()
message("")
message(STATUS "WARNING - Missing or outdated git - did you forget to install a recent version?")
message(STATUS "WARNING - Observe that for revision hash/date to work you need at least version ${_REQUIRED_GIT_VERSION}")
endif()
# Last minute check - ensure that we have a proper revision