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Don't recurse the whole tree looking for a git dir, use PROJECT_SOURCE_DIR

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Hannah von Reth 2020-11-23 13:04:45 +01:00 committed by Kevin Ottens
parent 0eb8b01f0a
commit dc42ebb793
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GPG key ID: 074BBBCB8DECC9E2
1 changed files with 6 additions and 20 deletions
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26
cmake/modules/GetGitRevisionDescription.cmake
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@ -40,26 +40,12 @@ set(__get_git_revision_description YES)
get_filename_component(_gitdescmoddir ${CMAKE_CURRENT_LIST_FILE} PATH)
function(get_git_head_revision _refspecvar _hashvar)
set(GIT_PARENT_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
set(GIT_DIR "${GIT_PARENT_DIR}/.git")
while(NOT EXISTS "${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" PARENT_SCOPE)
set(${_hashvar} "GITDIR-NOTFOUND" PARENT_SCOPE)
return()
endif()
set(GIT_DIR "${GIT_PARENT_DIR}/.git")
endwhile()
# check if this is a submodule
if(NOT IS_DIRECTORY ${GIT_DIR})
file(READ ${GIT_DIR} submodule)
string(REGEX REPLACE "gitdir: (.*)\n$" "\\1" GIT_DIR_RELATIVE ${submodule})
get_filename_component(SUBMODULE_DIR ${GIT_DIR} PATH)
get_filename_component(GIT_DIR ${SUBMODULE_DIR}/${GIT_DIR_RELATIVE} ABSOLUTE)
endif()
set(GIT_DIR "${PROJECT_SOURCE_DIR}/.git")
if (NOT EXISTS "${GIT_DIR}") # .git dir not found, search parent directories
set(${_hashvar} "GITDIR-NOTFOUND" PARENT_SCOPE)
set(${_refspecvar} "GITDIR-NOTFOUND" PARENT_SCOPE)
return()
endif()
set(GIT_DATA "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/git-data")
if(NOT EXISTS "${GIT_DATA}")
file(MAKE_DIRECTORY "${GIT_DATA}")