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Don't allow to look above CMAKE_CURRENT_SOURCE_DIR to support gitrepo. Fix a regexp.

This commit is contained in:
levlam 2022-07-10 19:07:15 +03:00
parent be18035b5d
commit 954444e692
1 changed files with 10 additions and 27 deletions
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37
CMake/GetGitRevisionDescription.cmake
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@ -3,17 +3,7 @@
# These functions force a re-configure on each git commit so that you can
# trust the values of the variables in your build system.
#
# get_git_head_revision(<refspecvar> <hashvar> [ALLOW_LOOKING_ABOVE_CMAKE_SOURCE_DIR])
#
# Returns the results of git describe --exact-match on the source tree,
# and adjusting the output so that it tests false if there was no exact
# matching tag.
#
# git_local_changes(<var>)
#
# Returns either "CLEAN" or "DIRTY" with respect to uncommitted changes.
# Uses the return code of "git diff-index --quiet HEAD --".
# Does not regard untracked files.
# get_git_head_revision(<refspecvar> <hashvar>)
#
# Requires CMake 2.6 or newer (uses the 'function' command)
#
@ -68,17 +58,10 @@ endfunction()
function(get_git_head_revision _refspecvar _hashvar)
_git_find_closest_git_dir("${CMAKE_CURRENT_SOURCE_DIR}" GIT_DIR)
if ("${ARGN}" STREQUAL "ALLOW_LOOKING_ABOVE_CMAKE_SOURCE_DIR")
set(ALLOW_LOOKING_ABOVE_CMAKE_SOURCE_DIR TRUE)
else()
set(ALLOW_LOOKING_ABOVE_CMAKE_SOURCE_DIR FALSE)
endif()
if (NOT "${GIT_DIR}" STREQUAL "")
file(RELATIVE_PATH _relative_to_source_dir "${CMAKE_SOURCE_DIR}" "${GIT_DIR}")
if ("${_relative_to_source_dir}" MATCHES "[.][.]" AND NOT ALLOW_LOOKING_ABOVE_CMAKE_SOURCE_DIR)
# We've gone above the CMake root dir.
set(GIT_DIR "")
endif()
file(RELATIVE_PATH _relative_to_source_dir "${CMAKE_CURRENT_SOURCE_DIR}" "${GIT_DIR}")
if ("${_relative_to_source_dir}" MATCHES "^[.][.]")
# We've gone above the CMake root dir.
set(GIT_DIR "")
endif()
if ("${GIT_DIR}" STREQUAL "")
set(${_refspecvar} "GITDIR-NOTFOUND" PARENT_SCOPE)
@ -101,7 +84,7 @@ function(get_git_head_revision _refspecvar _hashvar)
OUTPUT_VARIABLE out
ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
if (NOT "${out}" STREQUAL "")
# If out is empty, GIT_DIR/CMAKE_CURRENT_SOURCE_DIR is in a submodule
# If out is non-empty, GIT_DIR/CMAKE_CURRENT_SOURCE_DIR is in a submodule
file(READ ${GIT_DIR} submodule)
string(REGEX REPLACE "gitdir: (.*)$" "\\1" GIT_DIR_RELATIVE ${submodule})
string(STRIP ${GIT_DIR_RELATIVE} GIT_DIR_RELATIVE)
@ -121,14 +104,14 @@ function(get_git_head_revision _refspecvar _hashvar)
else()
set(HEAD_SOURCE_FILE "${GIT_DIR}/HEAD")
endif()
if (NOT EXISTS "${HEAD_SOURCE_FILE}")
return()
endif()
set(GIT_DATA "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/git-data")
if (NOT EXISTS "${GIT_DATA}")
file(MAKE_DIRECTORY "${GIT_DATA}")
endif()
if (NOT EXISTS "${HEAD_SOURCE_FILE}")
return()
endif()
set(HEAD_FILE "${GIT_DATA}/HEAD")
configure_file("${HEAD_SOURCE_FILE}" "${HEAD_FILE}" COPYONLY)