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fix: check if git top-level directory matches CMake project source (#3156)

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Valentino Berta 2024-09-14 06:13:56 -03:00 committed by GitHub
parent e7cf47de71
commit a66c5fd91b
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1 changed files with 30 additions and 9 deletions
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39
CMakeLists.txt
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@ -8,20 +8,41 @@ project(polybar CXX)
# a version string is used, so the file supports comments
file(STRINGS version.txt version_txt REGEX "^[0-9]+\\.[0-9]+\\.[0-9]+.*$" LIMIT_COUNT 1)
# If we are in a git repo we can get the version information from git describe
execute_process(COMMAND git describe --tags --dirty=-dev
execute_process(COMMAND git rev-parse --show-toplevel
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
RESULT_VARIABLE git_result
OUTPUT_VARIABLE git_describe
RESULT_VARIABLE git_top_dir_result
OUTPUT_VARIABLE git_top_dir
OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_QUIET)
if(git_result EQUAL "0")
set(APP_VERSION "${git_describe}")
else()
message(STATUS "Could not detect version with git, falling back to built-in version information.")
set(APP_VERSION "${version_txt}")
# Set fallback first, override if more information (from git) is found
set(APP_VERSION "${version_txt}")
# Prevent formatting errors & resolve symlinks (REALPATH)
get_filename_component(resolved_project_source_dir ${PROJECT_SOURCE_DIR} REALPATH)
if(NOT ("${git_top_dir}" STREQUAL ""))
get_filename_component(git_top_dir ${git_top_dir} REALPATH)
endif()
if(git_top_dir_result EQUAL "0" AND git_top_dir STREQUAL resolved_project_source_dir)
# If we are in a git repo we can get the version information from git describe
execute_process(COMMAND git describe --tags --dirty=-dev
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
RESULT_VARIABLE git_describe_result
OUTPUT_VARIABLE git_describe
OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_QUIET)
if(git_describe_result EQUAL "0")
set(APP_VERSION "${git_describe}")
else()
message(STATUS "Could not detect version with git, falling back to built-in version information.")
endif()
else()
message(STATUS "CMake and git directory mismatch, falling back to built-in version information.") # Assuming that if git rev-parse doesn't return 0, git describe won't either
endif()
# Set the default installation prefix to /usr
# Otherwise the default value is /usr/local which causes the default config
# file to be installed to /usr/local/etc, with /usr, cmake has special handling