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Add new shared_git_project module for cmake.

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King_DuckZ 2016-07-14 14:05:19 +01:00
parent dc814b4d09
commit 3edb83dce3
2 changed files with 88 additions and 1 deletions
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3
CMakeLists.txt
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@ -21,6 +21,7 @@ include(gccversion)
include(CPack)
include(CTest)
include(timestamp)
include(shared_git_project)
option(DINDEXER_DEBUG_CFG_FILE "Enable to set the config file path to the build path" OFF)
option(DINDEXER_WITH_MEDIA_AUTODETECT "Enable code that tries to autodetect the media type and sets --type automatically" ON)
@ -143,7 +144,7 @@ add_subdirectory(src/tag)
#Tests
if (BUILD_TESTING)
add_subdirectory(test/gtest)
add_shared_git_project(test/gtest)
add_subdirectory(test/unit)
add_subdirectory(test/unit_cli)
endif()

86
cmake/Modules/shared_git_project.cmake Normal file
View file

@ -0,0 +1,86 @@
cmake_minimum_required(VERSION 2.8.12.2 FATAL_ERROR)
function (add_shared_git_project SUBMODULE_PATH)
if (IS_ABSOLUTE "${SUBMODULE_PATH}")
set(submod_path "${SUBMODULE_PATH}")
else()
set(submod_path "${CMAKE_CURRENT_SOURCE_DIR}/${SUBMODULE_PATH}")
endif()
if (NOT EXISTS "${submod_path}")
message(FATAL_ERROR "Path \"${submod_path}\" doesn't exist")
endif()
if (NOT IS_DIRECTORY "${submod_path}")
message(FATAL_ERROR "Path \"${submod_path}\" is not a valid directory")
endif()
if (NOT EXISTS "${submod_path}/.git")
message(FATAL_ERROR ".git not found in \"${submod_path}\". Not a git submodule?")
endif()
if (IS_DIRECTORY "${submod_path}/.git")
message(FATAL_ERROR "\"${submod_path}.git\" is a directory, not a file as expected. Not a git submodule?")
endif()
get_filename_component(proj_name_orig "${submod_path}" NAME)
if ("${proj_name_orig}" STREQUAL "")
message(FATAL_ERROR "Couldn't make up a name for given project in \"${submod_path}\"")
endif()
string(MAKE_C_IDENTIFIER "${submod_path}" proj_name_c_id)
string(TOUPPER ${proj_name_c_id} proj_name)
get_property(shared_projects_list GLOBAL PROPERTY SHARED_PROJECTS_LIST)
list(FIND shared_projects_list ${proj_name} found_index)
if (${found_index} GREATER -1)
#nothing to do, the variable is already set so the project must have been
#included already
return()
endif()
#Obtain the path to the working tree
# see http://stackoverflow.com/questions/27379818/git-possible-to-use-same-submodule-working-copy-by-multiple-projects
# git rev-parse --git-dir --show-toplevel
execute_process(
COMMAND git rev-parse --show-toplevel
WORKING_DIRECTORY "${submod_path}"
OUTPUT_VARIABLE matched_gitdir
OUTPUT_STRIP_TRAILING_WHITESPACE
)
#Make sure we got an absolute path
if (IS_ABSOLUTE "${matched_gitdir}")
set(reported_submodule_dir "${matched_gitdir}")
else()
file(RELATIVE_PATH reported_submodule_dir "${CMAKE_CURRENT_SOURCE_DIR}" "${submod_path}/${matched_gitdir}")
endif()
unset(matched_gitdir)
#Check if submodule is a subdirectory of the current source dir
file(RELATIVE_PATH reported_submodule_rel_path "${CMAKE_CURRENT_SOURCE_DIR}" "${reported_submodule_dir}")
string(LENGTH "${reported_submodule_rel_path}" rel_path_len)
message(STATUS "\"${reported_submodule_rel_path}\" - ${rel_path_len}")
if (${rel_path_len} GREATER 2)
string(SUBSTRING reported_submodule_rel_path 0 3 first_bit)
if ("../" STREQUAL "${first_bit}")
set(is_out_of_dirtree ON)
else()
set(is_out_of_dirtree OFF)
endif()
unset(first_bit)
else()
set(is_out_of_dirtree OFF)
endif()
unset(rel_path_len)
#Globally mark current submodule as handled
set_property(GLOBAL APPEND PROPERTY SHARED_PROJECTS_LIST ${proj_name})
set(shared_project_binary "${CMAKE_CURRENT_BINARY_DIR}/shared_projects/${proj_name_orig}")
if (is_out_of_dirtree)
#message("Would call add_subdirectory(\"${reported_submodule_dir}\" \"${shared_project_binary}\")")
add_subdirectory("${reported_submodule_dir}" "${shared_project_binary}")
else()
#message("Would call add_subdirectory(\"${reported_submodule_rel_path}\")")
add_subdirectory("${reported_submodule_rel_path}")
endif()
endfunction()