43b5f0af2d
We wouldn't really have release branches, building will happen from annotated tags. Made it so building tag revision equals to a master branch.
150 lines
5.6 KiB
CMake
150 lines
5.6 KiB
CMake
# This is called by cmake as an extermal process from
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# ./source/creator/CMakeLists.txt to write ./source/creator/buildinfo.h
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# Extract working copy information for SOURCE_DIR into MY_XXX variables
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# with a default in case anything fails, for examble when using git-svn
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set(MY_WC_HASH "unknown")
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set(MY_WC_BRANCH "unknown")
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set(MY_WC_COMMIT_TIMESTAMP 0)
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# Guess if this is a SVN working copy and then look up the revision
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if(EXISTS ${SOURCE_DIR}/.git)
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# The FindGit.cmake module is part of the standard distribution
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include(FindGit)
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if(GIT_FOUND)
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message(STATUS "-- Found Git: ${GIT_EXECUTABLE}")
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execute_process(COMMAND git rev-parse --abbrev-ref HEAD
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE MY_WC_BRANCH
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(MY_WC_BRANCH STREQUAL "HEAD")
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# Detached HEAD, check whether commit hash is reachable
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# in the master branch
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execute_process(COMMAND git rev-parse --short HEAD
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE MY_WC_HASH
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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execute_process(COMMAND git branch --list master --contains ${MY_WC_HASH}
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE _git_contains_check
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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STRING(REGEX REPLACE "^[ \t]+" "" _git_contains_check "${_git_contains_check}")
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if(_git_contains_check STREQUAL "master")
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set(MY_WC_BRANCH "master")
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else()
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execute_process(COMMAND git show-ref --tags -d
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE _git_tag_hashes
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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execute_process(COMMAND git rev-parse HEAD
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE _git_head_hash
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(_git_tag_hashes MATCHES "${_git_head_hash}")
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set(MY_WC_BRANCH "master")
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endif()
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unset(_git_tag_hashes)
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unset(_git_head_hashs)
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endif()
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unset(_git_contains_check)
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else()
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execute_process(COMMAND git log HEAD..@{u}
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE _git_below_check
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(NOT _git_below_check STREQUAL "")
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# If there're commits between HEAD and upstream this means
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# that we're reset-ed to older revision. Use it's hash then.
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execute_process(COMMAND git rev-parse --short HEAD
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE MY_WC_HASH
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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else()
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execute_process(COMMAND git rev-parse --short @{u}
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE MY_WC_HASH
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_QUIET)
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if(MY_WC_HASH STREQUAL "")
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# Local branch, not set to upstream.
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# Well, let's use HEAD for now
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execute_process(COMMAND git rev-parse --short HEAD
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE MY_WC_HASH
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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endif()
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endif()
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unset(_git_below_check)
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endif()
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execute_process(COMMAND git log -1 --format=%ct
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE MY_WC_COMMIT_TIMESTAMP
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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# Update GIT index before getting dirty files
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execute_process(COMMAND git update-index -q --refresh
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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execute_process(COMMAND git diff-index --name-only HEAD --
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE _git_changed_files
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(NOT _git_changed_files STREQUAL "")
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set(MY_WC_BRANCH "${MY_WC_BRANCH} (modified)")
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else()
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# Unpushed commits are also considered local odifications
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execute_process(COMMAND git log @{u}..
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WORKING_DIRECTORY ${SOURCE_DIR}
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OUTPUT_VARIABLE _git_unpushed_log
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_QUIET)
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if(NOT _git_unpushed_log STREQUAL "")
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set(MY_WC_BRANCH "${MY_WC_BRANCH} (modified)")
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endif()
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unset(_git_unpushed_log)
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endif()
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unset(_git_changed_files)
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endif()
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endif()
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# BUILD_PLATFORM and BUILD_PLATFORM are taken from CMake
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# but BUILD_DATE and BUILD_TIME are plataform dependant
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if(UNIX)
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execute_process(COMMAND date "+%Y-%m-%d" OUTPUT_VARIABLE BUILD_DATE OUTPUT_STRIP_TRAILING_WHITESPACE)
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execute_process(COMMAND date "+%H:%M:%S" OUTPUT_VARIABLE BUILD_TIME OUTPUT_STRIP_TRAILING_WHITESPACE)
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endif()
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if(WIN32)
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execute_process(COMMAND cmd /c date /t OUTPUT_VARIABLE BUILD_DATE OUTPUT_STRIP_TRAILING_WHITESPACE)
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execute_process(COMMAND cmd /c time /t OUTPUT_VARIABLE BUILD_TIME OUTPUT_STRIP_TRAILING_WHITESPACE)
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endif()
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# Write a file with the SVNVERSION define
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file(WRITE buildinfo.h.txt
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"#define BUILD_HASH \"${MY_WC_HASH}\"\n"
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"#define BUILD_COMMIT_TIMESTAMP ${MY_WC_COMMIT_TIMESTAMP}\n"
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"#define BUILD_BRANCH \"${MY_WC_BRANCH}\"\n"
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"#define BUILD_DATE \"${BUILD_DATE}\"\n"
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"#define BUILD_TIME \"${BUILD_TIME}\"\n"
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)
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# Copy the file to the final header only if the version changes
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# and avoid needless rebuilds
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# TODO: verify this comment is true, as BUILD_TIME probably changes
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execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
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buildinfo.h.txt buildinfo.h)
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