LookingGlass/version.cmake

execute_process(
	COMMAND git describe --always --abbrev=10 --dirty=+ --tags
	WORKING_DIRECTORY "${PROJECT_TOP}"
        OUTPUT_VARIABLE GIT_REV
        ERROR_QUIET)

if ("${GIT_REV}" STREQUAL "")
	if (EXISTS ${PROJECT_TOP}/VERSION)
		file(READ ${PROJECT_TOP}/VERSION GIT_REV)
	else()
		set(GIT_REV "UNKNOWN")
	endif()
endif()

string(STRIP "${GIT_REV}" GIT_VERSION)
set(BUILD_VERSION "const char * BUILD_VERSION = \"${GIT_VERSION}\";")

if(EXISTS "${CMAKE_BINARY_DIR}/version.c")
	file(READ ${CMAKE_BINARY_DIR}/version.c BUILD_VERSION_)
else()
	set(BUILD_VERSION_ "")
endif()

if (NOT "${BUILD_VERSION}" STREQUAL "${BUILD_VERSION_}")
	file(WRITE ${CMAKE_BINARY_DIR}/version.c "${BUILD_VERSION}")
	file(WRITE ${CMAKE_BINARY_DIR}/VERSION   "${GIT_VERSION}")
endif()
[all] set the working directory for git versioning commands 2020-10-08 15:54:36 +00:00			`execute_process(`
[cmake] remove --long from version.cmake This means if someone checks out a tagged revision, the extra commit N and commit hash are removed from the VERSION, leaving just the tag name Adding any commits will cause -<commitssince>-g<commithash> to return. The dirty worktree '+' still functions as normal, simply appended to the end of the tag name, like 'v1.0.3+'. With both extra commits and a dirty worktree, it will look like 'v1.0.3-2-gd6e00e4f34a+', as usual. 2020-12-08 16:31:54 +00:00			`COMMAND git describe --always --abbrev=10 --dirty=+ --tags`
[all] set the working directory for git versioning commands 2020-10-08 15:54:36 +00:00			`WORKING_DIRECTORY "${PROJECT_TOP}"`
			`OUTPUT_VARIABLE GIT_REV`
			`ERROR_QUIET)`
[all] be smarter about getting the git version 2020-10-08 15:17:20 +00:00
[cmake] replace git diff logic with git describe --dirty The --dirty argument of git describe performs the same function as the now-removed git diff logic. It will add its argument (default '-dirty') to the end of the revision. Providing '+' as the argument replicates old behavior. 2020-12-08 16:00:40 +00:00			`if ("${GIT_REV}" STREQUAL "")`
[all] be smarter about getting the git version 2020-10-08 15:17:20 +00:00			`if (EXISTS ${PROJECT_TOP}/VERSION)`
[all] more versioning fixes 2020-10-08 16:09:45 +00:00			`file(READ ${PROJECT_TOP}/VERSION GIT_REV)`
[all] be smarter about getting the git version 2020-10-08 15:17:20 +00:00			`else()`
[all] more versioning fixes 2020-10-08 16:09:45 +00:00			`set(GIT_REV "UNKNOWN")`
[all] be smarter about getting the git version 2020-10-08 15:17:20 +00:00			`endif()`
			`endif()`

[cmake] replace git diff logic with git describe --dirty The --dirty argument of git describe performs the same function as the now-removed git diff logic. It will add its argument (default '-dirty') to the end of the revision. Providing '+' as the argument replicates old behavior. 2020-12-08 16:00:40 +00:00			`string(STRIP "${GIT_REV}" GIT_VERSION)`
[all] more versioning fixes 2020-10-08 16:09:45 +00:00			`set(BUILD_VERSION "const char * BUILD_VERSION = \"${GIT_VERSION}\";")`

			`if(EXISTS "${CMAKE_BINARY_DIR}/version.c")`
			`file(READ ${CMAKE_BINARY_DIR}/version.c BUILD_VERSION_)`
			`else()`
			`set(BUILD_VERSION_ "")`
			`endif()`

			`if (NOT "${BUILD_VERSION}" STREQUAL "${BUILD_VERSION_}")`
			`file(WRITE ${CMAKE_BINARY_DIR}/version.c "${BUILD_VERSION}")`
			`file(WRITE ${CMAKE_BINARY_DIR}/VERSION "${GIT_VERSION}")`
[all] be smarter about getting the git version 2020-10-08 15:17:20 +00:00			`endif()`