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324 lines
9.3 KiB
324 lines
9.3 KiB
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# Copyright (C) 2011-2020 Daniel Scharrer |
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# |
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# This software is provided 'as-is', without any express or implied |
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# warranty. In no event will the author(s) be held liable for any damages |
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# arising from the use of this software. |
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# |
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# Permission is granted to anyone to use this software for any purpose, |
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# including commercial applications, and to alter it and redistribute it |
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# freely, subject to the following restrictions: |
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# |
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# 1. The origin of this software must not be misrepresented; you must not |
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# claim that you wrote the original software. If you use this software |
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# in a product, an acknowledgment in the product documentation would be |
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# appreciated but is not required. |
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# 2. Altered source versions must be plainly marked as such, and must not be |
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# misrepresented as being the original software. |
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# 3. This notice may not be removed or altered from any source distribution. |
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get_filename_component(VERSION_SCRIPT_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH) |
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set(VERSION_STRING_SCRIPT "${VERSION_SCRIPT_DIR}/VersionScript.cmake") |
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# Create a rule to generate a version string at compile time. |
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# |
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# An optional fifth argument can be used to add additional cmake defines. |
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# |
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# SRC is processed using the configure_file() cmake command |
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# at build to produce DST with the following variable available: |
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# |
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# VERSION_SOURCES: |
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# List of (${var} ${file}) pairs. |
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# |
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# for each variable ${var} |
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# - ${var}: The contents of the associated file |
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# - ${var}_COUNT: Number of lines in the associated file |
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# - For each line ${i}: |
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# - ${var}_${i}: The ${i}-th line of the associated file |
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# - ${var}_${i}_PREFIX: The first component in the line |
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# - ${var}_${i}_LINE: Everything except the first component of the line |
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# - ${var}_${i}_NAME: Everything except the last component of the line |
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# - ${var}_${i}_STRING: The last component (excluding optional suffix) of the line |
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# - ${var}_${i}_SUFFIX: Suffix (separated by " + ") of the line |
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# - ${var}_${i}_MAJOR: First version component in ${var}_${i}_STRING |
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# - ${var}_${i}_MINOR: Second version component in ${var}_${i}_STRING |
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# - ${var}_${i}_PATCH: Third version component in ${var}_${i}_STRING |
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# - ${var}_${i}_BUILD: Fourth version component in ${var}_${i}_STRING |
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# - ${var}_${i}_NUMBER: Reassembled verion components |
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# - ${var}_${i}_PRERELEASE: If the version indicates a prerelease build |
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# - ${var}_${i}_PRIVATE: If the version indicates a private build |
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# - ${var}_HEAD: The first paragraph of the associated file |
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# - ${var}_TAIL: The remaining paragraphs of the associated file |
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# |
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# - GIT_COMMIT: The current git commit. (not defined if there is no GIT_DIR directory) |
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# - GIT_COMMIT_PREFIX_${i}: The first ${i} characters of GIT_COMMIT (i=0..39) |
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# For the exact syntax of SRC see the documentation of the configure_file() cmake command. |
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# The version file is regenerated whenever VERSION_FILE or the current commit changes. |
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function(version_file SRC DST VERSION_SOURCES GIT_DIR) |
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set(MODE_VARIABLE 0) |
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set(MODE_FILE 1) |
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set(mode ${MODE_VARIABLE}) |
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set(args) |
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set(dependencies "${VERSION_STRING_SCRIPT}") |
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foreach(arg IN LISTS VERSION_SOURCES) |
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if(mode EQUAL MODE_VARIABLE) |
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set(mode ${MODE_FILE}) |
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else() |
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get_filename_component(arg "${arg}" ABSOLUTE) |
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list(APPEND dependencies ${arg}) |
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set(mode ${MODE_VARIABLE}) |
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endif() |
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list(APPEND args ${arg}) |
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endforeach() |
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get_filename_component(abs_src "${SRC}" ABSOLUTE) |
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get_filename_component(abs_dst "${DST}" ABSOLUTE) |
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get_filename_component(abs_git_dir "${GIT_DIR}" ABSOLUTE) |
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set(defines) |
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if(ARGC GREATER 4) |
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set(defines ${ARGV4}) |
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endif() |
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if(EXISTS "${abs_git_dir}") |
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find_program(GIT_COMMAND git) |
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if(GIT_COMMAND) |
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list(APPEND dependencies "${GIT_COMMAND}") |
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endif() |
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if(EXISTS "${abs_git_dir}/HEAD") |
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list(APPEND dependencies "${abs_git_dir}/HEAD") |
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endif() |
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if(EXISTS "${abs_git_dir}/packed-refs") |
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list(APPEND dependencies "${abs_git_dir}/packed-refs") |
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endif() |
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if(EXISTS "${abs_git_dir}/logs/HEAD") |
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list(APPEND dependencies "${abs_git_dir}/logs/HEAD") |
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endif() |
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else() |
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set(abs_git_dir "") |
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endif() |
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add_custom_command( |
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OUTPUT |
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"${abs_dst}" |
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COMMAND |
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${CMAKE_COMMAND} |
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"-DINPUT=${abs_src}" |
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"-DOUTPUT=${abs_dst}" |
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"-DVERSION_SOURCES=${args}" |
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"-DGIT_DIR=${abs_git_dir}" |
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"-DGIT_COMMAND=${GIT_COMMAND}" |
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${defines} |
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-P "${VERSION_STRING_SCRIPT}" |
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COMMAND |
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${CMAKE_COMMAND} -E touch "${abs_dst}" |
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MAIN_DEPENDENCY |
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"${abs_src}" |
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DEPENDS |
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${dependencies} |
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COMMENT "" |
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VERBATIM |
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) |
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endfunction() |
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macro(_version_escape var string) |
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set(${var} "${string}") |
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endmacro() |
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macro(_define_version_var_nostrip suffix contents) |
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_version_escape(${var}_${suffix} "${${contents}}") |
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list(APPEND variables ${var}_${suffix}) |
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endmacro() |
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macro(_define_version_var suffix contents) |
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string(STRIP "${${contents}}" tmp) |
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_define_version_var_nostrip(${suffix} tmp) |
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endmacro() |
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macro(_define_version_line_var_nostrip suffix contents) |
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_define_version_var_nostrip(${i}_${suffix} ${contents}) |
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if(line_name) |
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set(${line_name}_${suffix} "${${var}_${i}_${suffix}}") |
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list(APPEND variables ${line_name}_${suffix}) |
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endif() |
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endmacro() |
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macro(_define_version_line_var suffix contents) |
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string(STRIP "${${contents}}" tmp) |
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_define_version_line_var_nostrip(${suffix} tmp) |
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endmacro() |
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function(parse_version_file names file) |
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list(GET names 0 var) |
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list(LENGTH names names_count) |
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set(variables) |
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file(READ "${file}" contents) |
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string(STRIP "${contents}" contents) |
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string(REGEX REPLACE "\r\n" "\n" contents "${contents}") |
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string(REGEX REPLACE "\r" "\n" contents "${contents}") |
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_version_escape(${var} "${contents}") |
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list(APPEND variables ${var}) |
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# Split the version file into lines. |
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string(REGEX MATCHALL "[^\r\n]+" lines "${contents}") |
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set(i 0) |
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foreach(line IN LISTS lines) |
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if(i LESS names_count) |
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list(GET names ${i} line_name) |
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else() |
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set(line_name) |
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endif() |
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_define_version_var(${i} line) |
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if(line MATCHES "^([^ ]*) (.*)$") |
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set(prefix "${CMAKE_MATCH_1}") |
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set(notprefix "${CMAKE_MATCH_2}") |
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_define_version_line_var(PREFIX prefix) |
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_define_version_line_var(LINE notprefix) |
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else() |
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_define_version_line_var(PREFIX line) |
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endif() |
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if(line MATCHES "^(.*[^+] )?([^ ]+)( \\+ [^ ]+)?$") |
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set(name "${CMAKE_MATCH_1}") |
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set(string "${CMAKE_MATCH_2}") |
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set(suffix "${CMAKE_MATCH_3}") |
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_define_version_line_var(NAME name) |
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_define_version_line_var(STRING string) |
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_define_version_line_var_nostrip(SUFFIX suffix) |
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if(i GREATER 0 AND line_name) |
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set(${line_name} "${${var}_${i}_STRING}") |
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list(APPEND variables ${line_name}) |
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endif() |
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if(string MATCHES "^([0-9]+)(\\.([0-9]+)(\\.([0-9]+)(\\.([0-9]+))?)?)?(.*)?$") |
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set(major "${CMAKE_MATCH_1}") |
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set(minor "${CMAKE_MATCH_3}") |
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set(patch "${CMAKE_MATCH_5}") |
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set(build "${CMAKE_MATCH_7}") |
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set(release "${CMAKE_MATCH_8}") |
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set(error 0) |
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set(newpatch) |
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set(newbuild) |
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set(prerelease 0) |
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set(private 0) |
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if(release MATCHES "^\\-dev\\-([2-9][0-9][0-9][0-9]+)\\-([0-9][0-9])\\-([0-9][0-9])$") |
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set(prerelease 1) |
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set(newpatch "${CMAKE_MATCH_1}") |
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set(newbuild "${CMAKE_MATCH_2}${CMAKE_MATCH_3}") |
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elseif(release MATCHES "^\\-rc([0-9]+)$") |
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set(prerelease 1) |
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set(newpatch "9999") |
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set(newbuild "${CMAKE_MATCH_1}") |
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elseif(release MATCHES "^\\-r([0-9]+)$") |
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if(build STREQUAL "") |
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set(build "${CMAKE_MATCH_1}") |
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else() |
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set(error 1) |
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endif() |
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elseif(release OR suffix) |
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set(prerelease 1) |
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set(private 1) |
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set(newpatch 9999) |
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set(newbuild 9999) |
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endif() |
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foreach(component IN ITEMS major minor patch build newpatch newbuild) |
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string(REGEX REPLACE "^0+" "" ${component} "${${component}}") |
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if(NOT ${component}) |
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set(${component} 0) |
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endif() |
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endforeach() |
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if(newpatch) |
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set(prerelease 1) |
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if(build) |
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set(error 1) |
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else() |
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if(patch) |
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if(newpatch EQUAL 9999) |
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math(EXPR patch "${patch} - 1") |
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if(newbuild EQUAL 9999) |
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set(build 9999) |
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else() |
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math(EXPR build "${newbuild} + 1000") |
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endif() |
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else() |
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set(error 1) |
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endif() |
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else() |
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if(minor) |
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math(EXPR minor "${minor} - 1") |
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else() |
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if(major) |
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math(EXPR major "${major} - 1") |
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else() |
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set(error 1) |
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endif() |
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set(minor 9999) |
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endif() |
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set(patch "${newpatch}") |
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set(build "${newbuild}") |
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endif() |
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endif() |
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endif() |
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set(number "${major}") |
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if(minor OR patch OR build) |
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set(number "${number}.${minor}") |
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if(patch OR build) |
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set(number "${number}.${patch}") |
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if(build) |
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set(number "${number}.${build}") |
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endif() |
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endif() |
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endif() |
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_define_version_line_var(MAJOR major) |
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_define_version_line_var(MINOR minor) |
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_define_version_line_var(PATCH patch) |
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_define_version_line_var(BUILD build) |
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_define_version_line_var(PRERELEASE prerelease) |
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_define_version_line_var(PRIVATE private) |
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_define_version_line_var(NUMBER number) |
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_define_version_line_var(ERROR error) |
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endif() |
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endif() |
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math(EXPR i "${i} + 1") |
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endforeach() |
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set(${var}_COUNT ${i} PARENT_SCOPE) |
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string(REGEX REPLACE "\n\n.*$" "" head "${contents}") |
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_define_version_var(HEAD head) |
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string(REGEX MATCH "\n\n.*" tail "${contents}") |
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_define_version_var(TAIL tail) |
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foreach(var IN LISTS variables) |
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set(${var} "${${var}}" PARENT_SCOPE) |
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endforeach() |
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endfunction()
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