mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-24 04:51:41 +00:00
- Change updaterevision to a CMake script
The benefit to this is fairly small, but it does mean a little less work needs to be done in the build scripts for cross compiling. The C version wasn't especially concise so it was not obviously better in any way.
This commit is contained in:
Braden Obrzut
Christoph Oelckers
parent
d527866e6d
commit
62e9e0cbbb
8 changed files with 101 additions and 185 deletions
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@ -426,9 +426,9 @@ endif()
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# Update gitinfo.h
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# Update gitinfo.h
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add_custom_target( revision_check ALL
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add_custom_target( revision_check ALL
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COMMAND updaterevision src/gitinfo.h
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COMMAND "${CMAKE_COMMAND}" -P "${CMAKE_SOURCE_DIR}/tools/updaterevision/UpdateRevision.cmake" src/gitinfo.h
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
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DEPENDS updaterevision )
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)
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# Libraries ZDoom needs
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# Libraries ZDoom needs
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@ -2,7 +2,6 @@ cmake_minimum_required( VERSION 2.8.7 )
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add_subdirectory( re2c )
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add_subdirectory( re2c )
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add_subdirectory( lemon )
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add_subdirectory( lemon )
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add_subdirectory( updaterevision )
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add_subdirectory( zipdir )
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add_subdirectory( zipdir )
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set( CROSS_EXPORTS ${CROSS_EXPORTS} PARENT_SCOPE )
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set( CROSS_EXPORTS ${CROSS_EXPORTS} PARENT_SCOPE )
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@ -1,24 +0,0 @@
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cmake_minimum_required( VERSION 2.8.7 )
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if( WIN32 )
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if( MSVC_VERSION GREATER 1399 )
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# VC 8+ adds a manifest automatically to the executable. We need to
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# merge ours with it.
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set( MT_MERGE ON )
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else()
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set( TRUSTINFO trustinfo.rc )
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endif()
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else( WIN32 )
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set( TRUSTINFO "" )
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endif()
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if( NOT CMAKE_CROSSCOMPILING )
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add_executable( updaterevision updaterevision.c ${TRUSTINFO} )
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set( CROSS_EXPORTS ${CROSS_EXPORTS} updaterevision PARENT_SCOPE )
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endif()
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if( MT_MERGE )
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add_custom_command(TARGET updaterevision POST_BUILD
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COMMAND mt -inputresource:$<TARGET_FILE:updaterevision> -manifest ${CMAKE_CURRENT_SOURCE_DIR}/trustinfo.txt -outputresource:$<TARGET_FILE:updaterevision> -nologo
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COMMENT "Embedding trustinfo into updaterevision" )
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endif()
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91
tools/updaterevision/UpdateRevision.cmake
Executable file
91
tools/updaterevision/UpdateRevision.cmake
Executable file
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@ -0,0 +1,91 @@
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#!/usr/bin/cmake -P
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# UpdateRevision.cmake
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#
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# Public domain. This program uses git commands command to get
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# various bits of repository status for a particular directory
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# and writes it into a header file so that it can be used for a
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# project's versioning.
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# Boilerplate to return a variable from a function.
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macro(ret_var VAR)
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set(${VAR} "${${VAR}}" PARENT_SCOPE)
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endmacro()
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# Populate variables "Hash", "Tag", and "Timestamp" with relevant information
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# from source repository. If anything goes wrong return something in "Error."
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function(query_repo_info)
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execute_process(
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COMMAND git describe --tags --dirty=-m
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RESULT_VARIABLE Error
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OUTPUT_VARIABLE Tag
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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if(NOT "${Error}" STREQUAL "0")
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ret_var(Error)
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return()
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endif()
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execute_process(
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COMMAND git log -1 "--format=%ai;%H"
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RESULT_VARIABLE Error
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OUTPUT_VARIABLE CommitInfo
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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if(NOT "${Error}" STREQUAL "0")
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ret_var(Error)
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return()
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endif()
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list(GET CommitInfo 0 Timestamp)
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list(GET CommitInfo 1 Hash)
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ret_var(Tag)
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ret_var(Timestamp)
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ret_var(Hash)
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endfunction()
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# Although configure_file doesn't overwrite the file if the contents are the
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# same we can't easily observe that to change the status message. This
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# function parses the existing file (if it exists) and puts the hash in
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# variable "OldHash"
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function(get_existing_hash File)
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if(EXISTS "${File}")
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file(STRINGS "${File}" OldHash LIMIT_COUNT 1)
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if(OldHash)
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string(SUBSTRING "${OldHash}" 3 -1 OldHash)
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ret_var(OldHash)
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endif()
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endif()
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endfunction()
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function(main)
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if(NOT CMAKE_ARGC EQUAL 4) # cmake -P UpdateRevision.cmake <OutputFile>
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message("Usage: ${CMAKE_ARGV2} <path to gitinfo.h>")
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return()
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endif()
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set(OutputFile "${CMAKE_ARGV3}")
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get_filename_component(ScriptDir "${CMAKE_SCRIPT_MODE_FILE}" DIRECTORY)
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query_repo_info()
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if(NOT Hash)
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message("Failed to get commit info: ${Error}")
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set(Hash "0")
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set(Tag "<unknown version>")
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set(Timestamp "")
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endif()
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get_existing_hash("${OutputFile}")
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if(Hash STREQUAL OldHash)
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message("${OutputFile} is up to date at commit ${Tag}.")
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return()
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endif()
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configure_file("${ScriptDir}/gitinfo.h.in" "${OutputFile}")
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message("${OutputFile} updated to commit ${Tag}.")
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endfunction()
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main()
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8
tools/updaterevision/gitinfo.h.in
Normal file
8
tools/updaterevision/gitinfo.h.in
Normal file
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@ -0,0 +1,8 @@
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// @Hash@
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//
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// This file was automatically generated by the
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// updaterevision tool. Do not edit by hand.
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#define GIT_DESCRIPTION "@Tag@"
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#define GIT_HASH "@Hash@"
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#define GIT_TIME "@Timestamp@"
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@ -1,6 +0,0 @@
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// This resource script is for compiling with MinGW only. Visual C++
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// compilations use the manifest tool to insert the manifest instead.
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#include <WinUser.h>
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1 RT_MANIFEST "trustinfo.txt"
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@ -1,16 +0,0 @@
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<!-- Ignore any warnings about Unrecognized Element "trustInfo" -->
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<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
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<assemblyIdentity version="1.0.0.0"
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processorArchitecture="X86"
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name="UpdateRevision"
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type="win32" />
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<description>Update svnrevision.h for the ZDoom source build process.</description>
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<ms_asmv3:trustInfo xmlns:ms_asmv3="urn:schemas-microsoft-com:asm.v3">
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<ms_asmv3:security>
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<ms_asmv3:requestedPrivileges>
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<ms_asmv3:requestedExecutionLevel level="asInvoker" uiAccess="false" />
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</ms_asmv3:requestedPrivileges>
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</ms_asmv3:security>
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</ms_asmv3:trustInfo>
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</assembly>
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@ -1,136 +0,0 @@
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/* updaterevision.c
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*
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* Public domain. This program uses git commands command to get
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* various bits of repository status for a particular directory
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* and writes it into a header file so that it can be used for a
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* project's versioning.
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*/
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#define _CRT_SECURE_NO_DEPRECATE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#ifdef _WIN32
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#define popen _popen
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#define pclose _pclose
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#endif
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// Used to strip newline characters from lines read by fgets.
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void stripnl(char *str)
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{
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if (*str != '\0')
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{
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size_t len = strlen(str);
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if (str[len - 1] == '\n')
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{
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str[len - 1] = '\0';
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}
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}
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}
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int main(int argc, char **argv)
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{
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char vertag[128], lastlog[128], lasthash[128], *hash = NULL;
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FILE *stream = NULL;
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int gotrev = 0, needupdate = 1;
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vertag[0] = '\0';
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lastlog[0] = '\0';
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if (argc != 2)
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{
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fprintf(stderr, "Usage: %s <path to gitinfo.h>\n", argv[0]);
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return 1;
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}
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// Use git describe --tags to get a version string. If we are sitting directly
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// on a tag, it returns that tag. Otherwise it returns <most recent tag>-<number of
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// commits since the tag>-<short hash>.
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// Use git log to get the time of the latest commit in ISO 8601 format and its full hash.
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stream = popen("git describe --tags --dirty=-m && git log -1 --format=%ai*%H", "r");
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if (NULL != stream)
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{
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if (fgets(vertag, sizeof vertag, stream) == vertag &&
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fgets(lastlog, sizeof lastlog, stream) == lastlog)
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{
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stripnl(vertag);
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stripnl(lastlog);
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gotrev = 1;
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}
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pclose(stream);
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}
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if (gotrev)
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{
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hash = strchr(lastlog, '*');
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if (hash != NULL)
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{
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*hash = '\0';
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hash++;
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}
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}
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if (hash == NULL)
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{
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fprintf(stderr, "Failed to get commit info: %s\n", strerror(errno));
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strcpy(vertag, "<unknown version>");
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lastlog[0] = '\0';
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lastlog[1] = '0';
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lastlog[2] = '\0';
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hash = lastlog + 1;
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}
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stream = fopen (argv[1], "r");
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if (stream != NULL)
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{
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if (!gotrev)
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{ // If we didn't get a revision but the file does exist, leave it alone.
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fclose (stream);
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return 0;
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}
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// Read the revision that's in this file already. If it's the same as
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// what we've got, then we don't need to modify it and can avoid rebuilding
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// dependant files.
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if (fgets(lasthash, sizeof lasthash, stream) == lasthash)
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{
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stripnl(lasthash);
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if (strcmp(hash, lasthash + 3) == 0)
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{
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needupdate = 0;
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}
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}
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fclose (stream);
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}
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if (needupdate)
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{
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stream = fopen (argv[1], "w");
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if (stream == NULL)
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{
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return 1;
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}
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fprintf(stream,
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"// %s\n"
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"//\n"
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"// This file was automatically generated by the\n"
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"// updaterevision tool. Do not edit by hand.\n"
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"\n"
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"#define GIT_DESCRIPTION \"%s\"\n"
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"#define GIT_HASH \"%s\"\n"
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"#define GIT_TIME \"%s\"\n",
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hash, vertag, hash, lastlog);
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fclose(stream);
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fprintf(stderr, "%s updated to commit %s.\n", argv[1], vertag);
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}
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else
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{
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fprintf (stderr, "%s is up to date at commit %s.\n", argv[1], vertag);
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}
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return 0;
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}
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