利用SVN实现自动版本号生成

 

以 vc6 为例, 文件的版本信息保存在 rc 文件. 编译成 res 文件, 然后和其他 obj 一起 link. 现在的思路就是. 编辑 rc 文件, 将版本号比如 2.2.4.0 改成 2.2.4.$WCREV$, 在每次 link 之前, 先用 subwcrev.exe 处理 rc 文件, 进行宏替换. 然后调用 

rc.exe 编译替换后的新文件. 生成 res 之后一起 link.……

/*  * Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */#include <fstream>#include <sstream>#pragma warning(disable:4996)int main(int argc, char **argv){    std::string path;    if(argc >= 1 && argv[1] )    {        path = argv[1];        if(path.size() > 0 && (path[path.size()-1]!='/' || path[path.size()-1]!='//'))            path += '/';    }    FILE* EntriesFile = fopen((path+".svn/entries").c_str(), "r");    if(!EntriesFile)        EntriesFile = fopen((path+"_svn/entries").c_str(), "r");    std::ostringstream newData;    if(!EntriesFile)    {        newData << "#ifndef __SVN_REVISION_H__" << std::endl;        newData << "#define __SVN_REVISION_H__"  << std::endl;        newData << " #define SVN_REVISION /"Unknown/"" << std::endl;        newData << " #define SVN_DATE /"Unknown/"" << std::endl;        newData << " #define SVN_TIME /"Unknown/""<< std::endl;        newData << "#endif // __SVN_REVISION_H__" << std::endl;    }    else    {        char buf[200];        int revision;        char date_str[200];        char time_str[200];        fgets(buf,200,EntriesFile);        fgets(buf,200,EntriesFile);        fgets(buf,200,EntriesFile);        fscanf(EntriesFile,"%i",&revision);        fgets(buf,200,EntriesFile);        fgets(buf,200,EntriesFile);        fgets(buf,200,EntriesFile);        fgets(buf,200,EntriesFile);        fgets(buf,200,EntriesFile);        fscanf(EntriesFile,"%10sT%8s",date_str,time_str);        newData << "#ifndef __SVN_REVISION_H__" << std::endl;        newData << "#define __SVN_REVISION_H__"  << std::endl;        newData << " #define SVN_REVISION /"" << revision << "/"" << std::endl;        newData << " #define SVN_REVISIONSTR /"" << revision/1000 << "." << revision%1000/100 << "."             << revision%100/10 << "." << revision%10            << "/"" << std::endl;        newData << " #define SVN_FILESTR " << revision/1000 << "," << revision%1000/100 << ","             << revision%100/10 << "," << revision%10            << std::endl;        newData << " #define SVN_DATE /"" << date_str << "/"" << std::endl;        newData << " #define SVN_TIME /"" << time_str << "/""<< std::endl;        newData << "#endif // __SVN_REVISION_H__" << std::endl;        fclose(EntriesFile);    }    std::string oldData;    if(FILE* HeaderFile = fopen((path+"svn_revision.h").c_str(),"rb"))    {        while(!feof(HeaderFile))        {            int c = fgetc(HeaderFile);            if(c < 0)                break;            oldData += (char)c;        }        fclose(HeaderFile);    }    if(newData.str() != oldData)    {        if(FILE* OutputFile = fopen((path+"svn_revision.h").c_str(),"wb"))        {            fprintf(OutputFile,"%s",newData.str().c_str());            fclose(OutputFile);        }    }    return 0;}

 

在vc的precompile步骤里面调用gensvnrevision，生成svn_revision.h， 如：

 

#ifndef __SVN_REVISION_H__#define __SVN_REVISION_H__ #define SVN_REVISION "1707" #define SVN_REVISIONSTR "1.7.0.7" #define SVN_FILESTR 1,7,0,7 #define SVN_DATE "2010-02-02" #define SVN_TIME "01:36:29"#endif // __SVN_REVISION_H__

 

 

在 project.rc2里面添加include "svn_revision.h", 在版本里面用SVN_REVISIONSTR和SVN_FILESTR替换ProductVersion、FileVersion和 FILEVERSION 、PRODUCTVERSION 。

搞定!使用tsvn的童鞋们可以用第一种方法，要方便很 多!;-)