Hi,
i've implemented a automatic backup-creation to scite (mozers version):
it uses 2 properties:
backup.files => number of backups (1-9)
backup.path => subdir of file's directory to collect the backups
SciteBase.h:670
bool CreateBackup(FilePath saveName); /* F.W. */
SciteIO.cxx:778
/*======================= F.W. ==========================*/
bool FileExists( const char* FileName )
{
FILE* fp = NULL;
//will not work if you do not have read permissions
//to the file, but if you don't have read, it
//may as well not exist to begin with.
fp = fopen( FileName, "rb" );
if( fp != NULL )
{
fclose( fp );
return true;
}
return false;
}
char * buildFilename(const char *path, const char *filename, const char
*ext, const int i)
{
char *is=(char *) malloc(2);
itoa(i,is,10);
int l=strlen(path)+strlen(filename)+strlen(ext)+2;
char *fn= (char *) malloc(l+1);
strcpy(fn,path);
strcat(fn,filename);
strcat(fn,".");
strcat(fn,is);
strcat(fn,ext);
free(is);
return fn;
}
const char * GetFileName(const char* filename)
{
const char *p=strrchr(filename,'\\');
if (p==NULL)
{
return p;
} else
{
return p+1;
}
}
SString BuildPath(const char* filename, SString subdir)
{
const char *p=GetFileName(filename);
if (subdir !="")
{
subdir+="\\";
}
int fl=strlen(filename)-strlen(p);
char *d=(char *) malloc(fl+strlen(subdir.c_str()));
strncpy(d,filename,fl);
d[fl]='\0';
SString res=SString(d);
free(d);
if (subdir != "")
{
res+=subdir;
CreateDirectory(res.c_str(),0);
}
return res;
}
bool SciTEBase::CreateBackup(FilePath saveName)
{
bool ret=false;
//get properties
int c=props.GetInt("backup.files");
if ((c>0) && (c < 10))
{
SString bp=props.Get("backup.path");
char *ext=".bk";
//get filename
const char *f=GetFileName(saveName.AsFileSystem());
//get path
SString pth=BuildPath(saveName.AsFileSystem(), bp);
if (FileExists(saveName.AsFileSystem()))
{
char *lfn=buildFilename(pth.c_str(),f,ext,c);
if (FileExists(lfn))
{
DeleteFile(lfn);
}
free(lfn); // last filename
//rename
int i;
for (i=c;i>1;i--)
{
char *fn=buildFilename(pth.c_str(),f,ext,i-1);
char *fn2=buildFilename(pth.c_str(),f,ext,i);
if (FileExists(fn))
{
rename(fn,fn2);
}
free(fn2);
free(fn);
}
char *ffn=buildFilename(pth.c_str(),f,ext,1);
rename(saveName.AsFileSystem(),ffn);
ret=FileExists(ffn);
free(ffn); //filename
}
}
return ret;
}
/*================= end F.W. ======================*/
/**
* Writes the buffer to the given filename.
*/
bool SciTEBase::SaveBuffer(FilePath saveName) {
...
CreateBackup(saveName); /* F.W. */
FILE *fp = saveName.Open(fileWrite);
its my first real c++ routine so pls say if i made some mistakes. I
found not much about SString so i don't know, if i have to free memory
of it.
its currently only working because i don't know the linux
filesystem-functions for createDirectory, rename and deletefile.
regards Frank
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