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add automatic file backup

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git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@820 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Linas Vepstas 1998-04-19 05:06:55 +00:00
parent 991a50b2a1
commit b999c291ed
1 changed files with 44 additions and 2 deletions
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46
src/engine/FileIO.c
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@ -87,6 +87,7 @@
#include "Account.h"
#include "AccountP.h"
#include "date.h"
#include "DateUtils.h"
#include "FileIO.h"
#include "Group.h"
#include "GroupP.h"
@ -120,6 +121,7 @@ static Split *readSplit( int fd, int token );
static char *readString( int fd, int token );
static time_t readDate( int fd, int token );
static int writeAccountGroupToFile( char *datafile, AccountGroup *grp );
static int writeGroup( int fd, AccountGroup *grp );
static int writeAccount( int fd, Account *account );
static int writeTransaction( int fd, Transaction *trans );
@ -973,14 +975,53 @@ xaccResetWriteFlags (AccountGroup *grp)
}
/********************************************************************\
* xaccWriteAccountGroup *
* flattens the program data and saves it in a file *
* xaccWriteAccountGroup *
* writes account date to two files: the current file, and a *
* backup log. *
* *
* Args: datafile - the file to store the data in *
* Return: -1 on failure *
\********************************************************************/
int
xaccWriteAccountGroup( char *datafile, AccountGroup *grp )
{
int err = 0;
char * timestamp;
int filenamelen;
char * backup;
if (!datafile) return -1;
err = writeAccountGroupToFile (datafile, grp);
if (0 > err) return err;
/* also, write a time-stamped backup file */
/* tag each filename with a timestamp */
timestamp = xaccDateUtilGetStampNow ();
filenamelen = strlen (datafile) + strlen (timestamp) +5;
backup = (char *) malloc (filenamelen);
strcpy (backup, datafile);
strcat (backup, timestamp);
strcat (backup, ".xac");
err = writeAccountGroupToFile (backup, grp);
free (backup);
free (timestamp);
return err;
}
/********************************************************************\
* writeAccountGroupToFile *
* flattens the program data and saves it in a file *
* *
* Args: datafile - the file to store the data in *
* Return: -1 on failure *
\********************************************************************/
static int
writeAccountGroupToFile( char *datafile, AccountGroup *grp )
{
int err = 0;
int token = VERSION; /* The file format version */
@ -1019,6 +1060,7 @@ xaccWriteAccountGroup( char *datafile, AccountGroup *grp )
err = writeGroup (fd, grp);
close(fd);
return err;
}