GnuCash backup files
cri79 at libero.it
Fri Oct 12 14:01:51 EDT 2012
Thanks Geert for the explanation (clearer than my example!). In
particular point 3 answer my question.
BTW the problem was solved after the user read the section of the
GnuCash guide about how backup files works.
Thanks for the explanation!
Il 12/10/2012 17:44, Geert Janssens ha scritto:
> On 10/09/2012 03:26 PM, Cristian Marchi wrote:
>> I've a question about the auto deletion of backup files by GnuCash
>> older than X days as set in preferences: does it remove the files
>> based on timestamp or by parsing the date in the filename? I've an
>> Italian user reporting the deletion of a GnuCash file that he
>> currently used with a filename set as a backup file. I was wondering
>> if GnuCash could have deleted the file because its filename was
>> composed with a date older than X days.
>> I'll try with an example: let's say my financial data are managed in
>> a file named "data.20120101.gnucash" saved last time on 2012.01.01.
>> Let's say I have preferences set to remove backup files after 5 days.
>> Now if I open the previous file on 2012.01.08 (more than five days
>> later) could my file be deleted by GnuCash? And what if the same file
>> with the same name was saved last time less than five days before the
> Your example is not completely clear to me, I'm afraid. Can you give
> more details about the filenames (you talk of opening a backup file,
> but don't specify what it is called exactly for example).
> In general (from reading the code) I see there are a lot of rigorous
> checks in the old file cleanup code. Let's take datafile
> example.20120101.gnucash and backup file
> example.20120101.20120930225014.gnucash as example files below:
> 1. any file that doesn't end in .LCK, .xac, .gnucash or .log are never
> 2. any file that does not begin with the name of the opened file is
> skipped. So if you open the datafile, any file that doesn't start with
> example.20120101.gnucash will be skipped. Our backup file begins with
> this string, so it's still a candiate for deletion. If on the other
> hand you open the backup file, the normal data file will be skipped,
> because it doesn't start with example.20120101.20120930225014.gnucash
> 3. The opened file itself is skipped, so if you open the data file,
> that file itself will not be deleted. If you open the backup file, the
> backup file won't be deleted.
> 4. Files ending in .LCK get a special treatment (only the active
> lockfile is kept), but that's not relevant to your questions.
> 5. At this point possible candidates to be deleted should
> a. start with the open file's name
> b. end in .log, .gnucash, or .xac
> The next check now is whether there are a dot and 14 digits right
> before the extension. That's the timestamp gnucash adds to the backup
> and log files. If this patterns isn't found, the file is skipped. So
> if you open the data file, the backup file above still matches all
> criteria up until now.
> 6. Finally the code checks if the file is older than the retention
> time defined in the preferences. This doesn't use the timestamp in the
> filename, but the file's actual modified time.
> This is so both in current 2.4 branch as in trunk.
>> While talking about this feature, when GnuCash checks for the
>> deletion of backup files? every time you start it?
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