Chdir engines to avoid their logfiles

[GoogleCodeExporter]

Before we execute engines, we should change directory to e.g. ~/.pychess to
avoid files like shredder.pl2 in users homedir.

Original issue reported on code.google.com by lobais on 6 Oct 2007 at 7:02

[GoogleCodeExporter]

Original comment by lobais on 16 Nov 2007 at 6:25

• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

In changeset 3c1e0bb029d4 I used ~/.local/share/pychess/engines/ (or 
equivalent). Fixing this creates a question: how can we stop a build-up of 
engine logs? If we delete all old files we risk killing learning files created 
by engines, or support files put there intentionally by users. Maybe this will 
be OK when we have engine config dialogs.

Original comment by Uncombed...@gmail.com on 7 Apr 2011 at 12:54

[GoogleCodeExporter]

Hm, for a start I don't think the files are gonna fill up the users hard drive.

If it becomes a problem, could we ask the OS when the files were last read? If 
it's not read, it's not a learning file. Actually, if it's not written to, it's 
probably isn't one either.

Original comment by lobais on 7 Apr 2011 at 7:20

[GoogleCodeExporter]

os.stat gives us all the file information we could want.

Original comment by lobais on 7 Apr 2011 at 7:27

[GoogleCodeExporter]

Original comment by gbtami on 7 May 2013 at 12:02

• Changed state: Fixed