[tahoe-dev] immutable directories!

Zooko Wilcox-O'Hearn zooko at zooko.com
Wed Nov 18 16:57:38 UTC 2009


Whoo-hoo!  Way to go Brian!  Immutable directories are in (#607)!   
But is there a way for users to use them, such as through the CLI or  
WUI?

Do the tests for #708 already cover everything that came out of the  
#607 work?  I guess the release notes will explain that if you create  
an immutable directory then put it into a directory and then let a  
v1.5 clients view that directory then they will see -- what, a child  
name with no attached hyperlink, so it shows the existence of a child  
by that name but they can't click on it?  And v1.4 clients will be  
unable to browse the directory containing such children at all -- if  
they look at that directory then they'll get an exception instead of  
a directory listing.  What does the v1.5 CLI show when you "tahoe ls"  
a directory containing immutable directories?

Let us know how we can manually test the new immutable directories to  
make sure they've been properly banged on in practice before a new  
stable v1.6 release.  Of course, one of the best ways would be to use  
#606 -- a super efficient and secure backup tool.  :-)  But that's  
not done yet.  And we should bang on it in other ways, too.

Regards,

Zooko

http://allmydata.org/trac/tahoe/ticket/606# backupdb: add directory  
cache
http://allmydata.org/trac/tahoe/ticket/607# DIR2:IMM
http://allmydata.org/trac/tahoe/ticket/708# graceful handling of  
capabilities in a format from the future that you can't understand




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