Failure during remote upgrade

[Barry Warsaw]

On Sep 30, 2009, at 9:19 AM, Aaron Bentley wrote:

> Barry Warsaw wrote:
>> Is it safe to run the upgrade again?
>
> You'll need to rename backup.bzr to .bzr, but otherwise, yes.

I guess I need to do that through sftp, right?

Also, I wonder if Bazaar doesn't have this upgrade safeguard exactly  
backwards.  For example, the standard *nix update dance is something  
like:

* open file.new
* read file
* write file.new
* close file
* close file.new
* mv file.new file (atomic rename)

This is more robust because if something fails, you still have the  
original file unchanged.

However, Bazaar does it backwards such that if something fails, as it  
did in my case, you're kind of hosed until you take action to unwedge  
things.  Maybe 'bzr upgrade' should be changed to do its upgrade in a  
new location and only move them when they succeed?

-Barry

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