"Using Saved Location: foo"

[Jan Hudec]

On Fri, Apr 28, 2006 at 17:02:40 +1000, Martin Pool wrote:
> On 28/04/2006, at 12:55 AM, John Arbash Meinel wrote:
> 
> >Aaron Bentley wrote:
> >>John Arbash Meinel wrote:
> >>>But for local file URLs, it seems like it would be nicer to  
> >>>display the
> >>>actual Unicode path.
> >>
> >>Makes sense to me.
> 
> I think we want a method that gives the "best display form" for a URL  
> in the current user encoding.
> 
> For we will *try* to decode them as utf-8 and then put them into the  
> user encoding.  If that's not possible, we just use the regular URL  
> form.  In more detail: scan for escape sequences, and work out what  
> byte they represent.  If it's a byte that has special meaning in URLs  
> [/?,;#&%+ ] then leave it alone, otherwise unescape it.  Now try to  
> decode as UTF-8, and then check that the result is representable in  
> the user encoding - if either of those fail, leave it as an escaped  
> URL.  Obviously this needs to be symmetric with the algorithm for  
> turning url-like unicode strings into real URLs, and I think it is.

Space should not be in that list -- if we get raw space in url-like
string, we encode it (while we mustn't do it with the other, truly
special ones) so we should decode it as well IMHO.

> [...] 
> John, Robert and I talked about this on irc.
> 
> A related issue is that if you do a pull while cwd is in a  
> subdirectory of a branch, the relative path stored should not be the  
> one you typed, but rather the relative path from the root of your  
> branch.
> 
> There may be some slightly tricky cases caused by symlinks.
> 
> Branch APIs that deal with locations (e.g. Branch.base) should return  
> urls, even for local branches.
> 
> The parent is also a URL or relative reference.  That means that it  
> can be e.g. "../bzr.dev", but it is escaped as a URL.  Setting the  
> parent will work like this:

Can I suggest having a:
class url(string):
	...
?

Then various places in the code can assert that they really have and
url (I'd include relative-url-reference) in it.

>  - get the base url of the new parent
>  - find the relative path from the current branch's url to that url,  
> if possible.  If the urls are in different schemes or hosts, or are  
> different from the first component of the path, then store the  
> absolute url.

-- 
						 Jan 'Bulb' Hudec <bulb at ucw.cz>
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