RE: Status information -- needs a better solution

Regarding the display of the icons in a tree. I have seen TSVN show the modified overlay for a child element and not on any of the parent elements. Does the cache hold off on updating parent elements until it finishes crawling all child elements?

Jared Armstrong

-----Original Message-----
From: Stefan Küng [mailto:tortoisesvn@gmail.com]
Sent: Thursday, February 02, 2006 3:41 PM
To: users@tortoisesvn.tigris.org
Subject: Re: Status information -- needs a better solution

Sven Probst wrote:
> Dear Stefan, dear users,
>
> as I followed this discussion I just want to add an idea, because I
> see the principle problem whether to trust in the status icon overlays or not:
> What about an overlay "don't know" ? This could give the user an
> impression, if the icons are reliable. As Windows offers file change
> notification (unfortunately I don't know details about this) it should
> quickly be possible to know, that the icon overlays are not reliable.

The problem with *every* status indication is that as soon as it's fetched and shown, it can already be outdated again. Even during the status fetching, another app can modify files. So while we crawl the working copy file by file, as soon as we did a file, another app can change that same file. Then when we show the "check for modifications"
dialog, that file would show up as "normal" (i.e. not modified), while it actually got modified just before the dialog was shown.
Depending on the size of a working copy, fetching the status can take several seconds, so it's not that unlikely of something like this to happen.

So, we would *always* have to show "unknown" or "don't know".

About the file change notifications: the cache already uses those. As soon as it detects a change, it starts crawling that directory again.
But since the folder overlays indicate the status recursively, it then also crawls all child dirs to update that recursive status.
So, for 'normal' sized working copies (I take the TSVN working copy as a reference here), the overlays won't be off more than 1-5 seconds.

Stefan

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