Re: Patch to tidy up wget use, and add return=4 when 404's are seen

[Philip Hands <phil@hands.com>]

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Frans Pop wrote:
> Or maybe use a switch to toggle between "continuation" and "full" retries. 
> Continuation retries probably make sense for larger files (Packages comes 
> to mind) for which the integrity can be checked (md5sum).
> Given the caveats in the wget manpage for -c, it may be safer to not do 
> continuation retries at all, but just do a full retry in other cases (like 
> fetching preseed files).

OK, I've done -c as an option to fetch-url that adds a -c option to wget
 for the 3 retries that it tries if the initial wget fails.  I've also
made preseed_fetch accept options and pass them onto fetch-url, so you
can use -c in preseed scripts (for downloading udebs or debs, say)

Here's the patch, split in two as you suggested so that the first half
is just the moving of fetch-url into di-utils:

  http://hands.com/~phil/d-i/fetch-url.diff

and the second bit is the wget404 stuff:

  http://hands.com/~phil/d-i/wget404.diff

Cheers, Phil.
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