Date: Wed, 17 Jul 2002 18:58:19 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: boris_2000@omskmail.ru Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Problems with ports Message-ID: <20020717175819.GA41524@happy-idiot-talk.infracaninophi> In-Reply-To: <3D358901.2030601@omskmail.ru> References: <3D358901.2030601@omskmail.ru>
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On Wed, Jul 17, 2002 at 07:10:57PM +0400, Boris wrote:
> I`m using my FreeBSD 4.4 at home and as a result I have to use dial up for
> Internet. And while using ports I`m disconnecting and program didn`t
> download, I must to start again. It`s very uncomfortable for me, as a
> result I must use wget or other. Why not to add a future a resuming
> download for ports? Please answer. Thank You
Yes --- I've had that experience. However, adding a "resume download"
for ports is probably not going to happen. The reasons are:
i) If you're using an `always on' sort of connection (ADSL, leased
line), then download failures are usually to do with more serious
problems than a disconnected phone call. In that case it's better
to give up, return some sort of error and rely on human
intervention to fix the problem. It's usually better to delete any
partially downloaded files as well -- because ...
ii) The ports Makefiles have no way of telling if a file has been
completely downloaded. They work essentially on whether a file of
the right name is there or not. If the file is there, the make
program will assume that the download worked and go on to the next
stage: comparing the downloaded file against the recorded checksum.
Even that cannot distinguish between a file that has been truncated
by an incomplete download or a file that has been altered in some
other way -- e.g. replaced by different contents.
iii) If you are on a system where truncated downloads are a
problem, then you do have the option of doing a `fetch -r'
manually. You set 'FETCH_BEFORE_ARGS= -R' in /etc/make.conf to
stop the ports system deleting what you've just downloaded.
> P.S:Sorry for my English.
It's better than my Russian.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
Tel: +44 1628 476614 Marlow
Fax: +44 0870 0522645 Bucks., SL7 1TH UK
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