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From: "Dmitry V. Levin" <ldv@altlinux.org>
To: ALT Devel discussion list <devel@lists.altlinux.org>
Subject: Re: [devel] [git update] packages/hasher: heads/master
Date: Sat, 11 Aug 2007 02:17:38 +0400
Message-ID: <20070810221738.GA9864@nomad.office.altlinux.org> (raw)
In-Reply-To: <20070810162933.D1EC08E80D5@ssh.git.local.altlinux.org>

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On Fri, Aug 10, 2007 at 08:29:33PM +0400, Alexey M. Tourbin wrote:
> Update of /people/at/packages/hasher.git
[...]
>     On the "install ... && Verbose ... || Fatal ..." clauses.  I think this
>     is overkill.

Мне важно не только видеть причину сбоя, но и реакцию программы на сбой.
Возможно, диагностика от install и достаточна.  Решение принимается
субъективно в каждом конкретном случае.

>     On the "if shell_function ...; then ...' clauses.  This is evil.  Don't use
>     shell function in the "if" conditions, because "sh -e" mode is disabled for
>     such calls.  You can no longer expect that something "just fails".

То же самое касается и shell_function && on_success || on_failure.

>     On the "cat file |while read ...; grep || echo >bad; .. done' clauses.
>     I replaced them with "while ... done <file".

Если можно обойтись без подпроцессов, то так и надо делать.

> +	rm -rf cache/contents/list.new
> +	mkdir -p $verbose cache/contents/list.new

Здесь и далее, "rm -rf" с последующим "mkdir -p" на один и тот же каталог --
это неконсистентно; "-p" сбивает с толку читающего код.

> +	rm -rf cache/contents/tmp
> +	mkdir -p cache/contents/tmp
> +	local contents=cache/contents/tmp/contents
[...]
> +	contents_index_bin=chroot/.host/contents_index_bin
[...]
> +	cat <"$contents.bin" >"$contents_index_bin"
> +	rm -rf cache/contents/tmp

Здесь можно заменить cat на mv.

[...]
> +	rm -rf cache/contents/{index,list}
> +	install -p -m644 $verbose chroot/.host/contents_index_bin cache/contents/contents_index_bin
> +	install -p -m644 $verbose chroot/.host/contents_index_all.gz cache/contents/contents_index_all.gz

Тогда уж ln.

> +	contents_index_bin=chroot/.host/contents_index_bin
> +	contents_index_all=chroot/.host/contents_index_all.gz
> +	install -p -m644 $verbose cache/contents/contents_index_bin "$contents_index_bin"
> +	install -p -m644 $verbose cache/contents/contents_index_all.gz "$contents_index_all"

И здесь можно ln.


-- 
ldv

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       reply	other threads:[~2007-08-10 22:17 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-10 22:17 ` Dmitry V. Levin [this message]
2007-08-10 22:35   ` Alexey Tourbin

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