Date: Thu, 8 Apr 2004 11:05:44 +0400 From: Andrey Chernov <ache@nagual.pp.ru> To: Tim Kientzle <tim@kientzle.com> Cc: src-committers@FreeBSD.org Subject: Re: cvs commit: src/usr.sbin/pkg_install/lib file.c Message-ID: <20040408070543.GA50138@nagual.pp.ru> In-Reply-To: <4074F596.2020401@kientzle.com> References: <200404080606.i3866g3q063716@repoman.freebsd.org> <20040408062121.GA49250@nagual.pp.ru> <4074F596.2020401@kientzle.com>
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On Wed, Apr 07, 2004 at 11:47:50PM -0700, Tim Kientzle wrote: > * Not all platforms have getopt_long(), and I intend for > bsdtar to be usable on systems that only have getopt(). > The "-" extension is certainly not standard across getopt() > implementations. (bsdtar currently has a couple of > long options with no short equivalent; I do intend to > address that.) I do not suggest to use initial "-" for getopt() options, only for getopt_long() short options. It means that on platforms without getopt_long() args/options can't be intermixed or, alternatively, you can include BSDL copy of getopt_long() from our libc with your program. > * According to the getopt_long man page, there is > some disagreement about the handling of that leading > "-" in the presence of POSIXLY_CORRECT. I'd prefer > to avoid such ambiguities where possible. This is NetBSD-sm, they try to mimic GNU getopt_long() which is right, since it originates from there, but at some point they think they are smarter than GNU (which leads to breaking some legal getopt_long() usage, f.e. gas becomes broken). How to deal with it, see above, i.e. include our getopt_long(). > As I said, I could be convinced to do as you suggest, but I'm > pretty comfortable with the option parsing of bsdtar > as it stands. BTW, could you please implement -S, --sparse? It is very needed to backup/restore large (and mostly null-filled) databases. There can be cases, when you restore database without -S, it can lead to disk space overflow, since it created as sparse at physical level and occupes less space. -- Andrey Chernov | http://ache.pp.ru/
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