atom feed3 messages in org.freebsd.freebsd-portstar(1) versus unzip
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Skip FordSep 14, 2005 1:36 pm 
Pav LucistnikSep 14, 2005 1:41 pm 
Skip FordSep 14, 2005 1:58 pm 
Subject:tar(1) versus unzip
From:Skip Ford (skip@verizon.net)
Date:Sep 14, 2005 1:58:14 pm
List:org.freebsd.freebsd-ports

Pav Lucistnik wrote:

Skip Ford pí¹e v st 14. 09. 2005 v 16:36 -0400:

Why do ports that need to unzip a file still depend on unzip?

I uninstalled unzip way back when bsdtar(1) was able to unzip but several ports still try to install it even though the system's native tar can unzip their files just fine, at least with the zipped ports I use.

Looks like the magic to handle it can just go into a file in ports/Mk with USE_ZIP, but my Makefile-writing skills aren't good enough to do it. I also don't know the version of FreeBSD that first included bsdtar with zip as the native tar.

So, is there some reason unzip is still needed on all systems or has no one with the knowledge had the time to fix it?

1) Older FreeBSD revisions didn't have tar capable on unzipping, and no one updated the ports infrastructure since.

2) Are you absolutely sure tar handle all obscurities that do happen in real world zip files?

No, I've done no testing at all, other than manually unzipping the few zipped ports I use ever since tar(1) could unzip, and unzipping the odd file here and there from usenet or email. I wouldn't say I've encountered a lot of zipped files, but tar(1) has worked for all of them.

3) Some ports pass custom flags to unzip command, there would blow up when replaced with tar, too.

It'd be possible to depend on the unzip port for older FreeBSD versions and if there are custom flags, but I guess that's probably a lot of work just to avoid a dependency on a small port.

Depending on it when there's no reason to depend on it just bugs me though.