Re: 'set' leaks garbage from environment

[Eric Blake <eblake@redhat.com>]

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On 09/30/2014 09:14 AM, Olof Johansson wrote:
> On 2014-09-30 09:01 -0600, Eric Blake wrote:
>> $ dash -c 'unset "a|b"
>> $ echo $?
>> 0
> 
> Works for me (tested on both Debian package versions 0.5.7-3 (wheezy)
> and 0.5.7-4 (unstable)):

Serves me right from testing on multiple machines :(
I mixed up my test results.

Fedora 20 using dash 0.5.7 works:

$ dash -c 'unset "a|b"'
dash: 1: unset: a|b: bad variable name
$ rpm -q dash
dash-0.5.7-8.fc20.x86_64

But RHEL 6 fails:

$ dash -c 'unset "a|b"'
$ rpm -q dash
dash-0.5.5.1-4.el6.x86_64

so this is at least one bug that has already been fixed upstream.

>> $ env 'a|b=' dash -c 'set | grep a"."b'
>> a|b=''
> 
> This I can reproduce though.

Meanwhile, I just tested the latest dash.git (commit f21016a12) and this
behavior is no longer present:

$ env 'a|b=' ./src/dash -c 'set | grep a"."b'

so it has also been fixed in the meantime.  Sorry for not doing my
homework; nothing to fix here...

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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