Re: [Bug-tar] --files-from and recursive extract (behavior change in 1.27)

[Pavel Raiskup]

On Friday 19 of June 2015 15:20:04 Jan Engelhardt wrote:
> On Friday 2015-06-19 14:29, Pavel Raiskup wrote:
> >> 
> >> >> The patch fix the first issue I reported, but not the second.
> >> 
> >> This patch, which was recently backported to openSUSE's tar-1.28[1]
> >> 
> >> [1] 
> >> https://build.opensuse.org/package/view_file/Base:System/tar/tar-recursive--files-from.patch?expand=1
> >> 
> >> breaks creation of tar archives when --no-recursive appears after -T:
> >>   https://bugzilla.opensuse.org/show_bug.cgi?id=918487
> >
> >I'm not sure whether this was discussed off-list somehow, but I would call
> >the *new* behavior as expected.  There is inconsistency in behavior - yes,
> >but does not seem to be regression, rather a new feature..?
> 
> It feels very much like a regression, because the behavior changed
> in such a way that it changed the outcome of scripts making use of
> that option.
>
> By default, people will assume that options are position-independent,
> that specifying no-argument options multiple times is idempotent
> unless otherwise specified, and that specifying with-argument options
> have a last-win strategy unless otherwise specified.
>
> TTBOMK, only --verbose is spelled out to change behavior if present
> multiple times, but there is no word on multiple-presence of
> position-dependence of --(no-)recursion in tar.info.

Hmm, actually, I looked at the documentation and it's been documented
since 2003 [1], however I failed to find any working tar release (tried
v1.16.1 and up).  Fix came with thread [3].

[1] http://git.savannah.gnu.org/cgit/tar.git/commit/?id=01d81c7f0fc87
[2] http://www.gnu.org/software/tar/manual/html_section/tar_54.html#recurse
[3] https://lists.gnu.org/archive/html/bug-tar/2014-01/msg00020.html

Pavel