[Toybox] toybox ebuild.

[enh]

On Thu, Feb 9, 2023 at 5:08 PM Rob Landley <rob at landley.net> wrote:
>
> On 2/9/23 07:01, Rob Landley wrote:
> > On 2/9/23 03:51, Patrick Lauer wrote:
> >> On 2/5/23 12:59, Rob Landley wrote:
> >>> Doing my irregular trawl to see if distro repos have any interesting patches or
> >>> bug reports that haven't made it upstream, and... at the risk of opening a can
> >>> of worms:
> >>>
> >>> https://gitweb.gentoo.org/repo/gentoo.git/tree/sys-apps/toybox/toybox-0.8.8.ebuild#n52
> >>>
> >>> You probably want "make tests" (plural), because "make test" builds the "test"
> >>> command as a standalone executable. (Which should usually succeed?)
> >>
> >> Aye. That makes sense. Fixed.
> >>
> >> Now I'm reliably running into a test failure:
> >>
> >> FAIL: cut -C test1.txt
> >> echo -ne '' |
> >> "/var/tmp/portage/sys-apps/toybox-0.8.9/work/toybox-0.8.9/generated/testdir/cut"
> >> -C -1 "$FILES/utf8/test1.txt"
> >> --- expected 2023-02-09 09:49:21.525159648 -0000
> >> +++ actual   2023-02-09 09:49:21.525159648 -0000
> >> @@ -1 +1 @@
> >> -l̴̗̠
> >> +l
> >> make: *** [Makefile:77: tests] Error 1
> >>
> >> No idea yet what's triggering it, maybe you have some insight.
> >
> > Sigh, I hit something similar on bionic with the NDK build (because even a
> > static build of bionic wanted to read files out of /System in order to tell me
> > what is and isn't a combining character):
> >
> > http://lists.landley.net/pipermail/toybox-landley.net/2021-October/028766.html
> >
> > I do my own utf8 parsing, but _unicode_ is a bear to do yourself (just answering
> > the question "is this a combining character" involves
> > http://lists.landley.net/pipermail/toybox-landley.net/2021-October/028753.html
> > and
> > http://lists.landley.net/pipermail/toybox-landley.net/2021-October/028758.html
> > and I decided it was just all out of scope), but the dance to get glibc to admit
> > unicode exists is nontrivial. (And if the state isn't set, ze functions: zey do
> > nothink.)
> >
> > Lemme see what I can do with livegui-amd64 under qemu to reproduce this here...
>
> Reproduced. Haven't really root caused, but I was reminded of:
>
>   https://github.com/landley/toybox/issues/300
>
> Which boils down to "the locale we're trying to use is not installed".
>
> Toybox is doing:
>
>     setlocale(LC_CTYPE, "");
>     if (strcmp("UTF-8", nl_langinfo(CODESET)))
>       uselocale(newlocale(LC_CTYPE_MASK, "en_US.UTF-8", NULL));
>
> And it looks like gentoo has "C.utf8" instead (no dash), which... yeah, it works
> if I tell it to uselocale() that instead. I probably need multiple fallbacks in
> a loop. (Does it care about the dash? Is it case sensitive? How many iterations
> here...)
>
> Oh goddess why is it doing uselocale(newlocale()), I think it was a macos thing?
> Yeah, git annotate says commit 4786fd610 which was Elliott. (Do you remember why
> it was doing that?)

because there isn't a C.UTF-8 (no matter how you try to spell it!) on
macOS, so we need to "merge" utf-8-ness into the current locale. (i'd
argue _that's_ not the ugly part --- the ugly part is that we merge
"en_US.UTF-8" in. but i thought i'd wait until someone was actually
hurt by it before trying to construct the exact right locale for
them.)

> And then the NEXT failure is du which boils down to "oh right, overlayfs is
> broken and says everything is 0 blocks long", which admittedly makes testing du
> problematic there. Probably just a livecd thing...
>
> And then a bunch of "id" failures because all the tests examining root (as a
> presumably known portable account) are confused because you guys added root to a
> zillion other groups. (Why? Root can access any group. Why would you grant
> additional permissions to _root_? Something something selinux?)
>
> Alright, the locale thing I can fix up, the passwd plumbing is undergoing a
> rewrite anyway, and du is useless on overlayfs...
>
> I note that what tests are and aren't included in "make tests" is determined by
> the executable bit on tests/*.test so you could locally chmod -x
> tests/{du,id}.test once I fix up the locale thing cut's barfing on. (I can also
> try to fix them, but in both cases I'm not entirely sure _how_? The commands
> built fine, the tests don't match the distro environment...)
>
> Rob
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