bug#64935: 30.0.50; Some failed tests for Tramp

[Michael Albinus]

Manuel Giraud <manuel@ledu-giraud.fr> writes:

> Hi Michael,

Hi Manuel,

> Your patch did not applied but I've made the same changes and here is
> the full log.

Thanks. Your ls command seems to be less featured.

In both tests, special file names are investigated. They are
"       foo bar baz     " (leading and trailing TAB) and "™›šbung".

Everything is fine in creation, modification, and deleting with these
files. But at one point, Tramp wants a directory listing, and does

--8<---------------cut here---------------start------------->8---
16:35:57.806511 tramp-send-command (6) # /bin/ls -al /tmp/tramp-testaIHNWR/. 
2>/dev/null
16:35:57.812537 tramp-wait-for-regexp (6) #
total 186
drwxr-xr-x   2 manuel  wheel   5632 Jul 31 16:35 .
drwxrwxrwt  18 root    wheel   4096 Jul 31 16:35 ..
-rw-r--r--   1 manuel  manuel    10 Jul 31 16:35 ???bung
--8<---------------cut here---------------end--------------->8---

as well as

--8<---------------cut here---------------start------------->8---
16:36:16.803178 tramp-send-command (6) # /bin/ls -al /tmp/tramp-testLuWwoc/. 
2>/dev/null
total 42
-rw-r--r--   1 manuel  manuel    13 Jul 31 16:36 ?foo bar baz?
--8<---------------cut here---------------end--------------->8---

That is, the special characters are replaced by a question mark
"?". Tramp does several checks how to invoke ls, but in your case it
couldn't find proper options. If there is a GNU ls, for example, Tramp
calls instead

--8<---------------cut here---------------start------------->8---
20:38:15.943249 tramp-send-command (6) # /usr/bin/ls --color=never -al 
--quoting-style\=literal --show-control-chars /home/albinus/. 2>/dev/null
--8<---------------cut here---------------end--------------->8---

Could you please investigate on your system, how to invoke ls for seeing
a TAB in a file name as TAB?

> Thanks.

Best regards, Michael.