[bug#27855] [PATCH] gnu: Add rsync service.

[Oleg Pykhalov <go.wigust@gmail.com>]

Hello,

> Hello Christopher,
>
> Thank you for supporting this patch!
>
> Christopher Baines <mail@cbaines.net> writes:
>
>> On Thu, 10 Aug 2017 08:18:20 +0100
>> Christopher Baines <mail@cbaines.net> wrote:
>>
>>> I've attached the beginnings of a system test for this. I haven't got
>>> as far as actually testing the service directly yet, but I'm going to
>>> try testing it, both when running as root, and when not running as
>>> root.
>>> 
>>> A VM start script can be created from this rsync.scm file, by running:
>>>   guix system vm gnu/tests/rsync.scm
>>> 
>>> Also, the test itself can be run by doing:
>>>   make check-system TESTS=rsync
>>
>> I've now got around to actually testing the service. I've attached a
>> patch which creates two system tests. One which tests the service with
>> the default port, and one with a higher port (I randomly picked 2000).
>>
>> The default port test currently passes, but the higher port one
>> currently fails as the rsync service can't create the PID file.
>>
>> One option to fix this would be to create a /var/run/rsync directory
>> which is owned by the rsyncd user, and then create the PID file
>> as /var/run/rsync/pid.
>
> I'll check it later, if you'll not be faster than me.  :-)
>
>> Just let me know if you have any questions?
> …
>
> I successfully passed you previous patch test, but the new patch one
> with two “ports” fails.

Trying to understand what is going on.  Working on your latest test
patch.

This is what I currently have.  It's not differ from your patch except
commented test below.  guix/gnu/tests/rsync.scm
https://paste.pound-python.org/raw/ZyfPIvOWAbPd7blPRXf7/

I fully commented
(test-equal "Test file correctly received from share" …).

(test-assert "Test file copied to share"
  …
  (zero? ; ERROR HERE
   (system* "rsync" "/tmp/input" "localhost::files/")))

Bottom of test log:
--8<---------------cut here---------------start------------->8---
rsync: mkstemp ".input.Y6OhRW" (in files) failed: Permission denied (13)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1178) [sender=3.1.2]
QEMU runs as PID 5
connected to QEMU's monitor
read QEMU monitor prompt
connected to guest REPL
%%%% Starting test rsync  (Writing full log to "rsync.log")
marionette is ready
/gnu/store/bm3kvdwh8q3spvhxbmpmcjwz3fng8z5f-rsync-test-builder:1: FAIL Test file copied to share
# of expected passes      2
# of unexpected failures  1
note: keeping build directory `/tmp/guix-build-rsync-test.drv-9'
builder for `/gnu/store/1hv9c616m9xkgi549hgbn1y2vr8mnzfr-rsync-test.drv' failed with exit code 1
@ build-failed /gnu/store/1hv9c616m9xkgi549hgbn1y2vr8mnzfr-rsync-test.drv - 1 builder for `/gnu/store/1hv9c616m9xkgi549hgbn1y2vr8mnzfr-rsync-test.drv' failed with exit code 1
TOTAL: 1
FAIL: /gnu/store/s0rwmr3iha48jbw2b9xkzcqqsamdl21q-rsync-test
make: *** [Makefile:5217: check-system] Error 1
--8<---------------cut here---------------end--------------->8---

Also, I have (is related?) error on top of test log.
--8<---------------cut here---------------start------------->8---
natsu@magnolia ~/src/guix$ ./pre-inst-env make check-system TESTS=rsync-with-default-port
Compiling Scheme modules...
warning: failed to load '(gnu tests admin)':
ERROR: In procedure allocate-struct: Wrong type argument in position 2: 8
--8<---------------cut here---------------end--------------->8---

Best wishes,

Oleg.