* Re: [Emacs-diffs] trunk r113420: * net/tramp-sh.el (tramp-sh-handle-vc-registered): Use `ignore-error'.
[not found] <E1UyRIz-0005sJ-Kb@vcs.savannah.gnu.org>
@ 2013-07-15 23:50 ` Stefan Monnier
2013-07-16 8:44 ` Michael Albinus
0 siblings, 1 reply; 5+ messages in thread
From: Stefan Monnier @ 2013-07-15 23:50 UTC (permalink / raw)
To: Michael Albinus; +Cc: emacs-devel
> + (ignore-errors
> + (tramp-run-real-handler 'vc-registered (list file))))))))
Is it normal/common for (tramp-run-real-handler 'vc-registered (list
file)) to signal an error in some corner cases?
Stefan
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Emacs-diffs] trunk r113420: * net/tramp-sh.el (tramp-sh-handle-vc-registered): Use `ignore-error'.
2013-07-15 23:50 ` [Emacs-diffs] trunk r113420: * net/tramp-sh.el (tramp-sh-handle-vc-registered): Use `ignore-error' Stefan Monnier
@ 2013-07-16 8:44 ` Michael Albinus
2013-07-16 21:16 ` Stefan Monnier
0 siblings, 1 reply; 5+ messages in thread
From: Michael Albinus @ 2013-07-16 8:44 UTC (permalink / raw)
To: Stefan Monnier; +Cc: emacs-devel
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
>> + (ignore-errors
>> + (tramp-run-real-handler 'vc-registered (list file))))))))
>
> Is it normal/common for (tramp-run-real-handler 'vc-registered (list
> file)) to signal an error in some corner cases?
No. I have added this as self-defense of Tramp.
The error was triggered, when I have opened a file on a NAS via Tramp. I
have mounted the emacs source directory there, and I have tried to open
a file in that directory.
Due to the existence of .../emacs/.bzr, there was a call
(process-file "bzr" nil t nil "status" "--no-classify" "README")
bzr is not installed on that machine, so this call failed.
The real cause of the problem is a design deficiency, I believe. vc-bzr
should check, whether bzr is installed. Unfortunately, we have only
`executable-find', which works on the local machine. We would need a
counterpart of this function for remote machines, like the pairs
`call-process'/`process-file' and `start-process'/`start-file-process'.
> Stefan
Best regards, Michael.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Emacs-diffs] trunk r113420: * net/tramp-sh.el (tramp-sh-handle-vc-registered): Use `ignore-error'.
2013-07-16 8:44 ` Michael Albinus
@ 2013-07-16 21:16 ` Stefan Monnier
2013-07-17 6:59 ` Michael Albinus
2017-07-10 15:53 ` Michael Albinus
0 siblings, 2 replies; 5+ messages in thread
From: Stefan Monnier @ 2013-07-16 21:16 UTC (permalink / raw)
To: Michael Albinus; +Cc: emacs-devel
>>> + (ignore-errors
>>> + (tramp-run-real-handler 'vc-registered (list file))))))))
>> Is it normal/common for (tramp-run-real-handler 'vc-registered (list
>> file)) to signal an error in some corner cases?
> No. I have added this as self-defense of Tramp.
So an error here indicates an error in some code somewhere. In this
case, with-demoted-errors is preferable.
> The error was triggered, when I have opened a file on a NAS via Tramp.
> I have mounted the emacs source directory there, and I have tried to
> open a file in that directory.
> Due to the existence of .../emacs/.bzr, there was a call
> (process-file "bzr" nil t nil "status" "--no-classify" "README")
> bzr is not installed on that machine, so this call failed.
Sounds like a bug in vc-bzr-register. Could you either try and fix it
there (catching the error right there), or file a bug report for it?
Stefan
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Emacs-diffs] trunk r113420: * net/tramp-sh.el (tramp-sh-handle-vc-registered): Use `ignore-error'.
2013-07-16 21:16 ` Stefan Monnier
@ 2013-07-17 6:59 ` Michael Albinus
2017-07-10 15:53 ` Michael Albinus
1 sibling, 0 replies; 5+ messages in thread
From: Michael Albinus @ 2013-07-17 6:59 UTC (permalink / raw)
To: Stefan Monnier; +Cc: emacs-devel
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
> So an error here indicates an error in some code somewhere. In this
> case, with-demoted-errors is preferable.
Not for Tramp, it must be backwards compatible. Maybe I could add a
respective compatibility macro to Tramp.
> Sounds like a bug in vc-bzr-register. Could you either try and fix it
> there (catching the error right there),
Will try.
> Stefan
Best regards, Michael.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Emacs-diffs] trunk r113420: * net/tramp-sh.el (tramp-sh-handle-vc-registered): Use `ignore-error'.
2013-07-16 21:16 ` Stefan Monnier
2013-07-17 6:59 ` Michael Albinus
@ 2017-07-10 15:53 ` Michael Albinus
1 sibling, 0 replies; 5+ messages in thread
From: Michael Albinus @ 2017-07-10 15:53 UTC (permalink / raw)
To: Stefan Monnier; +Cc: emacs-devel
Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
>>>> + (ignore-errors
>>>> + (tramp-run-real-handler 'vc-registered (list file))))))))
>>> Is it normal/common for (tramp-run-real-handler 'vc-registered (list
>>> file)) to signal an error in some corner cases?
>> No. I have added this as self-defense of Tramp.
>
> So an error here indicates an error in some code somewhere. In this
> case, with-demoted-errors is preferable.
It took almost 4 years, but now I've fixed this.
>> The error was triggered, when I have opened a file on a NAS via Tramp.
>> I have mounted the emacs source directory there, and I have tried to
>> open a file in that directory.
>> Due to the existence of .../emacs/.bzr, there was a call
>> (process-file "bzr" nil t nil "status" "--no-classify" "README")
>> bzr is not installed on that machine, so this call failed.
>
> Sounds like a bug in vc-bzr-register. Could you either try and fix it
> there (catching the error right there), or file a bug report for it?
This bug doesn't happen anymore. I don't remember whether I've filed a
bug report, but it is fixed now.
> Stefan
Best regards, Michael (proud, 'cos I've shortened my todo list).
^ permalink raw reply [flat|nested] 5+ messages in thread
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2013-07-15 23:50 ` [Emacs-diffs] trunk r113420: * net/tramp-sh.el (tramp-sh-handle-vc-registered): Use `ignore-error' Stefan Monnier
2013-07-16 8:44 ` Michael Albinus
2013-07-16 21:16 ` Stefan Monnier
2013-07-17 6:59 ` Michael Albinus
2017-07-10 15:53 ` Michael Albinus
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