* bug#35129: Unsupported escape sequences for progress in shell
@ 2019-04-03 20:27 Juri Linkov
2019-04-04 20:36 ` Juri Linkov
0 siblings, 1 reply; 7+ messages in thread
From: Juri Linkov @ 2019-04-03 20:27 UTC (permalink / raw)
To: 35129
Some escape sequences are unhandled in shell mode.
Most often they appear when running `apt install'
that shows its progress bar that is supposed to stay
on the same line, but spreads over several lines,
so the output looks like a mess (where ^[7 and ^[8
are escape sequences currently still unhandled):
debconf: unable to initialize frontend: Dialog
debconf: (Dialog frontend will not work on a dumb terminal, an emacs shell buffer, or without a controlling terminal.)
debconf: falling back to frontend: Readline
^[7Progress: [ 0%] [................................................................................................] ^[8
^[7Progress: [ 6%] [######..........................................................................................] ^[8
^[7Progress: [ 13%] [############....................................................................................] ^[8
^[7Progress: [ 19%] [##################..............................................................................] ^[8
^[7Progress: [ 25%] [########################........................................................................] ^[8
^[7Progress: [ 31%] [##############################..................................................................] ^[8
^[7Progress: [ 38%] [####################################............................................................] ^[8
^[7Progress: [ 44%] [##########################################......................................................] ^[8
^[7Progress: [ 50%] [################################################................................................] ^[8
^[7Progress: [ 56%] [######################################################..........................................] ^[8
^[7Progress: [ 63%] [############################################################....................................] ^[8
^[7Progress: [ 69%] [##################################################################..............................] ^[8
^[7Progress: [ 75%] [########################################################################........................] ^[8
^[7Progress: [ 81%] [##############################################################################..................] ^[8
^[7Progress: [ 88%] [####################################################################################............] ^[8
^[7Progress: [ 94%] [##########################################################################################......] ^[8
I'm making this report because escape sequences for colors are handled fine,
and visually these indicators have the green background.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#35129: Unsupported escape sequences for progress in shell
2019-04-03 20:27 bug#35129: Unsupported escape sequences for progress in shell Juri Linkov
@ 2019-04-04 20:36 ` Juri Linkov
2019-04-05 7:08 ` Michael Albinus
0 siblings, 1 reply; 7+ messages in thread
From: Juri Linkov @ 2019-04-04 20:36 UTC (permalink / raw)
To: 35129
> Some escape sequences are unhandled in shell mode.
> Most often they appear when running `apt install'
> that shows its progress bar that is supposed to stay
> on the same line, but spreads over several lines,
> so the output looks like a mess (where ^[7 and ^[8
> are escape sequences currently still unhandled):
After more research, I found an interesting post
https://oremacs.com/2019/03/24/shell-apt/
that proposes a promising way to handle
these escape sequences.
So maybe this should be customizable?
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#35129: Unsupported escape sequences for progress in shell
2019-04-04 20:36 ` Juri Linkov
@ 2019-04-05 7:08 ` Michael Albinus
2019-04-06 20:53 ` Juri Linkov
0 siblings, 1 reply; 7+ messages in thread
From: Michael Albinus @ 2019-04-05 7:08 UTC (permalink / raw)
To: Juri Linkov; +Cc: 35129
Juri Linkov <juri@linkov.net> writes:
Hi Juri,
>> Some escape sequences are unhandled in shell mode.
>> Most often they appear when running `apt install'
>> that shows its progress bar that is supposed to stay
>> on the same line, but spreads over several lines,
>> so the output looks like a mess (where ^[7 and ^[8
>> are escape sequences currently still unhandled):
>
> After more research, I found an interesting post
> https://oremacs.com/2019/03/24/shell-apt/
> that proposes a promising way to handle
> these escape sequences.
>
> So maybe this should be customizable?
Looks interesting. However, we have `progress-reporter'. The code from
above shall be made available via this.
This would also improve Tramp; there are requests to integrate the
progress reporter from external commands.
Best regards, Michael.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#35129: Unsupported escape sequences for progress in shell
2019-04-05 7:08 ` Michael Albinus
@ 2019-04-06 20:53 ` Juri Linkov
2019-04-07 8:46 ` Michael Albinus
0 siblings, 1 reply; 7+ messages in thread
From: Juri Linkov @ 2019-04-06 20:53 UTC (permalink / raw)
To: Michael Albinus; +Cc: 35129
>>> Some escape sequences are unhandled in shell mode.
>>> Most often they appear when running `apt install'
>>> that shows its progress bar that is supposed to stay
>>> on the same line, but spreads over several lines,
>>> so the output looks like a mess (where ^[7 and ^[8
>>> are escape sequences currently still unhandled):
>>
>> After more research, I found an interesting post
>> https://oremacs.com/2019/03/24/shell-apt/
>> that proposes a promising way to handle
>> these escape sequences.
>>
>> So maybe this should be customizable?
>
> Looks interesting. However, we have `progress-reporter'. The code from
> above shall be made available via this.
I'm not sure if we can provide min-value/max-value for
make-progress-reporter. If not, then it uses spinning/pulsing.
It seems progress-reporter doesn't support arbitrary strings
such as that come from underlying process like ^[7Progress: [ 0%]^[8
> This would also improve Tramp; there are requests to integrate the
> progress reporter from external commands.
Could you show an example of a progress reporter from an external command.
Do they use arbitrary strings?
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#35129: Unsupported escape sequences for progress in shell
2019-04-06 20:53 ` Juri Linkov
@ 2019-04-07 8:46 ` Michael Albinus
2019-04-07 20:05 ` Juri Linkov
0 siblings, 1 reply; 7+ messages in thread
From: Michael Albinus @ 2019-04-07 8:46 UTC (permalink / raw)
To: Juri Linkov; +Cc: 35129
Juri Linkov <juri@linkov.net> writes:
Hi Juri,
>> Looks interesting. However, we have `progress-reporter'. The code from
>> above shall be made available via this.
>
> I'm not sure if we can provide min-value/max-value for
> make-progress-reporter. If not, then it uses spinning/pulsing.
> It seems progress-reporter doesn't support arbitrary strings
> such as that come from underlying process like ^[7Progress: [ 0%]^[8
progress-reporter should be improved to accept also strings like "45%"
to be displayed literally.
>> This would also improve Tramp; there are requests to integrate the
>> progress reporter from external commands.
>
> Could you show an example of a progress reporter from an external command.
> Do they use arbitrary strings?
Some scp or pscp versions do it. For example:
--8<---------------cut here---------------start------------->8---
$ pscp -v localhost:/net/ford/Multimedia/Eigene\ Videos/Videos/20150829_145255.mp4 /tmp/foo
[...]
foo | 203369 kB | 5810.6 kB/s | ETA: 00:00:00 | 84%
--8<---------------cut here---------------end--------------->8---
Best regards, Michael.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#35129: Unsupported escape sequences for progress in shell
2019-04-07 8:46 ` Michael Albinus
@ 2019-04-07 20:05 ` Juri Linkov
2019-04-08 7:36 ` Michael Albinus
0 siblings, 1 reply; 7+ messages in thread
From: Juri Linkov @ 2019-04-07 20:05 UTC (permalink / raw)
To: Michael Albinus; +Cc: 35129
>>> Looks interesting. However, we have `progress-reporter'. The code from
>>> above shall be made available via this.
>>
>> I'm not sure if we can provide min-value/max-value for
>> make-progress-reporter. If not, then it uses spinning/pulsing.
>> It seems progress-reporter doesn't support arbitrary strings
>> such as that come from underlying process like ^[7Progress: [ 0%]^[8
>
> progress-reporter should be improved to accept also strings like "45%"
> to be displayed literally.
Another problem is that there is no clear moment to start/stop
progress-reporter with calls to make-progress-reporter and
progress-reporter-done.
>>> This would also improve Tramp; there are requests to integrate the
>>> progress reporter from external commands.
>>
>> Could you show an example of a progress reporter from an external command.
>> Do they use arbitrary strings?
>
> Some scp or pscp versions do it. For example:
>
> $ pscp -v localhost:/net/ford/Multimedia/Eigene\ Videos/Videos/20150829_145255.mp4 /tmp/foo
> [...]
> foo | 203369 kB | 5810.6 kB/s | ETA: 00:00:00 | 84%
Progress on copying large files would be needed for local file operations
as well.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#35129: Unsupported escape sequences for progress in shell
2019-04-07 20:05 ` Juri Linkov
@ 2019-04-08 7:36 ` Michael Albinus
0 siblings, 0 replies; 7+ messages in thread
From: Michael Albinus @ 2019-04-08 7:36 UTC (permalink / raw)
To: Juri Linkov; +Cc: 35129
Juri Linkov <juri@linkov.net> writes:
Hi Juri,
>>> I'm not sure if we can provide min-value/max-value for
>>> make-progress-reporter. If not, then it uses spinning/pulsing.
>>> It seems progress-reporter doesn't support arbitrary strings
>>> such as that come from underlying process like ^[7Progress: [ 0%]^[8
>>
>> progress-reporter should be improved to accept also strings like "45%"
>> to be displayed literally.
>
> Another problem is that there is no clear moment to start/stop
> progress-reporter with calls to make-progress-reporter and
> progress-reporter-done.
At least for my use case, calling external p?scp commands in Tramp,
there is no problem. But in general you might be right.
>>> Could you show an example of a progress reporter from an external command.
>>> Do they use arbitrary strings?
>>
>> Some scp or pscp versions do it. For example:
>>
>> $ pscp -v localhost:/net/ford/Multimedia/Eigene\ Videos/Videos/20150829_145255.mp4 /tmp/foo
>> [...]
>> foo | 203369 kB | 5810.6 kB/s | ETA: 00:00:00 | 84%
>
> Progress on copying large files would be needed for local file operations
> as well.
Yes. But local copying is not implemented via external commands; this
needs another progress reporter call.
Best regards, Michael.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2019-04-08 7:36 UTC | newest]
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2019-04-03 20:27 bug#35129: Unsupported escape sequences for progress in shell Juri Linkov
2019-04-04 20:36 ` Juri Linkov
2019-04-05 7:08 ` Michael Albinus
2019-04-06 20:53 ` Juri Linkov
2019-04-07 8:46 ` Michael Albinus
2019-04-07 20:05 ` Juri Linkov
2019-04-08 7:36 ` Michael Albinus
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