Re: [Bug-wget] [bug #45790] wget prints it's progress even when background

[Darshit Shah]

This affects an invokation using the shell's background operator (&) too.

E.g.: wget 
http://cdimage.debian.org/debian-cd/current/multi-arch/iso-cd/debian-8.1.0-amd64-i386-netinst.iso
&
will cause the logging output and progress bar to be displayed on the
terminal as explained in the bug report.

However, I am not willing to fix that behaviour. A huge number of
people copy URLs and paste them in their terminals for Wget to
download without double-quoting them. A large number of these URLs
have the "&" character which causes the shell to background the
process. They tend to realise that something went wrong when the
screen is garbled by a background process spewing messages to stdout
and stderr. If this behaviour is changed, many people won't realise
their error and un-necessarily invoke multiple instances of
backgrounded Wget processes, eventually coming back here with new bug
reports.

The bahviour has remained so for a long time and I'm inclined to
retain the status quo.

On Tue, Aug 18, 2015 at 2:33 PM, NoëlKöthe <address@hidden> wrote:
> URL:
>   <http://savannah.gnu.org/bugs/?45790>
>
>                  Summary: wget prints it's progress even when background
>                  Project: GNU Wget
>             Submitted by: nok
>             Submitted on: Di 18 Aug 2015 11:03:31 CEST
>                 Category: User Interface
>                 Severity: 3 - Normal
>                 Priority: 5 - Normal
>                   Status: None
>                  Privacy: Public
>              Assigned to: None
>          Originator Name:
>         Originator Email:
>              Open/Closed: Open
>          Discussion Lock: Any
>                  Release: None
>         Operating System: None
>          Reproducibility: None
>            Fixed Release: None
>          Planned Release: None
>               Regression: None
>            Work Required: None
>           Patch Included: None
>
>     _______________________________________________________
>
> Details:
>
> Hello,
>
> an old forgotten bug report:
>
> --8<--
> When wget is suspended in command line and then
> send into background (eg using bash bg command), it continues
> to print it's progress messages. This leads to either stopping
> wget or to garbling terminal with wget messages (depending
> on the TOSTOP terminal setting).
> --8<--
> My suggestion is to stop printing verbose progress messages
> when the job is resumed in background. It could be checked
> by (successful) getpgrp() not equal to (successful) tcgetprp(1)
> in SIGCONT signal handler.
>  And something like this is used in some console applications,
> for example, in lftp.
> --8<--
> https://bugs.debian.org/281201
>
> As an example:
>
> # wget
> http://cdimage.debian.org/debian-cd/current/multi-arch/iso-cd/debian-8.1.0-amd64-i386-netinst.iso
> <Press ctrl+z>
> [1]+  Stopped              wget
> http://cdimage.debian.org/debian-cd/current/multi-arch/iso-cd/debian-8.1.0-amd64-i386-netinst.iso
> address@hidden:/tmp/test$ bg
> <garbling the terminal but commands work as expected>
>
> Regards
>
> Noël
>
>
>
>
>     _______________________________________________________
>
> Reply to this item at:
>
>   <http://savannah.gnu.org/bugs/?45790>
>
> _______________________________________________
>   Nachricht gesendet von/durch Savannah
>   http://savannah.gnu.org/
>



-- 
Thanking You,
Darshit Shah