Re: [dsdp-tm-dev] "Run a command" functionality

["Schaefer, Doug" <Doug.Schaefer@xxxxxxxxxxxxx>]

I'm surprised RSE doesn't have this already. Sounds like a reasonable feature to add.

Of course, TCF already has a service for this. Thinking out loud, it would be great if we could get TCF working with sshd so that you didn't have to deploy a TCF agent in all your targets if all you want to do is run commands and download files.

Doug.

> -----Original Message-----
> From: dsdp-tm-dev-bounces@xxxxxxxxxxx [mailto:dsdp-tm-dev-
> bounces@xxxxxxxxxxx] On Behalf Of Vladimir Prus
> Sent: Saturday, June 18, 2011 5:12 AM
> To: Target Management developer discussions
> Subject: [dsdp-tm-dev] "Run a command" functionality
> 
> 
> Hello,
> 
> in a few cases in our product, we're interested in just running a command
> remotely, getting its exit status and output. At the same time, it's explicitly
> not desirable to show the user any console window with the command
> output.
> 
> RSE provides shell service, which can be used to run a command, however
> this is good for interactive use, and has some problems when used to run a
> single
> command:
> 
> - The commands see they have a terminal, and starts to behave interactively,
> like asking the user some questions, which is bad in our case.
> - There's no clear way to obtain command error status. Per Anna's
> suggestion, we used
> 
> 	; echo "Exit status is $?"
> 
> but assumes such output is not shown by the program, and the last line of
> program output ends with newline, that we have a Linux target, and so on.
> - In addition to program output, there is output produced when logging in
> into the remote system, so we have to use some kludges to filter that out.
> 
> It seems to me that it would be best if this complexity (which seems specific
> to different connections methods) be incapsualted inside RSE. So, there
> should be an API to run a command, which can be implemented:
> 
> - Using SSH 'exec' channel for SSH connections
> - Using the above "echo" trick for telnet connections
> - Using whatever magic is necessary for DStore, or Windows, or other,
> connection types.
> 
> Does this seem to make sense? Shall I file a bug?
> 
> Thanks,
> 
> --
> Vladimir Prus
> CodeSourcery / Mentor Graphics
> +7 (812) 677-68-40
> _______________________________________________
> dsdp-tm-dev mailing list
> dsdp-tm-dev@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/dsdp-tm-dev