async script on trigger

[hampsterx]

Hi All,

Might be more of a linux question than plastic but here goes.

I have a bash script that is being run on a plastic trigger (after-checkin). Basically it has some curl commands in there. I have set the flags on curl to limit connection time to 1 second and request time to 1 second. However, within plastic you can notice there is a delay when you checkin. It's not a big problem but it would be better if the script (or the curl commands) were run async so it didn't hold up the plastic client.

I can understand *before* triggers needing to wait for the script finishes for a result to determine whether to cancel the operation but *after* doesn't make much sense to me.

Anyhoo, someone got a quick fix?

PS Very shortly I want to write up our plastic workflow/setup for the benefit of other web development teams, very satisfied with plastic

TiM

[manu]

Mmmmmmm if you run from your trigger program a command with "nohup" first like this "nohup myAsycnProgram.sh &" I think your main trigger program can end and your Async program can continue.... Does it makes sense?

PS Very shortly I want to write up our plastic workflow/setup for the benefit of other web development teams, very satisfied with plastic

Cool!!! Thanks!!!!

[hampsterx]

*bingo*, perfect thnx. Surprised I didn't know this already but linux is not my forte.

[manu]

No problem!

In windows/linux with c#/mono is easier, you can use the "Process" class.

[hampsterx]

oops, seems I never got this thing working correctly and it was/is always waiting on script to finish.

 

Can you confirm plastic is not waiting for process to finish. 

 

If I try

 

 

"nohup myAsycnProgram.sh &"

 

It still waits for it to finish.

 

Even if you try one script triggering another. it doesnt work either..

 

 

root@plastic:/opt# cm listtriggers

     1 update subs     /opt/pl.sh      beta       after-checkin

 

/opt/pl.sh

 

#!/bin/sh

nohup /opt/plastic.sh &

exit 0

 

 

If I run this from command line it always finishes right away, but from trigger it does not !

 

Thnx, TiM

 

[manu]

Can you check if the "/opt/pl.sh" keeps running?

[Gerald]

I also want to run a Python script after checkin. Really after because I want to retrieve to file changes of the checkin. Therefore I run the cm log command within the script. But at that time when the script runs the cm command the changeset doesn't exist yet. 

So, i tried to do this on Windows using start (asynchronous start of a process) but the plastic client still wait's until the script is finished.

 

In the trigger i start a bat file that contains "start C:\python27\python.exe E:\aftercheckin.py"

 

Why does the after-checkin trigger wait until all triggered programs are completed before commiting the changeset?

[manu]

We'll test it ASAP.

[calbzam]

Hello,

 

I´ve tested some possibilities to run async after-checkin triggers:

- In C# you can use the Process class. I´ve made some examples and the trigger works asynchronous from the checkin ( http://www.dotnetperls.com/process-start )

- In Python exists a Process class, but it seems that the trigger doesn't work asynchronous (http://docs.python.org/dev/library/multiprocessing.html)

- If you are running python scripts, you may find this post interesting. It explains how to run a phyton script from a C# Process class (http://stackoverflow.com/questions/3823880/python-c-is-ironpython-absolutely-necessary).

 

Best regards,

carlos

[ydkim]

Hello,

 

Is there any other way? 

 

I don't know C#...

 

 

Cheers,

YD

[calbzam]

Hi,

 

You can create the script in any other language. In this post we explained the possibilities to run async after-checkin triggers in C# or Python using Process class, but you can find a similar way in other languages.

 

Regards,

Carlos