[Jenkins-events] QR code on name tags

[Kohsuke Kawaguchi]

There was an off-list conversation about how to connect sponsors to 
attendees.

The last year several people felt really mad about one of the sponsors 
calling them up unsolicited, so this year we've added the opt-out 
option. Then we've heard from sponsors that it got in the way of 
connecting with people who they had good conversations in the booth.

So the topic of QR code came up once again. Alyssa said this off-list:

> I did give this some thought and also thought the QR code would be the
> most cost effective way to do this. My concern is that each QR code
> would need to be specialized to each attendees w/ their specific
> contact info...600 names can be a daunting task to do manually.  I'm
> sure there's an app out there that can automate the set up process..if
> anyone has recommendation for an app pls let me know.

I haven't looked around carefully, but I'm pretty sure I can find a 
library that generates a PNG image of the QR code for arbitrary payload.

So the only remaining question to me is, how to integrate that with the 
current way Alyssa prepares name cards --- we need to insert the QR code 
image en-mass.

I suspect generating HTML would be the easiest. The layout will probably 
be imprecise, but I don't think it'll be an issue.

Alternatively, maybe we can hack up a quick PDF generation with a 
library like [1] and that'd give all the control we need with more room 
for extension?


[1] http://pdfbox.apache.org/
-- 
Kohsuke Kawaguchi | CloudBees, Inc. | http://cloudbees.com/
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