Allow users to easily share job output on GitHub

[Manfred]

• As a user I want to share job output on GitHub so I can show performance measurements related to my work.

We want to make it easy to share job output on issues and pull requests on GitHub.

In the past this was implemented by letting the PerfCheck GitHub user post to pull requests or issues. We found that this caused a lot of noise on the tickets as people were repeatedly posting information.

It would probably be better if they could add a single piece of formatting to their PR description or comment with an SVG image link or something similar which would present the output with a link back to the full output.

• Show results for a specific job: http://perf-check/jobs/42.svg
• Show the latest results for a branch: http://perf-check/branches/mst/optimize/latest.svg

![http://perf-check/jobs/42.svg](http://perf-check/jobs/42)

Optionally we can also have a button somewhere that instructs the PerfCheck bot to look for a PR for the benchmarked branch and add a comment with this markup.

[sudara]

present the output with a link back to the full output.

I'm currently mulling over whether we should actually try and go a very minimal "badge" route (can play on https://shields.io to imagine)

Given that there can be multiple urls tested, we'd probably want a badge per url. And URLs are long, so maybe this is a bad idea.

Optionally we can also have a button somewhere that instructs the PerfCheck bot to look for a PR for the benchmarked branch and add a comment with this markup.

+1 for this. I'm thinking we should preview the badge on the job, give them a button to "copy url to badge" and "post badge to PR".

[sudara]

A problem with pill-like badges is I'm loathe to lose fidelity on "absolute" problems just because relative performance doesn't change.

However, we could have a very simple representation, with ability to show 1 "absolute" result on the right side.

Prob better to actually design a multi-url "banner" vs. a badge though.