bevy/.github/workflows
François d3ae816e3e Ci stability and speed improvements (#2551)
# Objective

- There are a few random failures in CI, mostly due to contacting crates.io or checking for deadlinks
- CI can take some time, more than 20 minutes for a full status
- A clippy/format issue stops running tests on other platforms


## Solution

- Use GitHub cache for cargo artefacts
  - This speeds up builds and reduce dependencies on outside world
- Reorder and add dependencies between short jobs. They are still setup to run even if one of the dependency failed
  - This reduce the number of parallel jobs that are running for one PR. On GitHub free tier, we're limited to 20.
- Split CI checks (format & clippy) in its own job
  - This speeds up test jobs, and allow us to not kill all platform tests for a format issue
- Retry in case of dead links check failure
  - Internet is just that kind of place where things may seem dead at some point but back alive 5 seconds later

## Before

<img width="1062" alt="Screenshot 2021-07-27 at 01 18 52" src="https://user-images.githubusercontent.com/8672791/127071973-9a2c5ce8-c871-4f8d-9b17-08871824b6c4.png">

## After (with all cache live)

<img width="1063" alt="Screenshot 2021-07-27 at 01 18 28" src="https://user-images.githubusercontent.com/8672791/127071986-767a7e65-53ed-45fd-8d75-51a571f0b851.png">
2021-07-27 02:01:11 +00:00
..
ci.yml Ci stability and speed improvements (#2551) 2021-07-27 02:01:11 +00:00
dependencies.yml Exclude some Branches from running CI (#2344) 2021-06-22 07:59:37 +00:00
ios.yml Bump actions/cache from 2.1.5 to 2.1.6 (#2284) 2021-06-01 20:06:33 +00:00
label.yml update to major version 3 of action labeler (#2340) 2021-06-26 01:53:10 +00:00