Add webhook/trigger events

[project-satisfy]

Add webhook/trigger events

[cumuru]

Some input for implementation:

• satis consumes (on CLI) a param --repository-url=ssh://[email protected]/pathto/repo.git to update a single repo only
• working Regex to normalize SSH repo uri (Github):
  preg_replace('/^(\w+@)?([\w\.]+)(:\d+)?:(.*)$/', 'ssh://$1$2$3/$4')
  ($1 = user, $2 = host, $3 = port, $4 = repository path)
• composer package dealing with Github API (signature validation and payload normalization): https://packagist.org/packages/swop/github-webhook
• One could iterate over satis.json‘s repositories to whitelist incoming push events.

[ramunasd]

Bitbucket webhook example:
mtomala@a10c1df

A lot of duplicated code, but principe on itself is clear.

[ramunasd]

Currently satis build with repository filter throws exception.
composer/satis#493

[ramunasd]

Implemented & tested against real VCS.