travis-rollout

Enable by setting an env var ROLLOUT and setting ENV to production or staging.

Usage

args = {
  uid:  1
  user: 'svenfuchs',
  repo: 'travis-ci/travis-hub'
}

Rollout.run(:feature, args) do
  # only runs when active
end

This will match:

• uid against the percentage ROLLOUT_FEATURE_PERCENT
• remaining arg values against the env vars ROLLOUT_FEATURE_USERS and ROLLOUT_FEATURE_REPOS (as comma separated values)

For example:

ROLLOUT=feature_foo
ROLLOUT_FEATURE_FOO_OWNERS=joecorcoran,svenfuchs
ROLLOUT_FEATURE_FOO_PERCENT=5

The uid passed can be a string or integer. For a string it will calculate the crc32 to turn it into an integer.

If a redis instance is passed as an option it will additionally check redis:

Travis::Rollout.run(feature, args.merge(redis: redis)) do
  # only runs when active
end

It will use the value of the env var ROLLOUT as a namespace (e.g. sync), and check the keys:

• enabling: sync.rollout.enabled
• args: sync.rollout.users, sync.rollout.repos, sync.rollout.owners
• percentage: sync.rollout.percent

Values stored in Redis will take precedence over values stored in the ENV.