38b6701e7a
* Extract LS context propagation into configurable propagator class * Extract context prop test cases to LightStepPropagator spec * Make LightStepPropagator easier to subclass Constant lookup will search in Module.nesting before looking up the inheritance chain, which makes constants hard to override when subclassing. This commit prefixes constants in the LightStep propagator with self.class in order to steer lookup to the inheritance chain. * Introduce B3 Propagator This commit introduces a B3 Propagator where keys are properly injected and extracted under the proper names. Special handling of the trace id and sampled flag will come in subsequent commits. * Propagate 16 byte trace ids for B3; use 16 byte ids internally * Honor and propagate sampled flag for B3 * Clean up tests * Specify default propagator for Tracer#configure * Test against currently maintained Rubies This updates our build matrix to test against Ruby versions that are still under maintenance by the Ruby core team. * The mutating tr! and downcase! methods are not chainable; don't chain them * Make it easier to specify a propgator * Update changelog for B3 |
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