tree b2de0e65adfb4027c5a55ff8b572298f61e369de
parent dec7a67a3e980f6f5e0d170919da87e1bffe923f
author cojenco <cathyo@google.com> 1627070531 -0700
committer GitHub <noreply@github.com> 1627070531 +0000
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fix(storage): revise Reader to send XML preconditions (#4479)

This updates `Reader` to send precondition request headers to fit the XML API used for downloads. 

- adds a new function `setConditionsHeaders()` that parses `Conditions` and sets the corresponding precondition headers
- revises `NewRangerReader` to call `setConditionsHeaders()`
- if an object version is specified via `generation`, include `generation` as query string parameters
- updates tests

Fixes #4470