(Tl;dr: The original author of this patch was axel@mozilla.com (:pike).
This patch has been modified to run in production automation.)
Cross-channel takes all the en-US strings from the shipping train branches
and consolidates them into a single repository. Originally, this ran out of
https://hg.mozilla.org/users/axel_mozilla.com/cross-channel-experimental/ .
The original version was coupled tightly with specific hg internals, making
hg upgrades fragile. Axel wrote
https://bug1659691.bmoattachments.org/attachment.cgi?id=9170636 before
handing off project ownership; this is the original patch to stop replaying
history to simplify the logic.
This patch also automates the previously manual preparation steps, allows
for running both in automation and locally, and adds retries for production
robustness.
Differential Revision: https://phabricator.services.mozilla.com/D116537