1190005 - Replace /repo/hg/scripts/hg_require_single_head references with single_head_per_branch Python hook

Status: RESOLVED FIXED

(Developer Services :: Mercurial: hg.mozilla.org, defect)

Description

[Gregory Szorc [:gps]]

As part of standing up a fresh server, I discovered a reference to a shell hook at /repo/hg/scripts/hg_require_single_head. This file isn't being installed by the new Ansible config and nor should it be. The contents of the file on hgssh say it is deprecated. Besides, we should be using Python hooks for everything.

So far I've only seen this on build/tools. I'm going to manually update all references to point to the nearly equivalent single_head_per_branch Python hook. I say "nearly" because this shell hook appears to actually be enforcing one head period. single_head_per_branch is good enough for other repos. I argue it is good enough for build/tools as well.

Comment 1

[Gregory Szorc [:gps]]

The old hook is also referenced by:

* build/buildbot
* build/fork-hg-git
* schema-validation
* SeaMonkey/tools
* tamarin-redux

I'm going to change these references as well.

Comment 2

[Gregory Szorc [:gps]]

In the case of build/buildbot, the hook is commented out:

#Commented out for Bug 617041
#pretxnchangegroup.a_singlehead = /repo/hg/scripts/hg_require_single_head

I'm just going to remove those lines.

Comment 3

[Gregory Szorc [:gps]]

This is done. I also synced the hgrc files to hgweb machines for impacted repos.