Name release branches just after major.minor (#10013)

With the prior format, 1.33.0 / 1.33.1 / 1.33.2 got separate branches:

    release-v1.33.0
    release-v1.33.1
    release-v1.33.2

Under the new model, all three would share a common branch:

    release-v1.33

As before, RCs and actual releases exist as tags on these branches.

This better reflects our support model, e.g., that the "1.33" series had
a formal release followed by two patches / updates.

Signed-off-by: Dan Callahan <danc@element.io>
pull/10141/head
Dan Callahan 2021-06-08 11:44:50 +01:00 committed by GitHub
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commit 7dc14730d9
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3 changed files with 6 additions and 5 deletions

1
changelog.d/10013.misc Normal file
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@ -0,0 +1 @@
Simplify naming convention for release branches to only include the major and minor version numbers.

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@ -122,15 +122,15 @@ So, what counts as a more- or less-stable branch? A little reflection will show
that our active branches are ordered thus, from more-stable to less-stable:
* `master` (tracks our last release).
* `release-vX.Y.Z` (the branch where we prepare the next release)<sup
* `release-vX.Y` (the branch where we prepare the next release)<sup
id="a3">[3](#f3)</sup>.
* PR branches which are targeting the release.
* `develop` (our "mainline" branch containing our bleeding-edge).
* regular PR branches.
The corollary is: if you have a bugfix that needs to land in both
`release-vX.Y.Z` *and* `develop`, then you should base your PR on
`release-vX.Y.Z`, get it merged there, and then merge from `release-vX.Y.Z` to
`release-vX.Y` *and* `develop`, then you should base your PR on
`release-vX.Y`, get it merged there, and then merge from `release-vX.Y` to
`develop`. (If a fix lands in `develop` and we later need it in a
release-branch, we can of course cherry-pick it, but landing it in the release
branch first helps reduce the chance of annoying conflicts.)
@ -145,4 +145,4 @@ most intuitive name. [^](#a1)
<b id="f3">[3]</b>: Very, very occasionally (I think this has happened once in
the history of Synapse), we've had two releases in flight at once. Obviously,
`release-v1.2.3` is more-stable than `release-v1.3.0`. [^](#a3)
`release-v1.2` is more-stable than `release-v1.3`. [^](#a3)

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@ -139,7 +139,7 @@ def run():
click.get_current_context().abort()
# Switch to the release branch.
release_branch_name = f"release-v{base_version}"
release_branch_name = f"release-v{current_version.major}.{current_version.minor}"
release_branch = find_ref(repo, release_branch_name)
if release_branch:
if release_branch.is_remote():