Fixes two bugs in the release tool.
## 1. RC tags chosen over release tags on release branches
`allSemverTags()` and `mergedSemverTags()` rely on `git tag
--sort=-v:refname` for ordering. Git's version sort treats pre-release
suffixes (e.g. `-rc.0`) as *greater* than the base release version,
which is the opposite of semver where `v2.32.0 > v2.32.0-rc.0`.
When the release branch code iterates the tag list looking for the first
matching `major.minor`, it finds the RC tag first, leading to incorrect
version suggestions (e.g. suggesting `v2.32.0` again instead of
`v2.32.1`).
**Fix:** Re-sort parsed tags using the existing `GreaterThan` method via
a new `sortVersionsDesc` helper.
## 2. Misleading mainline changelog blurb on ESR/older branch patches
When releasing a patch on an older branch (e.g. `release/2.29` for ESR),
the version is neither mainline nor stable. Declining the stable prompt
would always produce the mainline changelog note ("This is a mainline
Coder release..."), which is incorrect.
**Fix:** Only emit the mainline note when the version's minor matches
the current mainline series. For older branches the changelog omits the
note entirely.
> Generated by Coder Agents
This adds full RC release support to the release scripts and GitHub
Actions workflow. Previously, the tooling only supported stable and
mainline releases with strict vMAJOR.MINOR.PATCH semver tags.
Changes:
- scripts/releaser/version.go: Add Pre field to version struct for
prerelease suffixes (e.g. "rc.0"), update regex, parsing, String(),
comparison methods, and add IsRC()/rcNumber() helpers.
- scripts/releaser/release.go: Detect RC branches (release/X.Y-rc.N),
suggest RC version numbers, auto-set "rc" channel (skipping
stable/mainline prompt), add RC advisory to release notes, skip docs
update for RC releases.
- .github/workflows/release.yaml: Add "rc" channel option, fix branch
derivation for RC tags (v2.32.0-rc.0 -> release/2.32-rc.0 instead of
broken release/2.32.0-rc), skip homebrew/winget/package publishing for
RC releases.
- scripts/release/publish.sh: Add --rc flag, pass --prerelease to gh
release create for RC releases.
- scripts/releaser/version_test.go: Add comprehensive unit tests for
version parsing, string formatting, IsRC, rcNumber, GreaterThan, and
Equal with RC versions.
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Garrett Delfosse