## Summary
The `build` CI job on `main` is failing with:
```
ERROR: Computed invalid windows version format: 2.32.0-rc.0.1
```
This started when the `v2.32.0-rc.0` tag was created, making `git
describe` produce versions like `2.32.0-rc.0-devel+4f571f8ff`.
## Root cause
`scripts/build_go.sh` converts the version to a Windows-compatible
`X.Y.Z.{0,1}` format by stripping pre-release segments. It uses
`${var%-*}` (shortest suffix match), which only removes the last
`-segment`. For RC versions this leaves `-rc.0` intact:
```
2.32.0-rc.0-devel → strip %-* → 2.32.0-rc.0 → + .1 → 2.32.0-rc.0.1 ✗
```
## Fix
Switch to `${var%%-*}` (longest suffix match) so all pre-release
segments are stripped from the first hyphen onward:
```
2.32.0-rc.0-devel → strip %%-* → 2.32.0 → + .1 → 2.32.0.1 ✓
```
Verified all version patterns produce valid output:
| Input | Output |
|---|---|
| `2.32.0` | `2.32.0.0` |
| `2.32.0-devel` | `2.32.0.1` |
| `2.32.0-rc.0-devel` | `2.32.0.1` |
| `2.32.0-rc.0` | `2.32.0.1` |
Fixes
https://github.com/coder/coder/actions/runs/23511163474/job/68434008241
Garrett Delfosse
7f75670f8d