Publish echo server binary to bins releases

[Copilot]

The echo server (rust/echo/) is used by envoyproxy/examples but currently rebuilt from source. Publish pre-built binaries in bins releases alongside glint.

Changes

.github/workflows/rust.yml

• Added build, strip, and upload steps for toolshed-echo (amd64/arm64)
• Artifacts: rust-artifacts-echo-{version}-{arch}

Scope

Bazel integration deliberately omitted - echo is not consumed by bazel yet. No changes to:

• bazel/versions.bzl (no SHA tracking)
• .github/workflows/_release.yml (no version input or SHA updates)

When bazel starts consuming echo, add SHA tracking in a separate PR.

Original prompt

Summary

The glint Rust binary is currently published as part of the bins release, but the echo server (in rust/echo/) is not. The echo server is used by envoyproxy/examples and currently has to be rebuilt from source every time, which slows things down significantly.

Goal

Publish the echo server binary in the same way that glint is published, so it can be downloaded as a pre-built binary rather than compiled from source.

What needs to be done

1. Update .github/workflows/rust.yml

Add build, strip, rename, and upload steps for the echo server binary, similar to how glint is handled:

• Build echo with cargo build --release -p toolshed-echo
• Get the echo version from rust/echo/Cargo.toml using cargo metadata
• Strip the binary with strip rust/target/release/toolshed-echo
• Rename to echo-{version}-{arch} format (e.g., echo-0.1.0-amd64, echo-0.1.0-arm64)
• Upload as artifact with name pattern rust-artifacts-echo-{version}-{arch}

The build matrix already handles both amd64 (ubuntu-24.04) and arm64 (ubuntu-24.04-arm) architectures.

2. Update bazel/versions.bzl

Add SHA256 hashes for the echo binary, following the same pattern as glint:

VERSIONS = {
    # ... existing fields ...
    "echo_sha256": {
        "amd64": "",  # Will be populated after first release
        "arm64": "",  # Will be populated after first release
    },
}

3. Update .github/workflows/_release.yml

Extend the bazel release logic that updates glint SHAs to also handle echo SHAs. Look at the existing bins-updates step that processes glint and add similar logic for echo.

Reference

The current glint publishing implementation can be found in:

• .github/workflows/rust.yml (lines 91-114) - build and upload
• bazel/versions.bzl (lines 11-13) - SHA256 hashes
• .github/workflows/_release.yml (lines 224-228) - SHA update logic during bazel release

The echo server source is at rust/echo/ with package name toolshed-echo (version 0.1.0).

This pull request was created from Copilot chat.

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[netlify]

✅ Deploy Preview for nifty-bassi-e26446 ready!

Name	Link
🔨 Latest commit	c4004a4
🔍 Latest deploy log	https://app.netlify.com/projects/nifty-bassi-e26446/deploys/698200dfee79000008e37b44
😎 Deploy Preview	https://deploy-preview-3688--nifty-bassi-e26446.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.