azd x - fix HTML-escaping of <, >, & in registry.json on publish

[Copilot]

azd x publish rewrote literal <, >, and & in cli/azd/extensions/registry.json to \u003c, \u003e, \u0026 on every republish, producing noisy diffs in registry PRs. Root cause: json.MarshalIndent HTML-escapes by default with no opt-out.

Changes

• internal/cmd/publish.go — saveRegistry now uses a json.Encoder with SetEscapeHTML(false), writing the three characters literally.
• internal/helpers.go — Applied the same encoder to the empty-registry writer in CreateLocalRegistry for consistency.
• internal/cmd/publish_test.go — Added a test asserting literal characters survive a round-trip and are not escaped.

func saveRegistry(path string, registry *extensions.Registry) error {
	var buf bytes.Buffer
	encoder := json.NewEncoder(&buf)
	encoder.SetEscapeHTML(false)
	encoder.SetIndent("", "  ")
	if err := encoder.Encode(registry); err != nil {
		return err
	}
	return os.WriteFile(path, buf.Bytes(), osutil.PermissionFile)
}

Output is identical to before except <, >, & are literal and Encoder.Encode appends a trailing newline (conventional for files).

[github-actions]

📋 Milestone: June 2026

This work is tracked for June 2026. The team will review it soon!

[Copilot]

Pull request overview

This PR updates the microsoft.azd.extensions developer kit publishing flow to avoid JSON HTML-escaping (<, >, &) when writing registry.json, preventing noisy diffs during republish and aligning local registry creation with the same behavior.

Changes:

• Switch registry writing to json.Encoder with SetEscapeHTML(false) for both publish-time saves and local registry initialization.
• Add a regression test to ensure <, >, and & remain literal (and that the file ends with a newline).
• Bump the extension version to 0.11.1 and add a changelog entry.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
cli/azd/extensions/microsoft.azd.extensions/internal/cmd/publish.go	Writes registry.json via json.Encoder with HTML escaping disabled.
cli/azd/extensions/microsoft.azd.extensions/internal/helpers.go	Applies the same non-HTML-escaping JSON encoder to local registry creation.
cli/azd/extensions/microsoft.azd.extensions/internal/cmd/publish_test.go	Adds a test to assert <, >, & are not escaped and output ends with a newline.
cli/azd/extensions/microsoft.azd.extensions/version.txt	Bumps extension version to 0.11.1.
cli/azd/extensions/microsoft.azd.extensions/extension.yaml	Updates the extension manifest version to 0.11.1.
cli/azd/extensions/microsoft.azd.extensions/CHANGELOG.md	Adds a 0.11.1 changelog entry describing the fix.