feat: add multi-file merge support to generate command

[kachawla]

Overview

Update the existing generate subcommand of manifest-to-bicep to accept multiple manifest files. When given multiple YAML manifests with the same namespace, their Types maps are merged into a single output (types.json, index.json, index.md).

This supports per-type manifest files (e.g. containers.yaml, routes.yaml) as introduced by the automated resource type registration design, where each file defines a single resource type within a namespace.

Backward compatible: single-file usage works exactly as before.

Part of Unified Bicep extension publishing (PR 1/4). See design doc.

Changes

• bicep-tools/cmd/manifest-to-bicep/main.go: Updated generate to accept <manifest1> [manifest2...] <output> (last arg is always output dir). Added mergeManifestFiles() that validates same namespace and rejects duplicate types.

Usage

Single file (backward compatible):

go run ./bicep-tools/cmd/manifest-to-bicep generate containers.yaml /tmp/out

Multiple files (merge into one output):

go run ./bicep-tools/cmd/manifest-to-bicep generate containers.yaml routes.yaml persistentVolumes.yaml /tmp/out

[Copilot]

Pull request overview

Adds a generate-types subcommand to manifest-to-bicep for producing only types.json, including support for merging multiple manifests that share a namespace.

Changes:

• Registers the new generate-types Cobra subcommand.
• Adds RunGenerateTypes, manifest merge logic, and types.json-only output handling.

[kachawla]

Re: Copilot's comment on the generate-bicep-types Makefile target reference in the help text (line 145)

Good catch. Removed the forward reference to the generate-bicep-types Makefile target (which is updated in PR 2). The help text now describes the intended usage pattern generically without referencing a target that doesn't exist yet in this PR's scope.

Fixed in the latest force-push.

[Copilot]

Pull request overview

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

Comments suppressed due to low confidence (1)

bicep-tools/cmd/manifest-to-bicep/main.go:121

• This multi-file path still uses the full extension generator, which produces types.json, index.json, and index.md. The requested generate-types behavior needs a types-only path; otherwise callers that are aggregating namespace-specific types.json files will also overwrite or create index artifacts that should be rebuilt separately.

		result, err = generator.GenerateFromString(merged)

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.