Add connectrpc/gosimple (#2023)

This PR adds a new connectrpc-go plugin with the `simple` option.

Author: mfridman

plugins/connectrpc/gosimple/source.yaml

@@ -0,0 +1,4 @@
+source:
+  github:
+    owner: connectrpc
+    repository: connect-go

plugins/connectrpc/gosimple/v1.19.0/.dockerignore

@@ -0,0 +1,2 @@
+*
+!Dockerfile

plugins/connectrpc/gosimple/v1.19.0/Dockerfile

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+# syntax=docker/dockerfile:1.18
+FROM --platform=$BUILDPLATFORM golang:1.25.1-bookworm AS build
+
+ARG TARGETOS TARGETARCH
+ENV CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH
+
+RUN --mount=type=cache,target=/go/pkg/mod \
+    go install -ldflags="-s -w" -trimpath connectrpc.com/connect/cmd/[email protected] \
+ && mv /go/bin/${GOOS}_${GOARCH}/protoc-gen-connect-go /go/bin/protoc-gen-connect-go || true
+
+FROM scratch
+COPY --from=build --link --chown=root:root /etc/passwd /etc/passwd
+COPY --from=build --link /go/bin/protoc-gen-connect-go /
+USER nobody
+ENTRYPOINT [ "/protoc-gen-connect-go" ]

plugins/connectrpc/gosimple/v1.19.0/buf.plugin.yaml

@@ -0,0 +1,21 @@
+version: v1
+name: buf.build/connectrpc/gosimple
+plugin_version: v1.19.0
+source_url: https://github.com/connectrpc/connect-go
+integration_guide_url: https://connectrpc.com/docs/go/getting-started
+description: Generates client and server stubs with simple function signatures for connectrpc.com/connect. Compatible with the gRPC, gRPC-Web, and Connect RPC protocols.
+deps:
+  - plugin: buf.build/protocolbuffers/go:v1.36.9
+output_languages:
+  - go
+registry:
+  go:
+    min_version: "1.24"
+    deps:
+      - module: connectrpc.com/connect
+        version: v1.19.0
+  opts:
+    - paths=source_relative
+    - simple
+spdx_license_id: Apache-2.0
+license_url: https://github.com/connectrpc/connect-go/blob/v1.19.0/LICENSE

tests/testdata/buf.build/connectrpc/gosimple/v1.19.0/eliza/plugin.sum

@@ -0,0 +1 @@
+h1:YRv9BxkN+euOH9Z4cbDJsBcE7PV5bMc/CRdumQ7YG7g=

tests/testdata/buf.build/connectrpc/gosimple/v1.19.0/petapis/plugin.sum

@@ -0,0 +1 @@
+h1:2OQOwNtie1hgyVA/bEr78VRW00AAnq+bUNLs4XkVLTw=