story(issue-15): create new module for protobuf

internal/ci/dagger.json

@@ -12,6 +12,10 @@
     {
       "name": "go-tests",
       "source": "../../go/tests"
+    },
+    {
+      "name": "protobuf-tests",
+      "source": "../../protobuf/tests"
     }
   ]
 }

internal/ci/tests.go

@@ -22,11 +22,13 @@ func (m *Ci) Tests() *Tests {
 func (t *Tests) All(ctx context.Context) error {
 	ep := pool.New().WithErrors().WithContext(ctx)
 
+	ep.Go(dag.ArchiveTests().All)
+
 	ep.Go(dag.GoTests(dagger.GoTestsOpts{
 		Version: "latest",
 	}).All)
 
-	ep.Go(dag.ArchiveTests().All)
+	ep.Go(dag.ProtobufTests().All)
 
 	return ep.Wait()
 }

protobuf/.gitattributes

@@ -0,0 +1,4 @@
+/dagger.gen.go linguist-generated
+/internal/dagger/** linguist-generated
+/internal/querybuilder/** linguist-generated
+/internal/telemetry/** linguist-generated

protobuf/.gitignore

@@ -0,0 +1,5 @@
+/dagger.gen.go
+/internal/dagger
+/internal/querybuilder
+/internal/telemetry
+/.env

protobuf/dagger.json

@@ -0,0 +1,13 @@
+{
+  "name": "protobuf",
+  "engineVersion": "v0.18.12",
+  "sdk": {
+    "source": "go"
+  },
+  "dependencies": [
+    {
+      "name": "archive",
+      "source": "../archive"
+    }
+  ]
+}

protobuf/go.mod

@@ -0,0 +1,56 @@
+module dagger/protobuf
+
+go 1.24.4
+
+require (
+	github.com/99designs/gqlgen v0.17.75
+	github.com/Khan/genqlient v0.8.1
+	github.com/containerd/platforms v0.2.1
+	github.com/vektah/gqlparser/v2 v2.5.28
+	go.opentelemetry.io/otel v1.36.0
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.12.2
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.12.2
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.32.0
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.32.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.32.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.32.0
+	go.opentelemetry.io/otel/log v0.12.2
+	go.opentelemetry.io/otel/metric v1.36.0
+	go.opentelemetry.io/otel/sdk v1.36.0
+	go.opentelemetry.io/otel/sdk/log v0.12.2
+	go.opentelemetry.io/otel/sdk/metric v1.36.0
+	go.opentelemetry.io/otel/trace v1.36.0
+	go.opentelemetry.io/proto/otlp v1.6.0
+	golang.org/x/sync v0.15.0
+	google.golang.org/grpc v1.73.0
+)
+
+require (
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
+	github.com/cenkalti/backoff/v5 v5.0.2 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.0 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/sosodev/duration v1.3.1 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.32.0 // indirect
+	golang.org/x/net v0.41.0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/text v0.26.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250519155744-55703ea1f237 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250519155744-55703ea1f237 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
+)
+
+replace go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc => go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.12.2
+
+replace go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp => go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.12.2
+
+replace go.opentelemetry.io/otel/log => go.opentelemetry.io/otel/log v0.12.2
+
+replace go.opentelemetry.io/otel/sdk/log => go.opentelemetry.io/otel/sdk/log v0.12.2

protobuf/go.sum

@@ -0,0 +1,105 @@
+github.com/99designs/gqlgen v0.17.75 h1:GwHJsptXWLHeY7JO8b7YueUI4w9Pom6wJTICosDtQuI=
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+github.com/Khan/genqlient v0.8.1/go.mod h1:R2G6DzjBvCbhjsEajfRjbWdVglSH/73kSivC9TLWVjU=
+github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883 h1:bvNMNQO63//z+xNgfBlViaCIJKLlCJ6/fmUseuG0wVQ=
+github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
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+github.com/cenkalti/backoff/v5 v5.0.2 h1:rIfFVxEf1QsI7E1ZHfp/B4DF/6QBAUhmgkxc0H7Zss8=
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+google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

protobuf/golang.go

@@ -0,0 +1,113 @@
+// Copyright (c) 2025 Z5Labs and Contributors
+//
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"dagger/protobuf/internal/dagger"
+)
+
+type Go struct {
+	Protobuf *Protobuf
+}
+
+// Install the protoc-gen-go plugin.
+func (m *Protobuf) Go(
+	version string,
+) *Go {
+	const name = "protoc-gen-go"
+
+	archiveType := "tar.gz"
+	if m.OS == "windows" {
+		archiveType = "zip"
+	}
+
+	plugin := dag.HTTP(fmt.Sprintf(
+		"https://github.com/protocolbuffers/protobuf-go/releases/download/%s/%s.%s.%s.%s.%s",
+		version,
+		name,
+		version,
+		m.OS,
+		m.Arch,
+		archiveType,
+	))
+
+	var dir *dagger.Directory
+	switch archiveType {
+	case "zip":
+		dir = dag.Archive().Zip().Extract(plugin)
+	case "tar.gz":
+		dir = dag.Archive().Tar().Extract(plugin, dagger.ArchiveTarExtractOpts{
+			Gzip: true,
+		})
+	}
+
+	m = m.WithPlugin(name, dir.File(name))
+
+	return &Go{
+		Protobuf: m,
+	}
+}
+
+// Generate Go code.
+func (p *Protoc) Go(
+	outDir string,
+
+	// +optional
+	opt []string,
+) *Protoc {
+	p.Generators = append(p.Generators, generator{
+		Name:   "go",
+		OutDir: outDir,
+		Opts:   opt,
+	})
+
+	return p
+}
+
+// Install the protoc-gen-go-grpc plugin.
+func (g *Go) Grpc(
+	ctx context.Context,
+
+	// +default="latest"
+	version string,
+) (*Go, error) {
+	const name = "protoc-gen-go-grpc"
+
+	c := dag.Container().
+		From("golang:alpine").
+		WithExec([]string{"go", "install", fmt.Sprintf("google.golang.org/grpc/cmd/%s@%s", name, version)})
+
+	binPath, err := c.
+		WithExec([]string{"which", name}).
+		Stdout(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	g.Protobuf = g.Protobuf.WithPlugin(name, c.File(strings.TrimSpace(binPath)))
+
+	return g, nil
+}
+
+// Generate GRPC Go code.
+func (p *Protoc) GoGrpc(
+	outDir string,
+
+	// +optional
+	opt []string,
+) *Protoc {
+	p.Generators = append(p.Generators, generator{
+		Name:   "go-grpc",
+		OutDir: outDir,
+		Opts:   opt,
+	})
+
+	return p
+}