init intro toolchain

.gitattributes

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

.gitignore

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

README.md

@@ -0,0 +1,37 @@
+# Intro Toolchain
+
+This [toolchain](https://docs.dagger.io/core-concepts/toolchains) helps you get started with Dagger in your project.
+
+It provides [checks](https://docs.dagger.io/core-concepts/checks) to walk you through onboarding Dagger in your project.
+
+## Get started
+
+1. [Install Dagger](https://docs.dagger.io/getting-started/installation)
+
+2. Install this [toolchain](https://docs.dagger.io/core-concepts/toolchains) in your project
+
+```shell
+# From the root of your projects repository
+dagger init
+
+dagger toolchain install github.com/dagger/intro
+```
+
+3. List the [checks](https://docs.dagger.io/core-concepts/checks) this toolchain provides:
+
+```
+dagger check -l
+
+Name                      Description
+install-intro             Install your first Toolchain
+login-to-cloud            Login to Dagger Cloud with dagger login
+install-more-toolchains   Install your next toolchain
+```
+
+4. Execute the [checks](https://docs.dagger.io/core-concepts/checks)
+
+```
+dagger check
+```
+
+The failed checks will provide instructions to assist you through your dagger onboarding!

dagger.json

@@ -0,0 +1,7 @@
+{
+  "name": "intro",
+  "engineVersion": "v0.19.10",
+  "sdk": {
+    "source": "go"
+  }
+}

go.mod

@@ -0,0 +1,50 @@
+module dagger/intro
+
+go 1.25.5
+
+require (
+	github.com/99designs/gqlgen v0.17.81
+	github.com/Khan/genqlient v0.8.1
+	github.com/vektah/gqlparser/v2 v2.5.30
+	go.opentelemetry.io/otel v1.38.0
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.14.0
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.14.0
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.38.0
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.38.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.38.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.38.0
+	go.opentelemetry.io/otel/log v0.14.0
+	go.opentelemetry.io/otel/metric v1.38.0
+	go.opentelemetry.io/otel/sdk v1.38.0
+	go.opentelemetry.io/otel/sdk/log v0.14.0
+	go.opentelemetry.io/otel/sdk/metric v1.38.0
+	go.opentelemetry.io/otel/trace v1.38.0
+	go.opentelemetry.io/proto/otlp v1.8.0
+	golang.org/x/sync v0.17.0
+	google.golang.org/grpc v1.76.0
+)
+
+require (
+	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
+	github.com/go-logr/logr v1.4.3 // 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 v2.27.2 // 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 v1.38.0 // indirect
+	golang.org/x/net v0.44.0 // indirect
+	golang.org/x/sys v0.36.0 // indirect
+	golang.org/x/text v0.29.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250825161204-c5933d9347a5 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250825161204-c5933d9347a5 // indirect
+	google.golang.org/protobuf v1.36.9 // indirect
+)
+
+replace go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc => go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.14.0
+
+replace go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp => go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.14.0
+
+replace go.opentelemetry.io/otel/log => go.opentelemetry.io/otel/log v0.14.0
+
+replace go.opentelemetry.io/otel/sdk/log => go.opentelemetry.io/otel/sdk/log v0.14.0

go.sum

@@ -0,0 +1,89 @@
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main.go

@@ -0,0 +1,136 @@
+// An Intro module for Dagger
+package main
+
+import (
+	"context"
+	"dagger/intro/internal/dagger"
+	"encoding/json"
+	"errors"
+	"fmt"
+)
+
+type Intro struct{}
+
+// Install your first Toolchain
+// +check
+func (m *Intro) InstallIntro() error {
+	// You're running this, so toolchain installed!
+	return nil
+}
+
+// Login to Dagger Cloud with dagger login
+// +check
+func (m *Intro) LoginToCloud(ctx context.Context) error {
+	cloudUrl, err := dag.Cloud().TraceURL(ctx)
+	if err != nil || cloudUrl == "" {
+		return errors.New("Run 'dagger login' to login to Dagger Cloud")
+	}
+
+	return nil
+}
+
+// Install your next toolchain
+// +check
+func (m *Intro) InstallMoreToolchains(
+	ctx context.Context,
+	// +defaultPath="/"
+	source *dagger.Directory,
+) error {
+	message := ""
+	hasToolchain := false
+
+	// List of known toolchains.
+	knownToolchains := []struct {
+		indicator string
+		name      string
+		repo      string
+	}{
+		{
+			".prettierrc",
+			"prettier",
+			"github.com/dagger/prettier",
+		},
+		{
+			"playwright.config.js",
+			"playwright",
+			"github.com/dagger/playwright",
+		},
+		{
+			"jest.config.js",
+			"jest",
+			"github.com/dagger/jest",
+		},
+		{
+			".eslintrc.js",
+			"eslint",
+			"github.com/dagger/eslint",
+		},
+		{
+			"go.mod",
+			"go",
+			"github.com/dagger/dagger/toolchains/go",
+		},
+	}
+
+	// See if known toolchains need to be installed
+	for _, tc := range knownToolchains {
+		needsTc, hasTc, err := toolchainIndicator(ctx, tc.indicator, tc.name, source)
+		if err == nil && needsTc && !hasTc {
+			message += fmt.Sprintf("Install %s: dagger toolchain install %s\n", tc.name, tc.repo)
+		}
+		hasToolchain = hasToolchain || hasTc
+	}
+
+	if message == "" && hasToolchain {
+		// You have installed all of the toolchains we know to look for
+		return nil
+	}
+
+	if message == "" {
+		// You need toolchains but we didnt find any indicators that we know about
+		message += "Find some toolchains for your project.\nAsk in the Dagger discord for some relevant ones.\n"
+	}
+
+	return errors.New(message)
+}
+
+// See if a project needs a known toolchain based on project indicators
+func toolchainIndicator(
+	ctx context.Context,
+	indicator, toolchain string,
+	source *dagger.Directory,
+) (bool, bool, error) {
+	hasIndicator, err := source.Exists(ctx, indicator)
+	if err != nil {
+		return false, false, err
+	}
+	hasToolchain, err := modContains(ctx, source, toolchain)
+	return hasIndicator, hasToolchain, err
+}
+
+// Find an object name in the top level of a module
+func modContains(ctx context.Context, source *dagger.Directory, name string) (bool, error) {
+	mod := struct {
+		Toolchains []struct {
+			Name   string
+			Source string
+		}
+	}{}
+
+	daggerJson, err := source.File("dagger.json").Contents(ctx)
+	if err != nil {
+		return false, fmt.Errorf("failed to read dagger.json: %w", err)
+	}
+
+	err = json.Unmarshal([]byte(daggerJson), &mod)
+	if err != nil {
+		return false, fmt.Errorf("failed to unmarshal dagger.json: %w", err)
+	}
+
+	for _, tc := range mod.Toolchains {
+		if tc.Name == name {
+			return true, nil
+		}
+	}
+	return false, nil
+}