chore: add config & shorturl example

.github/workflows/go.yml

@@ -13,6 +13,11 @@ jobs:
       fail-fast: false
       matrix:
         version: ["1.21"]
+    services:
+      redis:
+        image: redis
+        ports:
+          - 6379:6379
     steps:
       - name: Check out repository
         uses: actions/checkout@v4

cmd/kod/internal/struct2interface.go

@@ -314,7 +314,7 @@ func makeFile(file string) (*makeInterfaceFile, error) {
 
 func Struct2Interface(cmd *cobra.Command, dir string) error {
 	var mapDirPath = make(map[string]*makeInterfaceFile)
-	lo.Must0(filepath.WalkDir(dir, func(path string, d fs.DirEntry, _ error) error {
+	err := filepath.WalkDir(dir, func(path string, d fs.DirEntry, _ error) error {
 		if d == nil || d.IsDir() {
 			return nil
 		}
@@ -331,10 +331,6 @@ func Struct2Interface(cmd *cobra.Command, dir string) error {
 			return fmt.Errorf("makeFile error: %s", err.Error())
 		}
 
-		if result == nil {
-			return nil
-		}
-
 		if obj, ok := mapDirPath[filepath.Dir(path)+result.PkgName]; ok {
 
 			obj.AllImports = append(obj.AllImports, result.AllImports...)
@@ -358,7 +354,10 @@ func Struct2Interface(cmd *cobra.Command, dir string) error {
 		}
 
 		return nil
-	}))
+	})
+	if err != nil {
+		return err
+	}
 
 	return createFile(cmd, mapDirPath)
 }

cmd/kod/internal/watcher.go

@@ -72,6 +72,10 @@ func Watch(watcher Watcher, dir string, callback func()) {
 					continue
 				}
 
+				if !strings.HasSuffix(filepath.Base(event.Name), ".go") {
+					continue
+				}
+
 				log.Println("modified file:", event.Name)
 				callback()
 			case err, ok := <-watcher.Errors():

cmd/kod/internal/watcher_test.go

@@ -19,7 +19,29 @@ func TestWatcherNormal(t *testing.T) {
 
 	events := make(chan fsnotify.Event, 2)
 	events <- fsnotify.Event{
-		Name: "test",
+		Name: "test.go",
+		Op:   fsnotify.Write,
+	}
+
+	w.EXPECT().Events().Return(events).AnyTimes()
+	w.EXPECT().Errors().Return(nil).AnyTimes()
+
+	time.AfterFunc(time.Second, func() {
+		close(events)
+	})
+
+	Watch(w, ".", func() {})
+}
+
+func TestWatcherNonGofile(t *testing.T) {
+	t.Parallel()
+
+	w := NewMockWatcher(gomock.NewController(t))
+	w.EXPECT().Add(".").Return(nil)
+
+	events := make(chan fsnotify.Event, 2)
+	events <- fsnotify.Event{
+		Name: "test.txt",
 		Op:   fsnotify.Write,
 	}
 

examples/config/README.md

@@ -0,0 +1,13 @@
+useconfig
+===
+
+This is an example of how to read configuration from a file.
+
+## Usage
+
+```bash
+KOD_CONFIG=kod.toml go run .
+```
+
+THis will read the configuration from `kod.toml` and print it to the console.
+Kod also supports other formats like `json` and `yaml`.

examples/config/kod.toml

@@ -0,0 +1,2 @@
+["github.com/go-kod/kod/Main"]
+name = "config"

examples/config/main.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"context"
+
+	"github.com/go-kod/kod"
+)
+
+type app struct {
+	kod.Implements[kod.Main]
+	kod.WithConfig[config]
+}
+
+type config struct {
+	Name string
+}
+
+func main() {
+	kod.Run(context.Background(), func(ctx context.Context, app *app) error {
+		app.L(ctx).Info("Hello, " + app.Config().Name)
+		return nil
+	})
+}

examples/config/main_test.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"context"
+	"testing"
+
+	"github.com/go-kod/kod"
+	"github.com/stretchr/testify/assert"
+)
+
+// TestApp tests the app component.
+func TestApp(t *testing.T) {
+	t.Parallel()
+
+	kod.RunTest(t, func(ctx context.Context, comp *app) {
+		assert.Equal(t, "config", comp.Config().Name)
+	}, kod.WithConfigFile("./kod.toml"))
+}

examples/go.mod

@@ -1,6 +1,6 @@
 module github.com/go-kod/kod/examples
 
-go 1.21.7
+go 1.21.0
 
 replace github.com/go-kod/kod => ../
 
@@ -14,6 +14,7 @@ require (
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/dominikbraun/graph v0.23.0 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/google/uuid v1.4.0 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect

examples/go.sum

@@ -14,6 +14,8 @@ github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/uuid v1.4.0 h1:MtMxsa51/r9yyhkyLsVeVt0B+BGQZzpQiTQ4eHZ8bc4=
+github.com/google/uuid v1.4.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=

examples/shorturl/kod.toml

@@ -0,0 +1,2 @@
+["github.com/go-kod/kod/examples/shorturl/Component"]
+redisconfig = { addr = "localhost:6379" }