add cli test

cli_test.go

@@ -0,0 +1,20 @@
+// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
+
+package main
+
+import (
+	"github.com/stretchr/testify/assert"
+	"os"
+	"os/exec"
+	"testing"
+	"errors"
+)
+
+func TestCli(t *testing.T) {
+	if _, e := os.Stat("./decl"); errors.Is(e, os.ErrNotExist) {
+		t.Skip("cli not built")
+	}
+	yaml, cliErr := exec.Command("./decl", "-import-resource", "file://decl").Output()
+	assert.Nil(t, cliErr)
+	assert.Greater(t, len(yaml), 0)
+}

cmd/cli/main.go

@@ -5,14 +5,15 @@ import (
   "os"
   "flag"
   "log"
-  "log/slog"
-_ "fmt"
+	"log/slog"
+	"fmt"
 _ "gopkg.in/yaml.v3"
   "decl/internal/resource"
 )
 
 
 func main() {
+	fmt.Print("debugging\n")
   var programLevel = new(slog.LevelVar)
   logger := slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{Level: programLevel}))
   slog.SetDefault(logger)
@@ -22,6 +23,7 @@ func main() {
     programLevel.Set(slog.LevelError)
   }
 
+	fmt.Print("debugging: flags\n")
   file := flag.String("resource-file", "", "Resource file path")
   resourceUri := flag.String("import-resource", "", "Add an existing resource")
   
@@ -30,16 +32,17 @@ func main() {
   var resourceFile *os.File
   var inputFileErr error
 
-  if *file != "" {
-    resourceFile,inputFileErr = os.Open(*file)
-  } else {
+	slog.Info("args", "resource-file", *file, "import-resource", *resourceUri)
+  if *file == "-" {
     if stdinInfo, stdinErr := os.Stdin.Stat(); stdinErr == nil {
       if (stdinInfo.Mode() & os.ModeCharDevice) == 0 {
         resourceFile = os.Stdin
       }
     } else {
-      return
+      inputFileErr = stdinErr
     }
+	} else if *file != "" {
+    resourceFile,inputFileErr = os.Open(*file)
   }
 
   if inputFileErr != nil {
@@ -47,14 +50,17 @@ func main() {
   }
 
   d := resource.NewDocument()
-  if e := d.Load(resourceFile); e != nil {
-    log.Fatal(e)
-  }
-  if applyErr := d.Apply(); applyErr != nil {
-    log.Fatal(applyErr)
-  }
-  
+	slog.Info("loading resource document", "file", resourceFile)
+	if *file != "" {
+	  if e := d.Load(resourceFile); e != nil {
+			log.Fatal(e)
+		}
+		if applyErr := d.Apply(); applyErr != nil {
+			log.Fatal(applyErr)
+		}
+	}
   if *resourceUri != "" {
+		slog.Info("importing resource: %s\n", *resourceUri)
     d.AddResource(*resourceUri)
   }