cmd/stepd: List all loaded providers on startup

cmd/stepd/main.go

@@ -8,6 +8,7 @@ import "slices"
 import "errors"
 import "context"
 import "net/http"
+import "unicode/utf8"
 import "path/filepath"
 import "git.tebibyte.media/sashakoshka/step"
 import "git.tebibyte.media/sashakoshka/go-cli"
@@ -114,6 +115,9 @@ func main () {
 	err := environment.Init(context.Background())
 	if err != nil { log.Fatal(err) }
 
+	// TODO: load plugins
+	logProviders(environment.Providers)
+
 	// set up the HTTP handler
 	handler := stephttp.Handler {
 		Environment:       &environment,
@@ -172,3 +176,27 @@ func (this *httpServerRoutine) Run (ctx context.Context) error {
 	} 
 	return err
 }
+
+func logProviders (providers []step.Provider) {
+	output := "providers: "
+	x := utf8.RuneCountInString(output)
+	for index, provider := range providers {
+		packag := provider.Package()
+		if index != len(providers) - 1 {
+			packag += ", "
+			x += 2
+		}
+		packageLen := utf8.RuneCountInString(packag)
+		if x + packageLen >= 60 && output != "" {
+			log.Println("(i)", output)
+			output = ""
+			x = 2
+			continue
+		}
+		output += packag
+		x += packageLen
+	}
+	if output != "" {
+		log.Println("(i)", output)
+	}
+}