writeFileWithStatus() which shows 'Creating' for new, 'Updating' for changed and 'Unchanged' for files that won't change

tesseract/genconf/roots.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"bytes"
 	"crypto/x509"
 	"encoding/base64"
 	"encoding/json"
@@ -8,7 +9,6 @@ import (
 	"fmt"
 	"log"
 	"net/http"
-	"os"
 	"strings"
 )
 
@@ -67,15 +67,10 @@ func generateRoots(args []string) {
 		log.Fatalf("Failed to parse JSON response: %v", err)
 	}
 
-	// Create output file
-	outFile, err := os.Create(outputFile)
-	if err != nil {
-		log.Fatalf("Failed to create output file %s: %v", outputFile, err)
-	}
-	defer outFile.Close()
-
-	// Write each certificate as PEM
+	// Collect all valid certificates in a buffer
+	var pemBuffer bytes.Buffer
 	validCertCount := 0
+
 	for _, certBase64 := range rootsResp.Certificates {
 		// Decode base64 certificate
 		certBytes, err := base64.StdEncoding.DecodeString(certBase64)
@@ -102,14 +97,20 @@ func generateRoots(args []string) {
 			Bytes: certBytes,
 		}
 
-		// Write PEM to file
-		err = pem.Encode(outFile, pemBlock)
+		// Write PEM to buffer
+		err = pem.Encode(&pemBuffer, pemBlock)
 		if err != nil {
-			log.Fatalf("Failed to write PEM certificate: %v", err)
+			log.Fatalf("Failed to encode PEM certificate: %v", err)
 		}
 
 		validCertCount++
 	}
 
+	// Write all certificates to file with status
+	err = writeFileWithStatus(outputFile, pemBuffer.Bytes())
+	if err != nil {
+		log.Fatalf("Failed to write output file %s: %v", outputFile, err)
+	}
+
 	fmt.Printf("Successfully wrote %d certificates to %s (out of %d total)\n", validCertCount, outputFile, len(rootsResp.Certificates))
 }