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

tesseract/genconf/html.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"bytes"
 	"crypto/sha256"
 	"crypto/x509"
 	"encoding/base64"
@@ -136,27 +137,25 @@ func generateHTML(yamlFile string) {
 	for _, logEntry := range config.Logs {
 		indexPath := fmt.Sprintf("%s/index.html", logEntry.LocalDirectory)
 
-		file, err := os.Create(indexPath)
+		// Execute template to buffer
+		var buf bytes.Buffer
+		err := tmpl.Execute(&buf, config)
 		if err != nil {
-			log.Fatalf("Failed to create %s: %v", indexPath, err)
+			log.Fatalf("Failed to execute HTML template for %s: %v", indexPath, err)
 		}
 
-		err = tmpl.Execute(file, config)
+		// Write file with status
+		err = writeFileWithStatus(indexPath, buf.Bytes())
 		if err != nil {
-			file.Close()
 			log.Fatalf("Failed to write HTML to %s: %v", indexPath, err)
 		}
 
-		file.Close()
-		fmt.Printf("Generated %s\n", indexPath)
-
 		// Generate log.v3.json for this log
 		jsonPath := filepath.Join(logEntry.LocalDirectory, "log.v3.json")
-		err = generateLogJSON(logEntry, jsonPath)
+		err = generateLogJSONWithStatus(logEntry, jsonPath)
 		if err != nil {
 			log.Fatalf("Failed to generate %s: %v", jsonPath, err)
 		}
-		fmt.Printf("Generated %s\n", jsonPath)
 	}
 }
 
@@ -210,7 +209,7 @@ func computeKeyInfo(logEntry *Log) error {
 	return nil
 }
 
-func generateLogJSON(logEntry Log, outputPath string) error {
+func generateLogJSONWithStatus(logEntry Log, outputPath string) error {
 	logJSON := LogV3JSON{
 		Description:   fmt.Sprintf("%s.log.ct.ipng.ch", logEntry.ShortName),
 		SubmissionURL: fmt.Sprintf("%s/", logEntry.SubmissionPrefix),
@@ -229,10 +228,5 @@ func generateLogJSON(logEntry Log, outputPath string) error {
 		return fmt.Errorf("failed to marshal JSON: %v", err)
 	}
 
-	err = os.WriteFile(outputPath, jsonData, 0644)
-	if err != nil {
-		return fmt.Errorf("failed to write JSON file: %v", err)
-	}
-
-	return nil
+	return writeFileWithStatus(outputPath, jsonData)
 }