just overwrite bundles, don't delete then re-add

pipeline/05_bundle_gen/convert.go

@@ -72,10 +72,3 @@ func isSVG(data []byte) bool {
 	header := data[:min(256, len(data))]
 	return bytes.Contains(header, []byte("<svg")) || bytes.Contains(header, []byte("<?xml"))
 }
-
-func min(a, b int) int {
-	if a < b {
-		return a
-	}
-	return b
-}

pipeline/05_bundle_gen/main.go

@@ -107,15 +107,9 @@ func main() {
 		os.MkdirAll(cfg.OutputDir, 0755)
 	}
 
-	// Clean old bundles before writing new ones
-	if !cfg.DryRun {
-		fmt.Println("Cleaning old bundles from S3...")
-		if err := s3DeletePrefix(cfg.SiteBucket, "tabs/"); err != nil {
-			log.Fatalf("Failed to clean old bundles: %v", err)
-		}
-	}
-
 	// Stream hosts from DB in pages, convert icons, write bundles incrementally
+	// Bundles are written in-place (overwriting previous run). No delete-first step,
+	// so the live site always has valid data even if bundle gen crashes midway.
 	fmt.Println("Processing hosts and writing bundles...")
 
 	bundleCount := 0
@@ -240,10 +234,3 @@ func main() {
 
 	writeStats(stats)
 }
-
-func max(a, b int) int {
-	if a > b {
-		return a
-	}
-	return b
-}

pipeline/05_bundle_gen/s3.go

@@ -3,14 +3,12 @@ package main
 import (
 	"bytes"
 	"context"
-	"fmt"
 	"os"
 	"path/filepath"
 
 	"github.com/aws/aws-sdk-go-v2/aws"
 	"github.com/aws/aws-sdk-go-v2/config"
 	"github.com/aws/aws-sdk-go-v2/service/s3"
-	"github.com/aws/aws-sdk-go-v2/service/s3/types"
 )
 
 var s3Client *s3.Client
@@ -48,35 +46,3 @@ func s3UploadBundle(bucket, key string, data []byte) error {
 	return err
 }
 
-// s3DeletePrefix deletes all objects under a prefix in S3.
-func s3DeletePrefix(bucket, prefix string) error {
-	ctx := context.Background()
-	paginator := s3.NewListObjectsV2Paginator(s3Client, &s3.ListObjectsV2Input{
-		Bucket: aws.String(bucket),
-		Prefix: aws.String(prefix),
-	})
-
-	for paginator.HasMorePages() {
-		page, err := paginator.NextPage(ctx)
-		if err != nil {
-			return err
-		}
-		if len(page.Contents) == 0 {
-			continue
-		}
-
-		var objects []types.ObjectIdentifier
-		for _, obj := range page.Contents {
-			objects = append(objects, types.ObjectIdentifier{Key: obj.Key})
-		}
-
-		_, err = s3Client.DeleteObjects(ctx, &s3.DeleteObjectsInput{
-			Bucket: aws.String(bucket),
-			Delete: &types.Delete{Objects: objects},
-		})
-		if err != nil {
-			return fmt.Errorf("delete batch: %w", err)
-		}
-	}
-	return nil
-}