fix: copy file with long long running ctx

- add check method
- add log

.gitignore

@@ -1,4 +1,5 @@
 .env
+.env.*
 .vscode
 coverage
 .notes

License

@@ -1,6 +1,6 @@
 ---- Definitions ----
 license means right to use
-author means who had initial idea, who research about jurisprudence and the who who started, in this case : Urko: Bein.
+author means who had initial idea, who research about jurisprudence and who started, in this case : Urko: Bein.
 contributors means every man who has helped to improve this software
 
 

Readme.md

@@ -69,9 +69,19 @@ The application uses the following environment variables:
 
 - **BB_ID:** Your Backblaze account ID
 - **BB_KEY:** Your Backblaze application key
+- **LOG_LEVEL:** Sets the log level (DEBUG, INFO, WARN, ERROR). Default is INFO.
 
 You can set these variables in your environment, or you can use a **.env** file in the root directory of the project. If the **BACKBLAZE_ENV** environment variable is set to dev, the application will load the **.env** file.
 
+## Configurable Logging
+
+The application supports configurable logging levels. Set the LOG_LEVEL environment variable to one of the following values:
+
+- **DEBUG:** Detailed debug information
+- **INFO:** Informational messages
+- **WARN:** Warnings
+- **ERROR:** Errors only
+
 ## Syncing with Backblaze
 The application uses the Sync method of the BackBlaze service to sync files or directories to Backblaze. If there's an error during the sync, the application will log the error and exit.
 
@@ -79,7 +89,6 @@ The application uses the Sync method of the BackBlaze service to sync files or d
 ./bin/backblaze-backup sync
 ```
 
-
 ## Checking for Duplicate Versions
 The application can also check for duplicate versions of files in your Backblaze buckets. To do this, run the following command:
 
@@ -95,3 +104,11 @@ The application can also clean up duplicate versions of files in your Backblaze
 ./bin/backblaze-backup cleanup
 ```
 If there are any errors during the cleanup, the application will log them and exit.
+
+## Check discrepancy between local backup and B2
+The application can also check that all local files has been backed up into B2 cloud. To do this, run the following command:
+
+```bash
+./bin/backblaze-backup check --dir "/var/tmp/test-upload" --bucket "b2-bucket"
+```
+If there are any errors during the check, the application will log them and exit.

cmd/check.go

@@ -0,0 +1,174 @@
+package cmd
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"log"
+	"math"
+	"net/smtp"
+	"os"
+	"strings"
+	"time"
+
+	"gitea.urkob.com/urko/backblaze-backup/internal/services/backblaze"
+	"gitea.urkob.com/urko/backblaze-backup/internal/services/email"
+	"gitea.urkob.com/urko/backblaze-backup/kit"
+	"gitea.urkob.com/urko/backblaze-backup/kit/config"
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+var Check = &cobra.Command{
+	Use:   "check",
+	Short: "Compares local backup files with those in a Backblaze B2 bucket and sends a summary email.",
+	Long: `This command compares the list of files in a local backup directory against the files in a specified Backblaze B2 bucket. 
+	The operation is performed concurrently and is time-bound, set by default to 5 minutes. 
+	If discrepancies are found, i.e., some files exist only locally or only on the cloud, these are logged and sent via email as attachments. 
+
+	The email contains two text attachments:
+	- 'Local-Files-Not-In-B2.txt': Lists files that are in the local backup directory but not in the B2 bucket.
+	- 'B2-Files-Not-In-Local.txt': Lists files that are in the B2 bucket but not in the local backup directory.
+
+	The command requires two flags:
+	- '--dir': The path of the local backup directory
+	- '--bucket': The name of the Backblaze B2 bucket
+
+	An environment variable 'BACKBLAZE_ENV' can be set to 'dev' to load environment variables from a .env file in the root directory.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		ctx, cancel := context.WithTimeout(context.Background(), time.Minute*5) // or any appropriate time
+		defer cancel()
+
+		log.SetFlags(log.Ldate | log.Lmicroseconds)
+		backupDir, err := cmd.Flags().GetString("dir")
+		if err != nil {
+			panic(fmt.Errorf("dir %w", err))
+		}
+		bucketName, err := cmd.Flags().GetString("bucket")
+		if err != nil {
+			panic(fmt.Errorf("bucket %w", err))
+		}
+
+		envFile := ""
+		if os.Getenv("BACKBLAZE_ENV") == "dev" {
+			envFile = kit.RootDir() + "/.env"
+		}
+
+		cfg := config.NewConfig(envFile)
+		mailSrv := email.NewMailService(email.MailServiceConfig{
+			Auth: smtp.PlainAuth("", cfg.MailUser, cfg.MailPassword, cfg.MailHost),
+			Host: cfg.MailHost,
+			Port: cfg.MailPort,
+			From: cfg.MailFrom,
+		},
+		)
+		logger := logrus.New()
+		logger.SetLevel(logrus.Level(cfg.LogLevel))
+
+		b, err := backblaze.NewBackBlaze(ctx, logger, cfg.BbId, cfg.BbKey)
+		if err != nil {
+			panic(fmt.Errorf("NewBackBlaze %w", err))
+		}
+
+		logger.Info("start check")
+		defer logger.Info("end check")
+
+		localChan := make(chan backblaze.B2Local)
+		b2Chan := make(chan backblaze.B2Local)
+		countChan := make(chan int, 1)
+		go b.CompareConcurrent(ctx, backupDir, bucketName, localChan, b2Chan, countChan)
+
+		reportBuilder := strings.Builder{}
+		reportBuilder.WriteString(fmt.Sprintf("Local files within `%s` path already in `%s` bucket:\n", backupDir, bucketName))
+
+		countLocal := 0
+		countB2 := 0
+
+		cloudBuilder := strings.Builder{}
+		cloudBuilder.WriteString(fmt.Sprintf("B2 files within `%s` bucket\n", bucketName))
+		cloudBuilder.WriteString("| B2 File Name                                             | Size             | ModTime                        | Status                                   |\n")
+		cloudBuilder.WriteString("|----------------------------------------------------------|------------------|--------------------------------|------------------------------------------\n")
+		countNotInLocal := 0
+
+		localBuilder := strings.Builder{}
+		localBuilder.WriteString(fmt.Sprintf("Local files in `%s`\n", backupDir))
+		localBuilder.WriteString("| Local File Name                                          | Size             | ModTime                        | Status                                   |\n")
+		localBuilder.WriteString("|----------------------------------------------------------|------------------|--------------------------------|------------------------------------------\n")
+		countNotInCloud := 0
+
+		countOK := 0
+	loop:
+		for {
+			select {
+			case <-ctx.Done():
+				// Handle the timeout or cancellation
+				if ctx.Err() == context.DeadlineExceeded {
+					logger.Error("Operation timed out")
+				} else if ctx.Err() == context.Canceled {
+					logger.Error("Operation canceled")
+				}
+				break loop
+			case countOK = <-countChan:
+				logger.Debugln("done chan")
+				break loop
+			case localMsg, ok := <-localChan:
+				if !ok {
+					continue
+				}
+				countLocal++
+				logger.Debugln("localChan", localMsg.File)
+				writeTableRow(&localBuilder, &countNotInCloud, localMsg.File, localMsg.Err)
+			case b2Msg, ok := <-b2Chan:
+				if !ok {
+					continue
+				}
+				countB2++
+				logger.Debugln("cloudBuilder", b2Msg.File)
+				writeTableRow(&cloudBuilder, &countNotInLocal, b2Msg.File, b2Msg.Err)
+			}
+		}
+
+		reportBuilder.WriteString("\n")
+		reportBuilder.WriteString(cloudBuilder.String())
+		reportBuilder.WriteString("\n")
+		reportBuilder.WriteString(localBuilder.String())
+
+		if err := mailSrv.SendOK(email.EmailWithAttachments{
+			To:        cfg.MailTo,
+			Bucket:    bucketName,
+			BackupDir: backupDir,
+			Count: map[string]int{
+				"count_ok":           countOK,
+				"count_local":        countLocal,
+				"count_b2":           countB2,
+				"count_not_in_local": countNotInLocal,
+				"count_not_in_cloud": countNotInCloud,
+			},
+			Attachments: []email.EmailAttachment{{File: bytes.NewReader([]byte(reportBuilder.String())), Title: fmt.Sprintf("%s-check-report.txt", bucketName)}},
+		}); err != nil {
+			panic(fmt.Errorf("error while send email: %w", err))
+		}
+	},
+}
+
+// New function to write a table row
+func writeTableRow(builder *strings.Builder, count *int, file backblaze.File, err error) {
+	status := "OK"
+	if err != nil {
+		status = err.Error()
+		(*count)++
+	}
+
+	builder.WriteString(fmt.Sprintf("| %-56s | %-16s | %-30s | %-40s |\n", file.Path, prettyByteSize(file.Size), file.ModTime.Format("2006-01-02 15:04:05.000"), status))
+}
+
+func prettyByteSize(b int) string {
+	bf := float64(b)
+	for _, unit := range []string{"", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"} {
+		if math.Abs(bf) < 1024.0 {
+			return fmt.Sprintf("%3.1f%sB", bf, unit)
+		}
+		bf /= 1024.0
+	}
+	return fmt.Sprintf("%.1fYiB", bf)
+}

cmd/check_test.go

@@ -0,0 +1,11 @@
+package cmd
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func Test_prettyByteSize(t *testing.T) {
+	require.Equal(t, prettyByteSize(1505099776), "1.4GiB")
+}

cmd/cleanup.go

@@ -2,11 +2,14 @@ package cmd
 
 import (
 	"context"
+	"fmt"
 	"log"
 	"os"
 
-	"gitea.urkob.com/urko/backblaze-backup/internal/services"
+	"gitea.urkob.com/urko/backblaze-backup/internal/services/backblaze"
+	"gitea.urkob.com/urko/backblaze-backup/kit"
 	"gitea.urkob.com/urko/backblaze-backup/kit/config"
+	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
@@ -14,19 +17,29 @@ var Cleanup = &cobra.Command{
 	Use:   "cleanup",
 	Short: "Handle clenaup for multiple versions of file in Backblaze",
 	Run: func(cmd *cobra.Command, args []string) {
-		log.SetFlags(log.Ldate)
+		log.SetFlags(log.Ldate | log.Lmicroseconds)
 		ctx, cancel := context.WithCancel(signalContext(cmd.Context()))
 		defer cancel()
 
+		bucketName, err := cmd.Flags().GetString("bucket")
+		if err != nil {
+			panic(fmt.Errorf("bucket %w", err))
+		}
+
 		envFile := ""
 		if os.Getenv("BACKBLAZE_ENV") == "dev" {
-			envFile = ".env"
+			envFile = kit.RootDir() + "/.env"
 		}
 		cfg := config.NewConfig(envFile)
+		logger := logrus.New()
+		logger.SetLevel(logrus.Level(cfg.LogLevel))
 
-		bbService := services.NewBackBlaze(cfg.BbId, cfg.BbKey)
-		if err := bbService.CleanUp(ctx, cancel); err != nil {
-			log.Fatalln("bbService.CleanUp()", err)
+		bbService, err := backblaze.NewBackBlaze(ctx, logger, cfg.BbId, cfg.BbKey)
+		if err != nil {
+			panic(fmt.Errorf("NewBackBlaze %w", err))
+		}
+		if err := bbService.CleanUp(ctx, cancel, bucketName); err != nil {
+			panic(fmt.Errorf("bbService.CleanUp %w", err))
 		}
 	},
 }

cmd/duplicate_versions.go

@@ -2,13 +2,16 @@ package cmd
 
 import (
 	"context"
+	"fmt"
 	"log"
 	"os"
 	"os/signal"
 	"syscall"
 
-	"gitea.urkob.com/urko/backblaze-backup/internal/services"
+	"gitea.urkob.com/urko/backblaze-backup/internal/services/backblaze"
+	"gitea.urkob.com/urko/backblaze-backup/kit"
 	"gitea.urkob.com/urko/backblaze-backup/kit/config"
+	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
@@ -16,19 +19,24 @@ var Versions = &cobra.Command{
 	Use:   "versions",
 	Short: "Handle versions of files in Backblaze",
 	Run: func(cmd *cobra.Command, args []string) {
-		log.SetFlags(log.Ldate)
+		log.SetFlags(log.Ldate | log.Lmicroseconds)
 		ctx, cancel := context.WithCancel(signalContext(cmd.Context()))
 		defer cancel()
 
 		envFile := ""
 		if os.Getenv("BACKBLAZE_ENV") == "dev" {
-			envFile = ".env"
+			envFile = kit.RootDir() + "/.env"
 		}
 		cfg := config.NewConfig(envFile)
+		logger := logrus.New()
+		logger.SetLevel(logrus.Level(cfg.LogLevel))
 
-		bbService := services.NewBackBlaze(cfg.BbId, cfg.BbKey)
+		bbService, err := backblaze.NewBackBlaze(ctx, logger, cfg.BbId, cfg.BbKey)
+		if err != nil {
+			panic(fmt.Errorf("NewBackBlaze %w", err))
+		}
 		if err := bbService.ListDuplicateVersions(ctx, cancel); err != nil {
-			log.Fatalln("bbService.ListDuplicateVersions()", err)
+			panic(fmt.Errorf("bbService.ListDuplicateVersions %w", err))
 		}
 	},
 }

cmd/sync.go

@@ -2,11 +2,14 @@ package cmd
 
 import (
 	"context"
+	"fmt"
 	"log"
 	"os"
 
-	"gitea.urkob.com/urko/backblaze-backup/internal/services"
+	"gitea.urkob.com/urko/backblaze-backup/internal/services/backblaze"
+	"gitea.urkob.com/urko/backblaze-backup/kit"
 	"gitea.urkob.com/urko/backblaze-backup/kit/config"
+	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
@@ -15,32 +18,58 @@ var Sync = &cobra.Command{
 	Short: "Sync files or directories to Backblaze",
 	Long:  `A tool to backup files and directories to Backblaze.`,
 	Run: func(cmd *cobra.Command, args []string) {
+
 		ctx, cancel := context.WithCancel(signalContext(cmd.Context()))
 		defer cancel()
 
-		log.SetFlags(log.Ldate)
+		log.SetFlags(log.Ldate | log.Lmicroseconds)
 		filePath, err := cmd.Flags().GetString("file")
 		if err != nil {
-			log.Fatalln("file %w", err)
+			panic(fmt.Errorf("file %w", err))
 		}
 		dir, err := cmd.Flags().GetString("dir")
 		if err != nil {
-			log.Fatalln("dir %w", err)
+			panic(fmt.Errorf("dir %w", err))
 		}
 		bucketName, err := cmd.Flags().GetString("bucket")
 		if err != nil {
-			log.Fatalln("bucket %w", err)
+			panic(fmt.Errorf("bucket %w", err))
+		}
+
+		workers, err := cmd.Flags().GetInt("workers")
+		if err != nil {
+			panic(fmt.Errorf("workers %w", err))
+		}
+
+		concurrentUploads, err := cmd.Flags().GetInt("concurrent-uploads")
+		if err != nil {
+			panic(fmt.Errorf("workers %w", err))
 		}
 
 		envFile := ""
 		if os.Getenv("BACKBLAZE_ENV") == "dev" {
-			envFile = ".env"
+			envFile = kit.RootDir() + "/.env"
 		}
-		cfg := config.NewConfig(envFile)
 
-		bbService := services.NewBackBlaze(cfg.BbId, cfg.BbKey).WithBucket(bucketName).WithDir(dir).WithFile(filePath)
+		cfg := config.NewConfig(envFile)
+		logger := logrus.New()
+		logger.SetLevel(logrus.Level(cfg.LogLevel))
+
+		bbService, err := backblaze.NewBackBlaze(ctx, logger, cfg.BbId, cfg.BbKey)
+		if err != nil {
+			panic(fmt.Errorf("NewBackBlaze %w", err))
+		}
+
+		bbService = bbService.WithOptions(backblaze.BackBlazeOptions{
+			Bucket:            bucketName,
+			Dir:               dir,
+			FilePath:          filePath,
+			MaxWorkers:        workers,
+			ConcurrentUploads: concurrentUploads,
+		})
+
 		if err := bbService.Sync(ctx); err != nil {
-			log.Fatalln("bbService.Sync()", err)
+			panic(fmt.Errorf("bbService.Sync %w", err))
 		}
 	},
 }

go.mod

@@ -1,6 +1,6 @@
 module gitea.urkob.com/urko/backblaze-backup
 
-go 1.20
+go 1.21
 
 require (
 	gitea.urkob.com/urko/go-root-dir v0.0.0-20230311113851-2f6d4355888a
@@ -8,19 +8,24 @@ require (
 	github.com/kelseyhightower/envconfig v1.4.0
 	github.com/kurin/blazer v0.5.3
 	github.com/rclone/rclone v1.63.1
+	github.com/sirupsen/logrus v1.9.0
 	github.com/spf13/cobra v1.7.0
+	github.com/stretchr/testify v1.8.3
 	golang.org/x/sync v0.3.0
 )
 
 require (
+	cloud.google.com/go/compute/metadata v0.2.3 // indirect
 	github.com/Max-Sum/base32768 v0.0.0-20230304063302-18e6ce5945fd // indirect
 	github.com/abbot/go-http-auth v0.4.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/coreos/go-semver v0.3.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/go-chi/chi/v5 v5.0.8 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/googleapis/gax-go/v2 v2.11.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jzelinskie/whirlpool v0.0.0-20201016144138-0675e54bb004 // indirect
 	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
@@ -28,6 +33,7 @@ require (
 	github.com/mattn/go-isatty v0.0.16 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
 	github.com/prometheus/client_golang v1.14.0 // indirect
 	github.com/prometheus/client_model v0.3.0 // indirect
@@ -36,16 +42,18 @@ require (
 	github.com/rfjakob/eme v1.1.2 // indirect
 	github.com/shirou/gopsutil/v3 v3.23.5 // indirect
 	github.com/shoenig/go-m1cpu v0.1.6 // indirect
-	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/tklauser/go-sysconf v0.3.11 // indirect
 	github.com/tklauser/numcpus v0.6.0 // indirect
 	github.com/yusufpapurcu/wmi v1.2.3 // indirect
-	golang.org/x/crypto v0.7.0 // indirect
-	golang.org/x/net v0.8.0 // indirect
+	golang.org/x/crypto v0.9.0 // indirect
+	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/oauth2 v0.8.0 // indirect
 	golang.org/x/sys v0.8.0 // indirect
-	golang.org/x/term v0.7.0 // indirect
-	golang.org/x/text v0.8.0 // indirect
+	golang.org/x/term v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
+	google.golang.org/api v0.126.0 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -12,6 +12,7 @@ cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bP
 cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
 cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
 cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
+cloud.google.com/go v0.65.0 h1:Dg9iHVQfrhq82rUNu9ZxUDrJLaxFUe/HlCVaLyRruq8=
 cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
@@ -19,8 +20,10 @@ cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvf
 cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
 cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
 cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
-cloud.google.com/go/compute v1.19.0 h1:+9zda3WGgW1ZSTlVppLCYFIr48Pa35q1uG2N1itbCEQ=
+cloud.google.com/go/compute v1.19.3 h1:DcTwsFgGev/wV5+q8o2fzgcHOaac+DKGC91ZlvpsQds=
+cloud.google.com/go/compute v1.19.3/go.mod h1:qxvISKp/gYnXkSAD1ppcSOveRAmzxicEv/JlizULFrI=
 cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
+cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
@@ -36,17 +39,25 @@ dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7
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@@ -55,12 +66,15 @@ github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRF
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@@ -72,6 +86,7 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
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@@ -79,12 +94,15 @@ github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
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@@ -102,14 +120,18 @@ github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
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@@ -150,6 +172,7 @@ github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@@ -161,28 +184,45 @@ github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hf
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@@ -232,16 +281,24 @@ github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjY
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@@ -273,7 +330,9 @@ github.com/prometheus/procfs v0.7.3/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1
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@@ -292,8 +351,11 @@ github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrf
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@@ -311,36 +373,45 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
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 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
-golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
+golang.org/x/crypto v0.9.0 h1:LF6fAI+IutBocDJ2OT0Q1g8plpYljMZ4+lty+dsqw3g=
+golang.org/x/crypto v0.9.0/go.mod h1:yrmDGqONDYtNj3tH8X9dzUun2m2lzPa9ngI6/RUPGR0=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -402,8 +473,8 @@ golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81R
 golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
-golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
-golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
+golang.org/x/net v0.10.0 h1:X2//UzNDwYmtCLn7To6G58Wr6f5ahEAQgKNzv9Y951M=
+golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -411,7 +482,8 @@ golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4Iltr
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
-golang.org/x/oauth2 v0.6.0 h1:Lh8GPgSKBfWSwFvtuWOfeI3aAAnbXTSutYxJiOJFgIw=
+golang.org/x/oauth2 v0.8.0 h1:6dkIjl3j3LtZ/O3sTgZTMsLKSftL/B8Zgq4huOIIUu8=
+golang.org/x/oauth2 v0.8.0/go.mod h1:yr7u4HXZRm1R1kBWqr/xKNqewf0plRYoB7sla+BCIXE=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -470,8 +542,8 @@ golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
 golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.7.0 h1:BEvjmm5fURWqcfbSKTdpkDXYBrUS1c0m8agp14W48vQ=
-golang.org/x/term v0.7.0/go.mod h1:P32HKFT3hSsZrRxla30E9HqToFYAQPCMs/zFMBUFqPY=
+golang.org/x/term v0.8.0 h1:n5xxQn2i3PC0yLAbjTpNT85q/Kgzcr2gIoX9OrJUols=
+golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -479,8 +551,8 @@ golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
-golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
+golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -546,7 +618,8 @@ google.golang.org/api v0.24.0/go.mod h1:lIXQywCXRcnZPGlsd8NbLnOjtAoL6em04bJ9+z0M
 google.golang.org/api v0.28.0/go.mod h1:lIXQywCXRcnZPGlsd8NbLnOjtAoL6em04bJ9+z0MncE=
 google.golang.org/api v0.29.0/go.mod h1:Lcubydp8VUV7KeIHD9z2Bys/sm/vGKnG1UHuDBSrHWM=
 google.golang.org/api v0.30.0/go.mod h1:QGmEvQ87FHZNiUVJkT14jQNYJ4ZJjdRF23ZXz5138Fc=
-google.golang.org/api v0.115.0 h1:6FFkVvStt4YqXSx3azKyzj7fXerGnVlLJ/eud01nBDE=
+google.golang.org/api v0.126.0 h1:q4GJq+cAdMAC7XP7njvQ4tvohGLiSlytuL4BQxbIZ+o=
+google.golang.org/api v0.126.0/go.mod h1:mBwVAtz+87bEN6CbA1GtZPDOqY2R5ONPqJeIlvyo4Aw=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -554,6 +627,7 @@ google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww
 google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/appengine v1.6.6/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
+google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
@@ -583,7 +657,9 @@ google.golang.org/genproto v0.0.0-20200618031413-b414f8b61790/go.mod h1:jDfRM7Fc
 google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20230331144136-dcfb400f0633 h1:0BOZf6qNozI3pkN3fJLwNubheHJYHhMh91GRFOWWK08=
+google.golang.org/genproto v0.0.0-20230530153820-e85fd2cbaebc h1:8DyZCyvI8mE1IdLy/60bS+52xfymkE72wv1asokgtao=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20230530153820-e85fd2cbaebc h1:XSJ8Vk1SWuNr8S18z1NZSziL0CPIXLCCMDOEFtHBOFc=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20230530153820-e85fd2cbaebc/go.mod h1:66JfowdXAEgad5O9NnYcsNPLCPZJD++2L9X0PCMODrA=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
@@ -596,7 +672,8 @@ google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKa
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.54.0 h1:EhTqbhiYeixwWQtAEZAxmV9MGqcjEU2mFx52xCzNyag=
+google.golang.org/grpc v1.55.0 h1:3Oj82/tFSCeUrRTg/5E/7d/W5A1tj6Ky1ABAuZuv5ag=
+google.golang.org/grpc v1.55.0/go.mod h1:iYEXKGkEBhg1PjZQvoYEVPTDkHo1/bjTnfwTeGONTY8=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -615,6 +692,8 @@ gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLks
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
@@ -637,5 +716,8 @@ rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
 storj.io/common v0.0.0-20221123115229-fed3e6651b63 h1:OuleF/3FvZe3Nnu6NdwVr+FvCXjfD4iNNdgfI2kcs3k=
+storj.io/common v0.0.0-20221123115229-fed3e6651b63/go.mod h1:+gF7jbVvpjVIVHhK+EJFhfPbudX395lnPq/dKkj/Qys=
 storj.io/drpc v0.0.32 h1:5p5ZwsK/VOgapaCu+oxaPVwO6UwIs+iwdMiD50+R4PI=
+storj.io/drpc v0.0.32/go.mod h1:6rcOyR/QQkSTX/9L5ZGtlZaE2PtXTTZl8d+ulSeeYEg=
 storj.io/uplink v1.10.0 h1:3hS0hszupHSxEoC4DsMpljaRy0uNoijEPVF6siIE28Q=
+storj.io/uplink v1.10.0/go.mod h1:gJIQumB8T3tBHPRive51AVpbc+v2xe+P/goFNMSRLG4=

internal/services/backblaze.go

@@ -1,437 +0,0 @@
-package services
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"io"
-	"io/fs"
-	"log"
-	"os"
-	"path/filepath"
-	"runtime"
-	"strconv"
-	"strings"
-	"sync"
-
-	rcloneb2 "github.com/rclone/rclone/backend/b2"
-
-	"github.com/kurin/blazer/b2"
-	"github.com/rclone/rclone/fs/config/configmap"
-	"github.com/rclone/rclone/fs/operations"
-	"golang.org/x/sync/semaphore"
-)
-
-const writers = 10
-const maxConcurrentWeight = 4
-const largeFileSize = 500 * 1024 * 1024 // 500 MB
-
-type BackBalze struct {
-	bucketName string
-	dir        string
-	filePath   string
-	maxWorkers int
-	bbID       string
-	bbKey      string
-}
-
-func NewBackBlaze(bbID, bbKey string) *BackBalze {
-	log.Println("runtime.NumCPU()", runtime.NumCPU())
-	return &BackBalze{
-		bbID:       bbID,
-		bbKey:      bbKey,
-		maxWorkers: runtime.NumCPU(),
-	}
-}
-func (b *BackBalze) WithBucket(bucketName string) *BackBalze {
-	b.bucketName = bucketName
-	return b
-}
-func (b *BackBalze) WithDir(dir string) *BackBalze {
-	b.dir = dir
-	return b
-}
-func (b *BackBalze) WithFile(filePath string) *BackBalze {
-	b.filePath = filePath
-	return b
-}
-func (b *BackBalze) Sync(ctx context.Context) error {
-	if b.bucketName == "" && (b.filePath == "" || b.dir == "") {
-		return fmt.Errorf("bucket name is %v | filePath is %v | dir is %v", b.bucketName, b.filePath, b.dir)
-	}
-
-	if b.filePath != "" && b.dir != "" {
-		return errors.New("you must select just 1 option, dir or file")
-	}
-
-	b2Client, err := b2.NewClient(ctx, b.bbID, b.bbKey)
-	if err != nil {
-		return fmt.Errorf("b2.NewClient %w", err)
-	}
-	log.Println("b2Client ok")
-	bc, err := b2Client.Bucket(ctx, b.bucketName)
-	if err != nil {
-		return fmt.Errorf("b2Client.Bucket %w", err)
-	}
-
-	if bc == nil {
-		return fmt.Errorf("bucket doesn't exist %s", b.bucketName)
-	}
-
-	log.Println("bucket found:", bc.Name())
-	if b.filePath != "" {
-		log.Println("file:", b.filePath)
-
-		if err := copyFile(ctx, bc, b.filePath); err != nil {
-			return fmt.Errorf("copyFile %w", err)
-		}
-		return nil
-	}
-
-	if b.dir != "" {
-		oldFiles, err := bucketFiles(ctx, bc)
-		if err != nil {
-			return fmt.Errorf("bucketFiles %w", err)
-		}
-		log.Println(strings.Repeat("*", 40))
-		log.Println("oldFiles to clean:\n\t\t" + strings.Join(oldFiles, "\n\t\t"))
-		log.Println(strings.Repeat("*", 40))
-
-		fileChan := make(chan string)
-
-		var wg sync.WaitGroup
-
-		for i := 0; i < b.maxWorkers; i++ {
-			wg.Add(1)
-			go func() {
-				defer wg.Done()
-				for src := range fileChan {
-					log.Println("start copying file", src)
-					if err := copyFile(ctx, bc, src); err != nil {
-						log.Printf("error copying file %s: %v\n", src, err)
-					}
-				}
-			}()
-		}
-
-		// Walk the directory and send files to the channel for uploading
-		err = filepath.WalkDir(b.dir, func(path string, d fs.DirEntry, err error) error {
-			if err != nil {
-				return err
-			}
-			if !d.IsDir() {
-				fileChan <- path
-			}
-			return nil
-		})
-		if err != nil {
-			return fmt.Errorf("error walking the directory: %v", err)
-		}
-
-		// Close the channel (no more files to send)
-		close(fileChan)
-		wg.Wait()
-
-		// Cleanup old files after backup is completed
-		if err := cleanBucket(ctx, bc, oldFiles); err != nil {
-			return fmt.Errorf("cleanBucket %w", err)
-		}
-	}
-
-	log.Println("copied successfully")
-	return nil
-}
-
-func (b *BackBalze) OldSync() error {
-	if b.bucketName == "" && (b.filePath == "" || b.dir == "") {
-		return fmt.Errorf("bucket name is %v | filePath is %v | dir is %v", b.bucketName, b.filePath, b.dir)
-	}
-
-	if b.filePath != "" && b.dir != "" {
-		return errors.New("you must select just 1 option, dir or file")
-	}
-
-	ctx := context.Background()
-	b2Client, err := b2.NewClient(ctx, b.bbID, b.bbKey)
-	if err != nil {
-		return fmt.Errorf("b2.NewClient %w", err)
-	}
-	log.Println("b2Client ok")
-	bc, err := b2Client.Bucket(ctx, b.bucketName)
-	if err != nil {
-		return fmt.Errorf("b2Client.Bucket %w", err)
-	}
-
-	if bc == nil {
-		return fmt.Errorf("bucket doesn't exist %s", b.bucketName)
-	}
-
-	log.Println("bucket found:", bc.Name())
-	if b.filePath != "" {
-		log.Println("file:", b.filePath)
-
-		if err := copyFile(ctx, bc, b.filePath); err != nil {
-			return fmt.Errorf("copyFile %w", err)
-		}
-		return nil
-	}
-
-	if b.dir != "" {
-		oldFiles, err := bucketFiles(ctx, bc)
-		if err != nil {
-			return fmt.Errorf("bucketFiles %w", err)
-		}
-		log.Println(strings.Repeat("*", 40))
-		log.Println("oldFiles to clean:\n\t\t" + strings.Join(oldFiles, "\n\t\t"))
-		log.Println(strings.Repeat("*", 40))
-
-		fileChan := make(chan string)
-		uploadSem := semaphore.NewWeighted(maxConcurrentWeight)
-
-		var wg sync.WaitGroup
-
-		for i := 0; i < b.maxWorkers; i++ {
-			wg.Add(1)
-			go func() {
-				defer wg.Done()
-				for src := range fileChan {
-					info, err := os.Stat(src)
-					if err != nil {
-						log.Printf("error getting file info %s: %v\n", src, err)
-						continue
-					}
-					weight := int64(1)
-					if info.Size() > largeFileSize {
-						weight = 2
-					}
-					if err := uploadSem.Acquire(ctx, weight); err == nil {
-						log.Println("start copying file", src)
-						if err := copyFile(ctx, bc, src); err != nil {
-							log.Printf("error copying file %s: %v\n", src, err)
-						}
-						uploadSem.Release(weight)
-					} else {
-						log.Printf("error acquiring semaphore: %v\n", err)
-					}
-				}
-			}()
-		}
-
-		// Walk the directory and send files to the channel for uploading
-		err = filepath.WalkDir(b.dir, func(path string, d fs.DirEntry, err error) error {
-			if err != nil {
-				return err
-			}
-			if !d.IsDir() {
-				fileChan <- path
-			}
-			return nil
-		})
-		if err != nil {
-			return fmt.Errorf("error walking the directory: %v", err)
-		}
-
-		// Close the channel (no more files to send)
-		close(fileChan)
-		wg.Wait()
-
-		// Cleanup old files after backup is completed
-		if err := cleanBucket(ctx, bc, oldFiles); err != nil {
-			return fmt.Errorf("cleanBucket %w", err)
-		}
-	}
-
-	log.Println("copied successfully")
-	return nil
-}
-
-func copyFile(ctx context.Context, bucket *b2.Bucket, src string) error {
-	f, err := os.Open(src)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-	fi, err := f.Stat()
-	if err != nil {
-		return err
-	}
-	w := bucket.Object(fi.Name()).NewWriter(ctx)
-	w.ConcurrentUploads = writers
-	if _, err := io.Copy(w, f); err != nil {
-		w.Close()
-		return err
-	}
-	return w.Close()
-}
-
-func cleanBucket(ctx context.Context, bucket *b2.Bucket, files []string) error {
-	var errorBuilder strings.Builder
-	for _, v := range files {
-		obj := bucket.Object(v)
-		if obj == nil {
-			log.Println("object is nil", v)
-			continue
-		}
-		if err := obj.Delete(ctx); err != nil {
-			errorBuilder.WriteString(fmt.Errorf("error deleting %s : %w", v, err).Error())
-			errorBuilder.WriteString("; ")
-		}
-	}
-
-	if errorBuilder.Len() > 0 {
-		return errors.New(errorBuilder.String())
-	}
-
-	return nil
-}
-
-func bucketFiles(ctx context.Context, bucket *b2.Bucket) ([]string, error) {
-	bucketIter := bucket.List(ctx)
-	if bucketIter == nil {
-		return nil, fmt.Errorf("bucket list cannot be nil")
-	}
-	var files []string
-	for {
-		if !bucketIter.Next() {
-			if bucketIter.Err() != nil {
-				return nil, fmt.Errorf("bucketIter err %w", bucketIter.Err())
-			}
-			break
-		}
-		if bucketIter.Object() == nil {
-			log.Println("bucketIter Object is nil")
-			continue
-		}
-		files = append(files, bucketIter.Object().Name())
-	}
-	return files, nil
-}
-
-type duplicate struct {
-	bucket string
-	file   string
-	count  int
-}
-
-func (d duplicate) dir() string {
-	if !strings.Contains(d.file, "/") {
-		return d.bucket
-	}
-	splitted := strings.Split(d.file, "/")
-	return strings.Join(splitted[:(len(splitted)-1)], "/")
-}
-
-func (b *BackBalze) CleanUp(ctx context.Context, cancel context.CancelFunc) error {
-	b2Client, err := b2.NewClient(ctx, b.bbID, b.bbKey)
-	if err != nil {
-		return fmt.Errorf("b2.NewClient %w", err)
-	}
-	log.Println("b2Client ok")
-
-	dups, err := b.listDuplicates(ctx, cancel, b2Client)
-	if err != nil {
-		return fmt.Errorf("b.listDuplicates: %w", err)
-	}
-
-	if len(dups) <= 0 {
-		return nil
-	}
-
-	for _, d := range dups {
-		smpl := configmap.Simple{}
-		smpl.Set("account", b.bbID)
-		smpl.Set("key", b.bbKey)
-		smpl.Set("chunk_size", strconv.FormatInt(int64(9600), 10))
-		f, err := rcloneb2.NewFs(ctx, "B2", d.dir(), smpl)
-		if err != nil {
-			return fmt.Errorf("rclonefs.NewFs %w", err)
-		}
-		if err := operations.CleanUp(ctx, f); err != nil {
-			return fmt.Errorf("operations.CleanUp %w", err)
-		}
-	}
-
-	return nil
-}
-
-func (b *BackBalze) ListDuplicateVersions(ctx context.Context, cancel context.CancelFunc) error {
-	b2Client, err := b2.NewClient(ctx, b.bbID, b.bbKey)
-	if err != nil {
-		return fmt.Errorf("b2.NewClient %w", err)
-	}
-	log.Println("b2Client ok")
-
-	dups, err := b.listDuplicates(ctx, cancel, b2Client)
-	if err != nil {
-		return fmt.Errorf("b.listDuplicates: %w", err)
-	}
-
-	if len(dups) > 0 {
-		var builder strings.Builder
-		for _, dup := range dups {
-			builder.WriteString(fmt.Sprintf("%+v\n", dup))
-		}
-		return fmt.Errorf("found duplicates: %s", builder.String())
-	}
-	return nil
-}
-
-func (b *BackBalze) listDuplicates(ctx context.Context, cancel context.CancelFunc, b2Client *b2.Client) ([]duplicate, error) {
-	buckets, err := b2Client.ListBuckets(ctx)
-	if err != nil {
-		return nil, fmt.Errorf("b2Client.Bucket %w", err)
-	}
-
-	wg := sync.WaitGroup{}
-	dups := make([]duplicate, 0)
-
-	log.Println("len(buckets)", len(buckets))
-	sm := semaphore.NewWeighted(int64(b.maxWorkers))
-	wg.Add(len(buckets))
-	for _, bc := range buckets {
-		if err := sm.Acquire(ctx, 1); err != nil {
-			return nil, fmt.Errorf("sm.Acquire %w", err)
-		}
-
-		go func(bc *b2.Bucket) {
-			defer sm.Release(1)
-			defer wg.Done()
-			files := make(map[string]int, 0)
-
-			bucketIter := bc.List(ctx, b2.ListHidden())
-			if bucketIter == nil {
-				log.Println("bucket list cannot be nil")
-				return
-			}
-
-			for {
-				if !bucketIter.Next() {
-					if bucketIter.Err() != nil {
-						log.Println("bucketIter err %w", bucketIter.Err())
-						return
-					}
-					break
-				}
-				if bucketIter.Object() == nil {
-					log.Println("bucketIter Object is nil")
-					continue
-				}
-				files[bucketIter.Object().Name()]++
-			}
-
-			// Search duplicates
-			for file, count := range files {
-				if count > 1 {
-					dups = append(dups, duplicate{
-						bucket: bc.Name(),
-						file:   file,
-						count:  count,
-					})
-				}
-			}
-		}(bc)
-	}
-	wg.Wait()
-
-	return dups, nil
-}

internal/services/backblaze/backblaze.go

@@ -0,0 +1,45 @@
+package backblaze
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/kurin/blazer/b2"
+	"github.com/sirupsen/logrus"
+)
+
+type BackBlaze struct {
+	logger   *logrus.Logger
+	b2Client *b2.Client
+	bbID     string
+	bbKey    string
+	options  BackBlazeOptions
+}
+
+// NewBackBlaze initializes a new BackBlaze struct with given BackBlaze ID and Key.
+func NewBackBlaze(ctx context.Context, logger *logrus.Logger, bbID, bbKey string) (*BackBlaze, error) {
+	b2Client, err := b2.NewClient(ctx, bbID, bbKey)
+	if err != nil {
+		return nil, fmt.Errorf("b2.NewClient %w", err)
+	}
+
+	return &BackBlaze{
+		logger:   logger,
+		b2Client: b2Client,
+		bbID:     bbID,
+		bbKey:    bbKey,
+	}, nil
+}
+
+type BackBlazeOptions struct {
+	Bucket            string
+	Dir               string
+	FilePath          string
+	MaxWorkers        int
+	ConcurrentUploads int
+}
+
+func (b *BackBlaze) WithOptions(options BackBlazeOptions) *BackBlaze {
+	b.options = options
+	return b
+}

internal/services/backblaze/check.go

@@ -0,0 +1,184 @@
+package backblaze
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io/fs"
+	"path"
+	"path/filepath"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/kurin/blazer/b2"
+)
+
+type File struct {
+	Path       string
+	Size       int // file size in bytes
+	ModTime    time.Time
+	IsUploaded *bool
+}
+
+// localFiles lists the local files in the given backup directory and sends them to a channel.
+// It closes the channel after all files are listed.
+func (b *BackBlaze) localFiles(backupDir string, fileChan chan<- File) error {
+	defer close(fileChan)
+	// Walk the directory and send files to the channel
+	err := filepath.WalkDir(backupDir, func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+		if !d.IsDir() {
+			i, err := d.Info()
+			if err != nil {
+				return fmt.Errorf("d.Info: %w", err)
+			}
+			fileChan <- File{Path: filepath.Base(path), Size: int(i.Size()), ModTime: i.ModTime()}
+		}
+		return nil
+	})
+	if err != nil {
+		return fmt.Errorf("error walking the directory: %w", err)
+	}
+
+	return nil
+}
+
+// b2BucketFiles lists the files in the given B2 bucket and sends them to a channel.
+// It closes the channel after all files are listed.
+func (b *BackBlaze) b2BucketFiles(ctx context.Context, bucketName string, fileChan chan<- File) error {
+	bucket, err := b.b2Client.Bucket(ctx, bucketName)
+	defer close(fileChan)
+	if err != nil {
+		return fmt.Errorf("b2Client.Bucket %w", err)
+	}
+
+	bucketIter := bucket.List(ctx, b2.ListHidden())
+	if bucketIter == nil {
+		return errors.New("bucket list cannot be nil")
+	}
+
+	for {
+		if !bucketIter.Next() {
+			if bucketIter.Err() != nil {
+				return fmt.Errorf("bucketIter err %w", bucketIter.Err())
+			}
+			break
+		}
+		if bucketIter.Object() == nil {
+			return errors.New("bucketIter Object is nil")
+		}
+
+		fileName := path.Base(bucketIter.Object().Name())
+		attrs, err := bucketIter.Object().Attrs(ctx)
+		if err != nil {
+			return fmt.Errorf("bucketIter.Object().Attrs %s err %w", fileName, bucketIter.Err())
+		}
+		isUploaded := attrs.Status != b2.Uploaded
+		fileChan <- File{Path: path.Base(fileName), Size: int(attrs.Size), IsUploaded: &isUploaded, ModTime: attrs.UploadTimestamp}
+	}
+
+	return nil
+}
+
+var ErrLocalNotInCloud error = errors.New("exists locally but not in the cloud")
+var ErrCloudNotInLocal error = errors.New("exists on B2 but not locally")
+
+type B2Local struct {
+	File File
+	Err  error
+}
+
+// CompareConcurrent concurrently fetches the list of local files and cloud files,
+// then compares them to ensure all local files exist in the cloud.
+// Errors are sent to a provided error channel. The function will panic if an error occurs while listing files.
+func (b *BackBlaze) CompareConcurrent(
+	ctx context.Context,
+	backupDir, bucketName string,
+	localChan, b2Chan chan<- B2Local,
+	doneChan chan<- int,
+) {
+	var wg sync.WaitGroup
+	localFiles := make(map[string]File)
+	cloudFiles := make(map[string]File)
+	localFileChan := make(chan File)
+	b2FileChan := make(chan File)
+
+	// Local listing
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for f := range localFileChan {
+				if _, ok := localFiles[f.Path]; ok {
+					panic(fmt.Errorf("local file already exists in map: %s", f.Path))
+				}
+				b.logger.Debugf("local file %+v\n", f)
+				localFiles[f.Path] = f
+			}
+		}()
+
+		if err := b.localFiles(backupDir, localFileChan); err != nil {
+			panic(fmt.Errorf("b.LocalFilesWithB2: %w", err))
+		}
+	}()
+
+	// Cloud listing
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for f := range b2FileChan {
+				if _, ok := cloudFiles[f.Path]; ok {
+					panic(fmt.Errorf(`cloud file already exists in map: %s\n you should run 'backblazebackup cleanup --bucket "%s"'`, f.Path, b.options.Bucket))
+				}
+				b.logger.Debugf("B2 file %+v\n", f)
+				cloudFiles[f.Path] = f
+			}
+		}()
+		if err := b.b2BucketFiles(ctx, bucketName, b2FileChan); err != nil {
+			panic(fmt.Errorf("b.LocalFilesWithB2: %w", err))
+		}
+	}()
+
+	// Wait for both to complete
+	wg.Wait()
+
+	// Now check local files that are not present in cloud
+	var count atomic.Int64
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		for path, localFile := range localFiles {
+			if _, exists := cloudFiles[path]; !exists {
+				localChan <- B2Local{File: localFile, Err: ErrLocalNotInCloud}
+				continue
+			}
+			b.logger.Debugf("localFile %+v\n", localFile)
+			localChan <- B2Local{File: localFile, Err: nil}
+			count.Add(1)
+		}
+	}()
+
+	// Now check cloud files that are not in local
+	go func() {
+		defer wg.Done()
+		for path, cloudFile := range cloudFiles {
+			if _, exists := localFiles[path]; !exists {
+				b2Chan <- B2Local{File: cloudFile, Err: ErrCloudNotInLocal}
+				continue
+			}
+			b2Chan <- B2Local{File: cloudFile, Err: nil}
+		}
+	}()
+	wg.Wait()
+	close(localChan)
+	close(b2Chan)
+	doneChan <- int(count.Load())
+}

internal/services/backblaze/cleanup.go

@@ -0,0 +1,50 @@
+package backblaze
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"github.com/rclone/rclone/backend/b2"
+	"github.com/rclone/rclone/fs/config/configmap"
+	"github.com/rclone/rclone/fs/operations"
+)
+
+func (b *BackBlaze) CleanUp(ctx context.Context, cancel context.CancelFunc, bucketName string) error {
+	var dups []duplicate
+	var err error
+	if bucketName != "" {
+		dups, err = b.listDuplicatesFromBucket(ctx, cancel, b.b2Client, bucketName)
+		if err != nil {
+			return fmt.Errorf("b.listDuplicatesFromBucket: %w", err)
+		}
+	} else {
+		dups, err = b.listDuplicates(ctx, cancel, b.b2Client)
+		if err != nil {
+			return fmt.Errorf("b.listDuplicates: %w", err)
+		}
+
+	}
+
+	if len(dups) <= 0 {
+		return nil
+	}
+
+	smpl := configmap.Simple{}
+	smpl.Set("account", b.bbID)
+	smpl.Set("key", b.bbKey)
+	smpl.Set("chunk_size", strconv.FormatInt(int64(9600), 10))
+	b.logger.Infoln("duplicates", len(dups))
+	for _, d := range dups {
+		f, err := b2.NewFs(ctx, "B2", d.dir(), smpl)
+		if err != nil {
+			return fmt.Errorf("rclonefs.NewFs %w", err)
+		}
+		if err := operations.CleanUp(ctx, f); err != nil {
+			return fmt.Errorf("operations.CleanUp %w", err)
+		}
+		b.logger.Infoln(d.dir(), "cleaned up")
+	}
+
+	return nil
+}

internal/services/backblaze/duplicates.go

@@ -0,0 +1,148 @@
+package backblaze
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+	"sync"
+
+	"github.com/kurin/blazer/b2"
+	"golang.org/x/sync/semaphore"
+)
+
+type duplicate struct {
+	bucket string
+	file   string
+	count  int
+}
+
+func (d duplicate) dir() string {
+	if !strings.Contains(d.file, "/") {
+		return d.bucket
+	}
+	splitted := strings.Split(d.file, "/")
+	return strings.Join(splitted[:(len(splitted)-1)], "/")
+}
+
+func (b *BackBlaze) ListDuplicateVersions(ctx context.Context, cancel context.CancelFunc) error {
+	b2Client, err := b2.NewClient(ctx, b.bbID, b.bbKey)
+	if err != nil {
+		return fmt.Errorf("b2.NewClient %w", err)
+	}
+
+	dups, err := b.listDuplicates(ctx, cancel, b2Client)
+	if err != nil {
+		return fmt.Errorf("b.listDuplicates: %w", err)
+	}
+
+	if len(dups) > 0 {
+		var builder strings.Builder
+		for _, dup := range dups {
+			builder.WriteString(fmt.Sprintf("%+v\n", dup))
+		}
+		return fmt.Errorf("found duplicates: %s", builder.String())
+	}
+	return nil
+}
+
+func (b *BackBlaze) listDuplicates(ctx context.Context, cancel context.CancelFunc, b2Client *b2.Client) ([]duplicate, error) {
+	buckets, err := b2Client.ListBuckets(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("b2Client.Bucket %w", err)
+	}
+
+	wg := sync.WaitGroup{}
+	dups := make([]duplicate, 0)
+
+	sm := semaphore.NewWeighted(int64(b.options.MaxWorkers))
+	wg.Add(len(buckets))
+	for _, bc := range buckets {
+		if err := sm.Acquire(ctx, 1); err != nil {
+			return nil, fmt.Errorf("sm.Acquire %w", err)
+		}
+
+		go func(bc *b2.Bucket) {
+			defer sm.Release(1)
+			defer wg.Done()
+			files := make(map[string]int, 0)
+
+			bucketIter := bc.List(ctx, b2.ListHidden())
+			if bucketIter == nil {
+				b.logger.Errorln("bucket list cannot be nil")
+				return
+			}
+
+			for {
+				if !bucketIter.Next() {
+					if bucketIter.Err() != nil {
+						b.logger.Errorf("bucketIter err %s", bucketIter.Err())
+						return
+					}
+					break
+				}
+				if bucketIter.Object() == nil {
+					b.logger.Errorln("bucketIter Object is nil")
+					continue
+				}
+				files[bucketIter.Object().Name()]++
+			}
+
+			// Search duplicates
+			for file, count := range files {
+				if count > 1 {
+					dups = append(dups, duplicate{
+						bucket: bc.Name(),
+						file:   file,
+						count:  count,
+					})
+				}
+			}
+		}(bc)
+	}
+	wg.Wait()
+
+	return dups, nil
+}
+
+func (b *BackBlaze) listDuplicatesFromBucket(ctx context.Context, cancel context.CancelFunc, b2Client *b2.Client, bucketName string) ([]duplicate, error) {
+	bucket, err := b2Client.Bucket(ctx, bucketName)
+	if err != nil {
+		return nil, fmt.Errorf("b2Client.Bucket %w", err)
+	}
+
+	dups := make([]duplicate, 0)
+	files := make(map[string]int, 0)
+
+	bucketIter := bucket.List(ctx, b2.ListHidden())
+	if bucketIter == nil {
+		return nil, errors.New("bucket list cannot be nil")
+
+	}
+
+	for {
+		if !bucketIter.Next() {
+			if bucketIter.Err() != nil {
+				return nil, fmt.Errorf("bucketIter err %w", bucketIter.Err())
+			}
+			break
+		}
+		if bucketIter.Object() == nil {
+			return nil, errors.New("bucketIter Object is nil")
+		}
+		files[bucketIter.Object().Name()]++
+	}
+
+	// Search duplicates
+	for file, count := range files {
+		if count > 1 {
+			dups = append(dups, duplicate{
+				bucket: bucket.Name(),
+				file:   file,
+				count:  count,
+			})
+		}
+	}
+
+	return dups, nil
+}

internal/services/backblaze/sync.go

@@ -0,0 +1,174 @@
+package backblaze
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+
+	"github.com/kurin/blazer/b2"
+)
+
+func (b *BackBlaze) Sync(ctx context.Context) error {
+	if b.options.Bucket == "" && (b.options.FilePath == "" || b.options.Dir == "") {
+		return fmt.Errorf("bucket name is %v | filePath is %v | dir is %v", b.options.Bucket, b.options.FilePath, b.options.Dir)
+	}
+
+	if b.options.FilePath != "" && b.options.Dir != "" {
+		return errors.New("you must select just 1 option, dir or file")
+	}
+
+	bc, err := b.b2Client.Bucket(ctx, b.options.Bucket)
+	if err != nil {
+		return fmt.Errorf("b2Client.Bucket %w", err)
+	}
+
+	if bc == nil {
+		return fmt.Errorf("bucket doesn't exist %s", b.options.Bucket)
+	}
+
+	b.logger.Infoln("bucket found:", bc.Name())
+	if b.options.FilePath != "" {
+		// Create a separate context for long-running operations
+		longRunningCtx, cancelLongRunningOps := context.WithCancel(context.Background())
+		defer cancelLongRunningOps()
+
+		b.logger.Infoln("file:", b.options.FilePath)
+
+		if err := b.copyFile(longRunningCtx, bc, b.options.FilePath); err != nil {
+			return fmt.Errorf("copyFile %w", err)
+		}
+		return nil
+	}
+
+	if b.options.Dir != "" {
+		// Create a separate context for long-running operations
+		longRunningCtx, cancelLongRunningOps := context.WithCancel(context.Background())
+		defer cancelLongRunningOps()
+
+		oldFiles, err := b.bucketFiles(longRunningCtx, bc)
+		if err != nil {
+			return fmt.Errorf("bucketFiles %w", err)
+		}
+		b.logger.Debugln(strings.Repeat("*", 40))
+		b.logger.Debugln("oldFiles to clean:\n\t\t" + strings.Join(oldFiles, "\n\t\t"))
+		b.logger.Debugln(strings.Repeat("*", 40))
+
+		fileChan := make(chan string)
+
+		var wg sync.WaitGroup
+
+		for i := 0; i < b.options.MaxWorkers; i++ {
+			wg.Add(1)
+			go func() {
+				defer wg.Done()
+				for src := range fileChan {
+					if err := b.copyFile(longRunningCtx, bc, src); err != nil {
+						b.logger.Errorf("error copying file %s: %v\n", src, err)
+						continue
+					}
+				}
+			}()
+		}
+
+		// Walk the directory and send files to the channel for uploading
+		err = filepath.WalkDir(b.options.Dir, func(path string, d fs.DirEntry, err error) error {
+			if err != nil {
+				return err
+			}
+			if !d.IsDir() {
+				fileChan <- path
+			}
+			return nil
+		})
+		if err != nil {
+			return fmt.Errorf("error walking the directory: %v", err)
+		}
+
+		// Close the channel (no more files to send)
+		close(fileChan)
+		wg.Wait()
+
+		// Cleanup old files after backup is completed
+		if err := b.cleanBucket(longRunningCtx, bc, oldFiles); err != nil {
+			return fmt.Errorf("cleanBucket %w", err)
+		}
+	}
+
+	b.logger.Infoln("copied successfully")
+	return nil
+}
+
+func (b *BackBlaze) copyFile(ctx context.Context, bucket *b2.Bucket, src string) error {
+	f, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	fi, err := f.Stat()
+	if err != nil {
+		return err
+	}
+	w := bucket.Object(fi.Name()).NewWriter(ctx)
+	w.ConcurrentUploads = b.options.ConcurrentUploads
+	w.UseFileBuffer = true
+	b.logger.Infoln("start copying ", fi.Name())
+	if _, err := io.Copy(w, f); err != nil {
+		w.Close()
+		return err
+	}
+	if err := w.Close(); err != nil {
+		return err
+	}
+
+	b.logger.Infoln("end copying ", fi.Name())
+	return nil
+}
+
+func (b *BackBlaze) cleanBucket(ctx context.Context, bucket *b2.Bucket, files []string) error {
+	var errorBuilder strings.Builder
+	for _, v := range files {
+		obj := bucket.Object(v)
+		if obj == nil {
+			b.logger.Errorln("bucket.Object is nil", v)
+			continue
+		}
+		if err := obj.Delete(ctx); err != nil {
+			errorBuilder.WriteString(fmt.Errorf("error deleting %s : %w", v, err).Error())
+			errorBuilder.WriteString("; ")
+		}
+	}
+
+	if errorBuilder.Len() > 0 {
+		return errors.New(errorBuilder.String())
+	}
+
+	return nil
+}
+
+func (b *BackBlaze) bucketFiles(ctx context.Context, bucket *b2.Bucket) ([]string, error) {
+	bucketIter := bucket.List(ctx)
+	if bucketIter == nil {
+		return nil, fmt.Errorf("bucket list cannot be nil")
+	}
+	var files []string
+	for {
+		if !bucketIter.Next() {
+			if bucketIter.Err() != nil {
+				return nil, fmt.Errorf("bucketIter err %w", bucketIter.Err())
+			}
+			break
+		}
+		if bucketIter.Object() == nil {
+			b.logger.Errorln("bucketIter Object is nil")
+			continue
+		}
+		files = append(files, bucketIter.Object().Name())
+	}
+	return files, nil
+}

internal/services/email/email.go

@@ -0,0 +1,182 @@
+package email
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/base64"
+	"fmt"
+	"io"
+	"net/smtp"
+	"strings"
+)
+
+const (
+	mime                   = "MIME-version: 1.0;\nContent-Type: text/html; charset=\"UTF-8\";\n\n"
+	subjectReport          = "B2 vs Local Files"
+	templateSuccess        = "success.html"
+	templateConfirm        = "confirm.html"
+	templateForgotPassword = "forgot_password.html"
+	templateRegister       = "register.html"
+	delimeter              = "**=myohmy689407924327"
+)
+
+type EmailService struct {
+	auth      smtp.Auth
+	host      string
+	port      string
+	from      string
+	tlsconfig *tls.Config
+}
+
+type EmailWithAttachments struct {
+	To          string
+	Bucket      string
+	BackupDir   string
+	Count       map[string]int
+	Attachments []EmailAttachment
+}
+
+type EmailAttachment struct {
+	File  io.Reader
+	Title string
+}
+
+func (e EmailAttachment) ReadContent() ([]byte, error) {
+	bts, err := io.ReadAll(e.File)
+	if err != nil {
+		return nil, fmt.Errorf("error loading attachment: %s", err)
+	}
+	return bts, nil
+}
+
+type MailServiceConfig struct {
+	Auth smtp.Auth
+	Host string
+	Port string
+	From string // Sender email address
+}
+
+func NewMailService(config MailServiceConfig) *EmailService {
+	return &EmailService{
+		auth: config.Auth,
+		host: config.Host,
+		port: config.Port,
+		from: config.From,
+		tlsconfig: &tls.Config{
+			InsecureSkipVerify: true,
+			ServerName:         config.Host,
+		},
+	}
+}
+
+func (e *EmailService) SendOK(emailData EmailWithAttachments) error {
+	template := strings.Replace(htmlTemplate, "{{bucket}}", emailData.Bucket, -1)
+	template = strings.Replace(template, "{{local_backup_path}}", emailData.BackupDir, -1)
+	for k, v := range emailData.Count {
+		template = strings.Replace(template, "{{"+k+"}}", fmt.Sprint(v), -1)
+	}
+	msg, err := newMessage(e.from, emailData.To, subjectReport).
+		withAttachments(template, emailData.Attachments)
+
+	if err != nil {
+		return fmt.Errorf("error while upload attachments %w", err)
+	}
+
+	return e.send(emailData.To, msg)
+}
+
+func (e *EmailService) send(to string, msg []byte) error {
+	c, err := smtp.Dial(e.host + ":" + e.port)
+	if err != nil {
+		return fmt.Errorf("DIAL: %s", err)
+	}
+
+	if err = c.StartTLS(e.tlsconfig); err != nil {
+		return fmt.Errorf("c.StartTLS: %s", err)
+	}
+
+	// Auth
+	if err = c.Auth(e.auth); err != nil {
+		return fmt.Errorf("c.Auth: %s", err)
+	}
+
+	// To && From
+	if err = c.Mail(e.from); err != nil {
+		return fmt.Errorf("c.Mail: %s", err)
+	}
+
+	if err = c.Rcpt(to); err != nil {
+		return fmt.Errorf("c.Rcpt: %s", err)
+	}
+
+	// Data
+	w, err := c.Data()
+	if err != nil {
+		return fmt.Errorf("c.Data: %s", err)
+	}
+
+	written, err := w.Write(msg)
+	if err != nil {
+		return fmt.Errorf("w.Write: %s", err)
+	}
+
+	if written <= 0 {
+		return fmt.Errorf("%d bytes written", written)
+	}
+
+	if err = w.Close(); err != nil {
+		return fmt.Errorf("w.Close: %s", err)
+	}
+
+	if err = c.Quit(); err != nil {
+		return fmt.Errorf("w.Quit: %s", err)
+	}
+	return nil
+}
+
+type message struct {
+	from    string
+	to      string
+	subject string
+}
+
+func newMessage(from, to, subject string) message {
+	return message{from: from, to: to, subject: subject}
+}
+
+func (m message) withAttachments(body string, attachments []EmailAttachment) ([]byte, error) {
+	headers := make(map[string]string)
+	headers["From"] = m.from
+	headers["To"] = m.to
+	headers["Subject"] = m.subject
+	headers["MIME-Version"] = "1.0"
+
+	var message bytes.Buffer
+
+	for k, v := range headers {
+		message.WriteString(k)
+		message.WriteString(": ")
+		message.WriteString(v)
+		message.WriteString("\r\n")
+	}
+
+	message.WriteString("Content-Type: " + fmt.Sprintf("multipart/mixed; boundary=\"%s\"\r\n", delimeter))
+	message.WriteString("--" + delimeter + "\r\n")
+	message.WriteString("Content-Type: text/html; charset=\"UTF-8\"\r\n\r\n")
+	message.WriteString(body + "\r\n\r\n")
+
+	for _, attachment := range attachments {
+		attachmentRawFile, err := attachment.ReadContent()
+		if err != nil {
+			return nil, err
+		}
+		message.WriteString("--" + delimeter + "\r\n")
+		message.WriteString("Content-Disposition: attachment; filename=\"" + attachment.Title + "\"\r\n")
+		message.WriteString("Content-Type: application/octet-stream\r\n")
+		message.WriteString("Content-Transfer-Encoding: base64\r\n\r\n")
+		message.WriteString(base64.StdEncoding.EncodeToString(attachmentRawFile) + "\r\n")
+	}
+
+	message.WriteString("--" + delimeter + "--") // End the message
+	return message.Bytes(), nil
+}

internal/services/email/email_test.go

@@ -0,0 +1,54 @@
+package email
+
+import (
+	"net/smtp"
+	"os"
+	"testing"
+
+	"gitea.urkob.com/urko/backblaze-backup/kit"
+	"gitea.urkob.com/urko/backblaze-backup/kit/config"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_mailService_SendOK(t *testing.T) {
+	cfg := config.NewConfig(kit.RootDir() + "/.env.test")
+
+	mailSrv := NewMailService(MailServiceConfig{
+		Auth: smtp.PlainAuth("", cfg.MailUser, cfg.MailPassword, cfg.MailHost),
+		Host: cfg.MailHost,
+		Port: cfg.MailPort,
+		From: cfg.MailFrom,
+	},
+	)
+	reader, err := os.Open("testdata/attachment1.txt")
+	require.NoError(t, err)
+	defer reader.Close()
+
+	reader2, err := os.Open("testdata/attachment2.txt")
+	require.NoError(t, err)
+	defer reader2.Close()
+
+	reader3, err := os.Open("testdata/attachment3.txt")
+	require.NoError(t, err)
+	defer reader3.Close()
+
+	data := EmailWithAttachments{
+		To: cfg.MailTo,
+		Attachments: []EmailAttachment{
+			{
+				Title: "attachment1.txt",
+				File:  reader,
+			},
+			{
+				Title: "attachment2.txt",
+				File:  reader2,
+			},
+			{
+				Title: "attachment3.txt",
+				File:  reader3,
+			},
+		},
+	}
+	err = mailSrv.SendOK(data)
+	require.NoError(t, err)
+}

internal/services/email/template.go

@@ -0,0 +1,26 @@
+package email
+
+const htmlTemplate = `<!DOCTYPE html>
+<html>
+<head>
+    <title>Report</title>
+</head>
+<body style="font-family: Arial, sans-serif; margin: 0; padding: 0;">
+    <div style="background-color: #f4f4f4; padding: 20px;">
+        <div style="max-width: 600px; background-color: #ffffff; margin: 0 auto; padding: 20px; border-radius: 4px; box-shadow: 0 0 10px rgba(0,0,0,0.1);">
+            <h2 style="color: #333333; margin-top: 0;">Bucket Report</h2>
+            <hr style="border: none; border-bottom: 1px solid #ddd;">
+            <p><strong>Local Backup Path:</strong> {{local_backup_path}}</p>
+            <p><strong>Bucket Name:</strong> {{bucket}}</p>
+            <p><strong>Local files:</strong> {{count_local}}</p>
+            <p><strong>B2 files:</strong> {{count_b2}}</p>
+            <p><strong>OK local in B2:</strong> {{count_ok}}</p>
+            <p><strong>B2 files not in local:</strong> {{count_not_in_local}}</p>
+            <p><strong>Local files not in B2:</strong> {{count_not_in_cloud}}</p>
+            <hr style="border: none; border-bottom: 1px solid #ddd;">
+            <p style="text-align: center; color: #666666;">This is an automated report, please do not reply to this email.</p>
+        </div>
+    </div>
+</body>
+</html>
+`

internal/services/email/testdata/attachment1.txt

@@ -0,0 +1 @@
+this is txt 1 attachment

internal/services/email/testdata/attachment2.txt

@@ -0,0 +1 @@
+this is txt 2 attachment

internal/services/email/testdata/attachment3.txt

@@ -0,0 +1 @@
+this is txt 3 attachment

kit/config/config.go

@@ -1,30 +1,37 @@
 package config
 
 import (
-	"log"
+	"fmt"
 
-	"gitea.urkob.com/urko/backblaze-backup/kit"
 	"github.com/joho/godotenv"
 	"github.com/kelseyhightower/envconfig"
 )
 
 type Config struct {
 	BbId     string `required:"true" split_words:"true"`
-	BbKey string `required:"false" split_words:"true"`
+	BbKey    string `required:"true" split_words:"true"`
+	LogLevel uint32 `required:"false" split_words:"true" default:"4"`
+	// Mail vars
+	MailTo       string `required:"true" split_words:"true"`
+	MailHost     string `required:"true" split_words:"true"`
+	MailPort     string `required:"true" split_words:"true"`
+	MailUser     string `required:"true" split_words:"true"`
+	MailFrom     string `required:"true" split_words:"true"`
+	MailPassword string `required:"true" split_words:"true"`
 }
 
 func NewConfig(envFile string) *Config {
 	if envFile != "" {
-		err := godotenv.Load(kit.RootDir() + "/" + envFile)
+		err := godotenv.Load(envFile)
 		if err != nil {
-			log.Fatalln("godotenv.Load:", err)
+			panic(fmt.Errorf("godotenv.Load: %w", err))
 		}
 	}
 
 	cfg := &Config{}
 	err := envconfig.Process("", cfg)
 	if err != nil {
-		log.Fatalf("envconfig.Process: %s\n", err)
+		panic(fmt.Errorf("envconfig.Process: %w", err))
 	}
 
 	return cfg

main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"os"
+	"runtime"
 
 	"gitea.urkob.com/urko/backblaze-backup/cmd"
 	"github.com/spf13/cobra"
@@ -15,14 +16,21 @@ var rootCmd = &cobra.Command{
 }
 
 func init() {
-	rootCmd.AddCommand(cmd.Sync, cmd.Versions, cmd.Cleanup)
+	rootCmd.AddCommand(cmd.Sync, cmd.Versions, cmd.Cleanup, cmd.Check)
 	cmd.Sync.PersistentFlags().String("file", "", "absolute path of the file you want to upload to backblaze")
 	cmd.Sync.PersistentFlags().String("dir", "", "absolute path of the directory you want to upload to backblaze")
 	cmd.Sync.PersistentFlags().String("bucket", "", "backblaze bucket name")
+	cmd.Sync.PersistentFlags().Int("workers", runtime.NumCPU(), "The number of worker goroutines that are spawned to handle file processing in parallel. Each worker handles the upload of one file at a time, allowing for efficient use of system resources when dealing with a large number of files. The default value is the number of CPU cores available on the system, enabling the application to automatically scale its parallel processing capabilities based on the available hardware.")
+	cmd.Sync.PersistentFlags().Int("concurrent-uploads", 4, "The number of chunk uploads that can be performed simultaneously for a single file. When a file is uploaded, it might be split into multiple chunks to enable more efficient and reliable data transfer. The concurrent-uploads flag controls how many of these chunks can be uploaded in parallel during a single file upload. This is particularly useful for large files, where parallel chunk uploads can significantly speed up the overall upload time. The default value is 4.")
+
+	cmd.Check.PersistentFlags().String("dir", "", "Specifies the absolute path of the directory containing the backup files to be compared against the Backblaze B2 bucket. This flag is mutually exclusive with the 'file' flag.")
+	cmd.Check.PersistentFlags().String("bucket", "", "Name of the Backblaze B2 bucket against which the local files or directory will be compared.")
+
+	cmd.Cleanup.PersistentFlags().String("bucket", "", "backblaze bucket name")
 }
 
 func main() {
-	if err := cmd.Sync.Execute(); err != nil {
+	if err := rootCmd.Execute(); err != nil {
 		fmt.Println(err)
 		os.Exit(1)
 	}