.

go/zodb/storage/fs1/fs1tools/dump.go

@@ -53,7 +53,7 @@ type Dumper interface {
 	DumpTxn(buf *xfmt.Buffer, it *fs1.Iter) error
 
 	// DumpEndOK is called at the end of successfull dump.
-	DumpEndOK(buf *xfmt.Buffer)
+	DumpEndOK(buf *xfmt.Buffer) error
 }
 
 // Dump dumps content of a FileStorage file @ path.
@@ -123,7 +123,10 @@ func Dump(w io.Writer, path string, dir fs1.IterDir, d Dumper) (err error) {
 		}
 	}
 
-	d.DumpEndOK(buf)
+	err = d.DumpEndOK(buf)
+	if err != nil {
+		return err
+	}
 	return nil
 }
 
@@ -204,7 +207,8 @@ func (d *DumperFsDump) DumpTxn(buf *xfmt.Buffer, it *fs1.Iter) error {
 	}
 }
 
-func (d *DumperFsDump) DumpEndOK(buf *xfmt.Buffer) {
+func (d *DumperFsDump) DumpEndOK(buf *xfmt.Buffer) error {
+	return nil
 }
 
 // DumperFsDumpVerbose implements a very verbose dumper with output identical
@@ -290,7 +294,8 @@ func (d *DumperFsDumpVerbose) dumpData(buf *xfmt.Buffer, it *fs1.Iter) error {
 	return nil
 }
 
-func (d *DumperFsDumpVerbose) DumpEndOK(buf *xfmt.Buffer) {
+func (d *DumperFsDumpVerbose) DumpEndOK(buf *xfmt.Buffer) error {
+	return nil
 }
 
 const dumpSummary = "dump database transactions"
@@ -395,7 +400,8 @@ func (d *DumperFsTail) DumpTxn(buf *xfmt.Buffer, it *fs1.Iter) error {
 	return nil
 }
 
-func (d *DumperFsTail) DumpEndOK(buf *xfmt.Buffer) {
+func (d *DumperFsTail) DumpEndOK(buf *xfmt.Buffer) error {
+	return nil
 }
 
 const tailSummary = "dump last few transactions of a database"

go/zodb/storage/fs1/fs1tools/verify.go

@@ -57,18 +57,25 @@ func Verify(w io.Writer, path string, verbose int, progress bool) (err error) {
 		tick := time.NewTicker(time.Second / 4)
 		defer tick.Stop()
 
-		v.progress = func(pos int64) error {
+		xcr := ""
+		if verbose > 0 {
+			xcr = "\n"
+		}
+		v.progress = func(force bool) error {
+			if !force {
 				select {
 				case <-tick.C:
 				default:
 					return nil
 				}
+			}
 
 			_, err := fmt.Fprintf(w,
-				"\rVerified data bytes: %.1f%% (%d/%d);  #txn: %d",
-				100 * float64(pos) / float64(fsize),
-				pos, fsize,
-				v.ntxn)
+				"\rVerified data bytes: %.1f%% (%d/%d);  #txn: %d%s",
+				100 * float64(v.donePos) / float64(fsize),
+				v.donePos, fsize,
+				v.ntxn,
+				xcr)
 			return err
 		}
 	}
@@ -84,7 +91,8 @@ type Verifier struct {
 	// for loading data
 	dhLoading fs1.DataHeader
 
-	progress func(pos int64) error
+	donePos  int64                  // done verifying till this position
+	progress func(force bool) error
 }
 
 func (v *Verifier) DumperName() string {
@@ -130,7 +138,8 @@ func (v *Verifier) DumpTxn(buf *xfmt.Buffer, it *fs1.Iter) error {
 	v.ntxn++
 
 	if v.progress != nil {
-		err := v.progress(txnh.Pos)
+		v.donePos = txnh.Pos + txnh.Len
+		err := v.progress(/*force=*/false)
 		if err != nil {
 			return err
 		}
@@ -139,10 +148,17 @@ func (v *Verifier) DumpTxn(buf *xfmt.Buffer, it *fs1.Iter) error {
 	return nil
 }
 
-func (v *Verifier) DumpEndOK(buf *xfmt.Buffer) {
+func (v *Verifier) DumpEndOK(buf *xfmt.Buffer) error {
+	if v.progress != nil {
+		err := v.progress(/*force=*/true)
+		if err != nil {
+			return err
+		}
+	}
 	if v.verbose >= 1 {
 		buf .S("no errors detected\n")
 	}
+	return nil
 }