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cmd/era: don't let defers stack

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lightclient@protonmail.com 2023-05-23 13:29:37 +02:00 committed by lightclient
parent 6c4747fe60
commit 97b86f45ca
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1 changed files with 34 additions and 27 deletions
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61
cmd/era/main.go
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@ -220,34 +220,41 @@ func verify(ctx *cli.Context) error {
// Verify each epoch matches the expected root. // Verify each epoch matches the expected root.
for i, want := range roots { for i, want := range roots {
name := entries[i] // Wrap in function so defers don't stack.
f, err := os.Open(path.Join(dir, name)) err := func() error {
name := entries[i]
f, err := os.Open(path.Join(dir, name))
if err != nil {
return fmt.Errorf("error opening era1 file %s: %w", name, err)
}
defer f.Close()
r, err := era.NewReader(f)
if err != nil {
return fmt.Errorf("unable to make era reader: %w", err)
}
// Read accumulator and check against expected.
if got, err := r.Accumulator(); err != nil {
return fmt.Errorf("error retrieving accumulator for %s: %w", name, err)
} else if got != want {
return fmt.Errorf("invalid root %s: got %s, want %s", name, got, want)
}
// Recompute accumulator.
if err := checkAccumulator(r); err != nil {
return fmt.Errorf("error verify era1 file %s: %w", name, err)
}
// Give the user some feedback that something is happening.
if time.Since(reported) >= 8*time.Second {
fmt.Printf("Verifying Era1 files \t\t verified=%d,\t elapsed=%s\n", i, common.PrettyDuration(time.Since(start)))
reported = time.Now()
}
return nil
}()
if err != nil { if err != nil {
return fmt.Errorf("error opening era1 file %s: %w", name, err) return err
}
defer f.Close()
r, err := era.NewReader(f)
if err != nil {
return fmt.Errorf("unable to make era reader: %w", err)
}
// Read accumulator and check against expected.
if got, err := r.Accumulator(); err != nil {
return fmt.Errorf("error retrieving accumulator for %s: %w", name, err)
} else if got != want {
return fmt.Errorf("invalid root %s: got %s, want %s", name, got, want)
}
// Recompute accumulator.
if err := checkAccumulator(r); err != nil {
return fmt.Errorf("error verify era1 file %s: %w", name, err)
}
// Give the user some feedback that something is happening.
if time.Since(reported) >= 8*time.Second {
fmt.Printf("Verifying Era1 files \t\t verified=%d,\t elapsed=%s\n", i, common.PrettyDuration(time.Since(start)))
reported = time.Now()
} }
} }