tijo-export: reduce memory usage

andybalholm

Apr 12, 2023, 6:30 PM

4ROXGUTY2IM5NTYAS5XANJAQH3Z6375RVGZAS776ISEP7I23YTHQC

Dependencies

• [2] XJAW762U Add tijo-export command

Change contents

• edit in cmd/tijo-export/main.go at line 151
  [2.5771]→[2.5771:5883](∅→∅)
  − }

  −

  − if err := stream.WriteTo(os.Stdout); err != nil {

  − printErrorAndExit("Error writing output stream:", err)
• replacement in cmd/tijo-export/fast-export.go at line 6
  [2.6750]→[2.6750:6756](∅→∅)
  − "io"
  [2.6750]

  [2.6756]
  + "os"
• replacement in cmd/tijo-export/fast-export.go at line 15
  [2.6818]→[2.6818:6939](∅→∅)
  − func (f FileModify) WriteTo(w io.Writer) error {

  − _, err := fmt.Fprintf(w, "M 644 :%d %s\n", f.Blob, f.Path)

  − return err
  [2.6818]

  [2.6939]
  + func (f FileModify) write() {

  + fmt.Printf("M 644 :%d %s\n", f.Blob, f.Path)
• replacement in cmd/tijo-export/fast-export.go at line 30
  [2.7143]→[2.7143:7279](∅→∅)
  − func (c Commit) WriteTo(w io.Writer) error {

  − if _, err := fmt.Fprintln(w, "commit refs/heads/"+c.Branch); err != nil {

  − return err

  − }
  [2.7143]

  [2.7279]
  + func (c Commit) write() {

  + fmt.Println("commit refs/heads/" + c.Branch)
• replacement in cmd/tijo-export/fast-export.go at line 33
  [2.7297]→[2.7297:7647](∅→∅)
  − if _, err := fmt.Fprintf(w, "mark :%d\n", c.Mark); err != nil {

  − return err

  − }

  − }

  − if _, err := fmt.Fprintln(w, "committer", c.Committer, formatTime(c.Timestamp)); err != nil {

  − return err

  − }

  − if _, err := fmt.Fprintln(w, "data", len(c.Message)); err != nil {

  − return err

  − }

  − if _, err := fmt.Fprintln(w, c.Message); err != nil {

  − return err
  [2.7297]

  [2.7647]
  + fmt.Printf("mark :%d\n", c.Mark)
• edit in cmd/tijo-export/fast-export.go at line 35
  [2.7650]

  [2.7650]
  + fmt.Println("committer", c.Committer, formatTime(c.Timestamp))

  + fmt.Println("data", len(c.Message))

  + fmt.Println(c.Message)
• replacement in cmd/tijo-export/fast-export.go at line 39
  [2.7668]→[2.7668:7752](∅→∅)
  − if _, err := fmt.Fprintf(w, "from :%d\n", c.From); err != nil {

  − return err

  − }
  [2.7668]

  [2.7752]
  + fmt.Printf("from :%d\n", c.From)
• replacement in cmd/tijo-export/fast-export.go at line 42
  [2.7773]→[2.7773:7849](∅→∅)
  − if _, err := fmt.Fprintln(w, "deleteall"); err != nil {

  − return err

  − }
  [2.7773]

  [2.7849]
  + fmt.Println("deleteall")
• replacement in cmd/tijo-export/fast-export.go at line 45
  [2.7889]→[2.7889:8006](∅→∅)
  − if err := m.WriteTo(w); err != nil {

  − return err

  − }

  − }

  − if _, err := fmt.Fprintln(w); err != nil {

  − return err
  [2.7889]

  [2.8006]
  + m.write()
• replacement in cmd/tijo-export/fast-export.go at line 47
  [2.8009]→[2.8009:8021](∅→∅)
  − return nil
  [2.8009]

  [2.8021]
  + fmt.Println()
• replacement in cmd/tijo-export/fast-export.go at line 55
  [2.8069]→[2.8069:8180](∅→∅)
  − func (b Blob) WriteTo(w io.Writer) error {

  − if _, err := fmt.Fprintln(w, "blob"); err != nil {

  − return err

  − }
  [2.8069]

  [2.8180]
  + func (b Blob) write() {

  + fmt.Println("blob")
• replacement in cmd/tijo-export/fast-export.go at line 58
  [2.8198]→[2.8198:8282](∅→∅)
  − if _, err := fmt.Fprintf(w, "mark :%d\n", b.Mark); err != nil {

  − return err

  − }
  [2.8198]

  [2.8282]
  + fmt.Printf("mark :%d\n", b.Mark)
• replacement in cmd/tijo-export/fast-export.go at line 60
  [2.8285]→[2.8285:8498](∅→∅)
  − if _, err := fmt.Fprintln(w, "data", len(b.Data)); err != nil {

  − return err

  − }

  − if _, err := w.Write(b.Data); err != nil {

  − return err

  − }

  − if _, err := fmt.Fprintln(w); err != nil {

  − return err

  − }

  − return nil
  [2.8285]

  [2.8498]
  + fmt.Println("data", len(b.Data))

  + os.Stdout.Write(b.Data)

  + fmt.Println()
• replacement in cmd/tijo-export/fast-export.go at line 65
  [2.8501]→[2.8501:8579](∅→∅)
  − // A FastExportStream is an in-memory representation of a fast-export stream.
  [2.8501]

  [2.8579]
  + // A FastExportStream is a representation of a fast-export stream.
• edit in cmd/tijo-export/fast-export.go at line 67
  [2.8610]→[2.8610:8645](∅→∅)
  − Commits []Commit

  − Blobs []Blob

  −
• replacement in cmd/tijo-export/fast-export.go at line 75
  [2.8789]→[2.8789:9243](∅→∅)
  − f.Commits = append(f.Commits, c)

  − }

  −

  − func (f *FastExportStream) ReverseCommits() {

  − for i, j := 0, len(f.Commits)-1; j > i; i, j = i+1, j-1 {

  − f.Commits[i], f.Commits[j] = f.Commits[j], f.Commits[i]

  − }

  − }

  −

  − func (f *FastExportStream) WriteTo(w io.Writer) error {

  − for _, b := range f.Blobs {

  − if err := b.WriteTo(w); err != nil {

  − return err

  − }

  − }

  − for _, c := range f.Commits {

  − if err := c.WriteTo(w); err != nil {

  − return err

  − }

  − }

  − return nil
  [2.8789]

  [2.9243]
  + c.write()
• edit in cmd/tijo-export/fast-export.go at line 88
  [2.9498]→[2.9498:9528](∅→∅)
  − f.Blobs = append(f.Blobs, b)
• edit in cmd/tijo-export/fast-export.go at line 94
  [2.9625]

  [2.9625]
  + b.write()

  +