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package main
import (
"fmt"
"io"
"os"
"strings"
"time"
)
func fmtDuration(d time.Duration) string {
h := d / time.Hour
d -= h * time.Hour
m := d / time.Minute
d -= m * time.Minute
s := d / time.Second
return fmt.Sprintf("%02d:%02d:%02d", h, m, s)
}
func usage(w io.Writer) {
fmt.Fprintf(w, "Usage: %s refs/FROM_REFNAME refs/TO_PREFIX\n", os.Args[0])
fmt.Fprintf(w, " or: %s -h|--help\n", os.Args[0])
fmt.Fprintf(w, "Read an Arch Linux svntogit branch, and turn it into AUR-style branches\n")
}
func main() {
for _, arg := range os.Args[1:] {
switch arg {
case "-h", "--help":
usage(os.Stdout)
os.Exit(0)
}
}
if len(os.Args) != 3 {
usage(os.Stderr)
os.Exit(2)
}
fromRef := os.Args[1]
toPfx := os.Args[2]
if !strings.HasPrefix(fromRef, "refs/") || !strings.HasPrefix(fromRef, "refs/") {
fmt.Fprintln(os.Stderr, "ref names and prefixes must start with \"refs/\"")
usage(os.Stderr)
os.Exit(2)
}
commits := 0
beg := time.Now()
maxline := 0
status := func() {
duration := time.Since(beg)
line := fmt.Sprintf("[%s] %d commits (%.2f commit/s)",
fmtDuration(duration),
commits,
float64(commits)/duration.Seconds())
if len(line) > maxline {
maxline = len(line)
}
fmt.Fprintf(os.Stderr, "\r%-[1]*[2]s", maxline, line)
}
filter, err := NewFilter(fromRef, toPfx)
if err != nil {
fmt.Fprintln(os.Stderr, "Could not initialize filter:", err)
os.Exit(1)
}
filter.OnCommit = func() {
commits++
status()
}
err = filter.Run()
fmt.Fprintln(os.Stderr)
if err != nil {
fmt.Fprintln(os.Stderr, "Error:", err)
os.Exit(1)
}
}
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