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|
package steam
import (
"archive/tar"
"io"
"path/filepath"
"time"
)
const (
defaultDirectoryMode = 0775
defaultFileMode = 0644
)
func (l *Library) Package(game string, wr io.Writer) error {
l.m.Lock()
if _, ok := l.Games()[game]; !ok {
l.m.Unlock()
return E_GameDoesNotExist
}
g := l.Games()[game]
j := newJob("package", g)
defer j.done()
l.status.addJob(j)
j.setSize(g.GetSizeBytes())
// Invert the writer, so we can break up the copy and get progress
// information in here
rdr, pwrtr := io.Pipe()
go func() {
err := l.packagePrimitive(j, g, pwrtr)
if err != nil {
j.addError(err)
}
}()
var total int64
for {
n, err := io.CopyN(wr, rdr, updateEveryNBytes)
if err == io.EOF {
break
}
if err != nil {
j.addError(err)
return err
}
total += n
j.setTransferred(total)
elapsedSeconds := time.Since(*j.StartTime()).Seconds()
rate := float64(total) / elapsedSeconds
// fmt.Println("rate in bytes/second: ", formatBytes(int64(rate)))
estSize := j.GetSize()
if estSize == nil {
j.addError(E_NoEstimatedSize)
continue
}
remainingBytes := float64(*estSize - total)
// fmt.Println("remaining bytes: ", formatBytes(int64(remainingBytes)))
seconds := remainingBytes / rate
duration := time.Duration(seconds * 1000 * 1000 * 1000)
// fmt.Println("Raw duration: ", duration)
j.setETA(duration)
}
return nil
}
// Package writes the package to wr, returning errors if any
func (l *Library) packagePrimitive(g *Game, wr io.WriteCloser) error {
acf, err := FindACF(l.folder, g.Name)
if err != nil {
j.addError(err)
return err
}
twriter := tar.NewWriter(wr)
paths := []string{
filepath.Join(l.folder, "common", g.Name),
acf,
}
for _, pth := range paths {
err := filepath.Walk(pth, tarWalkfn(twriter, l.folder))
if err != nil {
j.addError(err)
return err
}
}
err = twriter.Flush()
if err != nil {
j.addError(err)
return err
}
err = twriter.Close()
if err != nil {
j.addError(err)
return err
}
err = wr.Close()
if err != nil {
j.addError(err)
return err
}
return err
}
|
