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|
package steam
import (
"archive/tar"
"io"
"os"
"path/filepath"
"strings"
)
const (
defaultDirectoryMode = 0775
defaultFileMode = 0644
)
// Package writes the package to wr, returning errors if any
func (l *Library) Package(game string, wr io.WriteCloser) error {
g, ok := l.games[game]
if !ok {
return E_GameDoesNotExist
}
j := newJob("package", g)
defer j.done()
l.status.addJob(j)
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
}
// Extract will read a tarball from the io.Reader and install the game into
// the current library path. This offers no visibility into the progress,
// as it does not update the job status on the progress, though it will
// populate errors.
//
// Most callers will want to use ExtractHTTP or ExtractFile instead
func (l *Library) Extract(r io.Reader) (*Game, error) {
g := &Game{LibraryPath: l.folder}
j := newJob("extract", g)
defer j.done()
l.status.addJob(j)
return l.extractPrimitive(j, g, r)
}
func (l *Library) extractPrimitive(j *Job, g *Game, r io.Reader) (*Game, error) {
treader := tar.NewReader(r)
for {
hdr, err := treader.Next()
if err == io.EOF {
// We've reached the end! Whoee
break
}
if err != nil {
j.addError(err)
return nil, err
}
fileName := filepath.ToSlash(hdr.Name)
if g.Name == "" {
s := strings.Split(fileName, "/")
if len(s) >= 2 {
g.Name = s[1]
}
}
fileName = filepath.Join(l.folder, fileName)
info := hdr.FileInfo()
if info.IsDir() {
// I don't like hard-coded permissions but it
// it helps with overall platform compatibility
err = os.MkdirAll(fileName, defaultDirectoryMode)
if err != nil {
j.addError(err)
return nil, err
}
continue
}
err = os.MkdirAll(filepath.Dir(fileName), defaultDirectoryMode)
if err != nil {
j.addError(err)
return nil, err
}
// Create a file handle to work with
f, err := os.OpenFile(fileName, os.O_CREATE|os.O_TRUNC|os.O_WRONLY,
defaultFileMode)
if err != nil {
j.addError(err)
return nil, err
}
if _, err := io.Copy(f, treader); err != nil {
j.addError(err)
f.Close()
return nil, err
}
f.Close()
}
err := g.SetSizeInfo()
if err != nil {
j.addError(err)
return nil, err
}
l.m.Lock()
l.games[g.Name] = g
l.m.Unlock()
return g, nil
}
// Delete removes all of the game files and the ACF
func (l *Library) Delete(game string) error {
g, ok := l.games[game]
if !ok {
return E_GameDoesNotExist
}
j := newJob("delete", g)
defer j.done()
l.status.addJob(j)
acf, err := FindACF(l.folder, game)
if err != nil {
j.addError(err)
return err
}
if err := os.Remove(acf); err != nil {
j.addError(err)
return err
}
err = os.RemoveAll(filepath.Join(l.folder, "common", g.Name))
if err != nil {
j.addError(err)
return err
}
l.m.Lock()
delete(l.games, game)
l.m.Unlock()
return nil
}
|
