goadb/sync_client.go
2015-07-12 00:37:58 -07:00

86 lines
1.9 KiB
Go

// TODO(z): Implement send.
package goadb
import (
"io"
"os"
"time"
"github.com/zach-klippenstein/goadb/util"
"github.com/zach-klippenstein/goadb/wire"
)
var zeroTime = time.Unix(0, 0).UTC()
func stat(conn *wire.SyncConn, path string) (*DirEntry, error) {
if err := conn.SendOctetString("STAT"); err != nil {
return nil, err
}
if err := conn.SendString(path); err != nil {
return nil, err
}
id, err := conn.ReadOctetString()
if err != nil {
return nil, err
}
if id != "STAT" {
return nil, util.Errorf(util.AssertionError, "expected stat ID 'STAT', but got '%s'", id)
}
return readStat(conn)
}
func listDirEntries(conn *wire.SyncConn, path string) (entries *DirEntries, err error) {
if err = conn.SendOctetString("LIST"); err != nil {
return
}
if err = conn.SendString(path); err != nil {
return
}
return &DirEntries{scanner: conn}, nil
}
func receiveFile(conn *wire.SyncConn, path string) (io.ReadCloser, error) {
if err := conn.SendOctetString("RECV"); err != nil {
return nil, err
}
if err := conn.SendString(path); err != nil {
return nil, err
}
return newSyncFileReader(conn), nil
}
func readStat(s wire.SyncScanner) (entry *DirEntry, err error) {
mode, err := s.ReadFileMode()
if err != nil {
err = util.WrapErrf(err, "error reading file mode: %v", err)
return
}
size, err := s.ReadInt32()
if err != nil {
err = util.WrapErrf(err, "error reading file size: %v", err)
return
}
mtime, err := s.ReadTime()
if err != nil {
err = util.WrapErrf(err, "error reading file time: %v", err)
return
}
// adb doesn't indicate when a file doesn't exist, but will return all zeros.
// Theoretically this could be an actual file, but that's very unlikely.
if mode == os.FileMode(0) && size == 0 && mtime == zeroTime {
return nil, util.Errorf(util.FileNoExistError, "file doesn't exist")
}
entry = &DirEntry{
Mode: mode,
Size: size,
ModifiedAt: mtime,
}
return
}