// Stat returns metadata about the file or directory at path,
// in revision *storeRev. If storeRev is nil, uses the current
// revision.
func (c *Conn) Stat(path string, storeRev *int64) (len int, fileRev int64, err error) {
var t txn
t.req.Verb = newRequest_Verb(request_STAT)
t.req.Path = &path
t.req.Rev = storeRev
err = c.call(&t)
if err != nil {
return 0, 0, err
}
return int(proto.GetInt32(t.resp.Len)), proto.GetInt64(t.resp.Rev), nil
}
// Returns the body and revision of the file at path,
// as of store revision *rev.
// If rev is nil, uses the current state.
func (c *Conn) Get(file string, rev *int64) ([]byte, int64, error) {
var t txn
t.req.Verb = newRequest_Verb(request_GET)
t.req.Path = &file
t.req.Rev = rev
err := c.call(&t)
if err != nil {
return nil, 0, err
}
return t.resp.Value, proto.GetInt64(t.resp.Rev), nil
}
// Sets the contents of file to body, if it hasn't been modified since oldRev.
func (c *Conn) Set(file string, oldRev int64, body []byte) (newRev int64, err error) {
var t txn
t.req.Verb = newRequest_Verb(request_SET)
t.req.Path = &file
t.req.Value = body
t.req.Rev = &oldRev
err = c.call(&t)
if err != nil {
return
}
return proto.GetInt64(t.resp.Rev), nil
}
// protoToKey converts a Reference proto to a *Key.
func protoToKey(r *pb.Reference) (k *Key, err error) {
appID := proto.GetString(r.App)
namespace := proto.GetString(r.NameSpace)
for _, e := range r.Path.Element {
k = &Key{
kind: proto.GetString(e.Type),
stringID: proto.GetString(e.Name),
intID: proto.GetInt64(e.Id),
parent: k,
appID: appID,
namespace: namespace,
}
if !k.valid() {
return nil, ErrInvalidKey
}
}
return
}