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Make NewObject return an error

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* make it return an error
  * make a canonical error fs.ErrorNotFound
  * make a test for it
  * remove logs/debugs of error
This commit is contained in:
Nick Craig-Wood
2016-06-25 21:23:20 +01:00
parent b1f131964e
commit ab43005422
13 changed files with 268 additions and 208 deletions
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57
dropbox/dropbox.go
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@@ -13,6 +13,7 @@ import (
"io"
"io/ioutil"
"log"
"net/http"
"path"
"regexp"
"strings"
@@ -198,8 +199,8 @@ func (f *Fs) setRoot(root string) {
// Return an Object from a path
//
// May return nil if an error occurred
func (f *Fs) newObjectWithInfo(remote string, info *dropbox.Entry) fs.Object {
// If it can't be found it returns the error fs.ErrorObjectNotFound.
func (f *Fs) newObjectWithInfo(remote string, info *dropbox.Entry) (fs.Object, error) {
o := &Object{
fs: f,
remote: remote,
@@ -209,17 +210,15 @@ func (f *Fs) newObjectWithInfo(remote string, info *dropbox.Entry) fs.Object {
} else {
err := o.readEntryAndSetMetadata()
if err != nil {
// logged already fs.Debug("Failed to read info: %s", err)
return nil
return nil, err
}
}
return o
return o, nil
}
// NewObject returns an Object from a path
//
// May return nil if an error occurred
func (f *Fs) NewObject(remote string) fs.Object {
// NewObject finds the Object at remote. If it can't be found
// it returns the error fs.ErrorObjectNotFound.
func (f *Fs) NewObject(remote string) (fs.Object, error) {
return f.newObjectWithInfo(remote, nil)
}
@@ -322,10 +321,13 @@ func (f *Fs) list(out fs.ListOpts, dir string) {
out.SetError(err)
return
}
if o := f.newObjectWithInfo(path, entry); o != nil {
if out.Add(o) {
return
}
o, err := f.newObjectWithInfo(path, entry)
if err != nil {
out.SetError(err)
return
}
if out.Add(o) {
return
}
} else {
nameTree.PutFile(parentPath, lastComponent, entry)
@@ -345,10 +347,12 @@ func (f *Fs) list(out fs.ListOpts, dir string) {
if err != nil {
return err
}
if o := f.newObjectWithInfo(path, entry); o != nil {
if out.Add(o) {
return fs.ErrorListAborted
}
o, err := f.newObjectWithInfo(path, entry)
if err != nil {
return err
}
if out.Add(o) {
return fs.ErrorListAborted
}
return nil
}
@@ -387,10 +391,13 @@ func (f *Fs) listOneLevel(out fs.ListOpts, dir string) {
return
}
} else {
if o := f.newObjectWithInfo(remote, entry); o != nil {
if out.Add(o) {
return
}
o, err := f.newObjectWithInfo(remote, entry)
if err != nil {
out.SetError(err)
return
}
if out.Add(o) {
return
}
}
}
@@ -622,8 +629,12 @@ func (o *Object) setMetadataFromEntry(info *dropbox.Entry) {
func (o *Object) readEntry() (*dropbox.Entry, error) {
entry, err := o.fs.db.Metadata(o.remotePath(), false, false, "", "", metadataLimit)
if err != nil {
fs.Debug(o, "Error reading file: %s", err)
return nil, errors.Wrap(err, "error reading file")
if dropboxErr, ok := err.(*dropbox.Error); ok {
if dropboxErr.StatusCode == http.StatusNotFound {
return nil, fs.ErrorObjectNotFound
}
}
return nil, err
}
return entry, nil
}