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onedrive: More accurately check if root is found - fixes #3164

This commit is contained in:
Cnly 2019-05-21 15:45:03 +08:00 committed by Nick Craig-Wood
parent ac4c8d8dfc
commit e4c2468244
1 changed files with 13 additions and 3 deletions
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16
backend/onedrive/onedrive.go
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@ -385,9 +385,19 @@ func (f *Fs) readMetaDataForPath(path string) (info *api.Item, resp *http.Respon
var dirCacheFoundRoot bool
var rootNormalizedID string
if f.dirCache != nil {
var ok bool
if rootNormalizedID, ok = f.dirCache.Get(""); ok {
dirCacheFoundRoot = true
var dirCacheRootIDExists bool
rootNormalizedID, dirCacheRootIDExists = f.dirCache.Get("")
if f.root == "" {
// if f.root == "", it means f.root is the absolute root of the drive
// and its ID should have been found in NewFs
dirCacheFoundRoot = dirCacheRootIDExists
} else if _, err := f.dirCache.RootParentID(); err == nil {
// if root is in a folder, it must have a parent folder, and
// if dirCache has found root in NewFs, the parent folder's ID
// should be present.
// This RootParentID() check is a fix for #3164 which describes
// a possible case where the root is not found.
dirCacheFoundRoot = dirCacheRootIDExists
}
}