Add support for multiple hash types.

Add support for multiple hash types with negotiation of common hash types for comparison.

Manually rebased version of #277 (see discussion there)
This commit is contained in:
klauspost 2016-01-11 13:39:33 +01:00
parent 2142c75846
commit 78c3a5ccfa
22 changed files with 815 additions and 135 deletions

View file

@ -533,6 +533,11 @@ func (f *Fs) Precision() time.Duration {
return fs.ModTimeNotSupported
}
// Hashes returns the supported hash sets.
func (f *Fs) Hashes() fs.HashSet {
return fs.HashSet(fs.HashMD5)
}
// Copy src to this remote using server side copy operations.
//
// This is stored with the remote path given
@ -585,8 +590,11 @@ func (o *Object) Remote() string {
return o.remote
}
// Md5sum returns the Md5sum of an object returning a lowercase hex string
func (o *Object) Md5sum() (string, error) {
// Hash returns the Md5sum of an object returning a lowercase hex string
func (o *Object) Hash(t fs.HashType) (string, error) {
if t != fs.HashMD5 {
return "", fs.ErrHashUnsupported
}
if o.info.ContentProperties.Md5 != nil {
return *o.info.ContentProperties.Md5, nil
}