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blobref: add Sha1FromString helper and SizedBlobRef Equal/String

This commit is contained in:
Brad Fitzpatrick 2011-05-29 10:38:21 -07:00
parent eb0bf1e3d1
commit f4512d3c6c
1 changed files with 16 additions and 2 deletions
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18
lib/go/camli/blobref/blobref.go
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@ -48,6 +48,14 @@ type SizedBlobRef struct {
Size int64
}
func (sb *SizedBlobRef) Equal(o SizedBlobRef) bool {
return sb.Size == o.Size && sb.BlobRef.String() == o.BlobRef.String()
}
func (sb *SizedBlobRef) String() string {
return fmt.Sprintf("[%s %d bytes]", sb.BlobRef.String(), sb.Size)
}
type ReadSeekCloser interface {
io.Reader
io.Seeker
@ -122,8 +130,14 @@ func blobIfValid(hashname, digest string) *BlobRef {
return newBlob(hashname, digest)
}
func FromHash(name string, h hash.Hash) *BlobRef {
return newBlob(name, fmt.Sprintf("%x", h.Sum()))
func FromHash(hashfunc string, h hash.Hash) *BlobRef {
return newBlob(hashfunc, fmt.Sprintf("%x", h.Sum()))
}
func Sha1FromString(s string) *BlobRef {
s1 := sha1.New()
s1.Write([]byte(s))
return FromHash("sha1", s1)
}
// FromPattern takes a pattern and if it matches 's' with two exactly two valid