potyarkin/distribution
1
0
Fork 0
forked from TrueCloudLab/distribution
Code Pull requests Activity

Use "Size" field to describe blobs over "Length"

Browse source 
After consideration, we've changed the main descriptor field name to for number
of bytes to "size" to match convention. While this may be a subjective
argument, commonly we refer to files by their "size" rather than their
"length". This will match other conventions, like `(FileInfo).Size()` and
methods on `io.SizeReaderAt`. Under more broad analysis, this argument doesn't
necessarily hold up. If anything, "size" is shorter than "length".

Signed-off-by: Stephen J Day <stephen.day@docker.com>
This commit is contained in:
Stephen J Day 2015-07-17 17:07:11 -07:00
parent c958371f4b
commit 249ad3b76d
9 changed files with 38 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

10
docs/storage/blobwriter.go
View file

@ -148,7 +148,7 @@ func (bw *blobWriter) validateBlob(ctx context.Context, desc distribution.Descri
// NOTE(stevvooe): We really don't care if the file is
// not actually present for the reader. We now assume
// that the desc length is zero.
desc.Length = 0
desc.Size = 0
default:
// Any other error we want propagated up the stack.
return distribution.Descriptor{}, err
@ -161,14 +161,14 @@ func (bw *blobWriter) validateBlob(ctx context.Context, desc distribution.Descri
bw.size = fi.Size()
}
if desc.Length > 0 {
if desc.Length != bw.size {
if desc.Size > 0 {
if desc.Size != bw.size {
return distribution.Descriptor{}, distribution.ErrBlobInvalidLength
}
} else {
// if provided 0 or negative length, we can assume caller doesn't know or
// care about length.
desc.Length = bw.size
desc.Size = bw.size
}
// TODO(stevvooe): This section is very meandering. Need to be broken down
@ -216,7 +216,7 @@ func (bw *blobWriter) validateBlob(ctx context.Context, desc distribution.Descri
}
// Read the file from the backend driver and validate it.
fr, err := newFileReader(ctx, bw.bufferedFileWriter.driver, bw.path, desc.Length)
fr, err := newFileReader(ctx, bw.bufferedFileWriter.driver, bw.path, desc.Size)
if err != nil {
return distribution.Descriptor{}, err
}