4e8e71e4e2
This is not yet working, it's just a direct copy of the Manager of Flamenco 2, with Logrus replaced by Zerolog. The API has been documented in flamenco-manager.yaml as a starting point for the integration.
82 lines
2.2 KiB
Go
82 lines
2.2 KiB
Go
/* (c) 2019, Blender Foundation - Sybren A. Stüvel
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package hasher
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import (
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"crypto/sha256"
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"fmt"
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"io"
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)
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// Copy copies from src to dst and computes a checksum on the copied bytes.
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func Copy(dst io.Writer, src io.Reader) (written int64, checksum string, err error) {
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hasher := sha256.New()
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var buf []byte
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// copied from io.copyBuffer
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if buf == nil {
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size := 32 * 1024
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if l, ok := src.(*io.LimitedReader); ok && int64(size) > l.N {
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if l.N < 1 {
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size = 1
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} else {
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size = int(l.N)
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}
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}
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buf = make([]byte, size)
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}
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// copied from io.copyBuffer
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for {
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nr, er := src.Read(buf)
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if nr > 0 {
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// Write to the hasher. I'm assuming this always works
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// because there is no actual writing to anything.
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hasher.Write(buf[0:nr])
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// Write to the output writer
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nw, ew := dst.Write(buf[0:nr])
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if nw > 0 {
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written += int64(nw)
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}
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if ew != nil {
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err = ew
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break
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}
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if nr != nw {
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err = io.ErrShortWrite
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break
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}
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}
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if er != nil {
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if er != io.EOF {
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err = er
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}
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break
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}
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}
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hashsum := hasher.Sum(nil)
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return written, fmt.Sprintf("%x", hashsum), err
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}
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