mirror of
https://github.com/restic/restic.git
synced 2024-08-02 10:33:25 +02:00
6e1a3987b7
This commit adds a command called `self-update` which downloads the latest released version of restic from GitHub and replacing the current binary with it. It does not rely on any external program (so it'll work everywhere), but still verifies the GPG signature using the embedded GPG public key. By default, the `self-update` command is hidden behind the `selfupdate` built tag, which is only set when restic is built using `build.go`. The reason for this is that downstream distributions will then not include the command by default, so users are encouraged to use the platform-specific distribution mechanism.
90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package packet
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import (
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"encoding/binary"
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"io"
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)
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// LiteralData represents an encrypted file. See RFC 4880, section 5.9.
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type LiteralData struct {
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IsBinary bool
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FileName string
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Time uint32 // Unix epoch time. Either creation time or modification time. 0 means undefined.
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Body io.Reader
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}
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// ForEyesOnly returns whether the contents of the LiteralData have been marked
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// as especially sensitive.
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func (l *LiteralData) ForEyesOnly() bool {
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return l.FileName == "_CONSOLE"
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}
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func (l *LiteralData) parse(r io.Reader) (err error) {
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var buf [256]byte
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_, err = readFull(r, buf[:2])
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if err != nil {
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return
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}
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l.IsBinary = buf[0] == 'b'
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fileNameLen := int(buf[1])
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_, err = readFull(r, buf[:fileNameLen])
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if err != nil {
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return
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}
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l.FileName = string(buf[:fileNameLen])
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_, err = readFull(r, buf[:4])
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if err != nil {
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return
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}
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l.Time = binary.BigEndian.Uint32(buf[:4])
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l.Body = r
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return
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}
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// SerializeLiteral serializes a literal data packet to w and returns a
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// WriteCloser to which the data itself can be written and which MUST be closed
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// on completion. The fileName is truncated to 255 bytes.
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func SerializeLiteral(w io.WriteCloser, isBinary bool, fileName string, time uint32) (plaintext io.WriteCloser, err error) {
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var buf [4]byte
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buf[0] = 't'
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if isBinary {
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buf[0] = 'b'
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}
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if len(fileName) > 255 {
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fileName = fileName[:255]
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}
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buf[1] = byte(len(fileName))
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inner, err := serializeStreamHeader(w, packetTypeLiteralData)
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if err != nil {
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return
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}
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_, err = inner.Write(buf[:2])
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if err != nil {
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return
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}
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_, err = inner.Write([]byte(fileName))
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if err != nil {
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return
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}
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binary.BigEndian.PutUint32(buf[:], time)
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_, err = inner.Write(buf[:])
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if err != nil {
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return
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}
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plaintext = inner
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return
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}
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