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Merge pull request #506 from V-R-Dighe/develop 

Added zstd as a compression algorithm
This commit is contained in:
Zack 2022-09-16 09:08:14 -07:00 committed by GitHub
parent 1517767129 e640e4fce0
commit 8de4508876
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3 changed files with 17 additions and 8 deletions
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2
go.mod
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@ -6,6 +6,7 @@ require (
github.com/cespare/xxhash v1.1.0
github.com/denisbrodbeck/machineid v1.0.1
github.com/kalafut/imohash v1.0.2
github.com/klauspost/compress v1.15.9
github.com/schollz/cli/v2 v2.2.1
github.com/schollz/logger v1.2.0
github.com/schollz/mnemonicode v1.0.1
@ -19,6 +20,7 @@ require (
)
require (
github.com/DataDog/zstd v1.5.2
github.com/OneOfOne/xxhash v1.2.5 // indirect
github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect

4
go.sum
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@ -1,4 +1,6 @@
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/DataDog/zstd v1.5.2 h1:vUG4lAyuPCXO0TLbXvPv7EB7cNK1QV/luu55UHLrrn8=
github.com/DataDog/zstd v1.5.2/go.mod h1:g4AWEaM3yOg3HYfnJ3YIawPnVdXJh9QME85blwSAmyw=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/OneOfOne/xxhash v1.2.5 h1:zl/OfRA6nftbBK9qTohYBJ5xvw6C/oNKizR7cZGl3cI=
github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
@ -15,6 +17,8 @@ github.com/denisbrodbeck/machineid v1.0.1/go.mod h1:dJUwb7PTidGDeYyUBmXZ2GphQBbj
github.com/k0kubun/go-ansi v0.0.0-20180517002512-3bf9e2903213/go.mod h1:vNUNkEQ1e29fT/6vq2aBdFsgNPmy8qMdSay1npru+Sw=
github.com/kalafut/imohash v1.0.2 h1:j/cUPa15YvXv7abJlM+kdJIycbBMpmO7WqhPl4YB76I=
github.com/kalafut/imohash v1.0.2/go.mod h1:PjHBF0vpo1q7zMqiTn0qwSTQU2wDn5QIe8S8sFQuZS8=
github.com/klauspost/compress v1.15.9 h1:wKRjX6JRtDdrE9qwa4b/Cip7ACOshUI4smpCQanqjSY=
github.com/klauspost/compress v1.15.9/go.mod h1:PhcZ0MbTNciWF3rruxRgKxI5NkcHHrHUDtV4Yw2GlzU=
github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=

19
src/compress/compress.go
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@ -2,9 +2,10 @@ package compress
import (
"bytes"
"compress/flate"
"io"
"github.com/klauspost/compress/zstd"
log "github.com/schollz/logger"
)
@ -30,22 +31,24 @@ func Decompress(src []byte) []byte {
return deCompressedData.Bytes()
}
// compress uses flate to compress a byte slice to a corresponding level
// compress uses zstd to compress a byte slice to a corresponding level
func compress(src []byte, dest io.Writer, level int) {
compressor, err := flate.NewWriter(dest, level)
compressor, err := zstd.NewWriter(dest, zstd.WithEncoderLevel(zstd.EncoderLevelFromZstd(level)))
if err != nil {
log.Debugf("error level data: %v", err)
return
panic(err)
}
if _, err := compressor.Write(src); err != nil {
if _, err = compressor.Write(src); err != nil {
log.Debugf("error writing data: %v", err)
}
compressor.Close()
}
// compress uses flate to decompress an io.Reader
// decompress uses zstd to decompress an io.Reader
func decompress(src io.Reader, dest io.Writer) {
decompressor := flate.NewReader(src)
decompressor, err := zstd.NewReader(src)
if err != nil {
panic(err)
}
if _, err := io.Copy(dest, decompressor); err != nil {
log.Debugf("error copying data: %v", err)
}