mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-13 12:09:33 +01:00
12a1f914f4
* update github.com/alecthomas/chroma v0.8.0 -> v0.8.1 * github.com/blevesearch/bleve v1.0.10 -> v1.0.12 * editorconfig-core-go v2.1.1 -> v2.3.7 * github.com/gliderlabs/ssh v0.2.2 -> v0.3.1 * migrate editorconfig.ParseBytes to Parse * github.com/shurcooL/vfsgen to 0d455de96546 * github.com/go-git/go-git/v5 v5.1.0 -> v5.2.0 * github.com/google/uuid v1.1.1 -> v1.1.2 * github.com/huandu/xstrings v1.3.0 -> v1.3.2 * github.com/klauspost/compress v1.10.11 -> v1.11.1 * github.com/markbates/goth v1.61.2 -> v1.65.0 * github.com/mattn/go-sqlite3 v1.14.0 -> v1.14.4 * github.com/mholt/archiver v3.3.0 -> v3.3.2 * github.com/microcosm-cc/bluemonday 4f7140c49acb -> v1.0.4 * github.com/minio/minio-go v7.0.4 -> v7.0.5 * github.com/olivere/elastic v7.0.9 -> v7.0.20 * github.com/urfave/cli v1.20.0 -> v1.22.4 * github.com/prometheus/client_golang v1.1.0 -> v1.8.0 * github.com/xanzy/go-gitlab v0.37.0 -> v0.38.1 * mvdan.cc/xurls v2.1.0 -> v2.2.0 Co-authored-by: Lauris BH <lauris@nix.lv>
57 lines
1.3 KiB
Go
Vendored
57 lines
1.3 KiB
Go
Vendored
package archiver
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import (
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"fmt"
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"io"
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"path/filepath"
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"github.com/pierrec/lz4/v3"
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)
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// Lz4 facilitates LZ4 compression.
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type Lz4 struct {
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CompressionLevel int
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}
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// Compress reads in, compresses it, and writes it to out.
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func (lz *Lz4) Compress(in io.Reader, out io.Writer) error {
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w := lz4.NewWriter(out)
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w.Header.CompressionLevel = lz.CompressionLevel
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defer w.Close()
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_, err := io.Copy(w, in)
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return err
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}
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// Decompress reads in, decompresses it, and writes it to out.
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func (lz *Lz4) Decompress(in io.Reader, out io.Writer) error {
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r := lz4.NewReader(in)
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_, err := io.Copy(out, r)
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return err
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}
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// CheckExt ensures the file extension matches the format.
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func (lz *Lz4) CheckExt(filename string) error {
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if filepath.Ext(filename) != ".lz4" {
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return fmt.Errorf("filename must have a .lz4 extension")
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}
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return nil
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}
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func (lz *Lz4) String() string { return "lz4" }
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// NewLz4 returns a new, default instance ready to be customized and used.
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func NewLz4() *Lz4 {
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return &Lz4{
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CompressionLevel: 9, // https://github.com/lz4/lz4/blob/1b819bfd633ae285df2dfe1b0589e1ec064f2873/lib/lz4hc.h#L48
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}
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}
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// Compile-time checks to ensure type implements desired interfaces.
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var (
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_ = Compressor(new(Lz4))
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_ = Decompressor(new(Lz4))
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)
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// DefaultLz4 is a default instance that is conveniently ready to use.
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var DefaultLz4 = NewLz4()
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