ec1f89217a
Full Mattermost server source with integrated Community Enterprise features. Includes vendor directory for offline/air-gapped builds. Structure: - enterprise-impl/: Enterprise feature implementations - enterprise-community/: Init files that register implementations - enterprise/: Bridge imports (community_imports.go) - vendor/: All dependencies for offline builds Build (online): go build ./cmd/mattermost Build (offline/air-gapped): go build -mod=vendor ./cmd/mattermost 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
package archives
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import (
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"bytes"
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"context"
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"io"
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"strings"
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"github.com/pierrec/lz4/v4"
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)
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func init() {
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RegisterFormat(Lz4{})
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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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func (Lz4) Extension() string { return ".lz4" }
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func (Lz4) MediaType() string { return "application/x-lz4" }
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func (lz Lz4) Match(_ context.Context, filename string, stream io.Reader) (MatchResult, error) {
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var mr MatchResult
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// match filename
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if strings.Contains(strings.ToLower(filename), lz.Extension()) {
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mr.ByName = true
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}
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// match file header
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buf, err := readAtMost(stream, len(lz4Header))
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if err != nil {
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return mr, err
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}
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mr.ByStream = bytes.Equal(buf, lz4Header)
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return mr, nil
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}
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func (lz Lz4) OpenWriter(w io.Writer) (io.WriteCloser, error) {
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lzw := lz4.NewWriter(w)
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options := []lz4.Option{
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lz4.CompressionLevelOption(lz4.CompressionLevel(lz.CompressionLevel)),
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}
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if err := lzw.Apply(options...); err != nil {
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return nil, err
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}
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return lzw, nil
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}
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func (Lz4) OpenReader(r io.Reader) (io.ReadCloser, error) {
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return io.NopCloser(lz4.NewReader(r)), nil
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}
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var lz4Header = []byte{0x04, 0x22, 0x4d, 0x18}
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