return err
		}
		defer dec.Close()
		r = dec
	case formatBZ2:
		ctx, cancel := context.WithCancel(ctx)
		defer cancel()
		r = pbzip2.NewReader(ctx, bf, pbzip2.DecompressionOptions(
			pbzip2.BZConcurrency((runtime.GOMAXPROCS(0)+1)/2),
			pbzip2.BZConcurrencyPool(bz2Limiter)))
	case formatLZ4:
		r = lz4.NewReader(bf)
	case formatUnknown:
		r = bf
	default:

Decompressing incompressible data has no significant performance impact.

Below is a list of common files and content-types which are typically not suitable for compression.

- Extensions

 | `gz`  | (GZIP)      |
 | `bz2` | (BZIP2)     |
 | `rar` | (WinRAR)    |
 | `zip` | (ZIP)       |
 | `7z`  | (7-Zip)     |
 | `xz`  | (LZMA)      |
 | `mp4` | (MP4)       |
 | `mkv` | (MKV media) |
 | `mov` | (MOV)       |

- Content-Types

  public static final MediaType ATOM_UTF_8 = createConstantUtf8(APPLICATION_TYPE, "atom+xml");
  public static final MediaType BZIP2 = createConstant(APPLICATION_TYPE, "x-bzip2");

  /**
   * Files in the <a href="https://www.dartlang.org/articles/embedding-in-html/">dart</a>
   * programming language.
   *
   * @since 19.0
   */

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package tar

import (
	"bytes"
	"compress/bzip2"
	"errors"
	"fmt"
	"hash/crc32"
	"internal/obscuretestdata"
	"io"
	"maps"
	"math"
	"os"
	"path"
	"reflect"
	"slices"
	"strconv"
	"strings"
	"testing"
	"time"
)

func TestReader(t *testing.T) {

labels.facet_filetype_txt=Text
labels.facet_filetype_rtf=Rich Text
labels.facet_filetype_chm=Compiled HTML Help
labels.facet_filetype_zip=ZIP Archive
labels.facet_filetype_7z=7z Archive
labels.facet_filetype_bz=BZIP Archive
labels.facet_filetype_bz2=BZIP2 Archive
labels.facet_filetype_tar=TAR Archive
labels.facet_filetype_rar=RAR Archive
labels.facet_filetype_3gp=3gp Video
labels.facet_filetype_3g2=3g2 Video
labels.facet_filetype_avi=AVI Video

labels.facet_filetype_txt=Text
labels.facet_filetype_rtf=Rich Text
labels.facet_filetype_chm=Compiled HTML Help
labels.facet_filetype_zip=ZIP Archive
labels.facet_filetype_7z=7z Archive
labels.facet_filetype_bz=BZIP Archive
labels.facet_filetype_bz2=BZIP2 Archive
labels.facet_filetype_tar=TAR Archive
labels.facet_filetype_rar=RAR Archive
labels.facet_filetype_3gp=3gp Video
labels.facet_filetype_3g2=3g2 Video
labels.facet_filetype_avi=AVI Video

package org.elasticsearch.gradle.internal;

import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;
import org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream;
import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;
import org.elasticsearch.gradle.internal.test.GradleIntegrationTestCase;
import org.gradle.api.GradleException;

application/e-pub+zip=epub\n\
application/x-ibooks+zip=ibooks\n\
text/plain=txt\n\
application/rtf=rtf\n\
application/vnd.ms-htmlhelp=chm\n\
application/zip=zip\n\
application/x-7z-comressed=7z\n\
application/x-bzip=bz\n\
application/x-bzip2=bz2\n\
application/x-tar=tar\n\
application/x-rar-compressed=rar\n\
video/3gp=3gp\n\
video/3g2=3g2\n\
video/x-msvideo=avi\n\
video/x-flv=flv\n\
video/mpeg=mpeg\n\
video/mp4=mp4\n\

labels.facet_filetype_txt=文字
labels.facet_filetype_rtf=富文字
labels.facet_filetype_chm=編譯的HTML幫助
labels.facet_filetype_zip=ZIP存檔
labels.facet_filetype_7z=7z存檔
labels.facet_filetype_bz=BZIP存檔
labels.facet_filetype_bz2=BZIP2存檔
labels.facet_filetype_tar=TAR存檔
labels.facet_filetype_rar=RAR存檔
labels.facet_filetype_3gp=3gp視訊
labels.facet_filetype_3g2=3g2視訊
labels.facet_filetype_avi=AVI視訊
labels.facet_filetype_flv=FLV視訊

labels.facet_filetype_rtf=Rich Text
labels.facet_filetype_chm=Gecompileerde HTML-help
labels.facet_filetype_zip=ZIP-archief
labels.facet_filetype_7z=7z-archief
labels.facet_filetype_bz=BZIP-archief
labels.facet_filetype_bz2=BZIP2-archief
labels.facet_filetype_tar=TAR-archief
labels.facet_filetype_rar=RAR-archief
labels.facet_filetype_3gp=3gp-video
labels.facet_filetype_3g2=3g2-video
labels.facet_filetype_avi=AVI-video