mirror of
https://github.com/jellyfin/jellyfin.git
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248 lines
9.4 KiB
C#
248 lines
9.4 KiB
C#
using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Logging;
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using Mono.Unix.Native;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using CommonIO;
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namespace MediaBrowser.Server.Startup.Common.FFMpeg
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{
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public class FFMpegLoader
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{
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private readonly IHttpClient _httpClient;
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private readonly IApplicationPaths _appPaths;
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private readonly ILogger _logger;
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private readonly IZipClient _zipClient;
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private readonly IFileSystem _fileSystem;
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private readonly NativeEnvironment _environment;
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private readonly FFMpegInstallInfo _ffmpegInstallInfo;
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public FFMpegLoader(ILogger logger, IApplicationPaths appPaths, IHttpClient httpClient, IZipClient zipClient, IFileSystem fileSystem, NativeEnvironment environment, FFMpegInstallInfo ffmpegInstallInfo)
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{
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_logger = logger;
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_appPaths = appPaths;
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_httpClient = httpClient;
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_zipClient = zipClient;
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_fileSystem = fileSystem;
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_environment = environment;
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_ffmpegInstallInfo = ffmpegInstallInfo;
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}
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public async Task<FFMpegInfo> GetFFMpegInfo(NativeEnvironment environment, StartupOptions options, IProgress<double> progress)
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{
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var customffMpegPath = options.GetOption("-ffmpeg");
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var customffProbePath = options.GetOption("-ffprobe");
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if (!string.IsNullOrWhiteSpace(customffMpegPath) && !string.IsNullOrWhiteSpace(customffProbePath))
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{
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return new FFMpegInfo
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{
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ProbePath = customffProbePath,
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EncoderPath = customffMpegPath,
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Version = "external"
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};
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}
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var downloadInfo = _ffmpegInstallInfo;
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var version = downloadInfo.Version;
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if (string.Equals(version, "path", StringComparison.OrdinalIgnoreCase))
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{
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return new FFMpegInfo
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{
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ProbePath = downloadInfo.FFProbeFilename,
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EncoderPath = downloadInfo.FFMpegFilename,
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Version = version
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};
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}
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if (string.Equals(version, "0", StringComparison.OrdinalIgnoreCase))
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{
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return new FFMpegInfo();
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}
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var rootEncoderPath = Path.Combine(_appPaths.ProgramDataPath, "ffmpeg");
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var versionedDirectoryPath = Path.Combine(rootEncoderPath, version);
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var info = new FFMpegInfo
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{
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ProbePath = Path.Combine(versionedDirectoryPath, downloadInfo.FFProbeFilename),
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EncoderPath = Path.Combine(versionedDirectoryPath, downloadInfo.FFMpegFilename),
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Version = version
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};
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_fileSystem.CreateDirectory(versionedDirectoryPath);
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var excludeFromDeletions = new List<string> { versionedDirectoryPath };
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if (!_fileSystem.FileExists(info.ProbePath) || !_fileSystem.FileExists(info.EncoderPath))
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{
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// ffmpeg not present. See if there's an older version we can start with
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var existingVersion = GetExistingVersion(info, rootEncoderPath);
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// No older version. Need to download and block until complete
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if (existingVersion == null)
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{
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var success = await DownloadFFMpeg(downloadInfo, versionedDirectoryPath, progress).ConfigureAwait(false);
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if (!success)
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{
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return new FFMpegInfo();
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}
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}
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else
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{
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info = existingVersion;
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versionedDirectoryPath = Path.GetDirectoryName(info.EncoderPath);
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excludeFromDeletions.Add(versionedDirectoryPath);
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}
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}
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// Allow just one of these to be overridden, if desired.
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if (!string.IsNullOrWhiteSpace(customffMpegPath))
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{
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info.EncoderPath = customffMpegPath;
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}
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if (!string.IsNullOrWhiteSpace(customffProbePath))
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{
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info.EncoderPath = customffProbePath;
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}
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return info;
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}
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private FFMpegInfo GetExistingVersion(FFMpegInfo info, string rootEncoderPath)
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{
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var encoderFilename = Path.GetFileName(info.EncoderPath);
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var probeFilename = Path.GetFileName(info.ProbePath);
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foreach (var directory in Directory.EnumerateDirectories(rootEncoderPath, "*", SearchOption.TopDirectoryOnly)
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.ToList())
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{
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var allFiles = Directory.EnumerateFiles(directory, "*", SearchOption.AllDirectories).ToList();
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var encoder = allFiles.FirstOrDefault(i => string.Equals(Path.GetFileName(i), encoderFilename, StringComparison.OrdinalIgnoreCase));
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var probe = allFiles.FirstOrDefault(i => string.Equals(Path.GetFileName(i), probeFilename, StringComparison.OrdinalIgnoreCase));
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if (!string.IsNullOrWhiteSpace(encoder) &&
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!string.IsNullOrWhiteSpace(probe))
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{
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return new FFMpegInfo
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{
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EncoderPath = encoder,
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ProbePath = probe,
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Version = Path.GetFileName(Path.GetDirectoryName(probe))
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};
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}
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}
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return null;
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}
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private async Task<bool> DownloadFFMpeg(FFMpegInstallInfo downloadinfo, string directory, IProgress<double> progress)
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{
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foreach (var url in downloadinfo.DownloadUrls)
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{
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progress.Report(0);
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try
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{
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var tempFile = await _httpClient.GetTempFile(new HttpRequestOptions
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{
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Url = url,
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CancellationToken = CancellationToken.None,
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Progress = progress
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}).ConfigureAwait(false);
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ExtractFFMpeg(downloadinfo, tempFile, directory);
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return true;
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}
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catch (Exception ex)
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{
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_logger.ErrorException("Error downloading {0}", ex, url);
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}
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}
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return false;
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}
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private void ExtractFFMpeg(FFMpegInstallInfo downloadinfo, string tempFile, string targetFolder)
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{
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_logger.Info("Extracting ffmpeg from {0}", tempFile);
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var tempFolder = Path.Combine(_appPaths.TempDirectory, Guid.NewGuid().ToString());
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_fileSystem.CreateDirectory(tempFolder);
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try
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{
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ExtractArchive(downloadinfo, tempFile, tempFolder);
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var files = Directory.EnumerateFiles(tempFolder, "*", SearchOption.AllDirectories)
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.ToList();
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foreach (var file in files.Where(i =>
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{
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var filename = Path.GetFileName(i);
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return
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string.Equals(filename, downloadinfo.FFProbeFilename, StringComparison.OrdinalIgnoreCase) ||
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string.Equals(filename, downloadinfo.FFMpegFilename, StringComparison.OrdinalIgnoreCase);
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}))
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{
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var targetFile = Path.Combine(targetFolder, Path.GetFileName(file));
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_fileSystem.CopyFile(file, targetFile, true);
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SetFilePermissions(targetFile);
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}
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}
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finally
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{
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DeleteFile(tempFile);
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}
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}
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private void SetFilePermissions(string path)
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{
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// Linux: File permission to 666, and user's execute bit
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if (_environment.OperatingSystem == OperatingSystem.Bsd || _environment.OperatingSystem == OperatingSystem.Linux || _environment.OperatingSystem == OperatingSystem.Osx)
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{
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_logger.Info("Syscall.chmod {0} FilePermissions.DEFFILEMODE | FilePermissions.S_IRWXU | FilePermissions.S_IXGRP | FilePermissions.S_IXOTH", path);
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Syscall.chmod(path, FilePermissions.DEFFILEMODE | FilePermissions.S_IRWXU | FilePermissions.S_IXGRP | FilePermissions.S_IXOTH);
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}
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}
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private void ExtractArchive(FFMpegInstallInfo downloadinfo, string archivePath, string targetPath)
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{
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_logger.Info("Extracting {0} to {1}", archivePath, targetPath);
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if (string.Equals(downloadinfo.ArchiveType, "7z", StringComparison.OrdinalIgnoreCase))
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{
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_zipClient.ExtractAllFrom7z(archivePath, targetPath, true);
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}
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else if (string.Equals(downloadinfo.ArchiveType, "gz", StringComparison.OrdinalIgnoreCase))
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{
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_zipClient.ExtractAllFromTar(archivePath, targetPath, true);
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}
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}
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private void DeleteFile(string path)
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{
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try
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{
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_fileSystem.DeleteFile(path);
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}
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catch (IOException ex)
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{
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_logger.ErrorException("Error deleting temp file {0}", ex, path);
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}
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}
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}
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}
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