From 030201bf449bfd2056206c2ba2bbb054b9ae7e78 Mon Sep 17 00:00:00 2001 From: Michael Nolan Date: Sun, 10 Sep 2023 15:01:54 -0500 Subject: [PATCH] Initial commit --- .gitignore | 398 +++++++++++ LICENSE | 619 ++++++++++++++++++ OverlayTest/.vscode/launch.json | 24 + OverlayTest/.vscode/tasks.json | 41 ++ OverlayTest/OverlayTest.csproj | 19 + OverlayTest/Program.cs | 133 ++++ OverlayTest/lower/dir/file.txt | 1 + OverlayTest/lower/jeff.txt | 1 + OverlayTest/upper/dir/jim.txt | 1 + OverlayTest/upper/jeff.txt | 1 + OverlayTest/upper/joel.txt | 1 + README.md | 1 + Tesses.VirtualFilesystem.Overlay/Class1.cs | 527 +++++++++++++++ .../DoubleWatcher.cs | 95 +++ .../Tesses.VirtualFilesystem.Overlay.csproj | 28 + Tesses.YouTubeDownloader.VFS/Class1.cs | 100 +++ .../Tesses.YouTubeDownloader.VFS.csproj | 28 + 17 files changed, 2018 insertions(+) create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 OverlayTest/.vscode/launch.json create mode 100644 OverlayTest/.vscode/tasks.json create mode 100644 OverlayTest/OverlayTest.csproj create mode 100644 OverlayTest/Program.cs create mode 100644 OverlayTest/lower/dir/file.txt create mode 100644 OverlayTest/lower/jeff.txt create mode 100644 OverlayTest/upper/dir/jim.txt create mode 100644 OverlayTest/upper/jeff.txt create mode 100644 OverlayTest/upper/joel.txt create mode 100644 README.md create mode 100644 Tesses.VirtualFilesystem.Overlay/Class1.cs create mode 100644 Tesses.VirtualFilesystem.Overlay/DoubleWatcher.cs create mode 100644 Tesses.VirtualFilesystem.Overlay/Tesses.VirtualFilesystem.Overlay.csproj create mode 100644 Tesses.YouTubeDownloader.VFS/Class1.cs create mode 100644 Tesses.YouTubeDownloader.VFS/Tesses.YouTubeDownloader.VFS.csproj diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..8a30d25 --- /dev/null +++ b/.gitignore @@ -0,0 +1,398 @@ +## Ignore Visual Studio temporary files, build results, and +## files generated by popular Visual Studio add-ons. +## +## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore + +# User-specific files +*.rsuser +*.suo +*.user +*.userosscache +*.sln.docstates + +# User-specific files (MonoDevelop/Xamarin Studio) +*.userprefs + +# Mono auto generated files +mono_crash.* + +# Build results +[Dd]ebug/ +[Dd]ebugPublic/ +[Rr]elease/ +[Rr]eleases/ +x64/ +x86/ +[Ww][Ii][Nn]32/ +[Aa][Rr][Mm]/ +[Aa][Rr][Mm]64/ +bld/ +[Bb]in/ +[Oo]bj/ +[Ll]og/ +[Ll]ogs/ + +# Visual Studio 2015/2017 cache/options directory +.vs/ +# Uncomment if you have tasks that create the project's static files in wwwroot +#wwwroot/ + +# Visual Studio 2017 auto generated files +Generated\ Files/ + +# MSTest test Results +[Tt]est[Rr]esult*/ +[Bb]uild[Ll]og.* + +# NUnit +*.VisualState.xml +TestResult.xml +nunit-*.xml + +# Build Results of an ATL Project +[Dd]ebugPS/ +[Rr]eleasePS/ +dlldata.c + +# Benchmark Results +BenchmarkDotNet.Artifacts/ + +# .NET Core +project.lock.json +project.fragment.lock.json +artifacts/ + +# ASP.NET Scaffolding +ScaffoldingReadMe.txt + +# StyleCop +StyleCopReport.xml + +# Files built by Visual Studio +*_i.c +*_p.c +*_h.h +*.ilk +*.meta +*.obj +*.iobj +*.pch +*.pdb +*.ipdb +*.pgc +*.pgd +*.rsp +*.sbr +*.tlb +*.tli +*.tlh +*.tmp +*.tmp_proj +*_wpftmp.csproj +*.log +*.tlog +*.vspscc +*.vssscc +.builds +*.pidb +*.svclog +*.scc + +# Chutzpah Test files +_Chutzpah* + +# Visual C++ cache files +ipch/ +*.aps +*.ncb +*.opendb +*.opensdf +*.sdf +*.cachefile +*.VC.db +*.VC.VC.opendb + +# Visual Studio profiler +*.psess +*.vsp +*.vspx +*.sap + +# Visual Studio Trace Files +*.e2e + +# TFS 2012 Local Workspace +$tf/ + +# Guidance Automation Toolkit +*.gpState + +# ReSharper is a .NET coding add-in +_ReSharper*/ +*.[Rr]e[Ss]harper +*.DotSettings.user + +# TeamCity is a build add-in +_TeamCity* + +# DotCover is a Code Coverage Tool +*.dotCover + +# AxoCover is a Code Coverage Tool +.axoCover/* +!.axoCover/settings.json + +# Coverlet is a free, cross platform Code Coverage Tool +coverage*.json +coverage*.xml +coverage*.info + +# Visual Studio code coverage results +*.coverage +*.coveragexml + +# NCrunch +_NCrunch_* +.*crunch*.local.xml +nCrunchTemp_* + +# MightyMoose +*.mm.* +AutoTest.Net/ + +# Web workbench (sass) +.sass-cache/ + +# Installshield output folder +[Ee]xpress/ + +# DocProject is a documentation generator add-in +DocProject/buildhelp/ +DocProject/Help/*.HxT +DocProject/Help/*.HxC +DocProject/Help/*.hhc +DocProject/Help/*.hhk +DocProject/Help/*.hhp +DocProject/Help/Html2 +DocProject/Help/html + +# Click-Once directory +publish/ + +# Publish Web Output +*.[Pp]ublish.xml +*.azurePubxml +# Note: Comment the next line if you want to checkin your web deploy settings, +# but database connection strings (with potential passwords) will be unencrypted +*.pubxml +*.publishproj + +# Microsoft Azure Web App publish settings. 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Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. diff --git a/OverlayTest/.vscode/launch.json b/OverlayTest/.vscode/launch.json new file mode 100644 index 0000000..2ca1bb5 --- /dev/null +++ b/OverlayTest/.vscode/launch.json @@ -0,0 +1,24 @@ +{ + // Use IntelliSense to learn about possible attributes. + // Hover to view descriptions of existing attributes. + // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387 + "version": "0.2.0", + "configurations": [ + { + "name": ".NET Core Launch (console)", + "type": "coreclr", + "request": "launch", + "preLaunchTask": "build", + "program": "${workspaceFolder}/bin/Debug/net7.0/OverlayTest.dll", + "args": [], + "cwd": "${workspaceFolder}", + "console": "internalConsole", + "stopAtEntry": false + }, + { + "name": ".NET Core Attach", + "type": "coreclr", + "request": "attach" + } + ] +} \ No newline at end of file diff --git a/OverlayTest/.vscode/tasks.json b/OverlayTest/.vscode/tasks.json new file mode 100644 index 0000000..4359080 --- /dev/null +++ b/OverlayTest/.vscode/tasks.json @@ -0,0 +1,41 @@ +{ + "version": "2.0.0", + "tasks": [ + { + "label": "build", + "command": "dotnet", + "type": "process", + "args": [ + "build", + "${workspaceFolder}/OverlayTest.csproj", + "/property:GenerateFullPaths=true", + "/consoleloggerparameters:NoSummary" + ], + "problemMatcher": "$msCompile" + }, + { + "label": "publish", + "command": "dotnet", + "type": "process", + "args": [ + "publish", + "${workspaceFolder}/OverlayTest.csproj", + "/property:GenerateFullPaths=true", + "/consoleloggerparameters:NoSummary" + ], + "problemMatcher": "$msCompile" + }, + { + "label": "watch", + "command": "dotnet", + "type": "process", + "args": [ + "watch", + "run", + "--project", + "${workspaceFolder}/OverlayTest.csproj" + ], + "problemMatcher": "$msCompile" + } + ] +} \ No newline at end of file diff --git a/OverlayTest/OverlayTest.csproj b/OverlayTest/OverlayTest.csproj new file mode 100644 index 0000000..bc0e013 --- /dev/null +++ b/OverlayTest/OverlayTest.csproj @@ -0,0 +1,19 @@ + + + + Exe + net7.0 + enable + enable + + + + + + + + + + + + diff --git a/OverlayTest/Program.cs b/OverlayTest/Program.cs new file mode 100644 index 0000000..904f409 --- /dev/null +++ b/OverlayTest/Program.cs @@ -0,0 +1,133 @@ +using Tesses.VirtualFilesystem; +using Tesses.VirtualFilesystem.Extensions; +using Tesses.VirtualFilesystem.Filesystems; +using System.Text; + +LocalFileSystem fs = new LocalFileSystem(); + +OverlayFilesystem overlay = new OverlayFilesystem(fs.GetSubdirFilesystem(Special.CurDir / "lower"),fs.GetSubdirFilesystem(Special.CurDir / "upper")); + +UnixPath path = Special.Root; +int hasGone=0; +Func Prompt = ()=>{ + Console.Write(path.ToString()); + Console.Write(": "); + + return Console.ReadLine(); + +}; + +Func ParseArgs = (argStr)=>{ + List args = new List(); + StringBuilder b= new StringBuilder(); + bool isString=false; + for(int i = 0;i0) + { + args.Add(b.ToString()); + b.Clear(); + } + }else + { + b.Append(argStr[i]); + } + } + } + } + if(b.Length >0) + { + args.Add(b.ToString()); + b.Clear(); + } + return args.ToArray(); +}; + +var read = Prompt(); +while(read != null) +{ + string[] _args = ParseArgs(read); + switch(_args[0]) + { + case "exit": + Environment.Exit(0); + break; + case "ls": + + await foreach(var files in overlay.EnumerateFileSystemEntriesAsync(_args.Length > 1 ? _args[1] : path)) + { + Console.WriteLine(files.Name); + } + break; + case "cat": + if(_args.Length > 1) + { + Console.Write(await overlay.ReadAllTextAsync(_args[1])); + } + break; + case "cd": + if(_args.Length > 1) + path = _args[1]; + break; + case "mkdir": + if(_args.Length > 1) + { + + await overlay.CreateDirectoryAsync(path / _args[1]); + } + break; + case "touch": + if(_args.Length > 1) + { + UnixPath p = path / _args[1]; + + + if(!await overlay.FileExistsAsync(p) && !await overlay.DirectoryExistsAsync(p) && !await overlay.SymlinkExistsAsync(p)) + { + await overlay.WriteAllTextAsync(p,""); + } + await overlay.SetLastWriteTimeAsync(p,DateTime.Now); + } + break; + case "append": + { + UnixPath p = path / _args[1]; + using(var srcF = await overlay.OpenAsync(p,FileMode.Append,FileAccess.Write,FileShare.Read)) + { + using(var sw = new StreamWriter(srcF)) + { + sw.WriteLine(_args[2]); + } + } + } + break; + + } + + read = Prompt(); +} \ No newline at end of file diff --git a/OverlayTest/lower/dir/file.txt b/OverlayTest/lower/dir/file.txt new file mode 100644 index 0000000..cc3d32d --- /dev/null +++ b/OverlayTest/lower/dir/file.txt @@ -0,0 +1 @@ +Jordan diff --git a/OverlayTest/lower/jeff.txt b/OverlayTest/lower/jeff.txt new file mode 100644 index 0000000..2ab572d --- /dev/null +++ b/OverlayTest/lower/jeff.txt @@ -0,0 +1 @@ +Joel diff --git a/OverlayTest/upper/dir/jim.txt b/OverlayTest/upper/dir/jim.txt new file mode 100644 index 0000000..d18fa3a --- /dev/null +++ b/OverlayTest/upper/dir/jim.txt @@ -0,0 +1 @@ +FER diff --git a/OverlayTest/upper/jeff.txt b/OverlayTest/upper/jeff.txt new file mode 100644 index 0000000..f538bfa --- /dev/null +++ b/OverlayTest/upper/jeff.txt @@ -0,0 +1 @@ +Arnold diff --git a/OverlayTest/upper/joel.txt b/OverlayTest/upper/joel.txt new file mode 100644 index 0000000..90a0805 --- /dev/null +++ b/OverlayTest/upper/joel.txt @@ -0,0 +1 @@ +Jimmy \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..d784b7e --- /dev/null +++ b/README.md @@ -0,0 +1 @@ +# TODO Write this README diff --git a/Tesses.VirtualFilesystem.Overlay/Class1.cs b/Tesses.VirtualFilesystem.Overlay/Class1.cs new file mode 100644 index 0000000..33e71b8 --- /dev/null +++ b/Tesses.VirtualFilesystem.Overlay/Class1.cs @@ -0,0 +1,527 @@ +using System; +using System.Collections.Generic; +using System.IO; +using System.Runtime.CompilerServices; +using System.Threading; +using System.Threading.Tasks; + +namespace Tesses.VirtualFilesystem.Filesystems +{ + public class OverlayFilesystem : AsyncFileSystem + { + IVirtualFilesystem lower; + IVirtualFilesystem upper; + public OverlayFilesystem(IVirtualFilesystem lower,IVirtualFilesystem upper) + { + this.lower = lower; + this.upper = upper; + } + public override async Task CreateDirectoryAsync(UnixPath directory, CancellationToken token = default) + { + await upper.CreateDirectoryAsync(directory,token); + } + + public override async Task DeleteDirectoryAsync(UnixPath path, CancellationToken token = default) + { + if(await upper.DirectoryExistsAsync(path,token)) + await upper.DeleteDirectoryAsync(path,token); + } + + public override async Task DeleteFileAsync(UnixPath path, CancellationToken token = default) + { + if(await upper.FileExistsAsync(path,token)) + await upper.DeleteFileAsync(path,token); + } + + public override async Task DirectoryExistsAsync(UnixPath path, CancellationToken token = default) + { + return await lower.DirectoryExistsAsync(path,token) || await upper.DirectoryExistsAsync(path,token); + } + public override async Task SymlinkExistsAsync(UnixPath file, CancellationToken token = default) + { + return await SymlinkExists2Async(lower,file,token) || await SymlinkExists2Async(upper,file,token); + } + public override bool CanHandleSymlinks(UnixPath path) + { + if(upper.FileExists(path) || upper.DirectoryExists(path) || (upper.CanHandleSymlinks(path) && upper.SymlinkExists(path))) + { + return upper.CanHandleSymlinks(path); + } + return lower.CanHandleSymlinks(path); + } + private async Task SymlinkExists2Async(IVirtualFilesystem fs,UnixPath p,CancellationToken token=default) + { + return fs.CanHandleSymlinks(p) && await fs.SymlinkExistsAsync(p,token); + } + public override async Task CreateSymlinkAsync(UnixPath src, UnixPath dest, CancellationToken token = default) + { + if(upper.CanHandleSymlinks(dest)) + { + await upper.CreateSymlinkAsync(src,dest,token); + } + } + public override async Task CreateHardlinkAsync(UnixPath src,UnixPath dest,CancellationToken token=default) + { + if(await upper.FileExistsAsync(src,token)) + { + await upper.CreateHardlinkAsync(src,dest,token); + } + else + { + + + if(await upper.FileExistsAsync(dest,token) || !await lower.FileExistsAsync(src,token)) return; + if(dest.ParentIsRoot) + { + await upper.CreateDirectoryAsync(dest.Parent); + } + using(var srcS = await lower.OpenAsync(src,FileMode.Open,FileAccess.Read,FileShare.Read)) + { + using(var destS = await upper.OpenAsync(dest,FileMode.Create,FileAccess.Write,FileShare.Read)) + { + await srcS.CopyToAsync(destS); + } + } + } + } + public override async Task SetAttributesAsync(UnixPath path, FileAttributes attributes, CancellationToken token = default) + { + if(await upper.FileExistsAsync(path,token) || await upper.DirectoryExistsAsync(path,token) || await SymlinkExists2Async(upper,path,token)) + { + await upper.SetAttributesAsync(path, attributes, token); + } + else + { + await lower.SetAttributesAsync(path, attributes,token); + } + } + public override bool CanWatch(UnixPath path) + { + if(upper.DirectoryExists(path) && lower.DirectoryExists(path)) + { + return upper.CanWatch(path) || lower.CanWatch(path); + } + else if(upper.DirectoryExists(path)) + { + return upper.CanWatch(path); + } + else if(lower.DirectoryExists(path)) + { + return lower.CanWatch(path); + } + else + { + return false; + } + } + public override IVirtualWatcher WatchDirectory(UnixPath dir) + { + if(upper.DirectoryExists(dir) && lower.DirectoryExists(dir)) + { + return new DoubleWatcher(lower.WatchDirectory(dir),upper.WatchDirectory(dir)); + } + else if(upper.DirectoryExists(dir)) + { + return upper.WatchDirectory(dir); + } + else if(lower.DirectoryExists(dir)) + { + return lower.WatchDirectory(dir); + } + else + { + return null; + } + } + public override async Task ReadLinkAsync(UnixPath file, CancellationToken token = default) + { + if(await SymlinkExists2Async(upper,file,token)) + { + return await upper.ReadLinkAsync(file,token); + } + return await lower.ReadLinkAsync(file,token); + } + public override async IAsyncEnumerable EnumerateFileSystemEntriesAsync(UnixPath path, [EnumeratorCancellation] CancellationToken token = default) + { + List entries = new List(); + if(await lower.DirectoryExistsAsync(path,token)) + await foreach(var item in lower.EnumerateFileSystemEntriesAsync(path,token)) + { + entries.Add(item); + yield return item; + } + if(await upper.DirectoryExistsAsync(path,token)) + await foreach(var item in upper.EnumerateFileSystemEntriesAsync(path,token)) + { + bool canYield=true; + foreach(var entry in entries) + { + if(entry.MyPathEquals(item)){canYield=false; break;}; + } + if(canYield) yield return item; + } + } + + public override async Task FileExistsAsync(UnixPath path, CancellationToken token = default) + { + return await lower.FileExistsAsync(path,token) || await upper.FileExistsAsync(path,token); + + } + + public override async Task GetCreationTimeAsync(UnixPath path, CancellationToken token = default) + { + if(await upper.FileExistsAsync(path,token) || await upper.DirectoryExistsAsync(path,token) || await SymlinkExists2Async(upper,path,token)) + { + return await upper.GetCreationTimeAsync(path,token); + } + return await lower.GetCreationTimeAsync(path,token); + } + + public override async Task GetLastAccessTimeAsync(UnixPath path, CancellationToken token = default) + { + if(await upper.FileExistsAsync(path,token) || await upper.DirectoryExistsAsync(path,token) || await SymlinkExists2Async(upper,path,token)) + { + return await upper.GetLastAccessTimeAsync(path,token); + } + return await lower.GetLastAccessTimeAsync(path,token); + } + + public override async Task GetLastWriteTimeAsync(UnixPath path, CancellationToken token = default) + { + + if(await upper.FileExistsAsync(path,token) || await upper.DirectoryExistsAsync(path,token) || await SymlinkExists2Async(upper,path,token)) + { + return await upper.GetLastWriteTimeAsync(path,token); + } + return await lower.GetLastWriteTimeAsync(path,token); + } + + public override async Task MoveDirectoryAsync(UnixPath src, UnixPath dest) + { + if(!dest.IsRoot) + { + await upper.CreateDirectoryAsync(dest); + } + await foreach(var dir in this.EnumerateDirectoriesAsync(src)) + { + await MoveDirectoryAsync(dir,dest / dir.Name); + } + await foreach(var file in this.EnumerateFilesAsync(src)) + { + await MoveFileAsync(file,dest / file.Name); + } + if(await upper.DirectoryExistsAsync(src)) + { + await upper.DeleteDirectoryAsync(src); + } + } + + public override async Task MoveFileAsync(UnixPath src, UnixPath dest) + { + if(!dest.ParentIsRoot) + { + await upper.CreateDirectoryAsync(dest.Parent); + } + if(await upper.FileExistsAsync(src)) + { + await upper.MoveFileAsync(src,dest); + } + else + { + using(var srcS = await lower.OpenAsync(src,FileMode.Open,FileAccess.Read,FileShare.Read)) + { + using(var destS = await upper.OpenAsync(dest,FileMode.Create,FileAccess.ReadWrite,FileShare.Read)) + { + await srcS.CopyToAsync(destS); + } + } + } + } + + public override async Task OpenAsync(UnixPath path, FileMode mode, FileAccess access, FileShare share, CancellationToken token = default) + { + if(await upper.FileExistsAsync(path,token)) + { + return await upper.OpenAsync(path,mode,access,share,token); + } + if(await lower.FileExistsAsync(path,token)) + { + if(access != FileAccess.Read && mode != FileMode.CreateNew && mode != FileMode.Truncate && mode != FileMode.Create) + { + var strm = await lower.OpenAsync(path,mode,access,share,token); + return new CowStream(strm,path,lower,upper,mode,access,share); + } + return await lower.OpenAsync(path,FileMode.Open,FileAccess.Read,FileShare.Read); + } + return await upper.OpenAsync(path,mode,access,share,token); + } + + public override async Task SetCreationTimeAsync(UnixPath path, DateTime time, CancellationToken token = default) + { + if(await upper.FileExistsAsync(path,token) || await upper.DirectoryExistsAsync(path) || await SymlinkExists2Async(upper,path,token)) + { + await upper.SetCreationTimeAsync(path,time,token); + } + else if(await lower.FileExistsAsync(path,token) || await lower.DirectoryExistsAsync(path) || await SymlinkExists2Async(lower,path,token)) + { + if(await lower.FileExistsAsync(path,token)) + { + if(!path.ParentIsRoot) + await upper.CreateDirectoryAsync(path.Parent); + using(var src = await lower.OpenAsync(path,FileMode.Open,FileAccess.Read,FileShare.Read,token)) + { + using(var dest = await upper.OpenAsync(path,FileMode.Create,FileAccess.Write,FileShare.Read)) + { + await src.CopyToAsync(dest); + } + } + await upper.SetCreationTimeAsync(path,time,token); + } + else if(await lower.DirectoryExistsAsync(path,token)) + { + await upper.CreateDirectoryAsync(path,token); + await upper.SetCreationTimeAsync(path,time,token); + } + else if(await SymlinkExists2Async(lower,path,token)) + { + if(upper.CanHandleSymlinks(path)) + { + if(!path.ParentIsRoot) + await upper.CreateDirectoryAsync(path.Parent); + + await upper.CreateSymlinkAsync(await lower.ReadLinkAsync(path,token),path,token); + await upper.SetCreationTimeAsync(path,time,token); + } + } + } + else + { + await upper.SetCreationTimeAsync(path,time,token); + } + } + + public override async Task SetLastAccessTimeAsync(UnixPath path, DateTime time, CancellationToken token = default) + { + if(await upper.FileExistsAsync(path,token) || await upper.DirectoryExistsAsync(path) || await SymlinkExists2Async(upper,path,token)) + { + await upper.SetLastAccessTimeAsync(path,time,token); + } + else if(await lower.FileExistsAsync(path,token) || await lower.DirectoryExistsAsync(path) || await SymlinkExists2Async(lower,path,token)) + { + if(await lower.FileExistsAsync(path,token)) + { + if(!path.ParentIsRoot) + await upper.CreateDirectoryAsync(path.Parent); + using(var src = await lower.OpenAsync(path,FileMode.Open,FileAccess.Read,FileShare.Read,token)) + { + using(var dest = await upper.OpenAsync(path,FileMode.Create,FileAccess.Write,FileShare.Read)) + { + await src.CopyToAsync(dest); + } + } + await upper.SetLastAccessTimeAsync(path,time,token); + } + else if(await lower.DirectoryExistsAsync(path,token)) + { + await upper.CreateDirectoryAsync(path,token); + await upper.SetLastAccessTimeAsync(path,time,token); + } + else if(await SymlinkExists2Async(lower,path,token)) + { + if(upper.CanHandleSymlinks(path)) + { + if(!path.ParentIsRoot) + await upper.CreateDirectoryAsync(path.Parent); + + await upper.CreateSymlinkAsync(await lower.ReadLinkAsync(path,token),path,token); + await upper.SetLastAccessTimeAsync(path,time,token); + } + } + } + else + { + await upper.SetLastAccessTimeAsync(path,time,token); + + } + } + + public override async Task SetLastWriteTimeAsync(UnixPath path, DateTime time, CancellationToken token = default) + { + if(await upper.FileExistsAsync(path,token) || await upper.DirectoryExistsAsync(path) || await SymlinkExists2Async(upper,path,token)) + { + await upper.SetLastWriteTimeAsync(path,time,token); + } + else if(await lower.FileExistsAsync(path,token) || await lower.DirectoryExistsAsync(path,token) || await SymlinkExists2Async(lower,path,token)) + { + if(await lower.FileExistsAsync(path,token)) + { + if(!path.ParentIsRoot) + await upper.CreateDirectoryAsync(path.Parent); + using(var src = await lower.OpenAsync(path,FileMode.Open,FileAccess.Read,FileShare.Read,token)) + { + using(var dest = await upper.OpenAsync(path,FileMode.Create,FileAccess.Write,FileShare.Read)) + { + await src.CopyToAsync(dest); + } + } + await upper.SetLastWriteTimeAsync(path,time,token); + } + else if(await lower.DirectoryExistsAsync(path,token)) + { + await upper.CreateDirectoryAsync(path,token); + await upper.SetLastWriteTimeAsync(path,time,token); + } + else if(await SymlinkExists2Async(lower,path,token)) + { + if(upper.CanHandleSymlinks(path)) + { + if(!path.ParentIsRoot) + await upper.CreateDirectoryAsync(path.Parent); + + await upper.CreateSymlinkAsync(await lower.ReadLinkAsync(path,token),path,token); + await upper.SetLastWriteTimeAsync(path,time,token); + } + } + }else + { + await upper.SetLastWriteTimeAsync(path,time,token); + } + } + + private class CowStream : Stream + { + private FileMode mode; + private FileAccess access; + private FileShare share; + private Stream strm; + private UnixPath path; + + private IVirtualFilesystem upper; + + private IVirtualFilesystem lower; + + private bool inLower=true; + public CowStream(Stream strm, UnixPath path,IVirtualFilesystem lower, IVirtualFilesystem upper,FileMode mode,FileAccess access,FileShare share) + { + this.lower=lower; + this.strm = strm; + this.path = path; + this.upper = upper; + this.mode = mode; + this.access = access; + this.share = share; + } + + public override bool CanRead => strm.CanRead; + public override bool CanSeek => strm.CanSeek; + + public override bool CanWrite => strm.CanWrite; + + public override long Length => strm.Length; + + public override long Position { get => strm.Position; set => strm.Position = value;} + + public override void Flush() + { + CowIt(); + strm.Flush(); + } + + public override int Read(byte[] buffer, int offset, int count) + { + return strm.Read(buffer,offset,count); + } + + public override long Seek(long offset, SeekOrigin origin) + { + return strm.Seek(offset,origin); + } + + public override void SetLength(long value) + { + CowIt(); + strm.SetLength(value); + } + public override async Task ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken) + { + return await strm.ReadAsync(buffer, offset,count); + //return base.ReadAsync(buffer, offset, count, cancellationToken); + } + public override int ReadByte() + { + return strm.ReadByte(); + } + public override void WriteByte(byte value) + { + CowIt(); + strm.WriteByte(value); + } + + public override void Write(byte[] buffer, int offset, int count) + { + CowIt(); + strm.Write(buffer,offset,count); + } + public override async Task FlushAsync(CancellationToken cancellationToken) + { + await CowItAsync(cancellationToken); + + await strm.FlushAsync(cancellationToken); + } + public override async Task WriteAsync(byte[] buffer, int offset, int count,CancellationToken token) + { + await CowItAsync(token); + await strm.WriteAsync(buffer,offset,count,token); + } + public override void Close() + { + strm.Close(); + } + + private async Task CowItAsync(CancellationToken token) + { + if(inLower) + { + var pos = strm.Position; + strm.Dispose(); + + using(var srcStrm = await lower.OpenAsync(path,FileMode.Open,FileAccess.Read,FileShare.Read,token)) + { + if(!path.ParentIsRoot) + await upper.CreateDirectoryAsync(path.Parent); + using(var destStrm = await upper.OpenAsync(path,FileMode.Create,FileAccess.Write,FileShare.Write,token)) + + await srcStrm.CopyToAsync(destStrm,4096,token); + + + } + strm =await upper.OpenAsync(path,mode,access,share,token); + strm.Position = pos; + inLower=false; + } + } + private void CowIt() + { + if(inLower) + { + var pos = strm.Position; + strm.Dispose(); + + using(var srcStrm = lower.Open(path,FileMode.Open,FileAccess.Read,FileShare.Read)) + { + if(!path.ParentIsRoot) + upper.CreateDirectory(path.Parent); + using(var destStrm = upper.Open(path,FileMode.Create,FileAccess.Write,FileShare.Write)) + + srcStrm.CopyTo(destStrm); + + + } + strm =upper.Open(path,mode,access,share); + strm.Position = pos; + inLower=false; + } + } + } + } +} diff --git a/Tesses.VirtualFilesystem.Overlay/DoubleWatcher.cs b/Tesses.VirtualFilesystem.Overlay/DoubleWatcher.cs new file mode 100644 index 0000000..81ffd1b --- /dev/null +++ b/Tesses.VirtualFilesystem.Overlay/DoubleWatcher.cs @@ -0,0 +1,95 @@ +using System; +using System.IO; + +namespace Tesses.VirtualFilesystem.Filesystems +{ + internal class DoubleWatcher : IVirtualWatcher + { + public DoubleWatcher(IVirtualWatcher left,IVirtualWatcher right) + { + Left = left; + Right = right; + } + public int InternalBufferSize { get => Left.InternalBufferSize; set { + Left.InternalBufferSize = value; + Right.InternalBufferSize=value; + } } + public NotifyFilters NotifyFilter { + get => Left.NotifyFilter; + set{ + Left.NotifyFilter=value; + Right.NotifyFilter=value; + } + } + public bool EnableRaisingEvents { get => Left.EnableRaisingEvents; set { + Left.EnableRaisingEvents=value; Right.EnableRaisingEvents=value; + } } + public string Filter { get => Left.Filter; set { + Left.Filter=value; + Right.Filter = value; + + }} + public bool IncludeSubdirectories { get => Left.IncludeSubdirectories; set { + Left.IncludeSubdirectories=value; + Right.IncludeSubdirectories=value; + }} + public IVirtualWatcher Left { get; } + public IVirtualWatcher Right { get; } + + public event EventHandler Changed + { + add { + Left.Changed+=value; + Right.Changed+=value; + } + remove { + Left.Changed-=value; + Right.Changed-=value; + } + } + public event EventHandler Created + { + add{ + Left.Created+=value; + Right.Created+=value; + } + remove{ + Left.Created -= value; + Right.Created-=value; + } + } + public event EventHandler Deleted + { + add{ + Left.Deleted+=value; + Right.Deleted+=value; + } + remove{ + Left.Deleted-=value; + Right.Deleted-=value; + } + } + public event EventHandler Renamed + { + add{ + Left.Renamed +=value; + Right.Renamed+=value; + } + remove{ + Left.Renamed -=value; + Right.Renamed-=value; + } + } + public event EventHandler Error + { + add{ + Left.Error += value; + Right.Error += value; + } + remove{ + Left.Error -= value; + Right.Error -= value; + } + } + } +} \ No newline at end of file diff --git a/Tesses.VirtualFilesystem.Overlay/Tesses.VirtualFilesystem.Overlay.csproj b/Tesses.VirtualFilesystem.Overlay/Tesses.VirtualFilesystem.Overlay.csproj new file mode 100644 index 0000000..f10c4dc --- /dev/null +++ b/Tesses.VirtualFilesystem.Overlay/Tesses.VirtualFilesystem.Overlay.csproj @@ -0,0 +1,28 @@ + + + + netstandard2.0 + 8.0 + + true + Tesses.VirtualFilesystem.Overlay + Mike Nolan + Tesses + 1.0.0 + 1.0.0 + 1.0.0 + Overlay filesystem for Tesses.VirtualFilesystem + GPL-3.0-only + true + VFS, Filesystem, VirtualFilesystem + https://gitlab.tesses.net/tesses50/tesses-vfs-extras + 8.0 + + + + + + + + + diff --git a/Tesses.YouTubeDownloader.VFS/Class1.cs b/Tesses.YouTubeDownloader.VFS/Class1.cs new file mode 100644 index 0000000..7601b62 --- /dev/null +++ b/Tesses.YouTubeDownloader.VFS/Class1.cs @@ -0,0 +1,100 @@ +using System; +using System.Collections.Generic; +using System.IO; +using System.Threading.Tasks; +using Tesses.VirtualFilesystem; + +namespace Tesses.YouTubeDownloader.VFS +{ + public class TYTDVFS : TYTDStorage + { + IVirtualFilesystem fs; + public TYTDVFS(IVirtualFilesystem fs) + { + this.fs =fs; + } + + public override async Task CreateAsync(string path) + { + return await fs.OpenAsync(path,FileMode.Create,FileAccess.Write,FileShare.Inheritable); + } + + public override void CreateDirectory(string path) + { + fs.CreateDirectory(path); + } + + public override void DeleteDirectory(string dir, bool recursive = false) + { + fs.DeleteDirectory(dir, recursive); + } + + public override void DeleteFile(string file) + { + fs.DeleteFile(file); + } + + public override async Task DirectoryExistsAsync(string path) + { + return await fs.DirectoryExistsAsync(path); + } + + public override async IAsyncEnumerable EnumerateDirectoriesAsync(string path) + { + await foreach(var dir in fs.EnumerateDirectoriesAsync(path)) + { + yield return dir.Name; + } + } + + public override IAsyncEnumerable EnumerateFilesAsync(string path) + { + await foreach(var file in fs.EnumerateFilesAsync(path)) + { + yield return file.Name; + } + } + + public override async Task FileExistsAsync(string path) + { + return await fs.FileExistsAsync(path); + } + + public override void MoveDirectory(string src, string dest) + { + fs.MoveDirectory(src,dest); + } + + public override async Task OpenOrCreateAsync(string path) + { + return await fs.OpenAsync(path,FileMode.OpenOrCreate,FileAccess.ReadWrite,FileShare.Inheritable); + } + + public override async Task OpenReadAsync(string path) + { + return await fs.OpenAsync(path,FileMode.Open,FileAccess.Read,FileShare.Read); + } + + public override void RenameFile(string src, string dest) + { + fs.MoveFile(src,dest); + } + public override IEnumerable EnumerateDirectories(string path) + { + foreach(var item in fs.EnumerateDirectories(path)) yield return item.Name; + } + public override IEnumerable EnumerateFiles(string path) + { + foreach(var item in fs.EnumerateFiles(path)) yield return item.Name; + + } + public override bool DirectoryExists(string path) + { + return fs.DirectoryExists(path); + } + public new bool FileExists(string path) + { + return fs.FileExists(path); + } + } +} diff --git a/Tesses.YouTubeDownloader.VFS/Tesses.YouTubeDownloader.VFS.csproj b/Tesses.YouTubeDownloader.VFS/Tesses.YouTubeDownloader.VFS.csproj new file mode 100644 index 0000000..0396faa --- /dev/null +++ b/Tesses.YouTubeDownloader.VFS/Tesses.YouTubeDownloader.VFS.csproj @@ -0,0 +1,28 @@ + + + + netstandard2.0 + 8.0 + true + Tesses.YouTubeDownloader.VFS + Mike Nolan + Tesses + 1.0.0 + 1.0.0 + 1.0.0 + Tesses.VirtualFileSystem for TYTD + GPL-3.0-only + true + VFS, Filesystem, VirtualFilesystem + https://gitlab.tesses.net/tesses50/tesses-vfs-extras + 8.0 + + + + + + + + + +