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Add support to compress repository with zstd.

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This commit is contained in:
Natalia Portillo
2025-07-25 17:49:36 +01:00
parent bf19439e49
commit 0bda03afee
12 changed files with 224 additions and 71 deletions
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73
RomRepoMgr.Core/Filesystem/Vfs.cs
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@@ -12,6 +12,7 @@ using RomRepoMgr.Database;
using RomRepoMgr.Database.Models;
using SharpCompress.Compressors;
using SharpCompress.Compressors.LZMA;
using ZstdSharp;
namespace RomRepoMgr.Core.Filesystem;
@@ -365,9 +366,9 @@ public class Vfs(ILoggerFactory loggerFactory) : IDisposable
internal long Open(string sha384, long fileSize)
{
var sha384Bytes = new byte[48];
byte[] sha384Bytes = new byte[48];
for(var i = 0; i < 48; i++)
for(int i = 0; i < 48; i++)
{
if(sha384[i * 2] >= 0x30 && sha384[i * 2] <= 0x39)
sha384Bytes[i] = (byte)((sha384[i * 2] - 0x30) * 0x10);
@@ -386,19 +387,47 @@ public class Vfs(ILoggerFactory loggerFactory) : IDisposable
string sha384B32 = Base32.ToBase32String(sha384Bytes);
string repoPath = Path.Combine(Settings.Settings.Current.RepositoryPath,
"files",
sha384B32[0].ToString(),
sha384B32[1].ToString(),
sha384B32[2].ToString(),
sha384B32[3].ToString(),
sha384B32[4].ToString(),
sha384B32 + ".lz");
if(!File.Exists(repoPath)) return -1;
string repoPath;
repoPath = Path.Combine(Settings.Settings.Current.RepositoryPath,
"files",
sha384B32[0].ToString(),
sha384B32[1].ToString(),
sha384B32[2].ToString(),
sha384B32[3].ToString(),
sha384B32[4].ToString(),
sha384B32 + ".lz");
long handle;
if(!File.Exists(repoPath))
{
repoPath = Path.Combine(Settings.Settings.Current.RepositoryPath,
"files",
sha384B32[0].ToString(),
sha384B32[1].ToString(),
sha384B32[2].ToString(),
sha384B32[3].ToString(),
sha384B32[4].ToString(),
sha384B32 + ".zst");
if(!File.Exists(repoPath)) return -1;
_lastHandle++;
handle = _lastHandle;
_streamsCache[handle] =
Stream.Synchronized(new ForcedSeekStream<DecompressionStream>(fileSize,
new FileStream(repoPath,
FileMode.Open,
FileAccess.Read)));
return handle;
}
_lastHandle++;
long handle = _lastHandle;
handle = _lastHandle;
_streamsCache[handle] =
Stream.Synchronized(new ForcedSeekStream<LZipStream>(fileSize,
@@ -457,9 +486,9 @@ public class Vfs(ILoggerFactory loggerFactory) : IDisposable
if(sha1 != null)
{
var sha1Bytes = new byte[20];
byte[] sha1Bytes = new byte[20];
for(var i = 0; i < 20; i++)
for(int i = 0; i < 20; i++)
{
if(sha1[i * 2] >= 0x30 && sha1[i * 2] <= 0x39)
sha1Bytes[i] = (byte)((sha1[i * 2] - 0x30) * 0x10);
@@ -490,9 +519,9 @@ public class Vfs(ILoggerFactory loggerFactory) : IDisposable
if(md5 != null)
{
var md5Bytes = new byte[16];
byte[] md5Bytes = new byte[16];
for(var i = 0; i < 16; i++)
for(int i = 0; i < 16; i++)
{
if(md5[i * 2] >= 0x30 && md5[i * 2] <= 0x39)
md5Bytes[i] = (byte)((md5[i * 2] - 0x30) * 0x10);
@@ -545,9 +574,9 @@ public class Vfs(ILoggerFactory loggerFactory) : IDisposable
if(sha256 != null)
{
var sha256Bytes = new byte[32];
byte[] sha256Bytes = new byte[32];
for(var i = 0; i < 32; i++)
for(int i = 0; i < 32; i++)
{
if(sha256[i * 2] >= 0x30 && sha256[i * 2] <= 0x39)
sha256Bytes[i] = (byte)((sha256[i * 2] - 0x30) * 0x10);
@@ -579,9 +608,9 @@ public class Vfs(ILoggerFactory loggerFactory) : IDisposable
if(sha1 != null)
{
var sha1Bytes = new byte[20];
byte[] sha1Bytes = new byte[20];
for(var i = 0; i < 20; i++)
for(int i = 0; i < 20; i++)
{
if(sha1[i * 2] >= 0x30 && sha1[i * 2] <= 0x39)
sha1Bytes[i] = (byte)((sha1[i * 2] - 0x30) * 0x10);
@@ -612,9 +641,9 @@ public class Vfs(ILoggerFactory loggerFactory) : IDisposable
if(md5 != null)
{
var md5Bytes = new byte[16];
byte[] md5Bytes = new byte[16];
for(var i = 0; i < 16; i++)
for(int i = 0; i < 16; i++)
{
if(md5[i * 2] >= 0x30 && md5[i * 2] <= 0x39)
md5Bytes[i] = (byte)((md5[i * 2] - 0x30) * 0x10);