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refactor(pep-lib): replace DotNetZip with System.IO.Compression and refactor readers

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- Remove DotNetZip package from PepLib.Core.csproj
- Update DrawingReader, NestReader, and ZipHelper to use System.IO.Compression.ZipArchive
- Simplify stream handling and improve resource disposal
- Keep behavior consistent for loop/plate detection and extraction
This commit is contained in:
AJ Isaacs
2025-10-29 11:03:56 -04:00
parent 2f56a542a8
commit 61866df17e
4 changed files with 77 additions and 140 deletions
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35
PepLib.Core/IO/DrawingReader.cs
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@@ -1,7 +1,7 @@
using Ionic.Zip;
using System;
using System.Diagnostics;
using System.IO;
using System.IO.Compression;
using System.Text.RegularExpressions;
namespace PepLib.IO
@@ -22,31 +22,16 @@ namespace PepLib.IO
public void Read(Stream stream)
{
var zipStream = new ZipInputStream(stream);
ZipEntry theEntry;
while ((theEntry = zipStream.GetNextEntry()) != null)
using (var zip = new ZipArchive(stream, ZipArchiveMode.Read, leaveOpen: true))
{
var size = 2048;
var data = new byte[size];
foreach (var entry in zip.Entries)
{
using var entryStream = entry.Open();
var memstream = new MemoryStream();
while (true)
{
size = zipStream.Read(data, 0, data.Length);
if (size > 0)
{
memstream.Write(data, 0, size);
memstream.Flush();
}
else break;
}
entryStream.CopyTo(memstream);
memstream.Seek(0, SeekOrigin.Begin);
var extension = Path.GetExtension(theEntry.FileName);
var extension = Path.GetExtension(entry.FullName);
switch (extension)
{
@@ -57,12 +42,11 @@ namespace PepLib.IO
}
if (Regex.IsMatch(extension, "loop-\\d\\d\\d"))
Drawing.Loops.Add(ReadLoop(theEntry.FileName, memstream));
Drawing.Loops.Add(ReadLoop(entry.FullName, memstream));
memstream.Close();
}
zipStream.Close();
}
Drawing.ResolveLoops();
}
@@ -111,3 +95,4 @@ namespace PepLib.IO
}
}
}

39
PepLib.Core/IO/NestReader.cs
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@@ -1,8 +1,8 @@
using Ionic.Zip;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.IO.Compression;
using System.Text;
using System.Text.RegularExpressions;
@@ -32,31 +32,16 @@ namespace PepLib.IO
const string plateExtensionPattern = "plate-\\d\\d\\d";
const string loopExtensionPattern = "loop-\\d\\d\\d";
var zipStream = new ZipInputStream(stream);
ZipEntry theEntry;
while ((theEntry = zipStream.GetNextEntry()) != null)
using (var zip = new ZipArchive(stream, ZipArchiveMode.Read, leaveOpen: true))
{
var size = 2048;
var data = new byte[size];
foreach (var entry in zip.Entries)
{
using var entryStream = entry.Open();
var memstream = new MemoryStream();
while (true)
{
size = zipStream.Read(data, 0, data.Length);
if (size > 0)
{
memstream.Write(data, 0, size);
memstream.Flush();
}
else break;
}
entryStream.CopyTo(memstream);
memstream.Seek(0, SeekOrigin.Begin);
var extension = Path.GetExtension(theEntry.FileName);
var extension = Path.GetExtension(entry.FullName);
switch (extension)
{
@@ -71,17 +56,16 @@ namespace PepLib.IO
continue;
default:
Debug.WriteLine("Unknown file: " + theEntry.FileName);
Debug.WriteLine("Unknown file: " + entry.FullName);
break;
}
if (Regex.IsMatch(extension, loopExtensionPattern))
loops.Add(theEntry.FileName, memstream);
loops.Add(entry.FullName, memstream);
else if (Regex.IsMatch(extension, plateExtensionPattern))
plates.Add(theEntry.FileName, memstream);
plates.Add(entry.FullName, memstream);
}
}
zipStream.Close();
foreach (var loop in loops)
Nest.Loops.Add(ReadLoop(loop.Key, loop.Value));
@@ -163,3 +147,4 @@ namespace PepLib.IO
}
}
}

1
PepLib.Core/PepLib.Core.csproj
View File

@@ -7,7 +7,6 @@
</PropertyGroup>
<ItemGroup>
<PackageReference Include="DotNetZip" Version="1.16.0" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.10">
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
<PrivateAssets>all</PrivateAssets>

74
PepLib.Core/ZipHelper.cs
View File

@@ -1,6 +1,6 @@
using Ionic.Zip;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Text.RegularExpressions;
namespace PepLib
@@ -17,41 +17,26 @@ namespace PepLib
/// <returns></returns>
public static int ExtractByPattern(string file, string pattern, out string[] names, out Stream[] streams)
{
var fileStream = new FileStream(file, FileMode.Open, FileAccess.Read);
var zipStream = new ZipInputStream(fileStream);
var nameList = new List<string>();
var streamList = new List<Stream>();
ZipEntry theEntry;
while ((theEntry = zipStream.GetNextEntry()) != null)
using (var fileStream = new FileStream(file, FileMode.Open, FileAccess.Read))
using (var zip = new ZipArchive(fileStream, ZipArchiveMode.Read))
{
if (!Regex.IsMatch(theEntry.FileName, pattern))
foreach (var entry in zip.Entries)
{
if (!Regex.IsMatch(entry.FullName, pattern))
continue;
nameList.Add(theEntry.FileName);
nameList.Add(entry.FullName);
var memstream = new MemoryStream();
var size = 2048;
var data = new byte[size];
while (true)
{
size = zipStream.Read(data, 0, data.Length);
if (size > 0)
{
memstream.Write(data, 0, size);
memstream.Flush();
}
else break;
}
using var entryStream = entry.Open();
entryStream.CopyTo(memstream);
memstream.Seek(0, SeekOrigin.Begin);
streamList.Add(memstream);
}
zipStream.Close();
}
names = nameList.ToArray();
streams = streamList.ToArray();
@@ -69,43 +54,25 @@ namespace PepLib
/// <returns></returns>
public static bool ExtractByExtension(string file, string extension, out string name, out Stream stream)
{
var fileStream = new FileStream(file, FileMode.Open, FileAccess.Read);
var zipStream = new ZipInputStream(fileStream);
var memstream = new MemoryStream();
ZipEntry theEntry;
while ((theEntry = zipStream.GetNextEntry()) != null)
using (var fileStream = new FileStream(file, FileMode.Open, FileAccess.Read))
using (var zip = new ZipArchive(fileStream, ZipArchiveMode.Read))
{
if (Path.GetExtension(theEntry.FileName) != extension)
foreach (var entry in zip.Entries)
{
if (Path.GetExtension(entry.FullName) != extension)
continue;
int size = 2048;
var data = new byte[size];
while (true)
{
size = zipStream.Read(data, 0, data.Length);
if (size > 0)
{
memstream.Write(data, 0, size);
memstream.Flush();
}
else break;
}
zipStream.Close();
var memstream = new MemoryStream();
using var entryStream = entry.Open();
entryStream.CopyTo(memstream);
memstream.Seek(0, SeekOrigin.Begin);
stream = memstream;
name = theEntry.FileName;
name = entry.FullName;
return true;
}
zipStream.Close();
memstream.Close();
}
stream = null;
name = null;
@@ -114,3 +81,4 @@ namespace PepLib
}
}
}