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Code Issues 975 Packages Projects Releases 25 Wiki Activity

Merge pull request #485 from adamhathcock/issue-256

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Create and using PauseEntryRebuilding for adding large numbers of ent…
This commit is contained in:
Adam Hathcock
2021-01-09 13:23:52 +00:00
committed by GitHub
parent 5879999094 669e40d53c
commit 6e42e00974
3 changed files with 39 additions and 4 deletions
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26
src/SharpCompress/Archives/AbstractWritableArchive.cs
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@@ -12,11 +12,28 @@ namespace SharpCompress.Archives
where TEntry : IArchiveEntry
where TVolume : IVolume
{
private class RebuildPauseDisposable: IDisposable
{
private readonly AbstractWritableArchive<TEntry, TVolume> archive;
public RebuildPauseDisposable(AbstractWritableArchive<TEntry, TVolume> archive)
{
this.archive = archive;
archive.pauseRebuilding = true;
}
public void Dispose()
{
archive.pauseRebuilding = false;
archive.RebuildModifiedCollection();
}
}
private readonly List<TEntry> newEntries = new List<TEntry>();
private readonly List<TEntry> removedEntries = new List<TEntry>();
private readonly List<TEntry> modifiedEntries = new List<TEntry>();
private bool hasModifications;
private bool pauseRebuilding;
internal AbstractWritableArchive(ArchiveType type)
: base(type)
@@ -45,8 +62,17 @@ namespace SharpCompress.Archives
}
}
public IDisposable PauseEntryRebuilding()
{
return new RebuildPauseDisposable(this);
}
private void RebuildModifiedCollection()
{
if (pauseRebuilding)
{
return;
}
hasModifications = true;
newEntries.RemoveAll(v => removedEntries.Contains(v));
modifiedEntries.Clear();

6
src/SharpCompress/Archives/IWritableArchive.cs
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@@ -11,5 +11,11 @@ namespace SharpCompress.Archives
IArchiveEntry AddEntry(string key, Stream source, bool closeStream, long size = 0, DateTime? modified = null);
void SaveTo(Stream stream, WriterOptions options);
/// <summary>
/// Use this to pause entry rebuilding when adding large collections of entries. Dispose when complete. A using statement is recommended.
/// </summary>
/// <returns>IDisposeable to resume entry rebuilding</returns>
IDisposable PauseEntryRebuilding();
}
}

11
src/SharpCompress/Archives/IWritableArchiveExtensions.cs
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@@ -35,11 +35,14 @@ namespace SharpCompress.Archives
this IWritableArchive writableArchive,
string filePath, string searchPattern = "*.*", SearchOption searchOption = SearchOption.AllDirectories)
{
foreach (var path in Directory.EnumerateFiles(filePath, searchPattern, searchOption))
using (writableArchive.PauseEntryRebuilding())
{
var fileInfo = new FileInfo(path);
writableArchive.AddEntry(path.Substring(filePath.Length), fileInfo.OpenRead(), true, fileInfo.Length,
fileInfo.LastWriteTime);
foreach (var path in Directory.EnumerateFiles(filePath, searchPattern, searchOption))
{
var fileInfo = new FileInfo(path);
writableArchive.AddEntry(path.Substring(filePath.Length), fileInfo.OpenRead(), true, fileInfo.Length,
fileInfo.LastWriteTime);
}
}
}
public static IArchiveEntry AddEntry(this IWritableArchive writableArchive, string key, FileInfo fileInfo)