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Linux and OSX directory length limits

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= 2022-12-29 15:29:18 -07:00
parent 6901b8be35
commit f822a23daa
3 changed files with 67 additions and 23 deletions
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23
Source/FileManager/FileUtility.cs
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@ -6,11 +6,14 @@ using System.Text.RegularExpressions;
using Dinah.Core;
using Polly;
using Polly.Retry;
using Dinah.Core.Collections.Generic;
namespace FileManager
{
public static class FileUtility
{
/// <summary>
/// "txt" => ".txt"
/// <br />".txt" => ".txt"
@ -55,15 +58,15 @@ namespace FileManager
// ensure uniqueness and check lengths
var dir = Path.GetDirectoryName(path);
dir = dir?.Truncate(LongPath.MaxDirectoryLength) ?? string.Empty;
dir = dir?.TruncateFilename(LongPath.MaxDirectoryLength) ?? string.Empty;
var extension = Path.GetExtension(path);
var filename = Path.GetFileNameWithoutExtension(path).Truncate(LongPath.MaxFilenameLength - extension.Length);
var filename = Path.GetFileNameWithoutExtension(path).TruncateFilename(LongPath.MaxFilenameLength - extension.Length);
var fileStem = Path.Combine(dir, filename);
var fullfilename = fileStem.Truncate(LongPath.MaxPathLength - extension.Length) + extension;
var fullfilename = fileStem.TruncateFilename(LongPath.MaxPathLength - extension.Length) + extension;
fullfilename = removeInvalidWhitespace(fullfilename);
@ -71,7 +74,7 @@ namespace FileManager
while (File.Exists(fullfilename) && !returnFirstExisting)
{
var increm = $" ({++i})";
fullfilename = fileStem.Truncate(LongPath.MaxPathLength - increm.Length - extension.Length) + increm + extension;
fullfilename = fileStem.TruncateFilename(LongPath.MaxPathLength - increm.Length - extension.Length) + increm + extension;
}
return fullfilename;
@ -129,6 +132,18 @@ namespace FileManager
public static string RemoveLastCharacter(this string str) => string.IsNullOrEmpty(str) ? str : str[..^1];
public static string TruncateFilename(this string filenameStr, int limit)
{
if (LongPath.IsWindows) return filenameStr.Truncate(limit);
int index = filenameStr.Length;
while (index > 0 && System.Text.Encoding.UTF8.GetByteCount(filenameStr, 0, index) > limit)
index--;
return filenameStr[..index];
}
/// <summary>
/// Move file.
/// <br/>- Ensure valid file name path: remove invalid chars, ensure uniqueness, enforce max file length