Add Option to ignore file name casing in IFileStore.fetchInfo()

[HannesWell]

Introduce a new file-system option EFS.IGNORE_NAME_CASE and add a fast-path to Win32Handler in case that option is set to not determine the file's real name on the file-system.
Additionally overwrite Win32Handler.listDirectoryAndGetFileInfos(String) to leverage that new fast-path too, similar to

• Introduce faster file refresh on Linux (x86_64 only for now) #2793

This currently is based on

• Add exists() and isDirectory() methods to IFileStore #2951

which introduces the methods IFileStore.exists() and IFileStore.isDirectory(), which make it simpler to use the new option here.

In a very simple benchmark I ran locally on Windows, basically just fetching the same file's info in a loop a million times, the new fast-path was almost twice as fast as the existing code.
Real numbers are probably different. For random, not previously fetched files, the difference might even be greater and the numbers probably also depend on the size of the parent directory (i.e. I assume the currently used method to be slower).

[eclipse-platform-bot]

This pull request changes some projects for the first time in this development cycle.
Therefore the following files need a version increment:

resources/examples/org.eclipse.ui.examples.filesystem/META-INF/MANIFEST.MF

An additional commit containing all the necessary changes was pushed to the top of this PR's branch. To obtain these changes (for example if you want to push more changes) either fetch from your fork or apply the git patch.

Git patch

From 7c3997b9ae628393d4c6fe9c9b4d73f7fcd538c0 Mon Sep 17 00:00:00 2001
From: Eclipse Platform Bot <platform-bot@eclipse.org>
Date: Sun, 20 Sep 2026 11:45:30 +0000
Subject: [PATCH] Version bump(s) for 4.42 stream


diff --git a/resources/examples/org.eclipse.ui.examples.filesystem/META-INF/MANIFEST.MF b/resources/examples/org.eclipse.ui.examples.filesystem/META-INF/MANIFEST.MF
index 325dc32f3e..b2a8ed32f2 100644
--- a/resources/examples/org.eclipse.ui.examples.filesystem/META-INF/MANIFEST.MF
+++ b/resources/examples/org.eclipse.ui.examples.filesystem/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@ Bundle-ManifestVersion: 2
 Automatic-Module-Name: org.eclipse.ui.examples.filesystem
 Bundle-Name: Efs Examples Plug-in
 Bundle-SymbolicName: org.eclipse.ui.examples.filesystem;singleton:=true
-Bundle-Version: 1.2.100.qualifier
+Bundle-Version: 1.2.200.qualifier
 Bundle-Vendor: Eclipse.org
 Require-Bundle: org.eclipse.core.filesystem,
  org.eclipse.core.resources,
-- 
2.55.0

Further information are available in Common Build Issues - Missing version increments.

[github-actions]

Test Results

    54 files  ±0      54 suites  ±0   58m 26s ⏱️ + 1m 37s
 4 823 tests ±0   4 801 ✅ ±0   22 💤 ±0  0 ❌ ±0 
12 360 runs  ±0  12 207 ✅ ±0  153 💤 ±0  0 ❌ ±0 

Results for commit 573ad04. ± Comparison against base commit a439595.

♻️ This comment has been updated with latest results.

[vogella]

I think you have a bug, missing files are reported as I/O errors. readDosFileAttributesIntoFileInfo catches FileNotFoundException, but NIO throws NoSuchFileException for a missing file.

[HannesWell]

I think you have a bug, missing files are reported as I/O errors. readDosFileAttributesIntoFileInfo catches FileNotFoundException, but NIO throws NoSuchFileException for a missing file.

Indeed. Thanks for spotting that.
Should be fixed now.

[HannesWell]

Unless there are more remarks I plan to submit this tomorrow (European) evening.