Hardlinks are considered duplicate.

[frenchiveruti]

Hello, I have many files duplicated as Hardlinks on my windows PC, and Czkawka considered them as duplicated even though they were already non-duplicate due to them being hardlinks.
I ran the analysis using Hash+Blake3 method, and it returned a LOT of alleged duplicated files that were all HardLinks.
¿How can I make the software ignore hardlinks?

[qarmin]

Currently ignoring hardlinks are implemented only for Unix based systems like Linux and macOS.

If anyone want to implement this feature, this is code responsible for it

czkawka/czkawka_core/src/duplicate.rs

Lines 1306 to 1324 in 2af7102

	#[cfg(target_family = "windows")]
	fn filter_hard_links(vec_file_entry: &[FileEntry]) -> Vec<FileEntry> {
	vec_file_entry.to_vec()
	}
	#[cfg(target_family = "unix")]
	fn filter_hard_links(vec_file_entry: &[FileEntry]) -> Vec<FileEntry> {
	let mut inodes: HashSet<u64> = HashSet::with_capacity(vec_file_entry.len());
	let mut identical: Vec<FileEntry> = Vec::with_capacity(vec_file_entry.len());
	for f in vec_file_entry {
	if let Ok(meta) = fs::metadata(&f.path) {
	if !inodes.insert(meta.ino()) {
	continue;
	}
	}
	identical.push(f.clone());
	}
	identical
	}

[slowthgt]

While I don't have a PR to submit (as I have 0 experience with Rust), I did reach somewhat of a solution. However, it requires the win32api, which can be used but requires the Rust for Windows dependency. The method revolves around the usage of GetFileInformationByHandle, which returns a structure named BY_HANDLE_FILE_INFORMATION and then check the nFileIndexHigh, nFileIndexLow and dwVolumeSerialNumber to see if they are the same. Hope this somewhat helps.
Reference

[ongchi]

The file index information can be obtained by nightly api os::windows::fs::MetadataExt::file_index, returns an u64, and this value is not garnered to be unique on some filesystems.

Please refer to rust-lang/rust#63010.

While I don't have a PR to submit (as I have 0 experience with Rust), I did reach somewhat of a solution. However, it requires the win32api, which can be used but requires the Rust for Windows dependency. The method revolves around the usage of GetFileInformationByHandle, which returns a structure named BY_HANDLE_FILE_INFORMATION and then check the nFileIndexHigh, nFileIndexLow and dwVolumeSerialNumber to see if they are the same. Hope this somewhat helps.

[Devocub]

This is important feature!
as easy solution you can use fsutil hardlink list "C:\123.txt"

\Program Files\456.txt
\789.txt