nielash fd8faeb0e6 vfs: fix unicode normalization on macOS - fixes #7072
Before this change, the VFS layer did not properly handle unicode normalization,
which caused problems particularly for users of macOS. While attempts were made
to handle it with various `-o modules=iconv` combinations, this was an imperfect
solution, as no one combination allowed both NFC and NFD content to
simultaneously be both visible and editable via Finder.

After this change, the VFS supports `--no-unicode-normalization` (default `false`)
via the existing `--vfs-case-insensitive` logic, which is extended to apply to both
case insensitivity and unicode normalization form.

This change also adds an additional flag, `--vfs-block-norm-dupes`, to address a
probably rare but potentially possible scenario where a directory contains
multiple duplicate filenames after applying case and unicode normalization
settings. In such a scenario, this flag (disabled by default) hides the
duplicates. This comes with a performance tradeoff, as rclone will have to scan
the entire directory for duplicates when listing a directory. For this reason,
it is recommended to leave this disabled if not needed. However, macOS users may
wish to consider using it, as otherwise, if a remote directory contains both NFC
and NFD versions of the same filename, an odd situation will occur: both
versions of the file will be visible in the mount, and both will appear to be
editable, however, editing either version will actually result in only the NFD
version getting edited under the hood. `--vfs-block-norm-dupes` prevents this
confusion by detecting this scenario, hiding the duplicates, and logging an
error, similar to how this is handled in `rclone sync`.
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Rclone

Rclone ("rsync for cloud storage") is a command-line program to sync files and directories to and from different cloud storage providers.

Storage providers

  • 1Fichier 📄
  • Akamai Netstorage 📄
  • Alibaba Cloud (Aliyun) Object Storage System (OSS) 📄
  • Amazon S3 📄
  • ArvanCloud Object Storage (AOS) 📄
  • Backblaze B2 📄
  • Box 📄
  • Ceph 📄
  • China Mobile Ecloud Elastic Object Storage (EOS) 📄
  • Cloudflare R2 📄
  • Citrix ShareFile 📄
  • DigitalOcean Spaces 📄
  • Digi Storage 📄
  • Dreamhost 📄
  • Dropbox 📄
  • Enterprise File Fabric 📄
  • Fastmail Files 📄
  • FTP 📄
  • Google Cloud Storage 📄
  • Google Drive 📄
  • Google Photos 📄
  • HDFS (Hadoop Distributed Filesystem) 📄
  • HiDrive 📄
  • HTTP 📄
  • Huawei Cloud Object Storage Service(OBS) 📄
  • ImageKit 📄
  • Internet Archive 📄
  • Jottacloud 📄
  • IBM COS S3 📄
  • IONOS Cloud 📄
  • Koofr 📄
  • Leviia Object Storage 📄
  • Liara Object Storage 📄
  • Linkbox 📄
  • Linode Object Storage 📄
  • Mail.ru Cloud 📄
  • Memset Memstore 📄
  • Mega 📄
  • Memory 📄
  • Microsoft Azure Blob Storage 📄
  • Microsoft Azure Files Storage 📄
  • Microsoft OneDrive 📄
  • Minio 📄
  • Nextcloud 📄
  • OVH 📄
  • Blomp Cloud Storage 📄
  • OpenDrive 📄
  • OpenStack Swift 📄
  • Oracle Cloud Storage 📄
  • Oracle Object Storage 📄
  • ownCloud 📄
  • pCloud 📄
  • Petabox 📄
  • PikPak 📄
  • premiumize.me 📄
  • put.io 📄
  • Proton Drive 📄
  • QingStor 📄
  • Qiniu Cloud Object Storage (Kodo) 📄
  • Quatrix 📄
  • Rackspace Cloud Files 📄
  • RackCorp Object Storage 📄
  • Scaleway 📄
  • Seafile 📄
  • SeaweedFS 📄
  • SFTP 📄
  • SMB / CIFS 📄
  • StackPath 📄
  • Storj 📄
  • SugarSync 📄
  • Synology C2 Object Storage 📄
  • Tencent Cloud Object Storage (COS) 📄
  • Wasabi 📄
  • WebDAV 📄
  • Yandex Disk 📄
  • Zoho WorkDrive 📄
  • The local filesystem 📄

Please see the full list of all storage providers and their features

Virtual storage providers

These backends adapt or modify other storage providers

  • Alias: rename existing remotes 📄
  • Cache: cache remotes (DEPRECATED) 📄
  • Chunker: split large files 📄
  • Combine: combine multiple remotes into a directory tree 📄
  • Compress: compress files 📄
  • Crypt: encrypt files 📄
  • Hasher: hash files 📄
  • Union: join multiple remotes to work together 📄

Features

  • MD5/SHA-1 hashes checked at all times for file integrity
  • Timestamps preserved on files
  • Partial syncs supported on a whole file basis
  • Copy mode to just copy new/changed files
  • Sync (one way) mode to make a directory identical
  • Bisync (two way) to keep two directories in sync bidirectionally
  • Check mode to check for file hash equality
  • Can sync to and from network, e.g. two different cloud accounts
  • Optional large file chunking (Chunker)
  • Optional transparent compression (Compress)
  • Optional encryption (Crypt)
  • Optional FUSE mount (rclone mount)
  • Multi-threaded downloads to local disk
  • Can serve local or remote files over HTTP/WebDAV/FTP/SFTP/DLNA

Installation & documentation

Please see the rclone website for:

Downloads

License

This is free software under the terms of the MIT license (check the COPYING file included in this package).

Description
"rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google Cloud Storage, Azure Blob, Azure Files, Yandex Files
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