Nick Craig-Wood 7dd42c93cf fstests: check backends return accurate object fingerprints after writes
Layers which wrap backends, such as the hasher backend and the VFS
cache, use fs.Fingerprint to detect whether an object has changed.
This only works if the object a backend hands back from a write
operation is identical to the object a fresh listing returns. If a
backend keeps the source's nanosecond precision modtime in memory
while the server stores milliseconds, or omits a hash the server
knows, every fingerprint comparison fails and cached hashes or files
are silently invalidated.

The existing tests compared modtimes within f.Precision() so they
could not detect these sub-precision divergences.

Add a checkFingerprint helper which asserts the fast and slow
fs.Fingerprint of the object returned from a write operation exactly
match those of the object read back from the remote, and wire it into
all the write paths which return or mutate an object: Put (all
variants), PutStream, large and streamed uploads, Update, SetModTime,
server side Copy and Move, and the metadata mutating Copy/Move
subtests.

Rework the ObjectOpenFingerprint test to use the same helper against
a fully read reference object, with subtests reporting which kind of
read is being checked.
2026-07-13 13:40:53 +01:00
2026-05-01 14:06:11 +01:00
2026-04-11 15:27:05 +01:00
2026-05-15 20:12:47 +02:00
2025-08-22 11:42:51 +01:00
2026-05-01 15:56:56 +01:00
2026-05-01 15:56:56 +01:00
2026-05-01 15:56:56 +01:00
2020-10-28 18:16:23 +00:00
2026-05-01 15:56:56 +01:00
2019-09-29 11:05:10 +01:00
2026-05-01 14:06:11 +01:00
2026-06-22 15:18:26 +01:00
2026-05-01 17:15:20 +01:00

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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) 📄
  • Bizfly Cloud Simple Storage 📄
  • Backblaze B2 📄
  • Box 📄
  • Ceph 📄
  • China Mobile Ecloud Elastic Object Storage (EOS) 📄
  • Citrix ShareFile 📄
  • Cloudflare R2 📄
  • Cloudinary 📄
  • Cubbit DS3 📄
  • DigitalOcean Spaces 📄
  • Digi Storage 📄
  • Dreamhost 📄
  • Drime 📄
  • Dropbox 📄
  • Enterprise File Fabric 📄
  • Exaba 📄
  • Fastly Object Storage 📄
  • Fastmail Files 📄
  • FileLu 📄
  • Filen 📄
  • Files.com 📄
  • FlashBlade 📄
  • FTP 📄
  • GoFile 📄
  • Google Cloud Storage 📄
  • Google Drive 📄
  • Google Photos 📄
  • HDFS (Hadoop Distributed Filesystem) 📄
  • Hetzner Object Storage 📄
  • Hetzner Storage Box 📄
  • HiDrive 📄
  • Hitachi Content Platform (HCP) 📄
  • HTTP 📄
  • Huawei Cloud Object Storage Service(OBS) 📄
  • Huawei Drive 📄
  • iCloud Drive 📄
  • ImageKit 📄
  • Internet Archive 📄
  • Internxt 📄
  • Jottacloud 📄
  • IBM COS S3 📄
  • Impossible Cloud 📄
  • Intercolo Object Storage 📄
  • IONOS Cloud 📄
  • Koofr 📄
  • Leviia Object Storage 📄
  • Liara Object Storage 📄
  • Linkbox 📄
  • Linode Object Storage 📄
  • Magalu Object Storage 📄
  • Mail.ru Cloud 📄
  • Memset Memstore 📄
  • MEGA 📄
  • MEGA S4 Object Storage 📄
  • Memory 📄
  • Microsoft Azure Blob Storage 📄
  • Microsoft Azure Files Storage 📄
  • Microsoft OneDrive 📄
  • Minio 📄
  • Nextcloud 📄
  • Blomp Cloud Storage 📄
  • OpenDrive 📄
  • OpenStack Swift 📄
  • Oracle Cloud Storage 📄
  • Oracle Object Storage 📄
  • Outscale 📄
  • OVHcloud Object Storage (Swift) 📄
  • OVHcloud Object Storage (S3-compatible) 📄
  • ownCloud 📄
  • pCloud 📄
  • Petabox 📄
  • PikPak 📄
  • Pixeldrain 📄
  • premiumize.me 📄
  • put.io 📄
  • Proton Drive 📄
  • QingStor 📄
  • Qiniu Cloud Object Storage (Kodo) 📄
  • Rabata Cloud Storage 📄
  • Quatrix 📄
  • Rackspace Cloud Files 📄
  • RackCorp Object Storage 📄
  • rsync.net 📄
  • Scaleway 📄
  • Seafile 📄
  • Seagate Lyve Cloud 📄
  • SeaweedFS 📄
  • Selectel Object Storage 📄
  • Servercore Object Storage 📄
  • SFTP 📄
  • Shade 📄
  • SMB / CIFS 📄
  • Spectra Logic 📄
  • Storj 📄
  • SugarSync 📄
  • Synology C2 Object Storage 📄
  • Tencent Cloud Object Storage (COS) 📄
  • Uloz.to 📄
  • US3 Object Storage 📄
  • Wasabi 📄
  • WebDAV 📄
  • Yandex Disk 📄
  • Zadara Object Storage 📄
  • Zoho WorkDrive 📄
  • Zata.ai 📄
  • 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 📄
  • Archive: read archive files 📄
  • 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).

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Forked rclone with Dropbox ListR, --delta-list bisync, fail-closed listings
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