Commit graph

39 commits

Author SHA1 Message Date
Nick Craig-Wood
a5abe4b8b3 vfs: add symlink support to VFS
This is somewhat limited in that it only resolves symlinks when files
are opened. This will work fine for the intended use in rclone mount,
but is inadequate for the other servers probably.
2024-12-13 12:43:20 +00:00
albertony
e82b5b11af build: fix gocritic lint issue elseif 2024-08-15 22:08:34 +01:00
Nick Craig-Wood
fc1d8dafd5 vfs: convert time.Duration option to fs.Duration 2024-07-15 11:09:54 +01:00
Saleh Dindar
23f8dea182 vfs: [bugfix] Implement Name() method in WriteFileHandle and ReadFileHandle
Name() method was originally left out and defaulted to the base
class which always returns empty. This trigerred incorrect behavior
in serve nfs where it relied on the Name() of the interafce to figure
out what file it was modifying.

This method is copied from RWFileHandle struct.

Added extra assert in the tests.
2023-10-06 14:08:20 +01:00
WeidiDeng
7771aaacf6 vfs: fix writing to a read only directory creating spurious directory entries
Before this fix, when a write to a read only directory failed, rclone
would leav spurious directory entries in the directory.

This confuses `rclone serve webdav` into giving this error

    http: superfluous response.WriteHeader

This fixes the VFS layer to remove any directory entries where the
file creation did not succeed.

Fixes #5702
2023-04-18 17:33:04 +01:00
Nick Craig-Wood
617c5d5e1b rcat: preserve metadata when Copy falls back to Rcat
Before this change if we copied files of unknown size, then they lost
their metadata.

This was particularly noticeable using --s3-decompress.

This change adds metadata to Rcat and RcatSized and changes Copy to
pass the metadata in when it calls Rcat for an unknown sized input.

Fixes #6546
2022-11-10 12:04:35 +00:00
Nick Craig-Wood
a07d376fb1 vfs: reduce memory usage by re-ordering commonly used structures 2022-08-04 10:19:47 +01:00
Nick Craig-Wood
e749bc58f4 vfs: reduce memory use by embedding sync.Cond 2022-08-04 10:19:47 +01:00
albertony
ec117593f1 Fix lint issues reported by staticcheck
Used staticcheck 2022.1.2 (v0.3.2)

See: staticcheck.io
2022-06-13 21:13:50 +02:00
Josh Soref
3e1cb8302a docs: spelling: etc.
Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-10-28 18:16:23 +00:00
Josh Soref
d0888edc0a Spelling fixes
Fix spelling of: above, already, anonymous, associated,
authentication, bandwidth, because, between, blocks, calculate,
candidates, cautious, changelog, cleaner, clipboard, command,
completely, concurrently, considered, constructs, corrupt, current,
daemon, dependencies, deprecated, directory, dispatcher, download,
eligible, ellipsis, encrypter, endpoint, entrieslist, essentially,
existing writers, existing, expires, filesystem, flushing, frequently,
hierarchy, however, implementation, implements, inaccurate,
individually, insensitive, longer, maximum, metadata, modified,
multipart, namedirfirst, nextcloud, obscured, opened, optional,
owncloud, pacific, passphrase, password, permanently, persimmon,
positive, potato, protocol, quota, receiving, recommends, referring,
requires, revisited, satisfied, satisfies, satisfy, semver,
serialized, session, storage, strategies, stringlist, successful,
supported, surprise, temporarily, temporary, transactions, unneeded,
update, uploads, wrapped

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-10-14 15:21:31 +01:00
Nick Craig-Wood
4441e012cf vfs: fix saving from chrome without --vfs-cache-mode writes #4293
Due to Chrome's rather complicated use of file handles when saving
files from the download windows, rclone was attempting to truncate a
closed file.

The file appeared closed due to the handling of 0 length files.

This patch removes the check for the file being closed in the
WriteFileHandle.Truncate call. This is safe because the only action
this method takes is to emit an error message if the file is the wrong
size.

See: https://forum.rclone.org/t/google-drive-cannot-save-files-directly-from-browser-to-gdrive-mounted-path/17992/
2020-07-28 17:18:31 +01:00
Nick Craig-Wood
917cb4acb3 vfs: implement partial reads in --vfs-cache-mode full
This allows reads to only read part of the file and it keeps on disk a
cache of what parts of each file have been loaded.

File data itself is kept in sparse files.
2020-06-30 12:01:36 +01:00
Martin Michlmayr
4aee962233 doc: fix typos throughout docs and code 2020-05-20 15:54:51 +01:00
Nick Craig-Wood
0f9267d5fc vfs: factor waiting code from read and writes into common function 2020-05-18 18:09:23 +01:00
Nick Craig-Wood
238f26cc90 vfs: stop reading File members from outside file.go
This also fixes locking for ReadFileHandle and WriteFileHandle
accessing File members
2020-04-19 15:16:43 +01:00
Nick Craig-Wood
393b94bb70 vfs: add --vfs-read-wait and --vfs-write-wait flags
--vfs-read-wait duration    Time to wait for in-sequence read before seeking. (default 5ms)
    --vfs-write-wait duration   Time to wait for in-sequence write before giving error. (default 1s)

See: https://forum.rclone.org/t/constantly-high-iowait-add-log/14156
2020-02-27 16:12:33 +00:00
Nick Craig-Wood
d377842395 vfs: make write without cache more efficient
This updates the out of sequence write code to be more efficient using
a conditional lock with a timeout.
2019-08-08 12:37:50 +01:00
Nick Craig-Wood
57d5de6fba build: fix up package paths after repo move
git grep -l github.com/ncw/rclone | xargs -d'\n' perl -i~ -lpe 's|github.com/ncw/rclone|github.com/rclone/rclone|g'
goimports -w `find . -name \*.go`
2019-07-28 18:47:38 +01:00
Aleksandar Jankovic
f78cd1e043 Add context propagation to rclone
- Change rclone/fs interfaces to accept context.Context
- Update interface implementations to use context.Context
- Change top level usage to propagate context to lover level functions

Context propagation is needed for stopping transfers and passing other
request-scoped values.
2019-06-19 11:59:46 +01:00
Nick Craig-Wood
af030f74f5 vfs: make WriteAt for non cached files work with non-sequential writes
This makes WriteAt for non cached files wait a short time if it gets
an out of order write (which would normally cause an error) to see if
the gap will be filled with an in order write.

The makes the SFTP backend work fine with --vfs-cache-mode off
2019-05-11 23:39:04 +01:00
Nick Craig-Wood
0175332987 vfs: fix applying modtime for an open Write Handle
The symptom of this was that the time set when the file was open was
lost.  This was causing one of the mount tests to fail too.
2018-03-06 21:58:11 +00:00
Fabian Möller
62e72801be
vfs: fix race between multiple RWFileHandle (#2052)
Fixes #2034
2018-02-18 14:12:26 +01:00
Stefan Breunig
846bbef1e9 vfs: write 0 bytes when flushing unwritten handles to avoid race conditions in FUSE - fixes #1181 2018-02-11 17:59:13 +00:00
Nick Craig-Wood
dbabb18b0c vfs: Make error messages more informative #2009 2018-01-25 10:33:00 +00:00
Nick Craig-Wood
11da2a6c9b Break the fs package up into smaller parts.
The purpose of this is to make it easier to maintain and eventually to
allow the rclone backends to be re-used in other projects without
having to use the rclone configuration system.

The new code layout is documented in CONTRIBUTING.
2018-01-15 17:51:14 +00:00
Nick Craig-Wood
38b85e94ea vfs: rename --cache-* options to --vfs-cache-* to save confusion
..as the backend cache options are all called --cache-* too. Adjust
docs to point out what the vfs cache does vs the backend cache.
2017-12-03 12:14:15 +00:00
Nick Craig-Wood
3fb4fe31d2 vfs: make sure write only handles never truncate files they shouldn't 2017-11-20 19:42:25 +00:00
Nick Craig-Wood
b4083b4371 vfs: rename Fsync to Sync and implement Sync on Node and Handle 2017-11-20 12:46:23 +00:00
Nick Craig-Wood
321b6da7af vfs: don't remove file from writers until it is transferred
This means that the list of active writers is up to date
2017-11-20 12:46:23 +00:00
Nick Craig-Wood
eab55ce882 vfs: add open files to directories 2017-11-20 12:46:23 +00:00
Nick Craig-Wood
992647b157 vfs: Don't error a r/w file open without cache; delay error until Read called
If we open a file for r/w without the cache we now always return a
handle and return an error if the file is ever read from.  This fixes
incompatibility with cmount under windows.
2017-11-20 12:46:22 +00:00
Nick Craig-Wood
dec21ccf63 vfs, cmount: make truncate work properly in the presence or otherwise of open files 2017-11-20 12:46:22 +00:00
Nick Craig-Wood
a0cfa0929b vfs: remove un-needed (after introduction of rcat) createInfo struct 2017-11-20 12:00:32 +00:00
Nick Craig-Wood
c31556c6d1 vfs: Make sure all public methods are locked in Read and Write Handle 2017-11-04 10:24:10 +00:00
Nick Craig-Wood
2083ac6e2a vfs: add ECLOSED and tidy errors 2017-11-04 10:24:10 +00:00
Nick Craig-Wood
e18122e88b vfs: add tests and subsequent fixes
* Tests for VFS layer
  * Small fixes found during testing
  * Fix Close, Flush and Release behaviour for ReadFileHandle and WriteFileHandle
  * Fix nil object bugs on File
2017-11-04 10:24:10 +00:00
Nick Craig-Wood
a5dc62f6c1 vfs: Make file handles compatible with OS
* Implement directory handles
  * Unify OpenFile
  * Add all the methods to match *os.File
  * Add StatParent and Rename methods to VFS
2017-11-03 13:00:00 +00:00
Nick Craig-Wood
c1aaff220d Factor new vfs module out of cmd/mountlib
This is an OS style file system abstraction with directory caching
used in mount, cmount, serve webdav and serve http.
2017-11-03 12:59:59 +00:00
Renamed from cmd/mountlib/write.go (Browse further)