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68 Commits

Author SHA1 Message Date
Filipe Azevedo 06657c49a0 cmount: introduce symlink support #2975 2024-12-13 12:43:20 +00:00
Nick Craig-Wood c0339327be vfs: add ELOOP error 2024-12-13 12:43:20 +00:00
Nick Craig-Wood 1f328fbcfd cmount: fix problems noticed by linter 2024-12-13 12:43:20 +00:00
albertony 68bf6aa584 build: remove build constraint syntax for go 1.16 and older 2024-04-18 16:53:55 +02:00
Nick Craig-Wood a67688dcc7 mount,cmount,mount2: add --direct-io flag to force uncached access 
This change adds the --direct-io flag to the mount. This means the
page cache is completely bypassed for reads and writes. No read-ahead
takes place. Shared mmap is disabled.

This is useful to accurately read files which may change length
frequently on the source.
 2024-03-26 17:32:11 +00:00
Roberto Ricci 50d0597d56 cmount: use atomic types 2023-08-22 12:52:13 +01:00
Nick Craig-Wood 8c6ff1fa7e cmount: fix creating and renaming files on case insensitive backends 
Before this fix, we told cgofuse/WinFSP that the backend was case
insensitive but didn't implement the Getpath backend function to
return the normalised case of a file.

Resently cgofuse started implementing case insensitive files properly
but since we hadn't implemented Getpath, the file names were taking
the default of all in UPPER CASE.

This patch implements Getpath for cgofuse which fixes the case
problems.

This problem came to light when we upgraded cgofuse and WinFSP (to
1.12) which had the code to implement Getpath.

Fixes #6682
 2023-01-11 17:21:57 +00:00
Nick Craig-Wood 3f61869179 cmount: add tracing for *xattr FUSE callbacks 
See: https://github.com/winfsp/cgofuse/issues/66
See: https://forum.rclone.org/t/cannot-copy-files-to-mounted-azure-storage-windows/30092
 2022-06-16 22:13:50 +01:00
Nick Craig-Wood a947f298e6 cmount: remove cgo from windows build requirements since it builds without 2022-04-29 18:04:21 +01:00
Nick Craig-Wood 4c02f50ef5 build: update github.com/billziss-gh to github.com/winfsp 2022-04-13 10:18:26 +01:00
Nick Craig-Wood e43b5ce5e5 Remove github.com/pkg/errors and replace with std library version 
This is possible now that we no longer support go1.12 and brings
rclone into line with standard practices in the Go world.

This also removes errors.New and errors.Errorf from lib/errors and
prefers the stdlib errors package over lib/errors.
 2021-11-07 11:53:30 +00:00
Ivan Andreev 24de896df2 build: apply gofmt from golang 1.17 2021-09-09 20:43:59 +03:00
Nick Craig-Wood 2f67681e3b cmount: don't attempt to unmount if fs has been destroyed already #4957 2021-01-30 17:19:28 +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 1222b78ec4 cmount: add support for reading unknown length files using direct IO 
This means that on Linux and OSX at least reading a google doc from a
mount will behave sensibly.
 2020-07-28 16:23:11 +01:00
Nick Craig-Wood 4ac662d144 cmount: fix macOS losing directory contents #4393 
Before this change when reading directories we would use the directory
handle and the Readdir(-1) call on the directory handle. This worked
fine for the first read, but if the directory was read again on the
same handle Readdir(-1) returns nothing (as per its design).

It turns out that macOS leaves the directory handle open and just
re-reads the data from it, so this problem causes directories to start
out full then subsequently appear empty.

macOS/OSXFUSE is passing an offset of 0 to the Readdir call telling
rclone to seek in the directory, but we've told FUSE that we can't
seek by always returning ofst=0 in the fill function.

This fix works around the problem by reading the directory from the
path each time, ignoring the actual handle. This should be no less
efficient.

We will return an ESPIPE if offset is ever non 0.

There are possible corner cases reading deleted directories which this
ignores.
 2020-07-24 15:38:08 +01:00
Nick Craig-Wood d73a418a55 cmount: always supply stat information in Readdir 
It is cheap to make the stat information here - we give FUSE a file
type to look at least.
 2020-07-24 15:12:05 +01:00
Nick Craig-Wood 2871268505 mount: change interface of mount commands to take VFS 
This is in preparation of being able to pass options to the rc command
"mount/mount"
 2020-07-23 12:30:41 +01:00
Nick Craig-Wood d260238f99 cmount: use ReaddirPlus on Windows to improve directory listing performance 
Before this change Windows would read a directory then immedately stat
every item in the directory.

After this change we return the stat information along with the
directory which stops so many callbacks.
 2020-05-04 11:38:07 +01:00
Nick Craig-Wood 3f654dac37 mount: map more rclone errors into file systems errors 
This improves the error reporting, in particular for
fs.ErrorPermissionDenied which was being reported as an IO error.
 2020-04-21 16:31:43 +01:00
Nick Craig-Wood eed9c5738d vfs: factor the vfs cache into its own package 2020-04-20 10:42:33 +01:00
Nick Craig-Wood da41db4712 vfs,mount,cmount: report 1PB free for unknown disk sizes 
Factor the logic into the VFS layer so we don't have to duplicate it
into mount and cmount.

See: https://forum.rclone.org/t/rclone-mount-question/15454/
 2020-04-11 13:31:10 +01:00
Nick Craig-Wood 0b7f959433 cmount: when setting dates discard out of range dates 
It appears that sometimes Windows/WinFSP/cgofuse sends dates which are
the epoch to rclone.  These dates appear as 1601-01-01 00:00:00 plus
or minus the timezone.

These dates aren't being sent from rclone.

This patch filters dates out before 1601-01-02 so rclone does not
attempt to set them.

See: https://forum.rclone.org/t/bug-corruption-of-modtime-via-vfs-layer/12204
See: https://forum.rclone.org/t/io-error-googleapi-error-403-insufficient-permission-insufficientpermissions/11372
See: https://github.com/billziss-gh/cgofuse/issues/35
 2020-01-18 11:13:35 +00:00
Brett Dutro 378a3f4133 mount: replace use of WriteAt with Write for cache mode >= writes and O_APPEND 
os.File.WriteAt returns an error if a file was opened with O_APPEND.
This replaces it with os.File.Write if the file was opened with
O_APPEND.
 2019-10-26 17:27:52 +01:00
Nick Craig-Wood 59026c4761 mount, cmount: don't pass huge filenames (>4k) to FUSE as it can't cope 2019-10-21 20:51:11 +01:00
Nick Craig-Wood 0baafb158f mount: allow files of unkown size to be read properly 
Before this change, files of unknown size (eg Google Docs) would
appear in file listings with 0 size and would only allow 0 bytes to be
read.

This change sets the direct_io flag in the FUSE return which bypasses
the cache for these files.  This means that they can be read properly.

This is compatible with some, but not all applications.
 2019-09-14 13:22:33 +01:00
Nick Craig-Wood ffa1dac10b build: apply gofmt from go1.13 to change case of number literals 2019-09-05 13:59:06 +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
Nick Craig-Wood 174ca22936 mount,cmount: clip the number of blocks to 2^32-1 on macOS 
OSX FUSE only supports 32 bit number of blocks which means that block
counts have been wrapping.  This causes f_bavail to be 0 which in turn
causes problems with programs like borg backup.

Fixes #2356
 2018-08-26 17:32:59 +01:00
Nick Craig-Wood cb5bd47e61 build: fix errors spotted by ineffassign linter 
These were mostly caused by shadowing err and a good fraction of them
will have caused errors not to be propagated properly.
 2018-05-05 17:32:41 +01:00
Nick Craig-Wood 2b855751fc vfs,mount,cmount: use About to return the correct disk total/used/free 
Disks total, used, free now shows correctly for mount and cmount (eg
`df` for Unix or in the Windows explorer).
 2018-04-18 18:27:34 +01:00
Nick Craig-Wood 4f6f07c074 cmount: fix error handling for Open/OpenDir 2018-03-21 19:44:30 +00:00
Nick Craig-Wood 34c45a7c04 mount, cmount: remove addition of O_CREATE to flags on file open #2141 
Previously this was adding it in to all file opens which was causing
inefficiencies under Windows where it stats the file using
open/fstat/close.

This change will make stat operations run much quicker under Windows
as they won't have to open the underlying file

This problem was introduced in61b6159a05336bd7ba105766de2d2ff171f7fb81
where we added O_CREATE to all file opens and creates.
 2018-03-15 20:48:56 +00:00
Nick Craig-Wood 54deb01f00 vfs: Make OpenFile and friends return EINVAL if O_RDONLY and O_TRUNC 
Before this change Open("name", os.O_RDONLY|os.O_TRUNC) would have
truncated the file.  This is what Linux does, but is counterintuitive.
POSIX states this is undefined, so return an error in this case
instead.  This preserves the invariant O_RDONLY => file is not
changed.
 2018-02-26 17:04:27 +00:00
Nick Craig-Wood a80d8a21dc vfs: add flags parameter to Dir.Create 2018-01-19 13:18:40 +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 61b6159a05 mount, cmount: add O_CREATE to Open calls since fuse doesn't seem to supply it 2017-11-20 12:46:22 +00:00
Nick Craig-Wood c560017934 vfs: add Path method to Node and use it to stop reading nil DirEntry 
All DirEntry calls now have been checked for nil or converted to use Path.
 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 94adf4f43b cmount: translate FUSE open flags into OS flags 
On Windows the fuse.O_* flags do not have the same values as the
os.O_* flags so translate between the two representations.  They are
mostly the same which is why this hasn't caused a problem before.
 2017-11-20 12:46:22 +00:00
Nick Craig-Wood f5f8c0c438 cmount: make Truncate call the correct Handle or Node method 2017-11-20 12:46:22 +00:00
Nick Craig-Wood 3fb1e96988 vfs: factor Open logic from Dir.Create into vfs.OpenFile 2017-11-20 12:00:32 +00:00
Nick Craig-Wood 2083ac6e2a vfs: add ECLOSED and tidy errors 2017-11-04 10:24:10 +00:00
Nick Craig-Wood 22ee839d05 cmount,vfs: unify Read and Write handles and File and Dir where possible 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 8184ec4b70 vfs: add EPERM to errors 2017-11-03 13:00:00 +00:00
Nick Craig-Wood 190367d917 vfs: factor duplicated Open code into vfs from mount/cmount 2017-11-03 13:00:00 +00:00
Nick Craig-Wood 7e065440fb vfs: rename Lookup to Stat to be more in keeping with os 2017-11-03 12:59:59 +00:00
Nick Craig-Wood e8883e9fdb vfs: factor flags into vfsflags and remove global variables 2017-11-03 12:59:59 +00:00
Nick Craig-Wood 1a8f824bad vfs: use os package errors where possible 2017-11-03 12:59:59 +00:00