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58 commits

Author SHA1 Message Date
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
7713acf23d mount: skip failing test TestFileModTimeWithOpenWriters on Windows 2018-03-09 23:15:38 +00:00
Nick Craig-Wood
fc32fee4ad mount, cmount: add --attr-timeout to control attribute caching in kernel 
This flag allows the attribute caching in the kernel to be controlled.
The default is 0s - no caching - which is recommended for filesystems
which can change outside the control of the kernel.

Previously this was at the default meaning it was 60s for mount and 1s
for cmount.  This showed strange effects when files changed on the
remote not via the kernel.  For instance Caddy would serve corrupted
files for a while when serving from an rclone mount when a file
changed on the remote.
 2018-03-04 11:20:22 +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
2b666187a6 cmount: disable tests on windows + race detector 
These either hang or produce incorrect results for reasons I haven't
worked out yet.
 2017-11-20 12:46:24 +00:00
Nick Craig-Wood
eb3415db50 cmount: enable more tests for Windows 2017-11-20 12:46:23 +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
7c3584f4e6 mountlib: wait for mountpoint to disappear 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
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
60cdcf784c cmount: use -o atomic_o_trunc to make sure O_TRUNC is supplied to Open() 2017-11-20 12:46:22 +00:00
Nick Craig-Wood
57a5c67729 mounttest: run the tests for all 4 VFS cache modes 2017-11-20 12:46:21 +00:00
Nick Craig-Wood
8951875c21 vfs,mount,cmount,mountlib: allow flags to be overriden by environment variables 2017-11-20 12:46:21 +00:00
Nick Craig-Wood
3fb1e96988 vfs: factor Open logic from Dir.Create into vfs.OpenFile 2017-11-20 12:00:32 +00:00
Fabian Möller
d8b3bf014d mount: use sdnotify to signal systemd the mount is ready 
When the NOTIFY_SOCKET environment variable is set notify systemd after
the mount is ready.
 2017-11-20 11:03:10 +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
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
Nick Craig-Wood
ca19fd2d7e mountlib: Make read/write file handles support more standard interfaces 
Including Read, ReadAt, Seek, Close for read handles and Write,
WriteAt, Close for read handles.
 2017-11-03 12:59:59 +00:00
Nick Craig-Wood
2fac74b517 mountlib: store only Node in *Dir removing DirEntry struct 2017-11-03 12:59:59 +00:00
Nick Craig-Wood
0bb84efe75 mountlib: Rename Remove to RemoveName 2017-11-03 12:59:59 +00:00
Nick Craig-Wood
750690503e mountlib: make Node satisfy os.FileInfo interface 2017-11-03 12:59:58 +00:00
Nick Craig-Wood
dcce65b2b3 mount/cmount: factor duplicated code into mountlib 2017-06-19 14:36:51 +01:00
Stefan Breunig
9782c264e9 hand dirCacheTime through again 2017-06-01 09:02:22 +01:00
Stefan Breunig
a2e3af0523 poll for Google Drive changes when mounted 2017-05-28 17:54:52 +01:00
Nick Craig-Wood
8f54dc06a2 Use build tags to control when and where cmount is built 2017-05-19 17:08:04 +01:00
Nick Craig-Wood
ecedcd0e7f cmount: stop failing tests on Windows 2017-05-15 17:40:44 +01:00
Nick Craig-Wood
b259f8b752 cmount, mount, mountlib: make --read-only reject modify operations 
Normally mount/cmount use `-o ro` to get the kernel to mark the fs as
read only.  However this is ignored by WinFsp, so in addition if
`--read-only` is in effect then return EROFS ("Read only File System")
from all methods which attempt to modify something.
 2017-05-15 16:56:47 +01:00
Nick Craig-Wood
204a19e67f cmount: Wait for mountpoint to appear on Windows before declaring mounted 2017-05-15 16:56:46 +01:00
Nick Craig-Wood
e6ffe3464c cmount: check for filesystem blowing up before Init is called 2017-05-15 16:56:46 +01:00
Nick Craig-Wood
0384364c3e cmount: pass --FileSystemName under windows 2017-05-15 16:56:46 +01:00
Nick Craig-Wood
763facfd78 cmount: implement --fuse-flag to pass commands to fuse library directly 
Useful for `--fuse-flag -h` to see exactly which options the library supports.
 2017-05-15 16:56:46 +01:00
Nick Craig-Wood
bc88f1dafa cmount: fix openFile leak 2017-05-15 16:56:46 +01:00
Nick Craig-Wood
0c055a1215 cmount: Statfs: reduce max size of volume for Windows 2017-05-15 16:56:46 +01:00
Nick Craig-Wood
938d7951ab cmount: allow extra options to pass to fuse with -o 2017-05-15 16:56:45 +01:00
Nick Craig-Wood
b4466bd9b1 Add -o uid=-1 -o gid=-1 for Windows/WinFsp 2017-05-15 16:56:45 +01:00
Nick Craig-Wood
31f76aa464 cmount: implement no-ops for Fsync, Chmod, Chown, Access, Fsyncdir and stop using fuse.FileSystemBase 2017-05-15 16:56:45 +01:00
Nick Craig-Wood
c887c164dc cmount: add function tracing 2017-05-15 16:56:45 +01:00
Nick Craig-Wood
9c3048580a cmount: fix code quality warnings 2017-05-15 16:56:45 +01:00