Commit Graph

1503 Commits

Author SHA1 Message Date
Ivan Andreev
a95c7a001e core: run rclone as mount helper - #5594 2021-10-03 01:44:08 +03:00
Ivan Andreev
ffa1b1a258 config: enable verbose logging by the --verbose argument - #5594 2021-10-03 01:44:08 +03:00
Ivan Andreev
8b8a943dd8 mountlib: correctly daemonize for compatibility with automount - #5593
This patch will:
- add --daemon-wait flag to control the time to wait for background mount
- remove dependency on sevlyar/go-daemon and implement backgrounding directly
- avoid setsid during backgrounding as it can result in race under Automount
- provide a fallback PATH to correctly run `fusermount` under systemd as it
  runs mount units without standard environment variables
- correctly handle ^C pressed while background process is being setting up
2021-10-02 23:45:16 +03:00
Ivan Andreev
68be24c88d log: optionally print pid in logs - #5593
This option is useful to troubleshoot `rclone mount --daemon`
2021-10-02 23:45:16 +03:00
albertony
fbc7f2e61b lib/file: improve error message when attempting to create dir on nonexistent drive on windows
This replaces built-in os.MkdirAll with a patched version that stops the recursion
when reaching the volume part of the path. The original version would continue recursion,
and for extended length paths end up with \\? as the top-level directory, and the error
message would then be something like:
mkdir \\?: The filename, directory name, or volume label syntax is incorrect.
2021-10-01 23:18:39 +02:00
albertony
59c74ea1b8 config: support hyphen in remote name from environment variable 2021-10-01 15:18:04 +02:00
Ivan Andreev
24de896df2 build: apply gofmt from golang 1.17 2021-09-09 20:43:59 +03:00
albertony
f1f923a986 Change byte unit format from MiByte to MiB 2021-08-31 09:57:27 +02:00
albertony
721a9786a7 ls: introduce and global option to print human-readable sizes and consider it for ls commands
Fixes #1890
2021-08-31 09:57:27 +02:00
Nick Craig-Wood
2cefae51a1 build: make go1.14 the minimum supported Go for building 2021-08-20 19:04:29 +01:00
Ken Enrique Morel
3626f10f26 pcloud: add sha256 support - fixes #5496 2021-08-14 12:48:25 +01:00
negative0
82ad9a30b9 rc: fix speed does not update in core/stats 2021-08-14 12:45:51 +01:00
Nick Craig-Wood
33ddd540b6 accounting: fix maximum bwlimit by scaling scale max token bucket size
Before this fix, on Windows, the --bwlimit would max out at 2.5Gbps
even when set to 10 Gbps.

This turned out to be because of the maximum token bucket size.

This fix scales up the token bucket size linearly above a bwlimit of
2Gbps.

Fixes #5507
2021-08-13 16:55:24 +01:00
Nathan Collins
c32d5dd1f3 fs: move with --ignore-existing will not delete skipped files - #5463 2021-08-01 17:46:45 +01:00
Nick Craig-Wood
7c58148840 Start v1.57.0-DEV development 2021-08-01 13:43:36 +01:00
Justin Winokur (Jwink3101)
675548070d fs/operations: add rmdirs -v output - fixes #5464 2021-07-24 09:16:23 +03:00
Nick Craig-Wood
770b3496a1 config: fix in memory config not saving on the fly backend config
Before this fix, saving a :backend config gave the error

    Can't save config "token" = "XXX" for on the fly backend ":backend"

Even when using the in-memory config `--config ""`

This fixes the problem by
- always using the in memory config if it is configured
- moving the check for a :backend config save to the file config backend

It also removes the contents of the config items being saved from the
log which saves confidential tokens being logged.

Fixes #5451
2021-07-20 12:09:38 +01:00
Nick Craig-Wood
ba5c559fec fs/sync: fix tests by only --compare-dest timestamp if have hash
This fixes the integration test errors introduced in #5410
2021-07-07 16:59:51 +01:00
Ivan Andreev
b40d9bd4c4
cmd: add hashSUM file support (#5352)
Currently rclone check supports matching two file trees by sizes and hashes.
This change adds support for SUM files produced by GNU utilities like sha1sum.

Fixes #1005 

Note: checksum by default checks, hashsum by default prints sums.
New flag is named "--checkfile" but carries hash name.
Summary of introduced command forms:

```
rclone check sums.sha1 remote:path --checkfile sha1
rclone checksum sha1 sums.sha1 remote:path             
rclone hashsum sha1 remote:path --checkfile sums.sha1
rclone sha1sum remote:path --checkfile sums.sha1
rclone md5sum remote:path --checkfile sums.md5
```
2021-07-07 18:34:16 +03:00
Ivan Andreev
4680c0776d
backend/local: skip entries removed concurrently with List() (#5297)
This change fixes the bug described below:
if a file is removed while the local backend List() runs,
the call will flag an accounting error.
The bug manifests itself if local backend is the Sync target
due to intrinsic concurrency.
The odds to hit this bug depend on --checkers and --transfers.
Chunker over local backend is affected even more because
updating a composite object with a smaller size content
translates into removing chunks on the underlying file system
and involves a number of List() calls.
2021-07-07 16:50:19 +03:00
Ole Frost
58c99427b3 config: fixed issues with flags/options set by environment vars.
Some environment variables didn’t behave like their corresponding
command line flags. The affected flags were --stats, --log-level,
--separator, --multi-tread-streams, --rc-addr, --rc-user and --rc-pass.
Example:

    RCLONE_STATS='10s'
    rclone check remote: remote: --progress
    # Expected: rclone check remote: remote: --progress –-stats=10s
    # Actual: rclone check remote: remote: --progress

Remote specific options set by environment variables was overruled by
less specific backend options set by environment variables. Example:

    RCLONE_DRIVE_USE_TRASH='false'
    RCLONE_CONFIG_MYDRIVE_USE_TRASH='true'
    rclone deletefile myDrive:my-test-file
    # Expected: my-test-file is recoverable in the trash folder
    # Actual: my-test-file is permanently deleted (not recoverable)

Backend specific options set by environment variables was overruled by
general backend options set by environment variables. Example:

    RCLONE_SKIP_LINKS='true'
    RCLONE_LOCAL_SKIP_LINKS='false'
    rclone lsd local:
    # Expected result: Warnings when symlinks are skipped
    # Actual result: No warnings when symlinks are skipped
    # That is RCLONE_SKIP_LINKS takes precedence

The above issues have been fixed.

The debug logging (-vv) has been enhanced to show when flags are set by
environment variables.

The documentation has been enhanced with details on the precedence of
configuration options.

See pull request #5341 for more information.
2021-07-05 16:38:20 +01:00
Nick Gaya
40024990b7 fs/operations: Don't update timestamps of files in --compare-dest 2021-07-05 16:29:44 +01:00
Haochen Tong
04aa6969a4 accounting: calculate rolling average speed 2021-07-05 16:27:33 +01:00
Haochen Tong
d2050523de accounting: fix startTime of statsGroups.sum 2021-07-05 16:27:33 +01:00
Alex Chen
e635f4c0be
fs: make --dump imply -vv (#5418) 2021-06-23 00:32:26 +08:00
Alex Chen
96ace599a8
fs: fix logging level mentioned in docs of Logf 2021-06-21 23:30:26 +08:00
Ivan Andreev
80bccacd83
fs: split overgrown fs.go (#5405)
Nothing is added or removed and no package is renamed by this change.
Just rearrange definitions between source files in the fs directory.

New source files:
- types.go      Filesystem types and interfaces
- features.go   Features and optional interfaces
- registry.go   Filesystem registry and backend options
- newfs.go      NewFs and its helpers
- configmap.go  Getters and Setters for ConfigMap
- pacer.go      Pacer with logging and calculator
The final fs.go contains what is left.

Also rename options.go to open_options.go
to dissociate from registry options.
2021-06-14 14:42:49 +03:00
Tyson Moore
b5f8f0973b fshttp: implement graceful DSCP error handling 2021-05-28 13:43:38 +01:00
Tyson Moore
85b8ba9469 fshttp: rework address parsing for DSCP (fixes #5293) 2021-05-28 13:43:38 +01:00
Ivan Andreev
5b6f637461
fs/hash: align hashsum names and update documentation (#5339)
- Unify all hash names as lowercase alphanumerics without punctuation.
- Legacy names continue to work but disappear from docs, they can be depreciated or dropped later.
- Make rclone hashsum print supported hash list in case of wrong spelling.
- Update documentation.

Fixes #5071
Fixes #4841
2021-05-21 17:32:33 +03:00
Nick Craig-Wood
71f75a1d95 operations: fix tests work on compress by supplying incompressible data 2021-05-18 17:38:32 +01:00
Nick Craig-Wood
1773717a47 fs/march: improve errors when root source/destination doesn't exist
See: https://forum.rclone.org/t/rclone-attempts-to-read-files-in-the-destination-directory-when-the-source-doesnt-exist/23412
2021-05-17 16:38:03 +01:00
sp31415t1
f593558dc2
docs: improve --disable help 2021-05-14 15:44:58 +01:00
Nick Craig-Wood
77cda6773c config: tidy code to use UpdateRemote/CreateRemote instead of editOptions #3455 2021-05-14 14:07:44 +01:00
Nick Craig-Wood
dbc5167281 bin: add config.py as an example of how to use the state based config #3455 2021-05-14 14:07:44 +01:00
Nick Craig-Wood
635d1e10ae config create: add --state and --result parameters #3455 2021-05-14 14:07:44 +01:00
Nick Craig-Wood
296ceadda6 fs: add --all to rclone config create/update to ask all the config questions #3455
This also factors the config questions into a state based mechanism so
a backend can be configured using the same dialog as rclone config but
remotely.
2021-05-14 14:07:44 +01:00
Nick Craig-Wood
7ae2891252 fs: Add Exclusive parameter to Option to choose Examples only #3455 2021-05-14 14:07:44 +01:00
Nick Craig-Wood
095cf9e4be config create: add --non-interactive and --continue parameters #3455
This adds a mechanism to add external interfaces to rclone using the
state based configuration.
2021-05-14 14:07:44 +01:00
Nick Craig-Wood
f122808d86 fs: add names to each config parameter so we can override them #3455 2021-05-14 14:07:44 +01:00
Nick Craig-Wood
94dbfa4ea6 fs: change Config callback into state based callback #3455
This is a very large change which turns the post Config function in
backends into a state based call and response system so that
alternative user interfaces can be added.

The existing config logic has been converted, but it is quite
complicated and folloup commits will likely be needed to fix it!

Follow up commits will add a command line and API based way of using
this configuration system.
2021-05-14 14:07:44 +01:00
albertony
28e9fd45cc vfs: avoid unnecessary subdir in cache path
Fixes #5316
2021-05-13 11:16:42 +02:00
Chris Macklin
732bc08ced config: replace defaultConfig with a thread-safe in-memory implementation 2021-05-07 16:04:09 +01:00
Chris Macklin
35a86193b7 accounting: deglobalize startTime/elapsedTime - fixes #5282 2021-05-01 14:51:21 +01:00
Nick Craig-Wood
9e6c23d9af fs: add --disable-http2 for global http2 disable #5253 2021-04-30 20:31:04 +01:00
Nolan Woods
002d323c94 lib/http: Move HTTP object serialization logic to lib/http 2021-04-28 22:54:15 +01:00
Nick Craig-Wood
b78c9a65fa backends: remove log.Fatal and replace with error returns #5234
This changes the Config interface so that it returns an error.
2021-04-27 18:18:08 +01:00
albertony
08a2df51be Use decimal prefixes for counts
Fixes #5126
2021-04-27 02:25:52 +03:00
albertony
2925e1384c Use binary prefixes for size and rate units
Includes adding support for additional size input suffix Mi and MiB, treated equivalent to M.
Extends binary suffix output with letter i, e.g. Ki and Mi.
Centralizes creation of bit/byte unit strings.
2021-04-27 02:25:52 +03:00
albertony
2ec0c8d45f stats: correct spelling of data rate units 2021-04-27 02:25:52 +03:00
albertony
98579608ec docs: cleanup spelling of size and rate units 2021-04-27 02:25:52 +03:00
albertony
f8d56bebaf
config: delay load config file (#5258)
Restructuring of config code in v1.55 resulted in config
file being loaded early at process startup. If configuration
file is encrypted this means user will need to supply the password,
even when running commands that does not use config.
This also lead to an issue where mount with --deamon failed to
decrypt the config file when it had to prompt user for passord.

Fixes #5236
Fixes #5228
2021-04-26 23:37:49 +02:00
albertony
3544e09e95
config: treat any config file paths with filename notfound as memory-only config (#5235) 2021-04-18 00:09:03 +02:00
albertony
d8711cf7f9 config: create config file in windows appdata directory by default (#5226)
Use %AppData% as primary default for configuration file on Windows,
which is more in line with Windows standards, while existing default
of using home directory is more Unix standards - though that made rclone
more consistent accross different OS.

Fixes #4667
2021-04-13 19:25:09 +03:00
albertony
f2d3264054 config: prevent use of windows reserved names in config file name 2021-04-12 18:17:19 +02:00
albertony
23a0d4a1e6 config: fix issues with memory-only config file paths
Fixes #5222
2021-04-12 18:17:19 +02:00
Nick Craig-Wood
f52ae75a51 rclone authorize: Send and receive extra config options to fix oauth
Before this change any backends which required extra config in the
oauth phase (like the `region` for zoho) didn't work with `rclone
authorize`.

This change serializes the extra config and passes it to `rclone
authorize` and returns new config items to be set from rclone
authorize.

`rclone authorize` will still accept its previous configuration
parameters for use with old rclones.

Fixes #5178
2021-04-08 12:34:15 +01:00
Nick Craig-Wood
9d5c5bf7ab fs: add Options.NonDefault to read options which aren't at their default #5178 2021-04-08 12:34:15 +01:00
Nick Craig-Wood
53573b4a09 configmap: Add Encode and Decode methods to Simple for command line encoding #5178 2021-04-08 12:34:15 +01:00
Nick Craig-Wood
3622e064f5 configmap: Add priorities to configmap Setters #5178 2021-04-08 12:34:15 +01:00
Nick Craig-Wood
6d28ea7ab5 fs: factor config override detection into its own function #5178 2021-04-08 12:34:15 +01:00
Nick Craig-Wood
b9fd02039b authorize: refactor to use new config interfaces #5178 2021-04-08 12:34:15 +01:00
Nick Craig-Wood
1a41c930f3 configmap: add ClearSetters to get rid of all setters #5178 2021-04-08 12:34:15 +01:00
Nick Craig-Wood
54771e4402 sync: fix incorrect error reported by graceful cutoff - fixes #5203
Before this change, a sync which was finished with a graceful transfer
cutoff could return "context canceled" instead of the correct error.

This fixes the problem by ignoring "context canceled" errors if we
have done a graceful stop.
2021-04-06 13:08:42 +01:00
Nick Gaya
9db7c51eaa
sync: don't warn about --no-traverse when --files-from is set 2021-04-05 20:36:39 +01:00
Nick Craig-Wood
6d65d116df Start v1.56.0-DEV development 2021-03-31 19:51:43 +01:00
Nick Craig-Wood
d0f8b4f479 fs/cache: fix recreation of backends after they have expired
Before this change, on the first attempt to create a backend we used a
non-canonicalized string. When the backend expired the second attempt
to create it would use the canonicalized string (because it was in the
remap cache) which would fail because it was now `name{XXXX}:`

This change makes sure that whenever we create a backend we always use
the non-canonicalized string.

See: https://forum.rclone.org/t/connection-string-inconsistencies-on-beta/23171
2021-03-30 18:46:30 +01:00
Nick Craig-Wood
58d82a5c73 rc: allow fs= params to be a JSON blob 2021-03-30 17:07:27 +01:00
Nick Craig-Wood
c0c74003f2 fs/cache: add --fs-cache-expire-duration to control the fs cache
This commit makes the previously statically configured fs cache configurable.

It introduces two parameters `--fs-cache-expire-duration` and
`--fs-cache-expire-interval` to control the caching of the items.

It also adds new interfaces to lib/cache to set these.
2021-03-30 12:46:47 +01:00
Nick Craig-Wood
60bc7a079a rc: factor rc.Error out of rcserver for re-use in librclone #4891 2021-03-30 12:46:05 +01:00
Nick Craig-Wood
fc57648b75 lib/rest: fix multipart uploads stopping on context cancel
Before this change when the context was cancelled (due to
--max-duration for example) this could deadlock when uploading
multipart uploads.

This change fixes the problem by introducing another go routine to
monitor the context and close the pipe with an error when the context
errors.
2021-03-29 19:09:47 +01:00
Nick Craig-Wood
0fa68bda02 fspath: fix path parsing on Windows - fixes #5143
In this commit

8a46dd1b57 fspath: Implement a connection string parser #4996

The parsing code was re-written. This didn't quite work as before,
failing to adjust local paths on Windows when it should.

This patch fixes the problem and implements tests for it.
2021-03-24 09:47:03 +00:00
Ivan Andreev
ef5c212f9b version: show build tags and type of executable
This patch modifies the output of `rclone version`.
The `os/arch` line is split into `os/type` and `os/arch`.
The `go version` line is now tagged as `go/version` for consistency.

Additionally the `go/linking` line tells whether the rclone
was linked as a static or dynamic executable.
The new `go/tags` line shows a space separated list of build tags.

The info about linking and build tags is also added to the output
of the `core/version` RC endpoint.
2021-03-22 22:55:24 +03:00
Nick Craig-Wood
268a7ff7b8 rc: add a full set of stats to core/stats
This patch adds the missing stats to the output of core/stats

- totalChecks
- totalTransfers
- totalBytes
- eta

This now includes enough information to rebuild the normal stats
output from rclone including percentage completions and ETAs.

Fixes #5116
2021-03-22 10:10:36 +00:00
albertony
ce182adf46
copyurl: add option to print resulting auto-filename (#5095)
Fixes #5094
2021-03-18 10:04:59 +01:00
albertony
97fc3b9046
rc: avoid +Inf value for speed in core/stats (#5134)
Fixes #5132
2021-03-18 10:02:30 +01:00
Nick Craig-Wood
f47893873d fs: fix failed token refresh on mounts created via the rc
Users have noticed that backends created via the rc have been failing
to refresh their tokens with this error:

    Token refresh failed try 1/5: context canceled

This is because the rc server cancels the context used to make the
backend when the request has finished. This same context is used to
refresh the token and the oauth library checks to see if the context
has been cancelled.

This patch creates a new context for the cached backends and copies
the global and filter config into the new context.

See: https://forum.rclone.org/t/google-drive-token-refresh-failed/22283
2021-03-16 16:29:22 +00:00
Nick Craig-Wood
a12b2746b4 fs: make sure backends with additional config have a different name #4996
Backends for which additional config is detected (in the config string
or on the command line or as environment variables) will gain a suffix
`{XXXXX}` where `XXXX` is a base64 encoded md5hash of the config
string.

This fixes backend caching with config string remotes.

This much requested feature now works properly:

    rclone copy -vv drive,shared_with_me:file.txt drive:
2021-03-15 19:22:07 +00:00
Nick Craig-Wood
3dbef2b2fd fs: make sure we don't save on the fly remote config to the config file #4996 2021-03-15 19:22:07 +00:00
Nick Craig-Wood
f111e0eaf8 fs: enable configmap to be able to tell values set vs config file values #4996
This adds AddOverrideGetter and GetOverride methods to config map and
uses them in fs.ConfigMap.

This enables us to tell which values have been set and which are just
read from the config file or at their defaults.

This also deletes the unused AddGetters method in configmap.
2021-03-15 19:22:07 +00:00
Nick Craig-Wood
96207f342c configmap: add consistent String() method to configmap.Simple #4996 2021-03-15 19:22:07 +00:00
Nick Craig-Wood
e25ac4dcf0 fs: Use connection string config as highest priority config #4996 2021-03-15 19:22:07 +00:00
Nick Craig-Wood
71554c1371 fspath: factor Split into SplitFs and Split #4996 2021-03-15 19:22:07 +00:00
Nick Craig-Wood
8a46dd1b57 fspath: Implement a connection string parser #4996
This is implemented as a state machine parser so it can emit sensible
error messages.

It does not use the connection strings elsewhere in rclone yet - see
subsequent commits.

An optional fuzzer is implemented for the Parse function.
2021-03-15 19:22:07 +00:00
Nick Craig-Wood
3b21857097 config: clear fs cache of stale entries when altering config - fixes #4811
Before this change if a config was altered via the rc then when a new
backend was created from that config, if there was a backend already
running from the old config in the cache then it would be used instead
of creating a new backend with the new config, thus leading to
confusion.

This change flushes the fs cache of any backends based off a config
when that config is changed is over the rc.
2021-03-15 19:22:07 +00:00
Nick Craig-Wood
a10fbf16ea fs/cache: add ClearConfig method to clear all remotes based on Config #4811 2021-03-15 19:22:07 +00:00
Nick Craig-Wood
657be2ace5 rc: add fscache/clear and fscache/entries to control the fs cache #4811 2021-03-15 19:22:07 +00:00
Nick Craig-Wood
feaaca4987 fs/cache: add Entries() for finding how many entries in the fscache #4811 2021-03-15 19:22:07 +00:00
Nick Craig-Wood
25d5ed763c fs: make sync and operations tests use context instead of global variables 2021-03-15 19:22:07 +00:00
Nick Craig-Wood
294f090361 fs: make sure --low-level-retries, --checkers, --transfers are > 0 2021-03-15 17:05:35 +00:00
Nick Craig-Wood
301e1ad982 fs: fix crash when --low-level-retries=0 - fixes #5024 2021-03-15 17:05:35 +00:00
Nick Craig-Wood
3cf6ea848b config: remove log.Fatal and replace with error passing where possible 2021-03-14 16:03:35 +00:00
Nick Craig-Wood
bb0b6432ae config: --config "" or "/notfound" for in memory config only #4996
If `--config` is set to empty string or the special value `/notfound`
then rclone will keep the config file in memory only.
2021-03-14 16:03:35 +00:00
Nick Craig-Wood
46078d391f config: make config file reads reload the config file if needed #4996
Before this change the config file needed to be explicitly reloaded.
This coupled the config file implementation with the backends
needlessly.

This change stats the config file to see if it needs to be reloaded on
every config file operation.

This allows us to remove calls to

- config.SaveConfig
- config.GetFresh

Which now makes the the only needed interface to the config file be
that provided by configmap.Map when rclone is not being configured.

This also adds tests for configfile
2021-03-14 16:03:35 +00:00
Nick Craig-Wood
4013bc4a4c Fix excessive retries missing --max-duration timeout - fixes #4504
This change checks the context whenever rclone might retry, and
doesn't retry if the current context has an error.

This fixes the pathological behaviour of `--max-duration` refusing to
exit because all the context deadline exceeded errors were being
retried.

This unfortunately meant changing the shouldRetry logic in every
backend and doing a lot of context propagation.

See: https://forum.rclone.org/t/add-flag-to-exit-immediately-when-max-duration-reached/22723
2021-03-13 09:25:44 +00:00
Saksham Khanna
4d8ef7bca7
cmd/dedupe: make largest directory primary to minimize data moved (#3648)
This change makes dedupe recursively count elements in same-named directories
and make the largest one primary. This allows to minimize the amount of data
moved (or at least the amount of API calls) when dedupe merges them.
It also adds a new fs.Object interface `ParentIDer` with function `ParentID` and
implements it for the drive and opendrive backends. This function returns
parent directory ID for objects on filesystems that allow same-named dirs.
We use it to correctly count sizes of same-named directories.

Fixes #2568

Co-authored-by: Ivan Andreev <ivandeex@gmail.com>
2021-03-11 20:40:29 +03:00
Nick Craig-Wood
6a9ae32012 config: split up main file more and move tests into correct packages
This splits config.go into ui.go for the user interface functions and
authorize.go for the implementation of `rclone authorize`.

It also moves the tests into the correct places (including one from
obscure which was in the wrong place).
2021-03-11 17:29:26 +00:00
Nick Craig-Wood
a7fd65bf2d config: move account initialisation out into accounting
Before this change the initialisation for the accounting package was
done in the config package for some strange historical reason.
2021-03-11 17:29:26 +00:00
Nick Craig-Wood
1fed2d910c config: make config file system pluggable
If you are using rclone a library you can decide to use the rclone
config file system or not by calling

    configfile.LoadConfig(ctx)

If you don't you will need to set `config.Data` to an implementation
of `config.Storage`.

Other changes
- change interface of config.FileGet to remove unused default
- remove MustValue from config.Storage interface
- change GetValue to return string or bool like elsewhere in rclone
- implement a default config file system which panics with helpful error
- implement getWithDefault to replace the removed MustValue
- don't embed goconfig.ConfigFile so we can change the methods
2021-03-11 17:29:26 +00:00
Fionera
c95b580478 config: Wrap config library in an interface 2021-03-11 17:29:26 +00:00
Nick Craig-Wood
0ad38dd6fa dropbox,ftp,onedrive,yandex: make --timeout 0 work properly
See: https://forum.rclone.org/t/an-issue-about-ftp-backend-in-2-different-systems/22551
2021-03-01 12:08:58 +00:00
Nick Craig-Wood
1b92e4636e rc: implement passing filter config with _filter parameter 2021-02-23 10:54:40 +00:00
Nick Craig-Wood
c5a299d5b1 rc: fix options/local to return the filter options 2021-02-23 10:33:03 +00:00
Nick Craig-Wood
4b5fe3adad delete,rmdirs: make --rmdirs obey the filters
See: https://forum.rclone.org/t/a-problem-with-rclone-delete-from-list/22143
2021-02-19 10:32:28 +00:00
K265
930bca2478 feat: add multiple paths support to --compare-dest and --copy-dest flag 2021-02-16 18:17:04 +00:00
Nick Craig-Wood
2aebeb6061 accounting: fix --bwlimit when up or down is off - fixes #5019
Before this change the core bandwidth limit was limited to upload or
download value if the other value was off.

This fix only applies a core bandwidth limit when both values are set.
2021-02-13 12:45:12 +00:00
Nick Craig-Wood
e779cacc82 fshttp: fix bandwidth limiting after bad merge
Reapply missing bwlimiting which was inserted in

0a932dc1f2 Add --bwlimit for upload and download #1873

But accidentally removed when merging

edfe183ba2 fshttp: add DSCP support with --dscp for QoS with differentiated services
2021-02-13 12:45:12 +00:00
Ankur Gupta
47b69d6300 operations: Made copy and sync operations obey a RetryAfterError 2021-02-11 17:47:34 +00:00
Max Sum
edfe183ba2 fshttp: add DSCP support with --dscp for QoS with differentiated services 2021-02-10 18:29:18 +00:00
Nick Craig-Wood
f1147fe1dd rc: sync,copy,move: document createEmptySrcDirs parameter - fixes #4489 2021-02-08 12:25:40 +00:00
Nick Craig-Wood
8897377a54 filter: Make --exclude "dir/" equivalent to --exclude "dir/**"
Rclone uses directory exclusions to cut down the listing it has to do,
so before this fix `--exclude dir/` would make sure nothing in `dir/`
was scanned, **except** if --fast-list was used, in which case only
the directory was excluded and everything within it was included.

This is rather unexpected, so this patch makes `--exclude dir/` be
equivalent to `--exclude dir/**`, meaning that excluding a directory
excludes it and its contents.

We can't do the same for --include without changing the semantics of
filtering slightly.

Fixes #3375
2021-02-07 17:29:16 +00:00
Nick Craig-Wood
cdd99a6f39 fs/accounting: fix occasionally failing test on macOS 2021-02-07 14:59:53 +00:00
Nick Craig-Wood
6ecb5794bc rc: add _config parameter to set global config for just this rc call 2021-02-07 14:56:41 +00:00
Nick Craig-Wood
9a21aff4ed rc: add options/local to see the options configured in the context 2021-02-07 14:56:41 +00:00
Nick Craig-Wood
8574a7bd67 rc: factor async/sync job handing into rc/jobs from rc/rcserver
This fixes async jobs with `rclone rc --loopback` which isn't very
important but sets the stage for _config setting.
2021-02-07 14:56:41 +00:00
Nick Craig-Wood
a0fc10e41a rc: factor out duplicate code in job creation 2021-02-07 14:56:41 +00:00
Nick Craig-Wood
ae3963e4b4 fs: Add string alternatives for setting options over the rc
Before this change options were read and set in native format. This
means for example nanoseconds for durations or an integer for
enumerated types, which isn't very convenient for humans.

This change enables these types to be set with a string with the
syntax as used in the command line instead, so `"10s"` rather than
`10000000000` or `"DEBUG"` rather than `8` for log level.
2021-02-07 14:56:41 +00:00
Nick Craig-Wood
15e1a6bee7 build: raise minimum go version to go1.13 2021-02-03 17:41:06 +00:00
Nick Craig-Wood
beff081abb Start v1.55.0-DEV development 2021-02-02 16:30:58 +00:00
Nick Craig-Wood
0d8bcc08da Revert "fs/accounting: make edge bandwidth limiters have smaller bursts to make smoother" #4987
This reverts commit 463a18aa07.

In practice this caused Windows to have a max bandwidth limit of 8
MiB/s. This is because of the limited resolution (1ms) of the Windows
timer.

This needs fixing in a different way.

See: https://forum.rclone.org/t/bug-report-for-v1-54-0-beta-5133/22015
2021-02-01 22:23:50 +00:00
Nick Craig-Wood
463a18aa07 fs/accounting: make edge bandwidth limiters have smaller bursts to make smoother
This change decreases the edge limiter burst size which dramatically
increases the smoothness of the bandwidth limiting.

The core bandwidth limiter remains with a large burst so it isn't
affected by double rate limiting on the edge limiters.

See: #4395
See: https://forum.rclone.org/t/bwlimit-is-not-really-smooth/20947
2021-01-30 17:39:30 +00:00
Nick Craig-Wood
0a932dc1f2 Add --bwlimit for upload and download #1873 2021-01-30 17:39:30 +00:00
Nick Craig-Wood
8856e0e559 fshttp: Obey bwlimit in http Transport - fixes #4395
This change uses the bwlimit code to apply limits to the receive and
transmit data functions in the HTTP Transport.

This means that all HTTP transactions will have limiting applied -
this includes listings for example.

For HTTP based transorts this makes the limiting in Accounting
redundant and possibly counter productive
2021-01-30 17:39:30 +00:00
Nick Craig-Wood
3b6df71838 accounting: refactor bwlimit code to allow for multiple slots 2021-01-30 17:39:30 +00:00
negative0
6272ca74bc plugins: Move plugins cache path initialization to initPluginsOrError.
Fixes #4951.
2021-01-28 16:58:23 +00:00
Nick Craig-Wood
06f1c0c61c move: fix data loss when moving the same object
This checks to see if IDs are the same of the source and destination
object before deleting one of them and potentially causing data loss.

See: https://forum.rclone.org/t/files-deleted-and-not-moved/21830
2021-01-28 16:14:16 +00:00
albertony
7a496752f3 fs: add support for flag --no-console on windows to hide the console window 2021-01-27 18:44:35 +00:00
Zach Kipp
6156f90601 Fix test failure in different local time zones
TestParseDuration relied on an elapsed time calculation which
would vary based on the system local time. Fix the test by not relying
on the system time location. Also make the test more deterministic
by injecting time in tests rather than using system time.

Fixes #4529.
2021-01-27 15:05:35 +00:00
Aleksandar Jankovic
38e70f1797 rc/jobs: add listener for finished jobs
Add jobs.OnFinish method to register listener that will trigger when job
is finished.

Includes fix for stopping listeners.
2021-01-21 13:43:41 +00:00
Nick Craig-Wood
a7689d7023 rcserver: fix 500 error when marshalling errors from core/command
Before this change attempting to return an error from core/command
failed with a 500 error and a message about unmarshable types.

This is because it was attempting to marshal the input parameters
which get _response added to them which contains an unmarshalable
field.

This was fixed by using the original parameters in the error response
rather than the one modified during the error handling.

This also adds end to end tests for the streaming facilities as used
in core/command.
2021-01-10 16:34:46 +00:00
Nick Craig-Wood
847a44e7ad fs/rc: add Copy method to rc.Params 2021-01-10 16:34:46 +00:00
Nick Craig-Wood
b3710c962e rc: fix core/command giving 500 internal error - fixes #4914
Before this change calling core/command gave the error

    error: response object is required expecting *http.ResponseWriter value for key "_response" (was *http.response)

This was because the http.ResponseWriter is an interface not an object.

Removing the `*` fixes the problem.

This also indicates that this bit of code wasn't properly tested.
2021-01-10 16:34:46 +00:00
Nick Craig-Wood
01adee7554 build: raise minimum go version to go1.12 2021-01-08 12:17:09 +00:00
Nick Craig-Wood
50344e7792 accounting: factor --tpslimit code into accounting from fshttp 2021-01-08 10:29:57 +00:00
Nick Craig-Wood
dd67a3d5f5 operations: add size if known to skipped items and JSON log - fixes #4624 2021-01-05 19:44:25 +00:00
Nick Craig-Wood
e972f2c98a log: make it easier to add parameters to JSON logging 2021-01-05 19:44:25 +00:00
Nick Craig-Wood
35da38e93f operations: fix --immutable error message
This was accidentally changed in

53a1a0e3ef accounting: add reference to completed transfers
2020-12-31 18:16:51 +00:00
Nick Craig-Wood
963c0f28b9 sync: Only print "There was nothing to transfer" if no errors
See: https://forum.rclone.org/t/immutable-should-set-retries-1-when-source-and-dest-are-different/21326
2020-12-31 18:16:51 +00:00
Nick Craig-Wood
b3815dc0c2 sync: fix --immutable errors retrying many times
See: https://forum.rclone.org/t/immutable-should-set-retries-1-when-source-and-dest-are-different/21326
2020-12-31 18:16:51 +00:00
Nick Craig-Wood
8053fc4e16 fs: correct default implementation of fs.CountError 2020-12-31 18:16:51 +00:00
Nick Craig-Wood
f425950a52 fs: Always show stats when using --dry-run or --interactive #4624 2020-12-29 21:11:12 +00:00
Ingo Weiss
1d40bc1901 fs: Accumulate stats when using --dry-run
Fixes #4624
2020-12-29 21:11:12 +00:00
Benjamin Gustin
4d54454900
fs/log: don't compile systemd log integration for non unix systems 2020-12-28 23:07:12 +00:00
Nick Craig-Wood
060642ad14 flags: improve error message when reading environment vars #4888
The message now includes the flag name to help the user work out what
is happening.

    Invalid value for environment variable "RCLONE_VERSION" when setting default
    for --version: strconv.ParseBool: parsing "yes": invalid syntax
2020-12-28 12:26:23 +00:00
lostheli
c8cfa43ccc Add a download flag to hashsum and related commands to force rclone to download and hash files locally
This commit modifies the operations.hashSum function by adding an alternate code path. This code path is triggered by passing downloadFlag = True. When activated, rclone will download files from the remote and hash them locally. downloadFlag = False preserves the existing behavior of using the remote to retrieve the hash.

This commit modifies HashLister to support the new hashSum method as well as consolidating the roles of HashLister, HashListerBase64, Md5sum, and Sha1sum.  The printing of hashes from the function defined in HashLister has been revised to work with --progress.  There are light changes to operations.syncFprintf and cmd.startProgress for this.

The unit test operations_test.TestHashSums is modified to support this change and test the download functionality.

The command functions hashsum, md5sum, sha1sum, and dbhashsum are modified to support this change.  A download flag has been added and an output-file flag has been added.  The output-file flag writes hashes to a file instead of stdout to avoid the need to redirect stdout.
2020-12-27 15:40:44 +00:00
negative0
ed7af3f370 plugins: Create plugins files only if webui is enabled. Fixes #4592. May fix #4600. 2020-12-27 15:05:41 +00:00
Nathan Collins
be19d6a403 fshttp: prevent overlap of HTTP headers in logs 2020-12-27 12:44:46 +00:00
Nick Craig-Wood
ea8d13d841 fs: Fix parsing of .. when joining remotes - Fixes #4862
Before this fix setting an alias of `s3:bucket` then using `alias:..`
would use the current working directory!

This fix corrects the path parsing. This parsing is also used in
wrapping backends like crypt, chunker, union etc.

It does not allow looking above the root of the alias, so `alias:..`
now lists `s3:bucket` as you might expect if you did `cd /` then
`ls ..`.
2020-12-18 13:06:39 +00:00
Nick Craig-Wood
c98dd8755c log: fix enabling systemd logging when using --log-file
This also moves all the systemd logging decisions to fs/log
2020-12-17 11:55:27 +00:00
Nick Craig-Wood
86014cebd7 dedupe: add --dedupe-mode list to just list dupes, changing nothing 2020-12-02 16:52:12 +00:00
Nick Craig-Wood
507f861c67 dedupe: add --by-hash to dedupe on hash not file name - fixes #1674 2020-12-02 16:52:12 +00:00
zhucan
a223b78872 fs: support multi-threads to head dst object
Signed-off-by: zhuc <zhucan.k8s@gmail.com>
2020-12-02 16:26:37 +00:00
Nick Craig-Wood
584523672c dropbox: test file name length before upload to fix upload loop
Before this change rclone would upload the whole of multipart files
before receiving a message from dropbox that the path was too long.

This change hard codes the 255 rune limit and checks that before
uploading any files.

Fixes #4805
2020-12-01 17:56:36 +00:00
Nick Craig-Wood
47aada16a0 fs: add Shutdown optional method for backends 2020-11-27 17:35:01 +00:00
Nick Craig-Wood
c22d04aa30 filter: deglobalise to put filter config into the context #4685 2020-11-27 17:28:42 +00:00
Nick Craig-Wood
354b4f19ec rc: add context to flag Reload function #4685 2020-11-27 17:28:42 +00:00
Maciej Zimnoch
70e8b11805
accounting: fix data race in Transferred()
startedTransfers is accessed by multiple threads, and it wasn't
protected by the mutex call in Transferred() func.

Fixes #4799
2020-11-26 22:54:38 +00:00
Nick Craig-Wood
9d574c0d63 fshttp: read config from ctx not passed in ConfigInfo #4685 2020-11-26 16:40:12 +00:00
Nick Craig-Wood
2e21c58e6a fs: deglobalise the config #4685
This is done by making fs.Config private and attaching it to the
context instead.

The Config should be obtained with fs.GetConfig and fs.AddConfig
should be used to get a new mutable config that can be changed.
2020-11-26 16:40:12 +00:00
Ankur Gupta
33ea55efed
fs: parseduration: fixed tests to use UTC time 2020-11-23 17:11:56 +00:00
buengese
2812816142 hash: add MultiHasher.Sum() to retrieve a single specific hash 2020-11-13 02:31:59 +01:00
Nick Craig-Wood
f7efce594b config: add context.Context #3257 #4685
This add config to the Config callback in the backends and the related
config functions.
2020-11-09 18:05:54 +00:00
Nick Craig-Wood
1fb6ad700f accounting: add context.Context #3257 #4685 2020-11-09 18:05:54 +00:00
Nick Craig-Wood
e3fe31f7cb fs: add context.Context to fs.GetModifyWindow #3257 #4685 2020-11-09 18:05:54 +00:00
Nick Craig-Wood
8b96933e58 fs: Add context to fs.Features.Fill & fs.Features.Mask #3257 #4685 2020-11-09 18:05:54 +00:00
Nick Craig-Wood
d69b96a94c test: Add context to mockfs.NewFs #3257 #4685 2020-11-09 18:05:54 +00:00
Nick Craig-Wood
d846210978 fs: Add context to NewFs #3257 #4685
This adds a context.Context parameter to NewFs and related calls.

This is necessary as part of reading config from the context -
backends need to be able to read the global config.
2020-11-09 18:05:54 +00:00
Anagh Kumar Baranwal
30c8b1b84f
fs: Fix nil pointer on copy & move operations directly to remote
Fix the copy and move operations that broke in 127f0fc when copying directly
to a remote without a specific destination.

Signed-off-by: Anagh Kumar Baranwal <6824881+darthShadow@users.noreply.github.com>
2020-11-09 12:36:10 +00:00
Nick Craig-Wood
af55a74bd2 stats: add counter for deleted directories - fixes #4676 2020-11-03 11:47:00 +00:00
Nick Craig-Wood
d00c126cef operations: fix --cutof-mode hard not cutting off immediately
This failure was noted on the integration tests server.

The fix was to be more careful about which error message was emitted
with which --cutoff-mode
2020-11-02 17:13:19 +00:00
Adam Plánský
127f0fc64c operations: move and copy log name of the destination object in verbose
If the object is moved or copied rclone in verbose mode prints name of the
destination object into the info log.
2020-10-30 15:31:54 +00:00
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
e4a87f772f docs: spelling: e.g.
Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-10-28 18:16:23 +00:00
Josh Soref
bbe7eb35f1 docs: spelling: server-side
Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-10-28 18:16:23 +00:00
Nick Craig-Wood
4e2b5389d7 check: make the error count match up in the log message
Before this change we counted the final summary error as an error,
producing confusing log messages like:

    Failed to check with 54 errors: last error was: 53 differences found

This change marks the summary error as already being counted, so the
error message becomes:

    Failed to check with 53 errors: last error was: 53 differences found

This change also returns a listing failure in preference to a summary error.

See: https://forum.rclone.org/t/slow-checksum-validation/19763/22
2020-10-15 12:57:48 +01:00
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
51a230d7fd fs: Implement UnWrapObjectInfo for getting original object out of src objects 2020-10-14 15:20:06 +01:00
Nick Craig-Wood
72083c65ad cmd: make backend env vars show in help as the defaults for backend flags
Before this change

    RCLONE_DRIVE_CHUNK_SIZE=111M rclone help flags | grep drive-chunk-size

Would show the default value, not the setting of RCLONE_DRIVE_CHUNK_SIZE
as the non backend flags do.

This change makes it work as expected by setting the default of the
option to the environment variable.

Fixes #4659
2020-10-13 15:43:58 +01:00
LaSombra
aac2406e19
cmd: add --progress-terminal-title to print ETA to terminal title
Adds a flag, --progress-terminal-title, that when used with --progress,
will print the string `ETA: %s` to the terminal title.

This also adds WriteTerminalTitle to lib/terminal
2020-10-06 16:34:26 +01:00
Hekmon
c58023a9ba enhance systemd integration
* log level identification
* manual activation with flag
* automatic systemd launch detection
2020-10-06 16:21:30 +01:00
Nick Craig-Wood
20b00db390 operations: fix spurious "--checksum is in use but the source and destination have no hashes in common"
Before this change rclone would emit the message

    --checksum is in use but the source and destination have no hashes in common; falling back to --size-only

When the source or destination hash was missing as well as when the
source and destination had no hashes in common.

This first case is very confusing for users when the source and
destination do have a hash in common.

This change fixes that and makes sure the error message is not emitted
on missing hashes even when there is a hash in common.

See: https://forum.rclone.org/t/source-and-destination-have-no-hashes-in-common-for-unencrypted-drive-to-local-sync/19531
2020-10-05 16:07:05 +01:00
Nick Craig-Wood
db4bbf9521 operations: fix use of --suffix without --backup-dir
As part of the original work adding this feature it was overlooked
that this didn't actually work for full rclone copy/sync.

This commit fixes the problem and adds a test to make sure it stays
working.

See: https://forum.rclone.org/t/suffix-not-working-on-folder-upload-via-ssh-sftp/19526
2020-10-04 16:40:20 +01:00
Nick Craig-Wood
2b7994e739 operations: add logs when need to upload files to set mod times #1505 2020-09-29 17:04:29 +01:00
Nick Craig-Wood
433b73a5a8 accounting: stabilize display order of transfers on Windows
Before this change we sorted transfers in the stats list solely on
time started. However if --check-first was in use then lots of
transfers could be started in the same millisecond. Because Windows
time resolution is only 1mS this caused the entries to sort equal and
bounce around in the list.

This change fixes the sort so that if the time is equal it uses the
name which should stabilize the order.

Fixes #4599
2020-09-24 19:10:37 +01:00
Nick Craig-Wood
5c49096e11 acounting: fix incorrect speed and transferTime in core/stats
Before this change the code which summed up the existing transfers
over all the stats groups forgot to add the old transfer time and old
transfers in.

This meant that the speed and elapsedTime got increasingly inaccurate
over time due to the transfers being culled from the list but their
time not being accounted for.

This change adds the old transfers into the sum which fixes the
problem.

This was only a problem over the rc.

Fixes #4569
2020-09-15 12:01:18 +01:00
Nick Craig-Wood
75de30cfa8 sync: fix --cutoff-mode soft & cautious so it doesn't end the transfer early
Before ths fix --cutoff-mode soft and cautious would emit a Fatal
error which stopped the sync immediately.

This fix introduces a new error which is checked in the sync error
processing which stops the sync gracefully.

Fixes #4576
2020-09-09 12:53:21 +01:00
Nick Craig-Wood
05bea46c3e accounting: remove new line from end of --stats-one-line display 2020-09-08 16:10:52 +01:00
Chaitanya Bankanhal
c8a719ae0d webui: Prompt user for updating webui if an update is available 2020-09-07 16:45:00 +01:00
Nick Craig-Wood
344bce7e2a docs: fix formatting of rc docs page
See: https://forum.rclone.org/t/rclone-1-53-release/18880/24
2020-09-03 11:53:24 +01:00
Nick Craig-Wood
41ecb586c4 Start v1.54.0-DEV development 2020-09-02 17:52:58 +01:00
Nick Craig-Wood
70c8566cb8 fs: Pin created backends until parents are finalized
This attempts to solve the backend lifecycle problem by

- Pinning backends mentioned on the command line into the cache
  indefinitely

- Unpinning backends when the containing structure (VFS, wrapping
  backend) is destroyed

See: https://forum.rclone.org/t/rclone-rc-backend-command-not-working-as-expected/18834
2020-09-01 18:21:03 +01:00
Nick Craig-Wood
3affc2e066 fspath: make JoinRootPath convert backslashes to slashes on Windows
The function is used for contructing remotes which may have
backslashes in on Windows.
2020-09-01 18:21:03 +01:00
Nick Craig-Wood
c31defbbd3 fs: add debug to show when a backend is being created
See: https://forum.rclone.org/t/rclone-rc-backend-command-not-working-as-expected/18834/
2020-08-31 14:51:06 +01:00
Nick Craig-Wood
75d54d720c version: replace internal code with github.com/coreos/go-semver
We were already importing go-semver so it makes sense to remove the
duplicated semver parsing code and just use go-semver
2020-08-31 13:55:04 +01:00
Nick Craig-Wood
cc0421cb9e rc/webgui: skip AddPlugin and RemovePlugin tests if download fails 2020-08-31 13:45:06 +01:00
Nick Craig-Wood
9c01ac9894 rc/webgui: improve error handling on web fetches 2020-08-31 13:45:06 +01:00
Chaitanya Bankanhal
20300d1f61 plugins: Change failing plugin test to new repo rclone/rclone-test-plugin 2020-08-31 13:45:06 +01:00
Chaitanya Bankanhal
6231beefc5 webui: Fix broken webui because of plugins redirection 2020-08-31 13:45:06 +01:00
Aaron Gokaslan
bf685f600e webgui: fixes previously unhandled error in JSON marshall in fs/rc/webgui/plugins.go:writeToFile 2020-08-30 17:15:03 +01:00
Leo Luan
c665201b85 vfs: support synchronous cache space recovery upon ENOSPC
This patch provides the support of synchronous cache space recovery
to allow read threads to recover from ENOSPC errors when cache space
can be recovered from cache items that are not in use or safe to be
reset/emptied .

The patch complements the existing cache cleaning process in two ways.

Firstly, the existing cache cleaning process is time-driven that runs
periodically. The cache space can run out while the cache cleaner
thread is still waiting for its next scheduled run. The io threads
encountering ENOSPC return an internal error to the applications
in this case even when cache space can be recovered to avoid this
error. This patch addresses this problem by having the read threads
kick the cache cleaner thread in this condition to recover cache
space preventing unnecessary ENOSPC errors from being seen by the
applications.

Secondly, this patch enhances the cache cleaner to support cache
item reset. Currently the cache purge process removes cache
items that are not in use. This may not be sufficient when the
total size of the working set exceeds the cache directory's
capacity. Like in the current code, this patch starts the purge
process by removing cache files that are not in use. Cache items
whose access times are older than vfs-cache-max-age are removed first.
After that, other not-in-use items are removed in LRU order until
vfs-cache-max-size is reached. If the vfs-cache-max-size (the quota)
is still not reached at this time, this patch adds a cache reset
step to reset/empty cache files that are still in use but not
dirtied.  This enables application processes to continue without
seeing an error even when the working set depletes the cache space
as long as there is not a large write working set hoarding the
entire cache space.

By design this patch does not add ENOSPC error recovery for write
IOs. Rclone does not empty a write cache item until the file data
is written back to the backend upon close. Allowing more cache
space to be consumed by dirty cache items when the cache space is
already running low would increase the risk of exhausting the cache
space in a way that the vfs mount becomes unreadable.
2020-08-25 21:12:06 +01:00