The SIGUSR2 signal handler for bandwidth limits currently only starts
if rclone is started at a time when a bandwidth limit applies. This
means that if rclone starts _outside_ such a time, i.e. with no
bandwidth limits, then enters a time where bandwidth limits do apply,
it will not be possible to use SIGUSR2 to toggle it.
This fixes that by always starting the signal handler, but only
toggling the limiter if there is a bandwidth limit configured.
In 04aa6969a4 we updated the displayed speed to be a rolling
average in core/stats and the progress output but we didn't update the
Prometheus metrics.
This patch updates the Prometheus metrics too.
Fixes#7053
Before this change if doing a recursive directory listing with
`--files-from` if more than `--checkers` files errored (other than
file not found) then rclone would deadlock.
This fixes the problem by exiting on the first error.
Before this change partially uploaded files (when --inplace is not in
effect) would be left lying around in the file system if rclone was
killed in the middle of a transfer.
This adds an exit handler to remove the file and removes it when the
file is complete.
Before this change, some parts of operations called the Open method on
objects directly, and some called NewReOpen to make an object which
can re-open itself on errors.
This adds a new function operations.Open which should be called
instead of fs.Object.Open to open a reliable stream of data and
changes all call sites to use that.
This means `rclone check --download` and `rclone cat` will re-open
files on failures.
See: https://forum.rclone.org/t/does-rclone-support-retries-for-check-when-using-download-flag/38641
Before this change we tested special errors for straight equality.
This works for all normal backends, but the union backend may return
wrapped errors which contain the special error types.
In particular if a pcloud backend was part of a union when attempting
to set modification times the fs.ErrorCantSetModTime return wasn't
understood because it was wrapped in a union.Error.
This fixes the problem by using errors.Is instead in all the
comparisons in operations.
See: https://forum.rclone.org/t/failed-to-set-modification-time-1-error-pcloud-cant-set-modified-time/38596
Set this automatically for any backend which implements UnWrap and
manually for combine and union which can't implement UnWrap but do
overlay other backends.
When copying to a backend which has the PartialUploads feature flag
set and can Move files the file is copied into a temporary name first.
Once the copy is complete, the file is renamed to the real
destination.
This prevents other processes from seeing partially downloaded copies
of files being downloaded and prevents overwriting the old file until
the new one is complete.
This also adds --inplace flag that can be used to disable the partial
file copy/rename feature.
See #3770
Co-authored-by: Nick Craig-Wood <nick@craig-wood.com>
Implement a Partialuploads feature flag to mark backends for which
uploads are not atomic.
This is set for the following backends
- local
- ftp
- sftp
See #3770
Before this patch, files or directories with unknown modtime would
appear as the current date.
When mounted some systems look at modification dates of directories to
see if they change and having them change whenever they drop out of
the directory cache is not optimal.
See #6986
Before this change we renamed file systems with overridden config with
{suffix}.
However this meant that ConfigString produced a value which wouldn't
re-create the file system.
This uses an internal hash to keep note of what config goes which
which {suffix} in order to remake the config properly.
When using `rclone cat` to print the contents of several files, the
user may want to inject some separator between the files, such as a
comma or a newline. This patch adds a `--separator` option to the `cat`
command to make that possible. The default value remains an empty
string, `""`, maintaining the prior behavior of `rclone cat`.
Closes#6968
Before this change we weren't outputing a debug log on the start of a
transfer for files which existed on the source but not in the
destination.
This was different to the single file copy routine.
If a file has two (or more) extensions and the second (or subsequent)
extension is recognised as a valid mime type, then the suffix will go
before that extension. So `file.tar.gz` would be backed up to
`file-2019-01-01.tar.gz` whereas `file.badextension.gz` would be
backed up to `file.badextension-2019-01-01.gz`
Fixes#6892
In this commit we accidentally removed the global --rc flags.
0df7466d2b cmd/rcd: Fix command docs to include command specific prefix (#6675)
This re-instates them.
Before this change using operations/stat with a remote pointing to a
dir with a trailing / would return a null output rather than the
correct info.
This was because the directory was not found with a trailing slash in
the directory listing.
Fixes#6817
Before this change if both --progress and --interactive were set then
the screen display could become muddled.
This change makes --progress and --interactive use the same lock so
while rclone is asking for interactive questions, the progress will be
paused.
Fixes#6755
This change addresses two issues with commands that re-used
flags from common packages:
1) cobra.Command definitions did not include the command specific
prefix in doc strings.
2) Command specific flag prefixes were added after generating
command doc strings.
The recent changes to remove race conditions from --max-delete have
made these tests fail on chunker with s3 because they do copy then
delete and the deletes are being counted in the --max-delete(-size)
counts.
If using rclone move and --check-first and --order-by then rclone uses
the transfer routine to delete files to ensure perfect ordering.
This will cause the transfer stats to have a larger than expected
number of items in it so we don't enable this by default.
Fixes#6033
There were some places (e.g. deleting files) where we were using
--transfers instead of --checkers to control the concurrency when
files weren't being transferred.
These have been updated to use --checkers.
Before this change, all types of checkers showed "checking" after the
file name despite the fact that not all of them were checking.
After this change, they can show
- checking
- deleting
- hashing
- importing
- listing
- merging
- moving
- renaming
See: https://forum.rclone.org/t/what-is-rclone-checking-during-a-purge/35931/
No need to report hours, minutes, and even seconds when the
ETA is several years, e.g. "292y24w3d23h47m16s". Now only
reports the 3 most significant units, sacrificing precision,
e.g. "292y24w3d", "24w3d23h", "3d23h47m", "23h47m16s".
Fixes#6381
Integer overflow would lead to ETA such as "-255y7w4h11m22s966ms",
as reported in #6381. Now the value will be clipped at the maximum
"292y24w3d23h47m16s", and it will be shown as infinity.
Previously it was limited to plain ASCII (0-9, A-Z, a-z).
Implemented by adding \p{L}\p{N} alongside the \w in the regex,
even though these overlap it means we can be sure it is 100%
backwards compatible.
Fixes#6618
The BSD-style license that Go uses requires the license to be included
with the source distribution; so add it as LICENSE.wasmexec (to avoid
confusion with the other licenses in rclone) and note the location of
the license in wasm_exec.js itself.
* fs: add TerminalColorMode type
* fs: add new config(flags) for TerminalColorMode
* lib/terminal: use TerminalColorMode to determine how to handle colors
* Add documentation for '--terminal-color-mode'
* tree: remove obsolete --color replaced by global --color
This changes the default behaviour of tree. It now displays colors by
default instead of only displaying them when the flag -C/--color was
active. Old behaviour (no color) can be achieved by setting --color to
'never'.
Fixes: #6604
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
Solves link error while running rclone's wasm version. Go's `walltime1` function was renamed to `walltime`. This commit updates wasm_exec.js with the new name.
A very common mistake for new users of rclone is to use a remote name
without a colon. This can be on the command line or in the config when
setting up a crypt backend.
This change checks to see if the user uses a path which matches a
remote name and gives an NOTICE like this if they do
NOTICE: "remote" refers to a local folder, use "remote:" to refer to your remote or "./remote" to hide this warning
See: https://forum.rclone.org/t/sync-to-onedrive-personal-lands-file-in-localfilesystem-but-not-in-onedrive/32956
In this commit
8d1fff9a82 local: obey file filters in listing to fix errors on excluded files
We started using filters in the local backend so the user could short
circuit troublesome files/directories at a low level.
However this caused a number of integration tests to fail. This turned
out to be in backends wrapping the local backend. For example the
combine backend test failed because it changes the paths passed to the
local backend so they no longer match the paths in the current filter.
To fix this, a new feature flag `FilterAware` was added and the
UseFilter context flag is only passed to backends which support it. As
the wrapping backends don't support the flag, this fixes the problems
in the integration tests.
In future the wrapping backends could modify the active filters to
match the path modifications and then they could set the FilterAware
flag.
See #6376
Before this change we assumed that github.com/Unknwon/goconfig was
threadsafe as documented.
However it turns out it is not threadsafe and looking at the code it
appears that making it threadsafe might be quite hard.
So this change increases the lock coverage in configfile to cover the
goconfig uses also.
Fixes#6378
Before this fix, the chunksize calculator was using the previous size
of the object, not the new size of the object to calculate the chunk
sizes.
This meant that uploading a replacement object which needed a new
chunk size would fail, using too many parts.
This fix fixes the calculator to take the size explicitly.
Before this fix, the parsing code gave an error like this
parsing "2022-08-02 07:00:00" as fs.Time failed: expected newline
This was due to the Scan call failing to read all the data.
This patch fixes that, and redoes the tests
Before this change --compare-dest and --copy-dest would check to see
if the compare/copy object existed first, before seeing if the
destination object was present.
This is inefficient, because in most --copy-dest syncs the destination
will be present and the compare/copy object need never be tested.
--compare-dest syncs may also be speeded up if they are done to the
same directory repeatedly.
This fixes the problem by re-arranging the logic so if the transfer is
not needed then the compare/copy object is never tested.
See: https://forum.rclone.org/t/union-with-copy-dest-enabled-is-slower-than-expected/32172
strings.Title has been deprecated since Go 1.18 and an alternative has been
available since Go 1.0. The rule Title uses for word boundaries does not handle
Unicode punctuation properly. Use golang.org/x/text/cases instead.
Most of the time this will make no difference to user logs, however
the difference may be visible in JSON logs and on the rare occasions
src and dst are pointing to different file names.
This change ensures we call the Shutdown method on backends when
they drop out of the fs/cache and at program exit.
Some backends implement the optional fs.Shutdowner interface. Until now,
Shutdown is only checked and called, when a backend is wrapped (e.g.
crypt, compress, ...).
To have a general way to perform operations at the end of the backend
lifecycle with proper error handling, we can call Shutdown at cache
clear time.
We add a finalize hook to the cache which will be called when values
drop out of the cache.
Previous discussion: https://forum.rclone.org/t/31336
This was caused by nested calls to NewTransfer/Done.
This fixes the problem by only incrementing transfers if the remote is
present in the transferMap which means we only increment it once.
Before this change using --max-duration and --cutoff-mode soft would
work like --cutoff-mode hard.
This bug was introduced in this commit which made transfers be
cancelable - before that transfers couldn't be canceled.
122a47fba6 accounting: Allow transfers to be canceled with context #3257
This change adds the timeout to the input context for reading files
rather than the transfer context so the files transfers themselves
aren't canceled if --cutoff-mode soft is in action.
This also adds a test for cutoff mode soft and max duration which was
missing.
See: https://forum.rclone.org/t/max-duration-and-retries-not-working-correctly/27738
In commit
3ccf222acb sync: overlap check is now filter-sensitive
The tests were attempting to write invalid objects on some backends
due to a leading / on the object name.
This fix also adds a few more test cases and makes sure the tests can
be run individually.
In commit
da404dc0f2 sync,copy: Fix --fast-list --create-empty-src-dirs and --exclude
The fix caused DirTree.AddDir to be called with the root directory.
This in turn caused a spurious directory entry in the DirTree which
caused tests with the -fast-list flag to fail with directory not found
errors.
Differentiate output of 'config show remote' command from listing options as part
of interactive config process for consistency: 'config show remote' consistent with
'config show', while listing in interactive config consistent with other output.
See #6211
Previously, the overlap check was based on simple prefix checks of the source and destination paths. Now it actually checks whether the destination is excluded via any filter rule or a "--exclude-if-present"-file.
Before this change, if --fast-list was in use while doing a sync or
copy with --create-empty-src-dirs and --exclude excluded all the files
from the directory (but not the directory), then the directory would
not be created.
This is also visible with `rclone tree` which uses the same tree
building approach as `rclone sync --fast-list` where the directories
would go missing from the tree view.
This was caused by not adding the parents of excluded files to the
directory tree.
See: https://forum.rclone.org/t/create-empty-src-dirs-issue-with-b2/30856
strings.ReplaceAll(s, old, new) is a wrapper function for
strings.Replace(s, old, new, -1). But strings.ReplaceAll is more
readable and removes the hardcoded -1.
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
Cloudflare R2 doesn't support range options like `Range: bytes=21-`.
This patch makes FixRangeOption turn a SeekOption into an absolute
RangeOption like this `Range: bytes=21-25` to interoperate with R2.
See: #5642
Before this change FixRangeOption was leaving `Range: bytes=21-`
alone, thus not fulfilling its contract of making Range requests
absolute.
As it happens this form isn't supported by Cloudflare R2.
After this change the request is normalised to `Range: bytes=21-25`.
See: #5642
Similar to fs.Duration but parses into a timestamp instead
Supports parsing from:
* Any of the date formats in parseTimeDates
* A time.Duration offset from now
* parseDurationSuffixes offset from now
When this code was originally implemented os.UserCacheDir wasn't
public so this used a copy of the code. This commit replaces that now
out of date copy with a call to the now public stdlib function.
golang.org/x/crypto/ssh/terminal is deprecated in favor of
golang.org/x/term, see https://pkg.go.dev/golang.org/x/crypto/ssh/terminal
The latter also supports ReadPassword on solaris, so enable the
respective functionality in fs/config for solaris as well.
Before this change if the timezone was omitted in a
--min-age/--max-age time specifier then rclone defaulted to a UTC
timezone.
This is documented as using the local timezone if the time zone
specifier is omitted which is a much more useful default and this
patch corrects the implementation to agree with the documentation.
See: https://forum.rclone.org/t/problem-utc-windows-europe-1-summer-problem/29917
There has been a desire from more advanced rclone users to have regexp
filtering as well as the glob filtering.
This patch adds regexp filtering using this syntax `{{ regexp }}`
which is currently a syntax error, so is backwards compatibile.
This means regexps can be used everywhere globs can be used, and that
they also can be mixed with globs in the same pattern, eg `*.{{jpe?g}}`
Before this change, if the --max-duration limit was reached then
rclone would retry the sync as a fatal error wasn't raised.
This checks the deadline and raises a fatal error if necessary at the
end of the sync.
Fixes#6002
This allows a backend to have multiple aliases. These aliases are
hidden from `rclone config` and the command line flags are hidden from
the user. However the flags, environment varialbes and config for the
alias will work just fine.
The directory created by `T.TempDir` is automatically removed when the
test and all its subtests complete.
Reference: https://pkg.go.dev/testing#T.TempDir
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
Previously an empty input (just pressing enter) was only allowed for multiple-choice
options that did not have the Exclusive property set. With this change the existing
Required property is introduced into the multiple choice handling, so that one can have
Exclusive and Required options where only a value from the list is allowed, and one can
have Exclusive but not Required options where an empty value is accepted but any
non-empty value must still be matching an item from the list.
Fixes#5549
See #5551
This patch adds rclone_http_status_code counter vector labeled by
* host,
* method,
* code.
It allows to see HTTP errors, backoffs etc.
The Metrics struct is designed for extensibility.
Adding new metrics is a matter of adding them to Metrics struct and including them in the response handling.
This feature has been discussed in the forum [1].
[1] https://forum.rclone.org/t/prometheus-metrics/14484
Whenever transfer.Account() is called, a new goroutine acc.averageLoop()
is started. This goroutine exits only when the channel acc.exit is closed.
acc.exit is closed when acc.Done() is called, which happens during tr.Done().
However, if tr.Reset is called during a copy low level retry, it replaces
the tr.acc, without calling acc.Done(), which results in the goroutine
mentioned above never exiting.
This commit calls acc.Done() during a tr.Reset()
This was necessary because go1.14 seems to have a modules related bug
which means it tries to build modules even though the uses of them are
all disabled with build constraints. This seems to be fixed in go1.15.
Previously only the fs being checked on gets passed to
GetModifyWindow(). However, in most tests, the test files are
generated in the local fs and transferred to the remote fs. So the
local fs time precision has to be taken into account.
This meant that on Windows the time tests failed because the
local fs has a time precision of 100ns. Checking remote items uploaded
from local fs on Windows also requires a modify window of 100ns.
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.
The test is not applicable to uptobox which can't upload empty files.
The test was not skipped as intended because the direct error was compared.
This fix will compare error Cause because Sync wraps the error.
This was caused by
7a1cab57b6 cmd/hashsum: dont put ERROR or UNSUPPORTED in output
And was picked up in the integration tests.
This patch no longer calls the HashLister for unsupported hash types.
This changes the interface to NewObject so that if NewObject is called
on a directory then it should return fs.ErrorIsDir if possible without
doing any extra work, otherwise fs.ErrorObjectNotFound.
Tested on integration test server with:
go run integration-test.go -tests backend -run TestIntegration/FsMkdir/FsPutFiles/FsNewObjectDir -branch fix-stat -maxtries 1
Google Drive API allows for clauses like "modifiedTime > '2012-06-04T12:00:00'"
in the query param, so the filter flags --max-age and --min-age can be applied
directly at the directory listing phase rather than in a filter.
This is extremely helpful when we want to do an incremental backup of a remote
drive with many files but the number of recently changed file is small.
Co-authored-by: fotile96 <fotile96@users.noreply.github.com>
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
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.
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
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
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
```
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.
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.
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.
- 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#5071Fixes#4841
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.
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.
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.
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#5236Fixes#5228
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
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
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.
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
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.
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.
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.
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.
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
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
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:
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.
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.
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.
