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docs: factor large docs into separate .md files to make them easier to maintain.

Browse Source 
We then use the go embed command to embed them back into the binary.
This commit is contained in:
Nick Craig-Wood 2023-10-05 15:32:50 +01:00
parent e67157cf46
commit 831d1df67f
8 changed files with 164 additions and 178 deletions
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6
cmd/mountlib/mount.go
View File

@ -3,6 +3,7 @@ package mountlib
import (
"context"
_ "embed"
"fmt"
"log"
"os"
@ -27,6 +28,9 @@ import (
"github.com/spf13/pflag"
)
//go:embed mount.md
var mountHelp string
// Options for creating the mount
type Options struct {
DebugFUSE bool
@ -158,7 +162,7 @@ func NewMountCommand(commandName string, hidden bool, mount MountFn) *cobra.Comm
Use: commandName + " remote:path /path/to/mountpoint",
Hidden: hidden,
Short: `Mount the remote as file system on a mountpoint.`,
Long: strings.ReplaceAll(strings.ReplaceAll(mountHelp, "|", "`"), "@", commandName) + vfs.Help,
Long: strings.ReplaceAll(mountHelp, "@", commandName) + vfs.Help,
Annotations: map[string]string{
"versionIntroduced": "v1.33",
"groups": "Filter",

155
cmd/mountlib/help.go → cmd/mountlib/mount.md
View File

@ -1,15 +1,11 @@
package mountlib
// "@" will be replaced by the command name, "|" will be replaced by backticks
var mountHelp = `
rclone @ allows Linux, FreeBSD, macOS and Windows to
mount any of Rclone's cloud storage systems as a file system with
FUSE.
First set up your remote using |rclone config|. Check it works with |rclone ls| etc.
First set up your remote using `rclone config`. Check it works with `rclone ls` etc.
On Linux and macOS, you can run mount in either foreground or background (aka
daemon) mode. Mount runs in foreground mode by default. Use the |--daemon| flag
daemon) mode. Mount runs in foreground mode by default. Use the `--daemon` flag
to force background mode. On Windows you can run mount in foreground only,
the flag is ignored.
@ -18,7 +14,7 @@ program starts, spawns background rclone process to setup and maintain the
mount, waits until success or timeout and exits with appropriate code
(killing the child process if it fails).
On Linux/macOS/FreeBSD start the mount like this, where |/path/to/local/mount|
On Linux/macOS/FreeBSD start the mount like this, where `/path/to/local/mount`
is an **empty** **existing** directory:
rclone @ remote:path/to/files /path/to/local/mount
@ -29,10 +25,10 @@ rclone will serve the mount and occupy the console so another window should be
used to work with the mount until rclone is interrupted e.g. by pressing Ctrl-C.
The following examples will mount to an automatically assigned drive,
to specific drive letter |X:|, to path |C:\path\parent\mount|
to specific drive letter `X:`, to path `C:\path\parent\mount`
(where parent directory or drive must exist, and mount must **not** exist,
and is not supported when [mounting as a network drive](#mounting-modes-on-windows)), and
the last example will mount as network share |\\cloud\remote| and map it to an
the last example will mount as network share `\\cloud\remote` and map it to an
automatically assigned drive:
rclone @ remote:path/to/files *
@ -89,7 +85,7 @@ as a network drive instead.
When mounting as a fixed disk drive you can either mount to an unused drive letter,
or to a path representing a **nonexistent** subdirectory of an **existing** parent
directory or drive. Using the special value |*| will tell rclone to
directory or drive. Using the special value `*` will tell rclone to
automatically assign the next available drive letter, starting with Z: and moving backward.
Examples:
@ -98,45 +94,45 @@ Examples:
rclone @ remote:path/to/files C:\path\parent\mount
rclone @ remote:path/to/files X:
Option |--volname| can be used to set a custom volume name for the mounted
Option `--volname` can be used to set a custom volume name for the mounted
file system. The default is to use the remote name and path.
To mount as network drive, you can add option |--network-mode|
To mount as network drive, you can add option `--network-mode`
to your @ command. Mounting to a directory path is not supported in
this mode, it is a limitation Windows imposes on junctions, so the remote must always
be mounted to a drive letter.
rclone @ remote:path/to/files X: --network-mode
A volume name specified with |--volname| will be used to create the network share path.
A complete UNC path, such as |\\cloud\remote|, optionally with path
|\\cloud\remote\madeup\path|, will be used as is. Any other
string will be used as the share part, after a default prefix |\\server\|.
If no volume name is specified then |\\server\share| will be used.
A volume name specified with `--volname` will be used to create the network share path.
A complete UNC path, such as `\\cloud\remote`, optionally with path
`\\cloud\remote\madeup\path`, will be used as is. Any other
string will be used as the share part, after a default prefix `\\server\`.
If no volume name is specified then `\\server\share` will be used.
You must make sure the volume name is unique when you are mounting more than one drive,
or else the mount command will fail. The share name will treated as the volume label for
the mapped drive, shown in Windows Explorer etc, while the complete
|\\server\share| will be reported as the remote UNC path by
|net use| etc, just like a normal network drive mapping.
`\\server\share` will be reported as the remote UNC path by
`net use` etc, just like a normal network drive mapping.
If you specify a full network share UNC path with |--volname|, this will implicitly
set the |--network-mode| option, so the following two examples have same result:
If you specify a full network share UNC path with `--volname`, this will implicitly
set the `--network-mode` option, so the following two examples have same result:
rclone @ remote:path/to/files X: --network-mode
rclone @ remote:path/to/files X: --volname \\server\share
You may also specify the network share UNC path as the mountpoint itself. Then rclone
will automatically assign a drive letter, same as with |*| and use that as
will automatically assign a drive letter, same as with `*` and use that as
mountpoint, and instead use the UNC path specified as the volume name, as if it were
specified with the |--volname| option. This will also implicitly set
the |--network-mode| option. This means the following two examples have same result:
specified with the `--volname` option. This will also implicitly set
the `--network-mode` option. This means the following two examples have same result:
rclone @ remote:path/to/files \\cloud\remote
rclone @ remote:path/to/files * --volname \\cloud\remote
There is yet another way to enable network mode, and to set the share path,
and that is to pass the "native" libfuse/WinFsp option directly:
|--fuse-flag --VolumePrefix=\server\share|. Note that the path
`--fuse-flag --VolumePrefix=\server\share`. Note that the path
must be with just a single backslash prefix in this case.
@ -157,15 +153,15 @@ representing permissions for the POSIX permission scopes: Owner, group and other
By default, the owner and group will be taken from the current user, and the built-in
group "Everyone" will be used to represent others. The user/group can be customized
with FUSE options "UserName" and "GroupName",
e.g. |-o UserName=user123 -o GroupName="Authenticated Users"|.
e.g. `-o UserName=user123 -o GroupName="Authenticated Users"`.
The permissions on each entry will be set according to [options](#options)
|--dir-perms| and |--file-perms|, which takes a value in traditional Unix
`--dir-perms` and `--file-perms`, which takes a value in traditional Unix
[numeric notation](https://en.wikipedia.org/wiki/File-system_permissions#Numeric_notation).
The default permissions corresponds to |--file-perms 0666 --dir-perms 0777|,
The default permissions corresponds to `--file-perms 0666 --dir-perms 0777`,
i.e. read and write permissions to everyone. This means you will not be able
to start any programs from the mount. To be able to do that you must add
execute permissions, e.g. |--file-perms 0777 --dir-perms 0777| to add it
execute permissions, e.g. `--file-perms 0777 --dir-perms 0777` to add it
to everyone. If the program needs to write files, chances are you will
have to enable [VFS File Caching](#vfs-file-caching) as well (see also
[limitations](#limitations)). Note that the default write permission have
@ -193,12 +189,12 @@ will be added automatically for compatibility with Unix. Some example use
cases will following.
If you set POSIX permissions for only allowing access to the owner,
using |--file-perms 0600 --dir-perms 0700|, the user group and the built-in
using `--file-perms 0600 --dir-perms 0700`, the user group and the built-in
"Everyone" group will still be given some special permissions, as described
above. Some programs may then (incorrectly) interpret this as the file being
accessible by everyone, for example an SSH client may warn about "unprotected
private key file". You can work around this by specifying
|-o FileSecurity="D:P(A;;FA;;;OW)"|, which sets file all access (FA) to the
`-o FileSecurity="D:P(A;;FA;;;OW)"`, which sets file all access (FA) to the
owner (OW), and nothing else.
When setting write permissions then, except for the owner, this does not
@ -207,11 +203,11 @@ This may prevent applications from writing to files, giving permission denied
error instead. To set working write permissions for the built-in "Everyone"
group, similar to what it gets by default but with the addition of the
"write extended attributes", you can specify
|-o FileSecurity="D:P(A;;FRFW;;;WD)"|, which sets file read (FR) and file
`-o FileSecurity="D:P(A;;FRFW;;;WD)"`, which sets file read (FR) and file
write (FW) to everyone (WD). If file execute (FX) is also needed, then change
to |-o FileSecurity="D:P(A;;FRFWFX;;;WD)"|, or set file all access (FA) to
to `-o FileSecurity="D:P(A;;FRFWFX;;;WD)"`, or set file all access (FA) to
get full access permissions, including delete, with
|-o FileSecurity="D:P(A;;FA;;;WD)"|.
`-o FileSecurity="D:P(A;;FA;;;WD)"`.
#### Windows caveats
@ -235,7 +231,7 @@ It is also possible to make a drive mount available to everyone on the system,
by running the process creating it as the built-in SYSTEM account.
There are several ways to do this: One is to use the command-line
utility [PsExec](https://docs.microsoft.com/en-us/sysinternals/downloads/psexec),
from Microsoft's Sysinternals suite, which has option |-s| to start
from Microsoft's Sysinternals suite, which has option `-s` to start
processes as the SYSTEM account. Another alternative is to run the mount
command from a Windows Scheduled Task, or a Windows Service, configured
to run as the SYSTEM account. A third alternative is to use the
@ -243,7 +239,7 @@ to run as the SYSTEM account. A third alternative is to use the
Read more in the [install documentation](https://rclone.org/install/).
Note that when running rclone as another user, it will not use
the configuration file from your profile unless you tell it to
with the [|--config|](https://rclone.org/docs/#config-config-file) option.
with the [`--config`](https://rclone.org/docs/#config-config-file) option.
Note also that it is now the SYSTEM account that will have the owner
permissions, and other accounts will have permissions according to the
group or others scopes. As mentioned above, these will then not get the
@ -300,21 +296,21 @@ of the file.
Rclone includes flags for unicode normalization with macFUSE that should be updated
for FUSE-T. See [this forum post](https://forum.rclone.org/t/some-unicode-forms-break-mount-on-macos-with-fuse-t/36403)
and [FUSE-T issue #16](https://github.com/macos-fuse-t/fuse-t/issues/16). The following
flag should be added to the |rclone mount| command.
flag should be added to the `rclone mount` command.
-o modules=iconv,from_code=UTF-8,to_code=UTF-8
##### Read Only mounts
When mounting with |--read-only|, attempts to write to files will fail *silently* as
When mounting with `--read-only`, attempts to write to files will fail *silently* as
opposed to with a clear warning as in macFUSE.
### Limitations
Without the use of |--vfs-cache-mode| this can only write files
Without the use of `--vfs-cache-mode` this can only write files
sequentially, it can only seek when reading. This means that many
applications won't work with their files on an rclone mount without
|--vfs-cache-mode writes| or |--vfs-cache-mode full|.
`--vfs-cache-mode writes` or `--vfs-cache-mode full`.
See the [VFS File Caching](#vfs-file-caching) section for more info.
When using NFS mount on macOS, if you don't specify |--vfs-cache-mode|
the mount point will be read-only.
@ -324,9 +320,9 @@ do not support the concept of empty directories, so empty
directories will have a tendency to disappear once they fall out of
the directory cache.
When |rclone mount| is invoked on Unix with |--daemon| flag, the main rclone
When `rclone mount` is invoked on Unix with `--daemon` flag, the main rclone
program will wait for the background mount to become ready or until the timeout
specified by the |--daemon-wait| flag. On Linux it can check mount status using
specified by the `--daemon-wait` flag. On Linux it can check mount status using
ProcFS so the flag in fact sets **maximum** time to wait, while the real wait
can be less. On macOS / BSD the time to wait is constant and the check is
performed only at the end. We advise you to set wait time on macOS reasonably.
@ -344,10 +340,10 @@ for solutions to make @ more reliable.
### Attribute caching
You can use the flag |--attr-timeout| to set the time the kernel caches
You can use the flag `--attr-timeout` to set the time the kernel caches
the attributes (size, modification time, etc.) for directory entries.
The default is |1s| which caches files just long enough to avoid
The default is `1s` which caches files just long enough to avoid
too many callbacks to rclone from the kernel.
In theory 0s should be the correct value for filesystems which can
@ -358,14 +354,14 @@ few problems such as
and [excessive time listing directories](https://github.com/rclone/rclone/issues/2095#issuecomment-371141147).
The kernel can cache the info about a file for the time given by
|--attr-timeout|. You may see corruption if the remote file changes
`--attr-timeout`. You may see corruption if the remote file changes
length during this window. It will show up as either a truncated file
or a file with garbage on the end. With |--attr-timeout 1s| this is
very unlikely but not impossible. The higher you set |--attr-timeout|
or a file with garbage on the end. With `--attr-timeout 1s` this is
very unlikely but not impossible. The higher you set `--attr-timeout`
the more likely it is. The default setting of "1s" is the lowest
setting which mitigates the problems above.
If you set it higher (|10s| or |1m| say) then the kernel will call
If you set it higher (`10s` or `1m` say) then the kernel will call
back to rclone less often making it more efficient, however there is
more chance of the corruption issue above.
@ -388,32 +384,32 @@ Units having the rclone @ service specified as a requirement
will see all files and folders immediately in this mode.
Note that systemd runs mount units without any environment variables including
|PATH| or |HOME|. This means that tilde (|~|) expansion will not work
and you should provide |--config| and |--cache-dir| explicitly as absolute
`PATH` or `HOME`. This means that tilde (`~`) expansion will not work
and you should provide `--config` and `--cache-dir` explicitly as absolute
paths via rclone arguments.
Since mounting requires the |fusermount| program, rclone will use the fallback
PATH of |/bin:/usr/bin| in this scenario. Please ensure that |fusermount|
Since mounting requires the `fusermount` program, rclone will use the fallback
PATH of `/bin:/usr/bin` in this scenario. Please ensure that `fusermount`
is present on this PATH.
### Rclone as Unix mount helper
The core Unix program |/bin/mount| normally takes the |-t FSTYPE| argument
then runs the |/sbin/mount.FSTYPE| helper program passing it mount options
as |-o key=val,...| or |--opt=...|. Automount (classic or systemd) behaves
The core Unix program `/bin/mount` normally takes the `-t FSTYPE` argument
then runs the `/sbin/mount.FSTYPE` helper program passing it mount options
as `-o key=val,...` or `--opt=...`. Automount (classic or systemd) behaves
in a similar way.
rclone by default expects GNU-style flags |--key val|. To run it as a mount
helper you should symlink rclone binary to |/sbin/mount.rclone| and optionally
|/usr/bin/rclonefs|, e.g. |ln -s /usr/bin/rclone /sbin/mount.rclone|.
rclone by default expects GNU-style flags `--key val`. To run it as a mount
helper you should symlink rclone binary to `/sbin/mount.rclone` and optionally
`/usr/bin/rclonefs`, e.g. `ln -s /usr/bin/rclone /sbin/mount.rclone`.
rclone will detect it and translate command-line arguments appropriately.
Now you can run classic mounts like this:
|||
```
mount sftp1:subdir /mnt/data -t rclone -o vfs_cache_mode=writes,sftp_key_file=/path/to/pem
|||
```
or create systemd mount units:
|||
```
# /etc/systemd/system/mnt-data.mount
[Unit]
Description=Mount for /mnt/data
@ -422,10 +418,10 @@ Type=rclone
What=sftp1:subdir
Where=/mnt/data
Options=rw,_netdev,allow_other,args2env,vfs-cache-mode=writes,config=/etc/rclone.conf,cache-dir=/var/rclone
|||
```
optionally accompanied by systemd automount unit
|||
```
# /etc/systemd/system/mnt-data.automount
[Unit]
Description=AutoMount for /mnt/data
@ -434,34 +430,33 @@ Where=/mnt/data
TimeoutIdleSec=600
[Install]
WantedBy=multi-user.target
|||
```
or add in |/etc/fstab| a line like
|||
or add in `/etc/fstab` a line like
```
sftp1:subdir /mnt/data rclone rw,noauto,nofail,_netdev,x-systemd.automount,args2env,vfs_cache_mode=writes,config=/etc/rclone.conf,cache_dir=/var/cache/rclone 0 0
|||
```
or use classic Automountd.
Remember to provide explicit |config=...,cache-dir=...| as a workaround for
mount units being run without |HOME|.
Remember to provide explicit `config=...,cache-dir=...` as a workaround for
mount units being run without `HOME`.
Rclone in the mount helper mode will split |-o| argument(s) by comma, replace |_|
by |-| and prepend |--| to get the command-line flags. Options containing commas
Rclone in the mount helper mode will split `-o` argument(s) by comma, replace `_`
by `-` and prepend `--` to get the command-line flags. Options containing commas
or spaces can be wrapped in single or double quotes. Any inner quotes inside outer
quotes of the same type should be doubled.
Mount option syntax includes a few extra options treated specially:
- |env.NAME=VALUE| will set an environment variable for the mount process.
- `env.NAME=VALUE` will set an environment variable for the mount process.
This helps with Automountd and Systemd.mount which don't allow setting
custom environment for mount helpers.
Typically you will use |env.HTTPS_PROXY=proxy.host:3128| or |env.HOME=/root|
- |command=cmount| can be used to run |cmount| or any other rclone command
rather than the default |mount|.
- |args2env| will pass mount options to the mount helper running in background
Typically you will use `env.HTTPS_PROXY=proxy.host:3128` or `env.HOME=/root`
- `command=cmount` can be used to run `cmount` or any other rclone command
rather than the default `mount`.
- `args2env` will pass mount options to the mount helper running in background
via environment variables instead of command line arguments. This allows to
hide secrets from such commands as |ps| or |pgrep|.
- |vv...| will be transformed into appropriate |--verbose=N|
- standard mount options like |x-systemd.automount|, |_netdev|, |nosuid| and alike
hide secrets from such commands as `ps` or `pgrep`.
- `vv...` will be transformed into appropriate `--verbose=N`
- standard mount options like `x-systemd.automount`, `_netdev`, `nosuid` and alike
are intended only for Automountd and ignored by rclone.
`

6
cmd/selfupdate/selfupdate.go
View File

@ -10,6 +10,7 @@ import (
"bytes"
"context"
"crypto/sha256"
_ "embed"
"encoding/hex"
"errors"
"fmt"
@ -35,6 +36,9 @@ import (
versionCmd "github.com/rclone/rclone/cmd/version"
)
//go:embed selfupdate.md
var selfUpdateHelp string
// Options contains options for the self-update command
type Options struct {
Check bool
@ -63,7 +67,7 @@ var cmdSelfUpdate = &cobra.Command{
Use: "selfupdate",
Aliases: []string{"self-update"},
Short: `Update the rclone binary.`,
Long: strings.ReplaceAll(selfUpdateHelp, "|", "`"),
Long: selfUpdateHelp,
Annotations: map[string]string{
"versionIntroduced": "v1.55",
},

38
cmd/selfupdate/help.go → cmd/selfupdate/selfupdate.md
View File

@ -1,55 +1,47 @@
//go:build !noselfupdate
// +build !noselfupdate
package selfupdate
// Note: "|" will be replaced by backticks in the help string below
var selfUpdateHelp = `
This command downloads the latest release of rclone and replaces the
currently running binary. The download is verified with a hashsum and
cryptographically signed signature; see [the release signing
docs](/release_signing/) for details.
If used without flags (or with implied |--stable| flag), this command
If used without flags (or with implied `--stable` flag), this command
will install the latest stable release. However, some issues may be fixed
(or features added) only in the latest beta release. In such cases you should
run the command with the |--beta| flag, i.e. |rclone selfupdate --beta|.
run the command with the `--beta` flag, i.e. `rclone selfupdate --beta`.
You can check in advance what version would be installed by adding the
|--check| flag, then repeat the command without it when you are satisfied.
`--check` flag, then repeat the command without it when you are satisfied.
Sometimes the rclone team may recommend you a concrete beta or stable
rclone release to troubleshoot your issue or add a bleeding edge feature.
The |--version VER| flag, if given, will update to the concrete version
instead of the latest one. If you omit micro version from |VER| (for
example |1.53|), the latest matching micro version will be used.
The `--version VER` flag, if given, will update to the concrete version
instead of the latest one. If you omit micro version from `VER` (for
example `1.53`), the latest matching micro version will be used.
Upon successful update rclone will print a message that contains a previous
version number. You will need it if you later decide to revert your update
for some reason. Then you'll have to note the previous version and run the
following command: |rclone selfupdate [--beta] OLDVER|.
If the old version contains only dots and digits (for example |v1.54.0|)
then it's a stable release so you won't need the |--beta| flag. Beta releases
have an additional information similar to |v1.54.0-beta.5111.06f1c0c61|.
following command: `rclone selfupdate [--beta] OLDVER`.
If the old version contains only dots and digits (for example `v1.54.0`)
then it's a stable release so you won't need the `--beta` flag. Beta releases
have an additional information similar to `v1.54.0-beta.5111.06f1c0c61`.
(if you are a developer and use a locally built rclone, the version number
will end with |-DEV|, you will have to rebuild it as it obviously can't
will end with `-DEV`, you will have to rebuild it as it obviously can't
be distributed).
If you previously installed rclone via a package manager, the package may
include local documentation or configure services. You may wish to update
with the flag |--package deb| or |--package rpm| (whichever is correct for
your OS) to update these too. This command with the default |--package zip|
with the flag `--package deb` or `--package rpm` (whichever is correct for
your OS) to update these too. This command with the default `--package zip`
will update only the rclone executable so the local manual may become
inaccurate after it.
The [rclone mount](/commands/rclone_mount/) command may
or may not support extended FUSE options depending on the build and OS.
|selfupdate| will refuse to update if the capability would be discarded.
`selfupdate` will refuse to update if the capability would be discarded.
Note: Windows forbids deletion of a currently running executable so this
command will rename the old executable to 'rclone.old.exe' upon success.
Please note that this command was not available before rclone version 1.55.
If it fails for you with the message |unknown command "selfupdate"| then
If it fails for you with the message `unknown command "selfupdate"` then
you will need to update manually following the install instructions located
at https://rclone.org/install/
`

7
cmd/serve/docker/docker.go
View File

@ -3,8 +3,8 @@ package docker
import (
"context"
_ "embed"
"path/filepath"
"strings"
"syscall"
"github.com/spf13/cobra"
@ -30,6 +30,9 @@ var (
noSpec = false
)
//go:embed docker.md
var longHelp string
func init() {
cmdFlags := Command.Flags()
// Add command specific flags
@ -47,7 +50,7 @@ func init() {
var Command = &cobra.Command{
Use: "docker",
Short: `Serve any remote on docker's volume plugin API.`,
Long: strings.ReplaceAll(longHelp, "|", "`") + vfs.Help,
Long: longHelp + vfs.Help,
Annotations: map[string]string{
"versionIntroduced": "v1.56",
"groups": "Filter",

29
cmd/serve/docker/help.go → cmd/serve/docker/docker.md
View File

@ -1,7 +1,3 @@
package docker
// Note: "|" will be replaced by backticks
var longHelp = `
This command implements the Docker volume plugin API allowing docker to use
rclone as a data storage mechanism for various cloud providers.
rclone provides [docker volume plugin](/docker) based on it.
@ -12,32 +8,31 @@ docker daemon and runs the corresponding code when necessary.
Docker plugins can run as a managed plugin under control of the docker daemon
or as an independent native service. For testing, you can just run it directly
from the command line, for example:
|||
```
sudo rclone serve docker --base-dir /tmp/rclone-volumes --socket-addr localhost:8787 -vv
|||
```
Running |rclone serve docker| will create the said socket, listening for
Running `rclone serve docker` will create the said socket, listening for
commands from Docker to create the necessary Volumes. Normally you need not
give the |--socket-addr| flag. The API will listen on the unix domain socket
at |/run/docker/plugins/rclone.sock|. In the example above rclone will create
a TCP socket and a small file |/etc/docker/plugins/rclone.spec| containing
the socket address. We use |sudo| because both paths are writeable only by
give the `--socket-addr` flag. The API will listen on the unix domain socket
at `/run/docker/plugins/rclone.sock`. In the example above rclone will create
a TCP socket and a small file `/etc/docker/plugins/rclone.spec` containing
the socket address. We use `sudo` because both paths are writeable only by
the root user.
If you later decide to change listening socket, the docker daemon must be
restarted to reconnect to |/run/docker/plugins/rclone.sock|
or parse new |/etc/docker/plugins/rclone.spec|. Until you restart, any
restarted to reconnect to `/run/docker/plugins/rclone.sock`
or parse new `/etc/docker/plugins/rclone.spec`. Until you restart, any
volume related docker commands will timeout trying to access the old socket.
Running directly is supported on **Linux only**, not on Windows or MacOS.
This is not a problem with managed plugin mode described in details
in the [full documentation](https://rclone.org/docker).
The command will create volume mounts under the path given by |--base-dir|
(by default |/var/lib/docker-volumes/rclone| available only to root)
and maintain the JSON formatted file |docker-plugin.state| in the rclone cache
The command will create volume mounts under the path given by `--base-dir`
(by default `/var/lib/docker-volumes/rclone` available only to root)
and maintain the JSON formatted file `docker-plugin.state` in the rclone cache
directory with book-keeping records of created and mounted volumes.
All mount and VFS options are submitted by the docker daemon via API, but
you can also provide defaults on the command line as well as set path to the
config file and cache directory or adjust logging verbosity.
`

6
vfs/vfs.go
View File

@ -22,6 +22,7 @@ package vfs
import (
"context"
_ "embed"
"fmt"
"io"
"os"
@ -42,6 +43,11 @@ import (
"github.com/rclone/rclone/vfs/vfscommon"
)
// Help for the VFS.
//
//go:embed vfs.md
var Help string
// Node represents either a directory (*Dir) or a file (*File)
type Node interface {
os.FileInfo

95
vfs/help.go → vfs/vfs.md
View File

@ -1,15 +1,3 @@
package vfs
import (
"strings"
)
// Help contains text describing file and directory caching to add to
// the command help.
// Warning: "!" (sic) will be replaced by backticks below,
//
// but the pipe character "|" can be used as is.
var Help = strings.ReplaceAll(`
### VFS - Virtual File System
This command uses the VFS layer. This adapts the cloud storage objects
@ -26,7 +14,7 @@ about files and directories (but not the data) in memory.
### VFS Directory Cache
Using the !--dir-cache-time! flag, you can control how long a
Using the `--dir-cache-time` flag, you can control how long a
directory should be considered up to date and not refreshed from the
backend. Changes made through the VFS will appear immediately or
invalidate the cache.
@ -40,7 +28,7 @@ the directory cache expires if the backend configured does not support
polling for changes. If the backend supports polling, changes will be
picked up within the polling interval.
You can send a !SIGHUP! signal to rclone for it to flush all
You can send a `SIGHUP` signal to rclone for it to flush all
directory caches, regardless of how old they are. Assuming only one
rclone instance is running, you can reset the cache like this:
@ -57,7 +45,7 @@ Or individual files or directories:
### VFS File Buffering
The !--buffer-size! flag determines the amount of memory,
The `--buffer-size` flag determines the amount of memory,
that will be used to buffer data in advance.
Each open file will try to keep the specified amount of data in memory
@ -70,7 +58,7 @@ yet read. If the buffer is empty, only a small amount of memory will
be used.
The maximum memory used by rclone for buffering can be up to
!--buffer-size * open files!.
`--buffer-size * open files`.
### VFS File Caching
@ -92,32 +80,32 @@ find that you need one or the other or both.
--vfs-cache-poll-interval duration Interval to poll the cache for stale objects (default 1m0s)
--vfs-write-back duration Time to writeback files after last use when using cache (default 5s)
If run with !-vv! rclone will print the location of the file cache. The
If run with `-vv` rclone will print the location of the file cache. The
files are stored in the user cache file area which is OS dependent but
can be controlled with !--cache-dir! or setting the appropriate
can be controlled with `--cache-dir` or setting the appropriate
environment variable.
The cache has 4 different modes selected by !--vfs-cache-mode!.
The cache has 4 different modes selected by `--vfs-cache-mode`.
The higher the cache mode the more compatible rclone becomes at the
cost of using disk space.
Note that files are written back to the remote only when they are
closed and if they haven't been accessed for !--vfs-write-back!
closed and if they haven't been accessed for `--vfs-write-back`
seconds. If rclone is quit or dies with files that haven't been
uploaded, these will be uploaded next time rclone is run with the same
flags.
If using !--vfs-cache-max-size! or !--vfs-cache-min-free-size! note
If using `--vfs-cache-max-size` or `--vfs-cache-min-free-size` note
that the cache may exceed these quotas for two reasons. Firstly
because it is only checked every !--vfs-cache-poll-interval!. Secondly
because it is only checked every `--vfs-cache-poll-interval`. Secondly
because open files cannot be evicted from the cache. When
!--vfs-cache-max-size! or !--vfs-cache-min-free-size! is exceeded,
`--vfs-cache-max-size` or `--vfs-cache-min-free-size` is exceeded,
rclone will attempt to evict the least accessed files from the cache
first. rclone will start with files that haven't been accessed for the
longest. This cache flushing strategy is efficient and more relevant
files are likely to remain cached.
The !--vfs-cache-max-age! will evict files from the cache
The `--vfs-cache-max-age` will evict files from the cache
after the set time since last access has passed. The default value of
1 hour will start evicting files from cache that haven't been accessed
for 1 hour. When a cached file is accessed the 1 hour timer is reset to 0
@ -125,10 +113,10 @@ and will wait for 1 more hour before evicting. Specify the time with
standard notation, s, m, h, d, w .
You **should not** run two copies of rclone using the same VFS cache
with the same or overlapping remotes if using !--vfs-cache-mode > off!.
with the same or overlapping remotes if using `--vfs-cache-mode > off`.
This can potentially cause data corruption if you do. You can work
around this by giving each rclone its own cache hierarchy with
!--cache-dir!. You don't need to worry about this if the remotes in
`--cache-dir`. You don't need to worry about this if the remotes in
use don't overlap.
#### --vfs-cache-mode off
@ -184,14 +172,14 @@ their full size in the cache, but they will be sparse files with only
the data that has been downloaded present in them.
This mode should support all normal file system operations and is
otherwise identical to !--vfs-cache-mode! writes.
otherwise identical to `--vfs-cache-mode` writes.
When reading a file rclone will read !--buffer-size! plus
!--vfs-read-ahead! bytes ahead. The !--buffer-size! is buffered in memory
whereas the !--vfs-read-ahead! is buffered on disk.
When reading a file rclone will read `--buffer-size` plus
`--vfs-read-ahead` bytes ahead. The `--buffer-size` is buffered in memory
whereas the `--vfs-read-ahead` is buffered on disk.
When using this mode it is recommended that !--buffer-size! is not set
too large and !--vfs-read-ahead! is set large if required.
When using this mode it is recommended that `--buffer-size` is not set
too large and `--vfs-read-ahead` is set large if required.
**IMPORTANT** not all file systems support sparse files. In particular
FAT/exFAT do not. Rclone will perform very badly if the cache
@ -213,17 +201,17 @@ where available on an object.
On some backends some of these attributes are slow to read (they take
an extra API call per object, or extra work per object).
For example !hash! is slow with the !local! and !sftp! backends as
they have to read the entire file and hash it, and !modtime! is slow
with the !s3!, !swift!, !ftp! and !qinqstor! backends because they
For example `hash` is slow with the `local` and `sftp` backends as
they have to read the entire file and hash it, and `modtime` is slow
with the `s3`, `swift`, `ftp` and `qinqstor` backends because they
need to do an extra API call to fetch it.
If you use the !--vfs-fast-fingerprint! flag then rclone will not
If you use the `--vfs-fast-fingerprint` flag then rclone will not
include the slow operations in the fingerprint. This makes the
fingerprinting less accurate but much faster and will improve the
opening time of cached files.
If you are running a vfs cache over !local!, !s3! or !swift! backends
If you are running a vfs cache over `local`, `s3` or `swift` backends
then using this flag is recommended.
Note that if you change the value of this flag, the fingerprints of
@ -243,19 +231,19 @@ These flags control the chunking:
--vfs-read-chunk-size SizeSuffix Read the source objects in chunks (default 128M)
--vfs-read-chunk-size-limit SizeSuffix Max chunk doubling size (default off)
Rclone will start reading a chunk of size !--vfs-read-chunk-size!,
and then double the size for each read. When !--vfs-read-chunk-size-limit! is
specified, and greater than !--vfs-read-chunk-size!, the chunk size for each
Rclone will start reading a chunk of size `--vfs-read-chunk-size`,
and then double the size for each read. When `--vfs-read-chunk-size-limit` is
specified, and greater than `--vfs-read-chunk-size`, the chunk size for each
open file will get doubled only until the specified value is reached. If the
value is "off", which is the default, the limit is disabled and the chunk size
will grow indefinitely.
With !--vfs-read-chunk-size 100M! and !--vfs-read-chunk-size-limit 0!
With `--vfs-read-chunk-size 100M` and `--vfs-read-chunk-size-limit 0`
the following parts will be downloaded: 0-100M, 100M-200M, 200M-300M, 300M-400M and so on.
When !--vfs-read-chunk-size-limit 500M! is specified, the result would be
When `--vfs-read-chunk-size-limit 500M` is specified, the result would be
0-100M, 100M-300M, 300M-700M, 700M-1200M, 1200M-1700M and so on.
Setting !--vfs-read-chunk-size! to !0! or "off" disables chunked reading.
Setting `--vfs-read-chunk-size` to `0` or "off" disables chunked reading.
### VFS Performance
@ -263,8 +251,8 @@ These flags may be used to enable/disable features of the VFS for
performance or other reasons. See also the [chunked reading](#vfs-chunked-reading)
feature.
In particular S3 and Swift benefit hugely from the !--no-modtime! flag
(or use !--use-server-modtime! for a slightly different effect) as each
In particular S3 and Swift benefit hugely from the `--no-modtime` flag
(or use `--use-server-modtime` for a slightly different effect) as each
read of the modification time takes a transaction.
--no-checksum Don't compare checksums on up/download.
@ -280,9 +268,9 @@ on disk cache file.
--vfs-read-wait duration Time to wait for in-sequence read before seeking (default 20ms)
--vfs-write-wait duration Time to wait for in-sequence write before giving error (default 1s)
When using VFS write caching (!--vfs-cache-mode! with value writes or full),
the global flag !--transfers! can be set to adjust the number of parallel uploads of
modified files from the cache (the related global flag !--checkers! has no effect on the VFS).
When using VFS write caching (`--vfs-cache-mode` with value writes or full),
the global flag `--transfers` can be set to adjust the number of parallel uploads of
modified files from the cache (the related global flag `--checkers` has no effect on the VFS).
--transfers int Number of file transfers to run in parallel (default 4)
@ -299,7 +287,7 @@ It is not allowed for two files in the same directory to differ only by case.
Usually file systems on macOS are case-insensitive. It is possible to make macOS
file systems case-sensitive but that is not the default.
The !--vfs-case-insensitive! VFS flag controls how rclone handles these
The `--vfs-case-insensitive` VFS flag controls how rclone handles these
two cases. If its value is "false", rclone passes file names to the remote
as-is. If the flag is "true" (or appears without a value on the
command line), rclone may perform a "fixup" as explained below.
@ -331,13 +319,12 @@ It can be useful when those statistics cannot be read correctly automatically.
### Alternate report of used bytes
Some backends, most notably S3, do not report the amount of bytes used.
If you need this information to be available when running !df! on the
filesystem, then pass the flag !--vfs-used-is-size! to rclone.
If you need this information to be available when running `df` on the
filesystem, then pass the flag `--vfs-used-is-size` to rclone.
With this flag set, instead of relying on the backend to report this
information, rclone will scan the whole remote similar to !rclone size!
information, rclone will scan the whole remote similar to `rclone size`
and compute the total used space itself.
_WARNING._ Contrary to !rclone size!, this flag ignores filters so that the
_WARNING._ Contrary to `rclone size`, this flag ignores filters so that the
result is accurate. However, this is very inefficient and may cost lots of API
calls resulting in extra charges. Use it as a last resort and only with caching.
`, "!", "`")