using rclone to mount a remote copyparty server as a local filesystem

speed estimates with server and client on the same win10 machine:

1070 MiB/s with rclone as both server and client
570 MiB/s with rclone-client and copyparty -ed -j16 as server
220 MiB/s with rclone-client and copyparty -ed as server
100 MiB/s with ../bin/partyfuse.py as client

when server is on another machine (1gbit LAN),

75 MiB/s with ../bin/partyfuse.py as client
92 MiB/s with rclone-client and copyparty -ed as server
103 MiB/s (connection max) with copyparty -ed -j16 and all the others

creating the config file

the copyparty "connect" page at /?hc (so for example http://127.0.0.1:3923/?hc) will generate commands to autoconfigure rclone for your server

if you prefer to configure rclone manually, continue reading:

replace hunter2 with your password, or remove the hunter2 lines if you allow anonymous access

on windows clients:

(
echo [cpp-rw]
echo type = webdav
echo vendor = owncloud
echo url = http://127.0.0.1:3923/
echo headers = Cookie,cppwd=hunter2
echo pacer_min_sleep = 0.01ms
echo(
echo [cpp-ro]
echo type = http
echo url = http://127.0.0.1:3923/
echo headers = Cookie,cppwd=hunter2
echo pacer_min_sleep = 0.01ms
) > %userprofile%\.config\rclone\rclone.conf

also install the windows dependencies: winfsp

on unix clients:

cat > ~/.config/rclone/rclone.conf <<'EOF'
[cpp-rw]
type = webdav
vendor = owncloud
url = http://127.0.0.1:3923/
headers = Cookie,cppwd=hunter2
pacer_min_sleep = 0.01ms

[cpp-ro]
type = http
url = http://127.0.0.1:3923/
headers = Cookie,cppwd=hunter2
pacer_min_sleep = 0.01ms
EOF

mounting the copyparty server locally

connect to cpp-rw: for read-write, or cpp-ro: for read-only (twice as fast):

rclone.exe mount --vfs-cache-mode writes --vfs-cache-max-age 5s --attr-timeout 5s --dir-cache-time 5s cpp-rw: W:

sync folders to/from copyparty

note that the up2k client u2c.py (available on the "connect" page of your copyparty server) does uploads much faster and safer, but rclone is bidirectional and more ubiquitous

rclone sync /usr/share/icons/ cpp-rw:fds/

use rclone as server too, replacing copyparty

feels out of place but is too good not to mention

rclone.exe serve http --read-only .
rclone.exe serve webdav .

devnotes

copyparty supports and expects the following from rclone,

case "owncloud":
    f.canStream = true
    f.precision = time.Second
    f.useOCMtime = true
    f.hasOCMD5 = true
    f.hasOCSHA1 = true

notably,

useOCMtime enables the x-oc-mtime header to retain mtime of uploads from rclone
canStream is supported but not required by us
hasOCMD5 / hasOCSHA1 is conveniently dontcare on both ends

there's a scary comment mentioning PROPSET of lastmodified which is not something we wish to support

and if vendor=owncloud ever stops working, try vendor=fastmail instead

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