Correct way to request a mount in Golang

SNA · September 17, 2022, 3:12pm

What would be the right way to trigger the mount of an encrypted volume through Golang rclone mount functions (linux OS) (equivalent of rclone mount encrypted_storage: /encrypted_storage and potentially some options too)? I see a few different options, such as NewMountPoint and NewMountCommand. It seems both need a mount function to be passed in which needs constructing? The Rclone.conf file is present and ready to go with the required mounts, just the trigger that is missing.

I also need to be able to do the mount from an encrypted rclone.conf config file. Should the config file be decrypted first, or is there a way to pass in the password to each mount command?

ncw · September 18, 2022, 4:25pm

The easiest way to use rclone programmatically is to use the functions exposed in librclone which expose the API but as an in-process version.

This interface is guaranteed not to change also.

SNA · September 19, 2022, 6:44am

The code for building Rclone in C? I'm a little lost on the approach.

I managed to get it working by replicating the code from the mountRC in my own function. As they are not exposed functions I wasn't able to call them directly, which is why I replicated it in my own code. It seems to be working ok, and the RC snippets act as nice code examples. I had thought there may have been a function like this exposed that I could just pass in the various opts and create a mount.

I haven't yet had a chance to look at how decrypting the config file will fit in with this.

github.com

rclone/rclone/blob/88086643f72d718c10ecb9831e101e5c787eb5cb/cmd/mountlib/rc.go#L82


      
          
          
The vfsOpt are as described in options/get and can be seen in the the
          "vfs" section when running and the mountOpt can be seen in the "mount" section:
          
          
    rclone rc options/get
          `,
          	})
          }
          
          
// mountRc allows the mount command to be run from rc
          func mountRc(ctx context.Context, in rc.Params) (out rc.Params, err error) {
          	mountPoint, err := in.GetString("mountPoint")
          	if err != nil {
          		return nil, err
          	}
          
          
	vfsOpt := vfsflags.Opt
          	err = in.GetStructMissingOK("vfsOpt", &vfsOpt)
          	if err != nil {
          		return nil, err
          	}

ncw · September 19, 2022, 8:46am

I meant use this code

github.com

rclone/rclone/blob/master/librclone/librclone/librclone.go

// Package librclone exports shims for library use
//
// This is the internal implementation which is used for C and
// Gomobile libraries which need slightly different export styles.
//
// The shims are a thin wrapper over the rclone RPC.
package librclone

import (
	"context"
	"encoding/json"
	"fmt"
	"net/http"
	"runtime"
	"runtime/debug"
	"strings"

	"github.com/rclone/rclone/fs"
	"github.com/rclone/rclone/fs/accounting"
	"github.com/rclone/rclone/fs/config/configfile"

This file has been truncated. show original

Which is an in-process API call.

system · November 19, 2022, 4:47am

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