91 lines
1.9 KiB
Go
91 lines
1.9 KiB
Go
// FUSE main Fs
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// +build linux darwin freebsd
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package mount
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import (
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"bazil.org/fuse"
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fusefs "bazil.org/fuse/fs"
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"github.com/ncw/rclone/fs"
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)
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// FS represents the top level filing system
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type FS struct {
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f fs.Fs
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}
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// Check interface satistfied
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var _ fusefs.FS = (*FS)(nil)
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// Root returns the root node
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func (f *FS) Root() (fusefs.Node, error) {
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fs.Debug(f.f, "Root()")
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return newDir(f.f, ""), nil
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}
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// mountOptions configures the options from the command line flags
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func mountOptions(device string) (options []fuse.MountOption) {
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options = []fuse.MountOption{
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fuse.MaxReadahead(uint32(maxReadAhead)),
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fuse.Subtype("rclone"),
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fuse.FSName(device), fuse.VolumeName(device),
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fuse.NoAppleDouble(),
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fuse.NoAppleXattr(),
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}
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if allowNonEmpty {
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options = append(options, fuse.AllowNonEmptyMount())
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}
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if allowOther {
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options = append(options, fuse.AllowOther())
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}
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if allowRoot {
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options = append(options, fuse.AllowRoot())
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}
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if defaultPermissions {
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options = append(options, fuse.DefaultPermissions())
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}
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if readOnly {
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options = append(options, fuse.ReadOnly())
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}
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if writebackCache {
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options = append(options, fuse.WritebackCache())
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}
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return options
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}
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// mount the file system
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//
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// The mount point will be ready when this returns.
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//
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// returns an error, and an error channel for the serve process to
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// report an error when fusermount is called.
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func mount(f fs.Fs, mountpoint string) (<-chan error, error) {
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c, err := fuse.Mount(mountpoint, mountOptions(f.Name()+":"+f.Root())...)
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if err != nil {
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return nil, err
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}
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filesys := &FS{
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f: f,
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}
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// Serve the mount point in the background returning error to errChan
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errChan := make(chan error, 1)
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go func() {
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err := fusefs.Serve(c, filesys)
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closeErr := c.Close()
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if err == nil {
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err = closeErr
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}
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errChan <- err
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}()
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// check if the mount process has an error to report
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<-c.Ready
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if err := c.MountError; err != nil {
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return nil, err
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}
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return errChan, nil
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}
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