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vfs: Add go-billy dependency and make sure vfs.Handle implements billy.File

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billy defines a common file system interface that is used in multiple go packages.
vfs.Handle implements billy.File mostly, only two methods needed to be added to
make it compliant.

An interface check is added as well.

This is a preliminary work for adding serve nfs command.
This commit is contained in:
Saleh Dindar 2023-10-04 10:25:57 -07:00 committed by Nick Craig-Wood
parent 7801b160f2
commit 25f59b2918
5 changed files with 32 additions and 5 deletions
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1
go.mod
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@ -26,6 +26,7 @@ require (
github.com/gabriel-vasile/mimetype v1.4.2
github.com/gdamore/tcell/v2 v2.6.0
github.com/go-chi/chi/v5 v5.0.10
github.com/go-git/go-billy/v5 v5.4.1
github.com/google/uuid v1.3.1
github.com/hanwen/go-fuse/v2 v2.3.0
github.com/henrybear327/Proton-API-Bridge v0.0.0-20230908065933-5bfa15b567db

2
go.sum
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@ -187,6 +187,8 @@ github.com/glycerine/go-unsnap-stream v0.0.0-20180323001048-9f0cb55181dd/go.mod
github.com/glycerine/goconvey v0.0.0-20180728074245-46e3a41ad493/go.mod h1:Ogl1Tioa0aV7gstGFO7KhffUsb9M4ydbEbbxpcEDc24=
github.com/go-chi/chi/v5 v5.0.10 h1:rLz5avzKpjqxrYwXNfmjkrYYXOyLJd37pz53UFHC6vk=
github.com/go-chi/chi/v5 v5.0.10/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
github.com/go-git/go-billy/v5 v5.4.1 h1:Uwp5tDRkPr+l/TnbHOQzp+tmJfLceOlbVucgpTz8ix4=
github.com/go-git/go-billy/v5 v5.4.1/go.mod h1:vjbugF6Fz7JIflbVpl1hJsGjSHNltrSw45YK/ukIvQg=
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=

10
vfs/read_write.go
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@ -30,6 +30,16 @@ type RWFileHandle struct {
writeCalled bool // if any Write() methods have been called
}
// Lock performs Unix locking, not supported
func (fh *RWFileHandle) Lock() error {
return os.ErrInvalid
}
// Unlock performs Unix unlocking, not supported
func (fh *RWFileHandle) Unlock() error {
return os.ErrInvalid
}
func newRWFileHandle(d *Dir, f *File, flags int) (fh *RWFileHandle, err error) {
defer log.Trace(f.Path(), "")("err=%v", &err)
// get an item to represent this from the cache

16
vfs/vfs.go
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@ -32,6 +32,7 @@ import (
"sync/atomic"
"time"
"github.com/go-git/go-billy/v5"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/cache"
"github.com/rclone/rclone/fs/log"
@ -119,6 +120,8 @@ type Handle interface {
Release() error
Node() Node
// Size() int64
Lock() error
Unlock() error
}
// baseHandle implements all the missing methods
@ -144,16 +147,19 @@ func (h baseHandle) WriteString(s string) (n int, err error) { retu
func (h baseHandle) Flush() (err error) { return ENOSYS }
func (h baseHandle) Release() (err error) { return ENOSYS }
func (h baseHandle) Node() Node { return nil }
func (h baseHandle) Unlock() error { return os.ErrInvalid }
func (h baseHandle) Lock() error { return os.ErrInvalid }
//func (h baseHandle) Size() int64 { return 0 }
// Check interfaces
var (
_ OsFiler = (*os.File)(nil)
_ Handle = (*baseHandle)(nil)
_ Handle = (*ReadFileHandle)(nil)
_ Handle = (*WriteFileHandle)(nil)
_ Handle = (*DirHandle)(nil)
_ OsFiler = (*os.File)(nil)
_ Handle = (*baseHandle)(nil)
_ Handle = (*ReadFileHandle)(nil)
_ Handle = (*WriteFileHandle)(nil)
_ Handle = (*DirHandle)(nil)
_ billy.File = (Handle)(nil)
)
// VFS represents the top level filing system

8
vfs/vfstest/os.go
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@ -48,6 +48,14 @@ func (f realOsFile) Node() vfs.Node {
return nil
}
func (f realOsFile) Lock() error {
return os.ErrInvalid
}
func (f realOsFile) Unlock() error {
return os.ErrInvalid
}
// Chtimes
func (r realOs) Chtimes(name string, atime time.Time, mtime time.Time) error {
return os.Chtimes(name, atime, mtime)