tailscale: update tailfs functions and vars to use drive naming (#11597)

This change updates all tailfs functions and the majority of the tailfs
variables to use the new drive naming.

Updates tailscale/corp#16827

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>

drive/driveimpl/drive_test.go

@@ -41,7 +41,7 @@ func init() {
 	drive.DisallowShareAs = true
 }
 
-// The tests in this file simulate real-life TailFS scenarios, but without
+// The tests in this file simulate real-life Taildrive scenarios, but without
 // going over the Tailscale network stack.
 func TestDirectoryListing(t *testing.T) {
 	s := newSystem(t)

drive/driveimpl/fileserver.go

@@ -13,7 +13,7 @@ import (
 )
 
 // FileServer is a standalone WebDAV server that dynamically serves up shares.
-// It's typically used in a separate process from the actual TailFS server to
+// It's typically used in a separate process from the actual Taildrive server to
 // serve up files as an unprivileged user.
 type FileServer struct {
 	l             net.Listener

drive/driveimpl/local_impl.go

@@ -42,8 +42,8 @@ func NewFileSystemForLocal(logf logger.Logf) *FileSystemForLocal {
 	return fs
 }
 
-// FileSystemForLocal is the TailFS filesystem exposed to local clients. It
-// provides a unified WebDAV interface to remote TailFS shares on other nodes.
+// FileSystemForLocal is the Taildrive filesystem exposed to local clients. It
+// provides a unified WebDAV interface to remote Taildrive shares on other nodes.
 type FileSystemForLocal struct {
 	logf     logger.Logf
 	h        *compositedav.Handler

drive/driveimpl/remote_impl.go

@@ -44,7 +44,7 @@ func NewFileSystemForRemote(logf logger.Logf) *FileSystemForRemote {
 	return fs
 }
 
-// FileSystemForRemote implements tailfs.FileSystemForRemote.
+// FileSystemForRemote implements drive.FileSystemForRemote.
 type FileSystemForRemote struct {
 	logf       logger.Logf
 	lockSystem webdav.LockSystem
@@ -58,15 +58,15 @@ type FileSystemForRemote struct {
 	userServers    map[string]*userServer
 }
 
-// SetFileServerAddr implements tailfs.FileSystemForRemote.
+// SetFileServerAddr implements drive.FileSystemForRemote.
 func (s *FileSystemForRemote) SetFileServerAddr(addr string) {
 	s.mu.Lock()
 	s.fileServerAddr = addr
 	s.mu.Unlock()
 }
 
-// SetShares implements tailfs.FileSystemForRemote. Shares must be sorted
-// according to tailfs.CompareShares.
+// SetShares implements drive.FileSystemForRemote. Shares must be sorted
+// according to drive.CompareShares.
 func (s *FileSystemForRemote) SetShares(shares []*drive.Share) {
 	userServers := make(map[string]*userServer)
 	if drive.AllowShareAs() {
@@ -176,7 +176,7 @@ func (s *FileSystemForRemote) buildChild(share *drive.Share) *compositedav.Child
 	}
 }
 
-// ServeHTTPWithPerms implements tailfs.FileSystemForRemote.
+// ServeHTTPWithPerms implements drive.FileSystemForRemote.
 func (s *FileSystemForRemote) ServeHTTPWithPerms(permissions drive.Permissions, w http.ResponseWriter, r *http.Request) {
 	isWrite := writeMethods[r.Method]
 	if isWrite {
@@ -228,7 +228,7 @@ func (s *FileSystemForRemote) closeChildren(children map[string]*compositedav.Ch
 	}
 }
 
-// Close() implements tailfs.FileSystemForRemote.
+// Close() implements drive.FileSystemForRemote.
 func (s *FileSystemForRemote) Close() error {
 	s.mu.Lock()
 	userServers := s.userServers

drive/driveimpl/shared/readonlydir.go

@@ -1,7 +1,7 @@
 // Copyright (c) Tailscale Inc & AUTHORS
 // SPDX-License-Identifier: BSD-3-Clause
 
-// Package shared contains types and functions shared by different tailfs
+// Package shared contains types and functions shared by different drive
 // packages.
 package shared
 

drive/local.go

@@ -2,10 +2,10 @@
 // SPDX-License-Identifier: BSD-3-Clause
 
 // Package drive provides a filesystem that allows sharing folders between
-// Tailscale nodes using WebDAV. The actual implementation of the core drive
+// Tailscale nodes using WebDAV. The actual implementation of the core Taildrive
 // functionality lives in package driveimpl. These packages are separated to
-// allow users of drive to refer to the interfaces without having a hard
-// dependency on drive, so that programs which don't actually use drive can
+// allow users of Taildrive to refer to the interfaces without having a hard
+// dependency on Taildrive, so that programs which don't actually use Taildrive can
 // avoid its transitive dependencies.
 package drive
 
@@ -14,15 +14,15 @@ import (
 	"net/http"
 )
 
-// Remote represents a remote TailFS node.
+// Remote represents a remote Taildrive node.
 type Remote struct {
 	Name      string
 	URL       string
 	Available func() bool
 }
 
-// FileSystemForLocal is the TailFS filesystem exposed to local clients. It
-// provides a unified WebDAV interface to remote TailFS shares on other nodes.
+// FileSystemForLocal is the Taildrive filesystem exposed to local clients. It
+// provides a unified WebDAV interface to remote Taildrive shares on other nodes.
 type FileSystemForLocal interface {
 	// HandleConn handles connections from local WebDAV clients
 	HandleConn(conn net.Conn, remoteAddr net.Addr) error

drive/remote.go

@@ -22,7 +22,7 @@ func AllowShareAs() bool {
 	return !DisallowShareAs && doAllowShareAs()
 }
 
-// Share configures a folder to be shared through TailFS.
+// Share configures a folder to be shared through drive.
 type Share struct {
 	// Name is how this share appears on remote nodes.
 	Name string `json:"name,omitempty"`
@@ -78,7 +78,7 @@ func CompareShares(a, b *Share) int {
 	return strings.Compare(a.Name, b.Name)
 }
 
-// FileSystemForRemote is the TailFS filesystem exposed to remote nodes. It
+// FileSystemForRemote is the drive filesystem exposed to remote nodes. It
 // provides a unified WebDAV interface to local directories that have been
 // shared.
 type FileSystemForRemote interface {