mirror of
https://github.com/restic/restic.git
synced 2024-12-24 00:37:28 +00:00
141 lines
3.4 KiB
Go
141 lines
3.4 KiB
Go
package fstestutil
|
|
|
|
import (
|
|
"errors"
|
|
"io/ioutil"
|
|
"log"
|
|
"os"
|
|
"testing"
|
|
"time"
|
|
|
|
"bazil.org/fuse"
|
|
"bazil.org/fuse/fs"
|
|
)
|
|
|
|
// Mount contains information about the mount for the test to use.
|
|
type Mount struct {
|
|
// Dir is the temporary directory where the filesystem is mounted.
|
|
Dir string
|
|
|
|
Conn *fuse.Conn
|
|
Server *fs.Server
|
|
|
|
// Error will receive the return value of Serve.
|
|
Error <-chan error
|
|
|
|
done <-chan struct{}
|
|
closed bool
|
|
}
|
|
|
|
// Close unmounts the filesystem and waits for fs.Serve to return. Any
|
|
// returned error will be stored in Err. It is safe to call Close
|
|
// multiple times.
|
|
func (mnt *Mount) Close() {
|
|
if mnt.closed {
|
|
return
|
|
}
|
|
mnt.closed = true
|
|
for tries := 0; tries < 1000; tries++ {
|
|
err := fuse.Unmount(mnt.Dir)
|
|
if err != nil {
|
|
// TODO do more than log?
|
|
log.Printf("unmount error: %v", err)
|
|
time.Sleep(10 * time.Millisecond)
|
|
continue
|
|
}
|
|
break
|
|
}
|
|
<-mnt.done
|
|
mnt.Conn.Close()
|
|
os.Remove(mnt.Dir)
|
|
}
|
|
|
|
// MountedFunc mounts a filesystem at a temporary directory. The
|
|
// filesystem used is constructed by calling a function, to allow
|
|
// storing fuse.Conn and fs.Server in the FS.
|
|
//
|
|
// It also waits until the filesystem is known to be visible (OS X
|
|
// workaround).
|
|
//
|
|
// After successful return, caller must clean up by calling Close.
|
|
func MountedFunc(fn func(*Mount) fs.FS, conf *fs.Config, options ...fuse.MountOption) (*Mount, error) {
|
|
dir, err := ioutil.TempDir("", "fusetest")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
c, err := fuse.Mount(dir, options...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
server := fs.New(c, conf)
|
|
done := make(chan struct{})
|
|
serveErr := make(chan error, 1)
|
|
mnt := &Mount{
|
|
Dir: dir,
|
|
Conn: c,
|
|
Server: server,
|
|
Error: serveErr,
|
|
done: done,
|
|
}
|
|
filesys := fn(mnt)
|
|
go func() {
|
|
defer close(done)
|
|
serveErr <- server.Serve(filesys)
|
|
}()
|
|
|
|
select {
|
|
case <-mnt.Conn.Ready:
|
|
if err := mnt.Conn.MountError; err != nil {
|
|
return nil, err
|
|
}
|
|
return mnt, nil
|
|
case err = <-mnt.Error:
|
|
// Serve quit early
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return nil, errors.New("Serve exited early")
|
|
}
|
|
}
|
|
|
|
// Mounted mounts the fuse.Server at a temporary directory.
|
|
//
|
|
// It also waits until the filesystem is known to be visible (OS X
|
|
// workaround).
|
|
//
|
|
// After successful return, caller must clean up by calling Close.
|
|
func Mounted(filesys fs.FS, conf *fs.Config, options ...fuse.MountOption) (*Mount, error) {
|
|
fn := func(*Mount) fs.FS { return filesys }
|
|
return MountedFunc(fn, conf, options...)
|
|
}
|
|
|
|
// MountedFuncT mounts a filesystem at a temporary directory,
|
|
// directing it's debug log to the testing logger.
|
|
//
|
|
// See MountedFunc for usage.
|
|
//
|
|
// The debug log is not enabled by default. Use `-fuse.debug` or call
|
|
// DebugByDefault to enable.
|
|
func MountedFuncT(t testing.TB, fn func(*Mount) fs.FS, conf *fs.Config, options ...fuse.MountOption) (*Mount, error) {
|
|
if conf == nil {
|
|
conf = &fs.Config{}
|
|
}
|
|
if debug && conf.Debug == nil {
|
|
conf.Debug = func(msg interface{}) {
|
|
t.Logf("FUSE: %s", msg)
|
|
}
|
|
}
|
|
return MountedFunc(fn, conf, options...)
|
|
}
|
|
|
|
// MountedT mounts the filesystem at a temporary directory,
|
|
// directing it's debug log to the testing logger.
|
|
//
|
|
// See Mounted for usage.
|
|
//
|
|
// The debug log is not enabled by default. Use `-fuse.debug` or call
|
|
// DebugByDefault to enable.
|
|
func MountedT(t testing.TB, filesys fs.FS, conf *fs.Config, options ...fuse.MountOption) (*Mount, error) {
|
|
fn := func(*Mount) fs.FS { return filesys }
|
|
return MountedFuncT(t, fn, conf, options...)
|
|
}
|