func setupUfs(t *testing.T) (workdir string, cleanup func()) {
wd := fuse.MakeTempDir()
err := os.Mkdir(wd+"/mount", 0700)
fuse.CheckSuccess(err)
err = os.Mkdir(wd+"/rw", 0700)
fuse.CheckSuccess(err)
os.Mkdir(wd+"/ro", 0700)
fuse.CheckSuccess(err)
var fses []fuse.FileSystem
fses = append(fses, fuse.NewLoopbackFileSystem(wd+"/rw"))
fses = append(fses, fuse.NewLoopbackFileSystem(wd+"/ro"))
ufs := NewUnionFs("testFs", fses, testOpts)
opts := &fuse.FileSystemOptions{
EntryTimeout: entryTtl,
AttrTimeout: entryTtl,
NegativeTimeout: entryTtl,
}
state, _, err := fuse.MountFileSystem(wd+"/mount", ufs, opts)
CheckSuccess(err)
state.Debug = true
go state.Loop(false)
return wd, func() {
state.Unmount()
os.RemoveAll(wd)
}
}
func main() {
debug := flag.Bool("debug", false, "debug on")
threaded := flag.Bool("threaded", true, "debug on")
delcache_ttl := flag.Float64("deletion_cache_ttl", 5.0, "Deletion cache TTL in seconds.")
branchcache_ttl := flag.Float64("branchcache_ttl", 5.0, "Branch cache TTL in seconds.")
deldirname := flag.String(
"deletion_dirname", "GOUNIONFS_DELETIONS", "Directory name to use for deletions.")
flag.Parse()
if len(flag.Args()) < 2 {
fmt.Println("Usage:\n main MOUNTPOINT RW-DIRECTORY RO-DIRECTORY ...")
os.Exit(2)
}
ufsOptions := unionfs.UnionFsOptions{
DeletionCacheTTLSecs: *delcache_ttl,
BranchCacheTTLSecs: *branchcache_ttl,
DeletionDirName: *deldirname,
}
ufs, err := unionfs.NewUnionFsFromRoots(flag.Args()[1:], &ufsOptions)
if err != nil {
log.Fatal("Cannot create UnionFs", err)
os.Exit(1)
}
mountState, _, err := fuse.MountFileSystem(flag.Arg(0), ufs, nil)
if err != nil {
log.Fatal("Mount fail:", err)
}
mountState.Debug = *debug
mountState.Loop(*threaded)
}
func setup(t *testing.T) (workdir string, cleanup func()) {
wd := fuse.MakeTempDir()
err := os.Mkdir(wd+"/mount", 0700)
fuse.CheckSuccess(err)
err = os.Mkdir(wd+"/store", 0700)
fuse.CheckSuccess(err)
os.Mkdir(wd+"/ro", 0700)
fuse.CheckSuccess(err)
WriteFile(wd+"/ro/file1", "file1")
WriteFile(wd+"/ro/file2", "file2")
fs := NewAutoUnionFs(wd+"/store", testAOpts)
state, conn, err := fuse.MountFileSystem(wd+"/mount", fs, &testAOpts.FileSystemOptions)
CheckSuccess(err)
state.Debug = true
conn.Debug = true
go state.Loop(false)
return wd, func() {
state.Unmount()
os.RemoveAll(wd)
}
}
func setupUfs(t *testing.T) (workdir string, cleanup func()) {
wd := fuse.MakeTempDir()
err := os.Mkdir(wd+"/mount", 0700)
fuse.CheckSuccess(err)
err = os.Mkdir(wd+"/rw", 0700)
fuse.CheckSuccess(err)
os.Mkdir(wd+"/ro", 0700)
fuse.CheckSuccess(err)
var fses []fuse.FileSystem
fses = append(fses, fuse.NewLoopbackFileSystem(wd+"/rw"))
fses = append(fses,
NewCachingFileSystem(fuse.NewLoopbackFileSystem(wd+"/ro"), 0))
ufs := NewUnionFs(fses, testOpts)
// We configure timeouts are smaller, so we can check for
// UnionFs's cache consistency.
opts := &fuse.FileSystemOptions{
EntryTimeout: .5 * entryTtl,
AttrTimeout: .5 * entryTtl,
NegativeTimeout: .5 * entryTtl,
}
state, _, err := fuse.MountFileSystem(wd+"/mount", ufs, opts)
CheckSuccess(err)
state.Debug = true
go state.Loop(false)
return wd, func() {
state.Unmount()
os.RemoveAll(wd)
}
}
func main() {
flag.Parse()
if len(flag.Args()) < 1 {
log.Fatal("Usage:\n hello MOUNTPOINT")
}
state, _, err := fuse.MountFileSystem(flag.Arg(0), &HelloFs{}, nil)
if err != nil {
log.Fatal("Mount fail: %v\n", err)
}
state.Loop(true)
}
func TestZipFs(t *testing.T) {
wd, err := os.Getwd()
CheckSuccess(err)
zfs, err := NewArchiveFileSystem(wd + "/test.zip")
if err != nil {
t.Error("NewZipArchiveFileSystem failed:", err)
}
mountPoint := fuse.MakeTempDir()
defer os.RemoveAll(mountPoint)
state, _, err := fuse.MountFileSystem(mountPoint, zfs, nil)
defer state.Unmount()
state.Debug = true
go state.Loop(false)
d, err := os.Open(mountPoint)
CheckSuccess(err)
names, err := d.Readdirnames(-1)
CheckSuccess(err)
err = d.Close()
CheckSuccess(err)
if len(names) != 2 {
t.Error("wrong length", names)
}
fi, err := os.Stat(mountPoint + "/subdir")
CheckSuccess(err)
if !fi.IsDirectory() {
t.Error("directory type", fi)
}
fi, err = os.Stat(mountPoint + "/file.txt")
CheckSuccess(err)
if !fi.IsRegular() {
t.Error("file type", fi)
}
f, err := os.Open(mountPoint + "/file.txt")
CheckSuccess(err)
b := make([]byte, 1024)
n, err := f.Read(b)
b = b[:n]
if string(b) != "hello\n" {
t.Error("content fail", b[:n])
}
f.Close()
}
func setupMzfs() (mountPoint string, cleanup func()) {
fs := NewMultiZipFs()
mountPoint = fuse.MakeTempDir()
state, _, err := fuse.MountFileSystem(mountPoint, fs, &fuse.FileSystemOptions{
EntryTimeout: testTtl,
AttrTimeout: testTtl,
NegativeTimeout: 0.0,
})
CheckSuccess(err)
state.Debug = true
go state.Loop(true)
return mountPoint, func() {
state.Unmount()
os.RemoveAll(mountPoint)
}
}
func setupFs(fs fuse.FileSystem, opts *fuse.FileSystemOptions) (string, func()) {
mountPoint := fuse.MakeTempDir()
state, _, err := fuse.MountFileSystem(mountPoint, fs, opts)
if err != nil {
panic(fmt.Sprintf("cannot mount %v", err)) // ugh - benchmark has no error methods.
}
// state.Debug = true
go state.Loop(false)
return mountPoint, func() {
err := state.Unmount()
if err != nil {
log.Println("error during unmount", err)
} else {
os.RemoveAll(mountPoint)
}
}
}
func setupZipfs() (mountPoint string, cleanup func()) {
wd, err := os.Getwd()
CheckSuccess(err)
zfs, err := NewArchiveFileSystem(wd + "/test.zip")
CheckSuccess(err)
mountPoint = fuse.MakeTempDir()
state, _, err := fuse.MountFileSystem(mountPoint, zfs, nil)
state.Debug = true
go state.Loop(false)
return mountPoint, func() {
state.Unmount()
os.RemoveAll(mountPoint)
}
}
func main() {
// Scans the arg list and sets up flags
debug := flag.Bool("debug", false, "debug on")
flag.Parse()
if flag.NArg() < 1 {
// TODO - where to get program name?
fmt.Println("usage: main MOUNTPOINT")
os.Exit(2)
}
fs := zipfs.NewMultiZipFs()
state, _, err := fuse.MountFileSystem(flag.Arg(0), fs, nil)
if err != nil {
fmt.Printf("Mount fail: %v\n", err)
os.Exit(1)
}
state.Debug = *debug
state.Loop(true)
}
func main() {
flag.Parse()
if flag.NArg() != 2 {
log.Fatalf("Usage: $0 mountpoint tarfile")
}
fp, err := os.OpenFile(flag.Arg(1), os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0600)
if err != nil {
log.Fatalf("Couldn't open tarfile: %v", err)
}
fs := tarwfs.New(fp)
state, _, err := fuse.MountFileSystem(flag.Arg(0), fuse.NewLoggingFileSystem(fs), nil)
log.Printf("State: %v\tErr: %v", state, err)
if err != nil {
log.Fatal("Mount fail: %v\n", err)
}
state.Loop(true)
fs.Unmount() // isn't getting called!
fp.Close()
}
func main() {
// Scans the arg list and sets up flags
debug := flag.Bool("debug", false, "print debugging messages.")
latencies := flag.Bool("latencies", false, "record operation latencies.")
flag.Parse()
if flag.NArg() < 2 {
fmt.Fprintf(os.Stderr, "usage: %s MOUNTPOINT ZIP-FILE\n", os.Args[0])
os.Exit(2)
}
var fs fuse.FileSystem
fs, err := zipfs.NewArchiveFileSystem(flag.Arg(1))
if err != nil {
fmt.Fprintf(os.Stderr, "NewArchiveFileSystem failed: %v\n", err)
os.Exit(1)
}
debugFs := fuse.NewFileSystemDebug()
if *latencies {
debugFs.FileSystem = fs
fs = debugFs
}
state, conn, err := fuse.MountFileSystem(flag.Arg(0), fs, nil)
if err != nil {
fmt.Printf("Mount fail: %v\n", err)
os.Exit(1)
}
if *latencies {
debugFs.AddFileSystemConnector(conn)
debugFs.AddMountState(state)
}
state.SetRecordStatistics(*latencies)
state.Debug = *debug
state.Loop(true)
}
func TestDisappearing(t *testing.T) {
// This init is like setupUfs, but we want access to the
// writable Fs.
wd := fuse.MakeTempDir()
defer os.RemoveAll(wd)
err := os.Mkdir(wd+"/mount", 0700)
fuse.CheckSuccess(err)
err = os.Mkdir(wd+"/rw", 0700)
fuse.CheckSuccess(err)
os.Mkdir(wd+"/ro", 0700)
fuse.CheckSuccess(err)
wrFs := fuse.NewLoopbackFileSystem(wd + "/rw")
var fses []fuse.FileSystem
fses = append(fses, wrFs)
fses = append(fses, fuse.NewLoopbackFileSystem(wd+"/ro"))
ufs := NewUnionFs(fses, testOpts)
opts := &fuse.FileSystemOptions{
EntryTimeout: entryTtl,
AttrTimeout: entryTtl,
NegativeTimeout: entryTtl,
}
state, _, err := fuse.MountFileSystem(wd+"/mount", ufs, opts)
CheckSuccess(err)
defer state.Unmount()
state.Debug = true
go state.Loop(true)
log.Println("TestDisappearing2")
err = ioutil.WriteFile(wd+"/ro/file", []byte("blabla"), 0644)
CheckSuccess(err)
err = os.Remove(wd + "/mount/file")
CheckSuccess(err)
oldRoot := wrFs.Root
wrFs.Root = "/dev/null"
time.Sleep(1.5 * entryTtl * 1e9)
_, err = ioutil.ReadDir(wd + "/mount")
if err == nil {
t.Fatal("Readdir should have failed")
}
log.Println("expected readdir failure:", err)
err = ioutil.WriteFile(wd+"/mount/file2", []byte("blabla"), 0644)
if err == nil {
t.Fatal("write should have failed")
}
log.Println("expected write failure:", err)
// Restore, and wait for caches to catch up.
wrFs.Root = oldRoot
time.Sleep(1.5 * entryTtl * 1e9)
_, err = ioutil.ReadDir(wd + "/mount")
if err != nil {
t.Fatal("Readdir should succeed", err)
}
err = ioutil.WriteFile(wd+"/mount/file2", []byte("blabla"), 0644)
if err != nil {
t.Fatal("write should succeed", err)
}
}
func TestMultiZipFs(t *testing.T) {
var err os.Error
wd, err := os.Getwd()
zipFile := wd + "/test.zip"
fs := NewMultiZipFs()
mountPoint := fuse.MakeTempDir()
state, _, err := fuse.MountFileSystem(mountPoint, fs, &fuse.FileSystemOptions{
EntryTimeout: testTtl,
AttrTimeout: testTtl,
NegativeTimeout: 0.0,
})
defer os.RemoveAll(mountPoint)
CheckSuccess(err)
defer state.Unmount()
state.Debug = true
go state.Loop(true)
f, err := os.Open(mountPoint + "")
CheckSuccess(err)
names, err := f.Readdirnames(-1)
CheckSuccess(err)
if len(names) != 1 || string(names[0]) != "config" {
t.Errorf("wrong names return. %v", names)
}
err = f.Close()
CheckSuccess(err)
f, err = os.Create(mountPoint + "/random")
if err == nil {
t.Error("Must fail writing in root.")
}
f, err = os.OpenFile(mountPoint+"/config/zipmount", os.O_WRONLY, 0)
if err == nil {
t.Error("Must fail without O_CREATE")
}
f, err = os.Create(mountPoint + "/config/zipmount")
CheckSuccess(err)
// Directory exists, but is empty.
fi, err := os.Lstat(mountPoint + "/zipmount")
CheckSuccess(err)
if !fi.IsDirectory() {
t.Errorf("Expect directory at /zipmount")
}
// Open the zip file.
_, err = f.Write([]byte(zipFile))
CheckSuccess(err)
_, err = f.Write([]byte(zipFile))
if err == nil {
t.Error("Must fail second write.")
}
err = f.Close()
CheckSuccess(err)
fi, err = os.Lstat(mountPoint + "/zipmount")
if !fi.IsDirectory() {
t.Errorf("Expect directory at /zipmount")
}
// Check that zipfs itself works.
fi, err = os.Stat(mountPoint + "/zipmount/subdir")
CheckSuccess(err)
if !fi.IsDirectory() {
t.Error("directory type", fi)
}
// Removing the config dir unmount
err = os.Remove(mountPoint + "/config/zipmount")
CheckSuccess(err)
// This is ugly but necessary: We don't have ways to signal
// back to FUSE that the file disappeared.
time.Sleep(1.5e9 * testTtl)
fi, err = os.Stat(mountPoint + "/zipmount")
if err == nil {
t.Error("stat should fail after unmount.", fi)
}
}