func (ch Chg) applyMeta(lfs zx.RWTree) error {
nd := ch.D.UsrAttrs()
for _, k := range ignoredPutAttrs {
delete(nd, k)
}
ec := lfs.Wstat(ch.D["path"], nd)
return <-ec
}
func (ch Chg) applyData(lfs zx.RWTree, rfs zx.Tree) error {
nd := ch.D.UsrAttrs()
for _, k := range ignoredPutAttrs {
delete(nd, k)
}
datc := rfs.Get(ch.D["path"], 0, zx.All, "")
dc := lfs.Put(ch.D["path"], nd, 0, datc, "")
<-dc
return cerror(dc)
}
func (ch Chg) applyAdd(lfs zx.RWTree, rfs zx.Tree, pred string, ec chan<- error) error {
var err error
gc := rfs.FindGet(ch.D["path"], pred, "", "", 0)
for g := range gc {
dprintf("get %s\n", g)
d := g.Dir
if d == nil {
break
}
for _, k := range ignoredPutAttrs {
delete(d, k)
}
if d["err"] != "" {
e := errors.New(d["err"])
perr(ec, e)
dprintf("%s: %s\n", d["path"], d["err"])
if err == nil {
err = e
}
continue
}
if g.Datac == nil && d["type"] != "d" {
g.Datac = nchan.Null
}
if d["type"] == "d" {
e := <-lfs.Mkdir(d["path"], d)
if e != nil {
perr(ec, e)
if err == nil {
err = e
}
}
continue
}
dc := lfs.Put(d["path"], d, 0, g.Datac, "")
<-dc
if e := cerror(dc); e != nil {
dprintf("%s: put: %s\n", d["path"], e)
perr(ec, e)
if err == nil {
err = e
}
}
}
close(gc)
if e := cerror(gc); e != nil {
dprintf("get: %s\n", e)
perr(ec, e)
if err == nil {
err = e
}
}
return err
}
// Make some changes in the test zx tree.
// - Touch /a/a1
// - Chmod /a/a2
// - Remove /a/b/c /a/b/c/c3
// - Create /a/n /a/n/m /a/n/m/m1
func MkZXChgs(t Fataler, fs zx.RWTree) {
TouchZX(fs, "/a/a1")
if err := <- fs.Wstat("/a/a2", zx.Dir{"mode": "0750"}); err != nil {
t.Fatalf("chmod: %s", err)
}
if err := <-fs.RemoveAll("/a/b/c"); err != nil {
t.Fatalf("rm: %s", err)
}
<-fs.Mkdir("/a", zx.Dir{"mode": "0750"})
<-fs.Mkdir("/a/n", zx.Dir{"mode": "0750"})
if err := <-fs.Mkdir("/a/n/m", zx.Dir{"mode": "0750"}); err != nil {
t.Fatalf("mkdir: %s", err)
}
err := zx.PutAll(fs, "/a/n/m/m1", zx.Dir{"mode": "0640"}, []byte("a new file\n"))
if err != nil {
t.Fatalf("new file: %s", err)
}
TouchZX(fs, "/a/n/m/m1")
TouchZX(fs, "/a/n/m")
TouchZX(fs, "/a/n")
TouchZX(fs, "/a")
}
// Make some changes in the test zx tree, another version.
// - Remove /2
// - Create /2/n2
// - Truncate /1
func MkZXChgs2(t Fataler, fs zx.RWTree) {
if err := <-fs.Remove("/2"); err != nil {
t.Fatalf("rm: %s", err)
}
<-fs.Mkdir("/2", zx.Dir{"mode": "0750"})
if err := <-fs.Mkdir("/2/n2", zx.Dir{"mode": "0750"}); err != nil {
t.Fatalf("mkdir: %s", err)
}
TouchZX(fs, "/2/n2")
TouchZX(fs, "/2")
if err := <-fs.Wstat("/1", zx.Dir{"size": "50"}); err != nil {
t.Fatalf("truncate: %s", err)
}
TouchZX(fs, "/1")
}
// see if fn has errors (permissions) or not for the given path and 1,2,4 perm. bit.
// returns xxxxxxxxxxxx where x is y or n
// for ugo and masks 777 770 700 000
// Expected result is always yyyyynynnnnn
func ugo(t Fataler, fs zx.RWTree, p string, bit uint, fn func(zx.RWTree) error) string {
err := <-fs.Wstat(p, zx.Dir{"mode": "0777"})
if err != nil {
t.Fatalf("wstat: %s", err)
}
defer func() {
// so we can later remove it
<-fs.Wstat(p, zx.Dir{"mode": "0755"})
}()
// /chkd is nemo gid1
usrs := []usr{
usr{who: "uid", ai: &auth.Info{Uid: dbg.Usr, SpeaksFor: dbg.Usr, Ok: true,
Gids: map[string]bool{}}},
usr{who: "gid", ai: &auth.Info{Uid: "gid1", SpeaksFor: dbg.Usr, Ok: true,
Gids: map[string]bool{}}},
usr{who: "oid", ai: &auth.Info{Uid: "other", SpeaksFor: dbg.Usr, Ok: true,
Gids: map[string]bool{}}},
}
shift := uint(0)
m := uint(0777)
out := ""
for i := 0; i < 4; i++ {
printf("mode %o\n", m)
err := <-fs.Wstat(p, zx.Dir{"mode": fmt.Sprintf("0%o", m)})
if err != nil {
t.Fatalf("wstat: %s", err)
}
for _, u := range usrs {
if err := fn(authfor(t, fs, u.ai)); err != nil {
out += "n"
printf("%s can't for %o\n", u.who, m)
} else {
out += "y"
printf("%s can for %o\n", u.who, m)
}
}
m &^= (bit << shift)
shift += 3
}
return out
}
// set a fake mtime that can be predicted.
func TouchZX(fs zx.RWTree, path string) error {
d := zx.Dir{}
d.SetTime("mtime", time.Unix(xt/1e9, xt%1e9))
xt += 1e9
return <-fs.Wstat(path, d)
}
func (ch Chg) applyDel(lfs zx.RWTree) error {
return <-lfs.RemoveAll(ch.D["path"])
}
func rmove(t Fataler, fs zx.RWTree, fname string) {
<-fs.Move(fname, fname+"o")
<-fs.Move(fname+"o", fname)
}
func rwstat(t Fataler, fs zx.RWTree, fname string) {
<-fs.Wstat(fname, zx.Dir{"mode": "0700", "Foo": "Bar"})
}
func rmkdir(t Fataler, fs zx.RWTree, fname string) {
<-fs.Mkdir(fname, zx.Dir{"mode": "0755"})
}
func rremove(t Fataler, fs zx.RWTree, fname string) {
<-fs.Remove(fname)
}
func mkfs(addr string, quiet bool) (zx.Tree, func(), error) {
if len(addr) == 0 {
dbg.Warn("missing address")
opts.Usage()
dbg.Fatal("usage")
}
dbp := &fs.Debug
var m, fs zx.RWTree
var fsst *zx.IOstats
var err error
var lflags, flags *zx.Flags
if _, err = os.Stat(addr); err == nil {
fs, flags, fsst, err = mklfs(addr)
} else {
fs, flags, fsst, err = mkrfs(addr)
}
if err != nil {
return nil, nil, err
}
switch {
case nocache:
dbg.Warn("%s: uncached", addr)
if xaddr != "" {
rfs.Server(fs, xaddr)
}
fn := func() {}
if sflag {
fn = func() {
fsst.Averages()
dbg.Warn("%s iostats:\n%s\n", fs.Name(), fsst)
}
}
return fs, fn, nil
case lfscache != "":
dbg.Warn("%s: lfs cache %s", addr, lfscache)
m, lflags, err = dcache()
case mlfscache != "":
dbg.Warn("%s: mdfs cache %s", addr, mlfscache)
m, lflags, err = mdcache()
default:
dbg.Warn("%s: mfs cache", addr)
m, lflags, err = mcache()
}
if err != nil {
return nil, nil, err
}
cfs.Debug = zxdebug
xfs, err := cfs.New("cfs", m, fs, rflag)
if err != nil {
return nil, nil, fmt.Errorf("cfs: %s", err)
}
xfs.Flags.Add("rdebug", &flags.Dbg)
if lflags != nil {
xfs.Flags.Add("ldebug", &lflags.Dbg)
}
xfs.Flags.Add("fdebug", &zxfs.Debug)
xfs.Flags.Add("vdebug", dbp)
xfs.Flags.Set("verbsync", !quiet)
st := &zx.IOstats{}
xfs.IOstats = st
if xaddr != "" {
rfs.Server(xfs, xaddr)
}
fn := func() {}
if sflag {
fn = func() {
st.Averages()
dbg.Warn("%s iostats:\n%s\n", xfs.Name(), st)
fsst.Averages()
dbg.Warn("%s iostats:\n%s\n", fs.Name(), fsst)
}
}
return xfs, fn, nil
}
