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(* Unison file synchronizer: src/uitext.ml *)
(* Copyright 1999-2009, Benjamin C. Pierce
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*)
open Common
open Lwt
module Body : Uicommon.UI = struct
let debug = Trace.debug "ui"
let dumbtty =
Prefs.createBool "dumbtty"
(match Util.osType with
`Unix ->
(try (Unix.getenv "EMACS" <> "") with
Not_found -> false)
| _ ->
true)
"!do not change terminal settings in text UI"
("When set to \\verb|true|, this flag makes the text mode user "
^ "interface avoid trying to change any of the terminal settings. "
^ "(Normally, Unison puts the terminal in `raw mode', so that it can "
^ "do things like overwriting the current line.) This is useful, for "
^ "example, when Unison runs in a shell inside of Emacs. "
^ "\n\n"
^ "When \\verb|dumbtty| is set, commands to the user interface need to "
^ "be followed by a carriage return before Unison will execute them. "
^ "(When it is off, Unison "
^ "recognizes keystrokes as soon as they are typed.)\n\n"
^ "This preference has no effect on the graphical user "
^ "interface.")
let silent =
Prefs.createBool "silent" false "print nothing except error messages"
("When this preference is set to {\\tt true}, the textual user "
^ "interface will print nothing at all, except in the case of errors. "
^ "Setting \\texttt{silent} to true automatically sets the "
^ "\\texttt{batch} preference to {\\tt true}.")
let cbreakMode = ref None
let rawTerminal () =
match !cbreakMode with
None -> ()
| Some state ->
let newstate =
{ state with Unix.c_icanon = false; Unix.c_echo = false;
Unix.c_vmin = 1 }
in
Unix.tcsetattr Unix.stdin Unix.TCSANOW newstate
let defaultTerminal () =
match !cbreakMode with
None -> ()
| Some state ->
Unix.tcsetattr Unix.stdin Unix.TCSANOW state
let restoreTerminal() =
if Util.osType = `Unix && not (Prefs.read dumbtty) then
Sys.set_signal Sys.sigcont Sys.Signal_default;
defaultTerminal ();
cbreakMode := None
let setupTerminal() =
if Util.osType = `Unix && not (Prefs.read dumbtty) then
try
cbreakMode := Some (Unix.tcgetattr Unix.stdin);
let suspend _ =
defaultTerminal ();
Sys.set_signal Sys.sigtstp Sys.Signal_default;
Unix.kill (Unix.getpid ()) Sys.sigtstp
in
let resume _ =
Sys.set_signal Sys.sigtstp (Sys.Signal_handle suspend);
rawTerminal ()
in
Sys.set_signal Sys.sigcont (Sys.Signal_handle resume);
resume ()
with Unix.Unix_error _ ->
restoreTerminal ()
let alwaysDisplay message =
print_string message;
flush stdout
let alwaysDisplayAndLog message =
(* alwaysDisplay message;*)
Trace.log (message ^ "\n")
let display message =
if not (Prefs.read silent) then alwaysDisplay message
let displayWhenInteractive message =
if not (Prefs.read Globals.batch) then alwaysDisplay message
let getInput () =
if !cbreakMode = None then
let l = input_line stdin in
if l="" then "" else String.sub l 0 1
else
let c = input_char stdin in
let c = if c='\n' then "" else String.make 1 c in
display c;
c
let newLine () =
if !cbreakMode <> None then display "\n"
let overwrite () =
if !cbreakMode <> None then display "\r"
let rec selectAction batch actions tryagain =
let formatname = function
"" -> "<ret>"
| " " -> "<spc>"
| n -> n in
let summarizeChoices() =
display "[";
Safelist.iter
(fun (names,doc,action) ->
if (Safelist.nth names 0) = "" then
display (formatname (Safelist.nth names 1)))
actions;
display "] " in
let tryagainOrLoop() =
tryagain ();
selectAction batch actions tryagain in
let rec find n = function
[] -> raise Not_found
| (names,doc,action)::rest ->
if Safelist.mem n names then action else find n rest
in
let doAction a =
if a="?" then
(newLine ();
display "Commands:\n";
Safelist.iter (fun (names,doc,action) ->
let n = Util.concatmap " or " formatname names in
let space = String.make (max 2 (22 - String.length n)) ' ' in
display (" " ^ n ^ space ^ doc ^ "\n"))
actions;
tryagainOrLoop())
else
try find a actions () with Not_found ->
newLine ();
if a="" then
display ("No default command [type '?' for help]\n")
else
display ("Unrecognized command '" ^ String.escaped a
^ "': try again [type '?' for help]\n");
tryagainOrLoop()
in
doAction (match batch with
None ->
summarizeChoices();
getInput ()
| Some i -> i)
let alwaysDisplayDetails ri =
alwaysDisplay ((Uicommon.details2string ri " ") ^ "\n")
let displayDetails ri =
if not (Prefs.read silent) then alwaysDisplayDetails ri
let displayri ri =
let s = Uicommon.reconItem2string Path.empty ri "" ^ " " in
let s =
match ri.replicas with
Different(_,_,d,def) when !d<>def ->
let s = Util.replacesubstring s "<-?->" "<=?=>" in
let s = Util.replacesubstring s "---->" "====>" in
let s = Util.replacesubstring s "<----" "<====" in
s
| _ -> s in
match ri.replicas with
Problem _ ->
alwaysDisplay s
| Different (_,_,d,_) when !d=Conflict ->
alwaysDisplay s
| _ ->
display s
type proceed = ConfirmBeforeProceeding | ProceedImmediately
let interact rilist =
let (r1,r2) = Globals.roots() in
let (host1, host2) = root2hostname r1, root2hostname r2 in
if not (Prefs.read Globals.batch) then display ("\n" ^ Uicommon.roots2string() ^ "\n");
let rec loop prev =
function
[] -> (ConfirmBeforeProceeding, Safelist.rev prev)
| ri::rest as ril ->
let next() = loop (ri::prev) rest in
let repeat() = loop prev ril in
let ignore pat rest what =
if !cbreakMode <> None then display "\n";
display " ";
Uicommon.addIgnorePattern pat;
display (" Permanently ignoring " ^ what ^ "\n");
begin match !Prefs.profileName with None -> assert false |
Some(n) ->
display (" To un-ignore, edit "
^ (Prefs.profilePathname n)
^ " and restart " ^ Uutil.myName ^ "\n") end;
let nukeIgnoredRis =
Safelist.filter (fun ri -> not (Globals.shouldIgnore ri.path)) in
loop (nukeIgnoredRis (ri::prev)) (nukeIgnoredRis ril) in
(* This should work on most terminals: *)
let redisplayri() = overwrite (); displayri ri; display "\n" in
displayri ri;
match ri.replicas with
Problem s -> display "\n"; display s; display "\n"; next()
| Different(rc1,rc2,dir,_) ->
if Prefs.read Uicommon.auto && !dir<>Conflict then begin
display "\n"; next()
end else
let (descr, descl) =
if host1 = host2 then
"left to right", "right to left"
else
"from "^host1^" to "^host2,
"from "^host2^" to "^host1
in
if Prefs.read Globals.batch then begin
display "\n";
if not (Prefs.read Trace.terse) then
displayDetails ri
end;
selectAction
(if Prefs.read Globals.batch then Some " " else None)
[((if !dir=Conflict && not (Prefs.read Globals.batch)
then ["f"] (* Offer no default behavior if we've got
a conflict and we're in interactive mode *)
else ["";"f";" "]),
("follow " ^ Uutil.myName ^ "'s recommendation (if any)"),
fun ()->
newLine ();
if !dir = Conflict && not (Prefs.read Globals.batch)
then begin
display "No default action [type '?' for help]\n";
repeat()
end else
next());
(["I"],
("ignore this path permanently"),
(fun () ->
ignore (Uicommon.ignorePath ri.path) rest
"this path"));
(["E"],
("permanently ignore files with this extension"),
(fun () ->
ignore (Uicommon.ignoreExt ri.path) rest
"files with this extension"));
(["N"],
("permanently ignore paths ending with this name"),
(fun () ->
ignore (Uicommon.ignoreName ri.path) rest
"files with this name"));
(["m"],
("merge the versions"),
(fun () ->
dir := Merge;
redisplayri();
next()));
(["d"],
("show differences"),
(fun () ->
newLine ();
Uicommon.showDiffs ri
(fun title text ->
try
let pager = Sys.getenv "PAGER" in
restoreTerminal ();
let out = Unix.open_process_out pager in
Printf.fprintf out "\n%s\n\n%s\n\n" title text;
let _ = Unix.close_process_out out in
setupTerminal ()
with Not_found ->
Printf.printf "\n%s\n\n%s\n\n" title text)
(fun s -> Printf.printf "%s\n" s)
Uutil.File.dummy;
repeat()));
(["x"],
("show details"),
(fun () -> display "\n"; displayDetails ri; repeat()));
(["L"],
("list all suggested changes tersely"),
(fun () -> display "\n";
Safelist.iter
(fun ri -> displayri ri; display "\n ")
ril;
display "\n";
repeat()));
(["l"],
("list all suggested changes with details"),
(fun () -> display "\n";
Safelist.iter
(fun ri -> displayri ri; display "\n ";
alwaysDisplayDetails ri)
ril;
display "\n";
repeat()));
(["p";"b"],
("go back to previous item"),
(fun () ->
newLine();
match prev with
[] -> repeat()
| prevri::prevprev -> loop prevprev (prevri :: ril)));
(["g"],
("proceed immediately to propagating changes"),
(fun() ->
(ProceedImmediately, Safelist.rev_append prev ril)));
(["q"],
("exit " ^ Uutil.myName ^ " without propagating any changes"),
fun () -> raise Sys.Break);
(["/"],
("skip"),
(fun () ->
dir := Conflict;
redisplayri();
next()));
([">";"."],
("propagate from " ^ descr),
(fun () ->
dir := Replica1ToReplica2;
redisplayri();
next()));
(["<";","],
("propagate from " ^ descl),
(fun () ->
dir := Replica2ToReplica1;
redisplayri();
next()))
]
(fun () -> displayri ri)
in
loop [] rilist
let verifyMerge title text =
Printf.printf "%s\n" text;
if Prefs.read Globals.batch then
true
else begin
if Prefs.read Uicommon.confirmmerge then begin
display "Commit results of merge? ";
selectAction
None (* Maybe better: (Some "n") *)
[(["y";"g"],
"Yes: commit",
(fun() -> true));
(["n"],
"No: leave this file unchanged",
(fun () -> false));
]
(fun () -> display "Commit results of merge? ")
end else
true
end
let doTransport reconItemList =
let totalBytesToTransfer =
ref
(Safelist.fold_left
(fun l ri -> Uutil.Filesize.add l (Common.riLength ri))
Uutil.Filesize.zero reconItemList) in
let totalBytesTransferred = ref Uutil.Filesize.zero in
let t0 = Unix.gettimeofday () in
let showProgress _ b _ =
totalBytesTransferred := Uutil.Filesize.add !totalBytesTransferred b;
let v =
(Uutil.Filesize.percentageOfTotalSize
!totalBytesTransferred !totalBytesToTransfer)
in
let t1 = Unix.gettimeofday () in
let remTime =
if v <= 0. then "--:--"
else if v >= 100. then "00:00"
else
let t = truncate ((t1 -. t0) *. (100. -. v) /. v +. 0.5) in
Format.sprintf "%02d:%02d" (t / 60) (t mod 60)
in
Util.set_infos
(Format.sprintf "%s %s ETA" (Util.percent2string v) remTime)
in
if not (Prefs.read Trace.terse) && (Prefs.read Trace.debugmods = []) then
Uutil.setProgressPrinter showProgress;
Transport.logStart ();
let fFailedPaths = ref [] in
let uiWrapper ri f =
catch f
(fun e ->
match e with
Util.Transient s ->
let m = "[" ^ (Path.toString ri.path) ^ "]: " ^ s in
alwaysDisplay ("Failed " ^ m ^ "\n");
fFailedPaths := ri.path :: !fFailedPaths;
return ()
| _ ->
fail e) in
let counter = ref 0 in
let rec loop ris actions pRiThisRound =
match ris with
[] ->
actions
| ri :: rest when pRiThisRound ri ->
loop rest
(uiWrapper ri
(fun () -> (* We need different line numbers so that
transport operations are aborted independently *)
incr counter;
Transport.transportItem ri
(Uutil.File.ofLine !counter) verifyMerge)
:: actions)
pRiThisRound
| _ :: rest ->
loop rest actions pRiThisRound
in
Lwt_unix.run
(let actions = loop reconItemList []
(fun ri -> not (Common.isDeletion ri)) in
Lwt_util.join actions);
Lwt_unix.run
(let actions = loop reconItemList [] Common.isDeletion in
Lwt_util.join actions);
Transport.logFinish ();
Uutil.setProgressPrinter (fun _ _ _ -> ());
Util.set_infos "";
(Safelist.rev !fFailedPaths)
let setWarnPrinterForInitialization()=
Util.warnPrinter :=
Some(fun s ->
alwaysDisplay "Error: ";
alwaysDisplay s;
alwaysDisplay "\n";
exit Uicommon.fatalExit)
let setWarnPrinter() =
Util.warnPrinter :=
Some(fun s ->
alwaysDisplay "Warning: ";
alwaysDisplay s;
if not (Prefs.read Globals.batch) then begin
display "Press return to continue.";
selectAction None
[(["";" ";"y"],
("Continue"),
fun()->());
(["n";"q";"x"],
("Exit"),
fun()->
alwaysDisplay "\n";
restoreTerminal ();
Lwt_unix.run (Update.unlockArchives ());
exit Uicommon.fatalExit)]
(fun()-> display "Press return to continue.")
end)
let lastMajor = ref ""
let formatStatus major minor =
let s =
if major = !lastMajor then " " ^ minor
else major ^ (if minor="" then "" else "\n " ^ minor)
in
lastMajor := major;
s
let rec interactAndPropagateChanges reconItemList
: bool * bool * (Path.t list)
(* anySkipped?, anyFailures?, failingPaths *) =
let (proceed,newReconItemList) = interact reconItemList in
let (updatesToDo, skipped) =
Safelist.fold_left
(fun (howmany, skipped) ri ->
if problematic ri then (howmany, skipped + 1)
else (howmany + 1, skipped))
(0, 0) newReconItemList in
let doit() =
if not (Prefs.read Globals.batch || Prefs.read Trace.terse) then newLine();
if not (Prefs.read Trace.terse) then Trace.status "Propagating updates";
let timer = Trace.startTimer "Transmitting all files" in
let failedPaths = doTransport newReconItemList in
let failures = Safelist.length failedPaths in
Trace.showTimer timer;
if not (Prefs.read Trace.terse) then Trace.status "Saving synchronizer state";
Update.commitUpdates ();
let trans = updatesToDo - failures in
let summary =
Printf.sprintf
"Synchronization %s at %s (%d item%s transferred, %d skipped, %d failed)"
(if failures=0 then "complete" else "incomplete")
(let tm = Util.localtime (Util.time()) in
Printf.sprintf "%02d:%02d:%02d"
tm.Unix.tm_hour tm.Unix.tm_min tm.Unix.tm_sec)
trans (if trans=1 then "" else "s")
skipped
failures in
Trace.log (summary ^ "\n");
if skipped>0 then
Safelist.iter
(fun ri ->
if problematic ri then
alwaysDisplayAndLog
(" skipped: " ^ (Path.toString ri.path)))
newReconItemList;
if failures>0 then
Safelist.iter
(fun p -> alwaysDisplayAndLog (" failed: " ^ (Path.toString p)))
failedPaths;
(skipped > 0, failures > 0, failedPaths) in
if updatesToDo = 0 then begin
display "No updates to propagate\n";
(* BCP (3/09): We need to commit the archives even if there are
no updates to propagate because some files (in fact, if we've
just switched to DST on windows, a LOT of files) might have new
modtimes in the archive. *)
(* JV (5/09): Don't save the archive in repeat mode as it has some
costs and its unlikely there is much change to the archives in
this mode. *)
if Prefs.read Uicommon.repeat = "" then Update.commitUpdates ();
(skipped > 0, false, [])
end else if proceed=ProceedImmediately then begin
doit()
end else begin
displayWhenInteractive "\nProceed with propagating updates? ";
selectAction
(* BCP: I find it counterintuitive that every other prompt except this one
would expect <CR> as a default. But I got talked out of offering a default
here, because of safety considerations (too easy to press <CR> one time
too many). *)
(if Prefs.read Globals.batch then Some "y" else None)
[(["y";"g"],
"Yes: proceed with updates as selected above",
doit);
(["n"],
"No: go through selections again",
(fun () ->
Prefs.set Uicommon.auto false;
newLine();
interactAndPropagateChanges reconItemList));
(["q"],
("exit " ^ Uutil.myName ^ " without propagating any changes"),
fun () -> raise Sys.Break)
]
(fun () -> display "Proceed with propagating updates? ")
end
let checkForDangerousPath dangerousPaths =
if Prefs.read Globals.confirmBigDeletes then begin
if dangerousPaths <> [] then begin
alwaysDisplayAndLog (Uicommon.dangerousPathMsg dangerousPaths);
if Prefs.read Globals.batch then begin
alwaysDisplay "Aborting...\n"; restoreTerminal ();
exit Uicommon.fatalExit
end else begin
displayWhenInteractive "Do you really want to proceed? ";
selectAction
None
[(["y"],
"Continue",
(fun() -> ()));
(["n"; "q"; "x"; ""],
"Exit",
(fun () -> alwaysDisplay "\n"; restoreTerminal ();
exit Uicommon.fatalExit))]
(fun () -> display "Do you really want to proceed? ")
end
end
end
let synchronizeOnce() =
let showStatus path =
if path = "" then Util.set_infos "" else
let max_len = 70 in
let mid = (max_len - 3) / 2 in
let path =
let l = String.length path in
if l <= max_len then path else
String.sub path 0 (max_len - mid - 3) ^ "..." ^
String.sub path (l - mid) mid
in
let c = "-\\|/".[truncate (mod_float (4. *. Unix.gettimeofday ()) 4.)] in
Util.set_infos (Format.sprintf "%c %s" c path)
in
Trace.status "Looking for changes";
if not (Prefs.read Trace.terse) && (Prefs.read Trace.debugmods = []) then
Uutil.setUpdateStatusPrinter (Some showStatus);
let updates = Update.findUpdates() in
Uutil.setUpdateStatusPrinter None;
Util.set_infos "";
let (reconItemList, anyEqualUpdates, dangerousPaths) =
Recon.reconcileAll updates in
if reconItemList = [] then begin
(if anyEqualUpdates then
Trace.status ("Nothing to do: replicas have been changed only "
^ "in identical ways since last sync.")
else
Trace.status "Nothing to do: replicas have not changed since last sync.");
(Uicommon.perfectExit, [])
end else begin
checkForDangerousPath dangerousPaths;
let (anySkipped, anyFailures, failedPaths) =
interactAndPropagateChanges reconItemList in
let exitStatus = Uicommon.exitCode(anySkipped,anyFailures) in
(exitStatus, failedPaths)
end
let watchinterval = 10
(* FIX; Using string concatenation to accumulate characters is
pretty inefficient! *)
let charsRead = ref ""
let linesRead = ref []
let watcherchan = ref None
let suckOnWatcherFileLocal n =
Util.convertUnixErrorsToFatal
("Reading changes from watcher process in file " ^ n)
(fun () ->
(* The main loop, invoked from two places below *)
let rec loop ch =
match try Some(input_char ch) with End_of_file -> None with
None ->
let res = !linesRead in
linesRead := [];
res
| Some(c) ->
if c = '\n' then begin
linesRead := !charsRead
:: !linesRead;
charsRead := "";
loop ch
end else begin
charsRead := (!charsRead) ^ (String.make 1 c);
loop ch
end in
(* Make sure there's a file to watch, then read from it *)
match !watcherchan with
None ->
if Sys.file_exists n then begin
let ch = open_in n in
watcherchan := Some(ch);
loop ch
end else []
| Some(ch) -> loop ch
)
let suckOnWatcherFileRoot: Common.root -> string -> (string list) Lwt.t =
Remote.registerRootCmd
"suckOnWatcherFile"
(fun (fspath, n) ->
Lwt.return (suckOnWatcherFileLocal n))
let suckOnWatcherFiles n =
Safelist.concat
(Lwt_unix.run (
Globals.allRootsMap (fun r -> suckOnWatcherFileRoot r n)))
let synchronizePathsFromFilesystemWatcher () =
let watcherfilename = "" in
(* STOPPED HERE -- need to find the program using watcherosx preference and invoke it using a redirect to get the output into a temp file... *)
let rec loop failedPaths =
let newpaths = suckOnWatcherFiles watcherfilename in
if newpaths <> [] then
display (Printf.sprintf "Changed paths:\n %s\n"
(String.concat "\n " newpaths));
let p = failedPaths @ (Safelist.map Path.fromString newpaths) in
if p <> [] then begin
Prefs.set Globals.paths p;
let (exitStatus,newFailedPaths) = synchronizeOnce() in
debug (fun() -> Util.msg "Sleeping for %d seconds...\n" watchinterval);
Unix.sleep watchinterval;
loop newFailedPaths
end else begin
debug (fun() -> Util.msg "Nothing changed: sleeping for %d seconds...\n"
watchinterval);
Unix.sleep watchinterval;
loop []
end in
loop []
let synchronizeUntilNoFailures () =
let initValueOfPathsPreference = Prefs.read Globals.paths in
let rec loop triesLeft =
let (exitStatus,failedPaths) = synchronizeOnce() in
if failedPaths <> [] && triesLeft <> 0 then begin
loop (triesLeft - 1)
end else begin
Prefs.set Globals.paths initValueOfPathsPreference;
exitStatus
end in
loop (Prefs.read Uicommon.retry)
let rec synchronizeUntilDone () =
let repeatinterval =
if Prefs.read Uicommon.repeat = "" then -1 else
try int_of_string (Prefs.read Uicommon.repeat)
with Failure "int_of_string" ->
(* If the 'repeat' pref is not a number, switch modes... *)
if Prefs.read Uicommon.repeat = "watch" then
synchronizePathsFromFilesystemWatcher()
else
raise (Util.Fatal ("Value of 'repeat' preference ("
^Prefs.read Uicommon.repeat
^") should be either a number or 'watch'\n")) in
let exitStatus = synchronizeUntilNoFailures() in
if repeatinterval < 0 then
exitStatus
else begin
(* Do it again *)
Trace.status (Printf.sprintf "\nSleeping for %d seconds...\n" repeatinterval);
Unix.sleep repeatinterval;
synchronizeUntilDone ()
end
let start _ =
begin try
(* Just to make sure something is there... *)
setWarnPrinterForInitialization();
Uicommon.uiInit
(fun s -> Util.msg "%s\n%s\n" Uicommon.shortUsageMsg s; exit 1)
(fun s -> Util.msg "%s" Uicommon.shortUsageMsg; exit 1)
(fun () -> if Prefs.read silent then Prefs.set Trace.terse true;
if not (Prefs.read silent)
then Util.msg "%s\n" (Uicommon.contactingServerMsg()))
(fun () -> Some "default")
(fun () -> Util.msg "%s" Uicommon.shortUsageMsg; exit 1)
(fun () -> Util.msg "%s" Uicommon.shortUsageMsg; exit 1)
None;
(* Some preference settings imply others... *)
if Prefs.read silent then begin
Prefs.set Globals.batch true;
Prefs.set Trace.terse true;
Prefs.set dumbtty true;
Trace.sendLogMsgsToStderr := false;
end;
if Prefs.read Uicommon.repeat <> "" then begin
Prefs.set Globals.batch true;
end;
(* Tell OCaml that we want to catch Control-C ourselves, so that
we get a chance to reset the terminal before exiting *)
Sys.catch_break true;
(* Put the terminal in cbreak mode if possible *)
if not (Prefs.read Globals.batch) then setupTerminal();
setWarnPrinter();
Trace.statusFormatter := formatStatus;
let exitStatus = synchronizeUntilDone() in
(* Put the terminal back in "sane" mode, if necessary, and quit. *)
restoreTerminal();
exit exitStatus
with
e ->
restoreTerminal();
let msg = Uicommon.exn2string e in
Trace.log (msg ^ "\n");
if not !Trace.sendLogMsgsToStderr then begin
alwaysDisplay "\n";
alwaysDisplay msg;
alwaysDisplay "\n";
end;
exit Uicommon.fatalExit
end
let defaultUi = Uicommon.Text
end
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