type file_status = {action : file_action,
domain : string,
+ dir : string,
file : string}
-
+
val fileHandler = ref (fn _ : file_status => ())
val preHandler = ref (fn () => ())
val postHandler = ref (fn () => ())
end
fun handleChanges fs = (!preHandler ();
- app (!fileHandler) fs;
+ app (fn recd as {action, file, ...} =>
+ (!fileHandler recd;
+ if action = Delete andalso Posix.FileSys.access (file, []) then
+ OS.FileSys.remove file
+ else
+ ())) fs;
!postHandler ())
+fun shell ss = OS.Process.isSuccess (OS.Process.system (String.concat ss))
+
+fun shellF (ss, msg) =
+ let
+ val s = String.concat ss
+ in
+ if OS.Process.isSuccess (OS.Process.system s) then
+ ()
+ else
+ ErrorMsg.error NONE (msg s)
+ end
+
+fun hostname () =
+ let
+ val inf = TextIO.openIn "/etc/hostname"
+ in
+ case TextIO.inputLine inf of
+ NONE => (TextIO.closeIn inf; raise Fail "No line in /etc/hostname")
+ | SOME line => (TextIO.closeIn inf; String.substring (line, 0, size line - 1))
+ end
+
+fun concatTo p fname =
+ let
+ fun visitDir dname =
+ let
+ val dir = Posix.FileSys.opendir dname
+
+ fun loop () =
+ case Posix.FileSys.readdir dir of
+ NONE => Posix.FileSys.closedir dir
+ | SOME fname' =>
+ let
+ val path = OS.Path.joinDirFile {dir = dname, file = fname'}
+ in
+ if Posix.FileSys.ST.isDir (Posix.FileSys.stat path) then
+ visitDir path
+ else if p fname' then
+ shellF ([Config.cat, " ", path, " >>", fname],
+ fn cl => "Error concatenating: " ^ cl)
+ else
+ ();
+ loop ()
+ end
+ in
+ loop ()
+ end
+ in
+ TextIO.closeOut (TextIO.openOut fname);
+ visitDir (OS.Path.joinDirFile {dir = Config.resultRoot, file = hostname ()})
+ end
+
+fun enumerateTo p sep fname =
+ let
+ val outf = TextIO.openOut fname
+
+ val first = ref true
+ val baseLen = length (String.fields (fn ch => ch = #"/") Config.resultRoot) + 1
+
+ fun visitDir dname =
+ let
+ val dir = Posix.FileSys.opendir dname
+
+ fun loop () =
+ case Posix.FileSys.readdir dir of
+ NONE => Posix.FileSys.closedir dir
+ | SOME fname' =>
+ let
+ val path = OS.Path.joinDirFile {dir = dname, file = fname'}
+ in
+ if Posix.FileSys.ST.isDir (Posix.FileSys.stat path) then
+ visitDir path
+ else if p fname' then
+ let
+ val toks = String.fields (fn ch => ch = #"/") dname
+ val toks = List.drop (toks, baseLen)
+ val dom = String.concatWith "." (rev toks)
+ in
+ if !first then
+ first := false
+ else
+ TextIO.output (outf, sep);
+ TextIO.output (outf, dom)
+ end
+ else
+ ();
+ loop ()
+ end
+ in
+ loop ()
+ end
+ in
+ visitDir (OS.Path.joinDirFile {dir = Config.resultRoot, file = hostname ()});
+ TextIO.closeOut outf
+ end
+
+fun readList fname =
+ let
+ val inf = TextIO.openIn fname
+
+ fun loop acc =
+ case TextIO.inputLine inf of
+ NONE => rev acc
+ | SOME line => loop (String.substring (line, 0, size line - 1) :: acc)
+ in
+ loop []
+ before TextIO.closeIn inf
+ end
+
+fun writeList (fname, ls) =
+ let
+ val outf = TextIO.openOut fname
+ in
+ app (fn s => (TextIO.output (outf, s);
+ TextIO.output1 (outf, #"\n"))) ls;
+ TextIO.closeOut outf
+ end
+
+fun lineInFile fname line =
+ let
+ val inf = TextIO.openIn fname
+ val line' = line ^ "\n"
+
+ fun loop () =
+ case TextIO.inputLine inf of
+ NONE => false
+ | SOME line => line = line' orelse loop ()
+ in
+ loop ()
+ before TextIO.closeIn inf
+ end handle IO.Io _ => false
+
+fun inGroup {user, group} =
+ List.exists (fn x => x = user)
+ (Posix.SysDB.Group.members (Posix.SysDB.getgrnam group))
+ handle OS.SysErr _ => false
+
+fun mkDirAll dir = ignore (OS.Process.system ("mkdir -p " ^ dir))
+
+fun remove (ls, x) = List.filter (fn y => y <> x) ls
+fun removeDups ls = List.foldr (fn (x, ls) =>
+ if List.exists (fn y => y = x) ls then
+ ls
+ else
+ x :: ls) [] ls
+
+fun copyDirCreate {from, to} =
+ (mkDirAll to;
+ if Posix.FileSys.access (from, []) then
+ ignore (OS.Process.system ("cp -r " ^ from ^ " " ^ to))
+ else
+ ())
+
+fun moveDirCreate {from, to} =
+ (mkDirAll to;
+ if Posix.FileSys.access (from, []) then
+ ignore (OS.Process.system ("mv " ^ from ^ " " ^ to))
+ else
+ ())
+
end
HCoop / hcoop / domtool2.git / blobdiff