* http://cs.unibo.it/helm/.
*)
+open Printf;;
+
let fold_file f init fname =
let inchan = open_in fname in
let rec fold_lines' value =
in
List.fold_left (fun acc k -> f k (Hashtbl.find tbl k) acc) init sorted_keys
+let wget ?output url =
+ let flags =
+ (match output with Some file -> ["-O"; file] | None -> []) @ [url]
+ in
+ Shell.call
+ ~stdout:Shell.to_dev_null ~stderr:Shell.to_dev_null
+ [Shell.cmd "wget" flags]
+
+ (* TODO gzip and gunzip create executables file, but umask seems to be
+ correctly inherited from the shell .... boh *)
+
+ (* stderr shown as usual *)
+let gzip ?(keep = false) fname =
+ if keep then (* keep original file *)
+ Shell.call
+ ~stdout:(Shell.to_file (fname ^ ".gz"))
+ [Shell.cmd "gzip" ["-f"; "-c"; fname]]
+ else (* don't keep original file *)
+ Shell.call [Shell.cmd "gzip" ["-f"; fname]]
+
+ (* stderr shown as usual *)
+let gunzip ?(keep = false) fname =
+ if not (Pcre.pmatch ~pat:"\\.gz$" fname) then
+ failwith "gunzip: source file doesn't end with '.gz'";
+ let basename = Pcre.replace ~pat:"\\.gz$" fname in
+ if keep then (* keep original file *)
+ Shell.call
+ ~stdout:(Shell.to_file basename)
+ [Shell.cmd "gunzip" ["-f"; "-c"; fname]]
+ else (* don't keep original file *)
+ Shell.call [Shell.cmd "gunzip" ["-f"; fname]]
+
+let tempfile () =
+ let buf = Buffer.create 28 in (* strlen("/tmp/fileSzb3Mw_http_getter") *)
+ Shell.call
+ ~stdout:(Shell.to_buffer buf)
+ [Shell.cmd "tempfile" ["--suffix=_http_getter"]];
+ Pcre.replace ~pat:"\n" (Buffer.contents buf)
+
+let string_of_proc_status = function
+ | Unix.WEXITED code -> sprintf "[Exited: %d]" code
+ | Unix.WSIGNALED sg -> sprintf "[Killed: %d]" sg
+ | Unix.WSTOPPED sg -> sprintf "[Stopped: %d]" sg
+