open Http_getter_debugger;;
open Printf;;
+let trailing_dot_gz_RE = Pcre.regexp "\\.gz$" (* for g{,un}zip *)
+let url_RE = Pcre.regexp "^([\\w.]+)(:(\\d+))?(/.*)?$"
+let http_scheme_RE = Pcre.regexp ~flags:[`CASELESS] "^http://"
+let file_scheme_RE = Pcre.regexp ~flags:[`CASELESS] "^file://"
+let dir_sep_RE = Pcre.regexp "/"
+let heading_slash_RE = Pcre.regexp "^/"
+
+let bufsiz = 16384 (* for file system I/O *)
+let tcp_bufsiz = 4096 (* for TCP I/O *)
+
let fold_file f init fname =
let inchan = open_in fname in
let rec fold_lines' value =
List.fold_left (fun acc k -> f k (Hashtbl.find tbl k) acc) init sorted_keys
let cp src dst =
- Shell.call
- ~stdout:Shell.to_dev_null ~stderr:Shell.to_dev_null
- [Shell.cmd "cp" [src; dst]]
+ let (ic, oc) = (open_in src, open_out dst) in
+ let buf = String.create bufsiz in
+ (try
+ while true do
+ let bytes = input ic buf 0 bufsiz in
+ if bytes = 0 then raise End_of_file else output oc buf 0 bytes
+ done
+ with End_of_file -> ());
+ close_in ic; close_out oc
-let file_scheme_RE = Pcre.regexp "^file://"
-let wget ?output url =
- let use_wget () =
- let flags =
- (match output with Some file -> ["-O"; file] | None -> []) @ [url]
+let parse_url url =
+ try
+ let subs =
+ Pcre.extract ~rex:url_RE (Pcre.replace ~rex:http_scheme_RE url)
in
- debug_print ("wget " ^ String.concat " " flags);
- Shell.call
- ~stdout:Shell.to_dev_null ~stderr:Shell.to_dev_null
- [Shell.cmd "wget" flags]
- in
- if Pcre.pmatch ~rex:file_scheme_RE url then begin (* file:// URL *)
- let src_fname = Pcre.replace ~rex:file_scheme_RE url in
- match output with
- | Some dst_fname -> cp src_fname dst_fname
- | None ->
- let dst_fname = Filename.basename src_fname in
- if src_fname <> dst_fname then
- cp src_fname dst_fname
- else (* src and dst are the same: do nothing *)
- ()
- end else (* other URL, pass it to wget *)
- use_wget ()
-
-let bufsiz = 16384 (* for g{,un}zip *)
-let trailing_dot_gz_RE = Pcre.regexp "\\.gz$" (* for g{,un}zip *)
+ (subs.(1),
+ (if subs.(2) = "" then 80 else int_of_string subs.(3)),
+ (if subs.(4) = "" then "/" else subs.(4)))
+ with exc ->
+ failwith
+ (sprintf "Can't parse url: %s (exception: %s)"
+ url (Printexc.to_string exc))
+let init_socket addr port =
+ let inet_addr = (Unix.gethostbyname addr).Unix.h_addr_list.(0) in
+ let sockaddr = Unix.ADDR_INET (inet_addr, port) in
+ let suck = Unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in
+ Unix.connect suck sockaddr;
+ let outchan = Unix.out_channel_of_descr suck in
+ let inchan = Unix.in_channel_of_descr suck in
+ (inchan, outchan)
+let http_get_iter_buf ~callback url =
+ let (address, port, path) = parse_url url in
+ let buf = String.create tcp_bufsiz in
+ let (inchan, outchan) = init_socket address port in
+ output_string outchan (sprintf "GET %s HTTP/1.0\r\n\r\n" path);
+ flush outchan;
+ (try
+ while true do
+ match input inchan buf 0 tcp_bufsiz with
+ | 0 -> raise End_of_file
+ | bytes when bytes = tcp_bufsiz -> (* buffer full, no need to slice it *)
+ callback buf
+ | bytes when bytes < tcp_bufsiz -> (* buffer not full, slice it *)
+ callback (String.sub buf 0 bytes)
+ | _ -> (* ( bytes < 0 ) || ( bytes > tcp_bufsiz ) *)
+ assert false
+ done
+ with End_of_file -> ());
+ close_in inchan (* close also outchan, same fd *)
+
+let wget ?output url =
+ match url with
+ | url when Pcre.pmatch ~rex:file_scheme_RE url -> (* file:// *)
+ (let src_fname = Pcre.replace ~rex:file_scheme_RE url in
+ match output with
+ | Some dst_fname -> cp src_fname dst_fname
+ | None ->
+ let dst_fname = Filename.basename src_fname in
+ if src_fname <> dst_fname then
+ cp src_fname dst_fname
+ else (* src and dst are the same: do nothing *)
+ ())
+ | url when Pcre.pmatch ~rex:http_scheme_RE url -> (* http:// *)
+ (let oc =
+ open_out (match output with Some f -> f | None -> Filename.basename url)
+ in
+ http_get_iter_buf ~callback:(fun data -> output_string oc data) url;
+ close_out oc)
+ | scheme -> (* unsupported scheme *)
+ failwith ("Http_getter_misc.wget: unsupported scheme: " ^ scheme)
let gzip ?(keep = false) fname =
debug_print (sprintf "gzipping %s (keep: %b)" fname keep);
if bytes = 0 then raise End_of_file else Gzip.output oc buf 0 bytes
done
with End_of_file -> ());
- close_in ic;
- Gzip.close_out oc;
+ close_in ic; Gzip.close_out oc;
if not keep then Sys.remove fname
let gunzip ?(keep = false) fname =
if bytes = 0 then raise End_of_file else output oc buf 0 bytes
done
with End_of_file -> ());
- Gzip.close_in ic;
- close_out oc;
+ Gzip.close_in ic; close_out oc;
if not keep then Sys.remove 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 tempfile () = Filename.temp_file "http_getter_" ""
+
+exception Mkdir_failure of string * string;; (* dirname, failure reason *)
+let dir_perm = 0o755
let mkdir ?(parents = false) dirname =
- if not (Sys.file_exists dirname) then begin
- let flags = if parents then ["-p"; dirname] else [dirname] in
- debug_print ("mkdir " ^ String.concat " " flags);
- Shell.call [Shell.cmd "mkdir" flags]
- end
+ let mkdirhier () =
+ let (pieces, hd) =
+ let split = Pcre.split ~rex:dir_sep_RE dirname in
+ if Pcre.pmatch ~rex:heading_slash_RE dirname then
+ (List.tl split, "/")
+ else
+ (split, "")
+ in
+ ignore
+ (List.fold_left
+ (fun pre dir ->
+ let next_dir =
+ sprintf "%s%s%s" pre (match pre with "/" | "" -> "" | _ -> "/") dir
+ in
+ (try
+ (match (Unix.stat next_dir).Unix.st_kind with
+ | Unix.S_DIR -> () (* dir component already exists, go on! *)
+ | _ -> (* dir component already exists but isn't a dir, abort! *)
+ raise
+ (Mkdir_failure (dirname,
+ sprintf "'%s' already exists but is not a dir" next_dir)))
+ with Unix.Unix_error (Unix.ENOENT, "stat", _) ->
+ (* dir component doesn't exists, create it and go on! *)
+ Unix.mkdir next_dir dir_perm);
+ next_dir)
+ hd pieces)
+ in
+ if parents then mkdirhier () else Unix.mkdir dirname dir_perm
let string_of_proc_status = function
| Unix.WEXITED code -> sprintf "[Exited: %d]" code
projects / helm.git / commitdiff