225 lines
7.6 KiB
OCaml
225 lines
7.6 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Objective Caml *)
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(* *)
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(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
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(* *)
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(* Copyright 1999 Institut National de Recherche en Informatique et *)
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(* en Automatique. All rights reserved. This file is distributed *)
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(* under the terms of the Q Public License version 1.0. *)
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(* *)
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(***********************************************************************)
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(* $Id$ *)
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open Format
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open Location
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open Longident
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open Parsetree
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(* Print the dependencies *)
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let load_path = ref ([] : (string * string array) list)
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let native_only = ref false
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let force_slash = ref false
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let error_occurred = ref false
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let add_to_load_path dir =
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try
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let dir = Misc.expand_directory Config.standard_library dir in
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let contents = Sys.readdir dir in
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load_path := !load_path @ [dir, contents]
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with Sys_error msg ->
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fprintf Format.err_formatter "@[Bad -I option: %s@]@." msg;
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error_occurred := true
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let concat_filename dirname filename =
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if dirname = Filename.current_dir_name then filename
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else if !force_slash then dirname ^ "/" ^ filename
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else Filename.concat dirname filename
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let find_file name =
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let uname = String.uncapitalize name in
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let rec find_in_array a pos =
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if pos >= Array.length a then None else begin
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let s = a.(pos) in
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if s = name || s = uname then Some s else find_in_array a (pos + 1)
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end in
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let rec find_in_path = function
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[] -> raise Not_found
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| (dir, contents) :: rem ->
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match find_in_array contents 0 with
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Some truename -> concat_filename dir truename
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| None -> find_in_path rem in
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find_in_path !load_path
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let find_dependency modname (byt_deps, opt_deps) =
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try
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let filename = find_file (modname ^ ".mli") in
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let basename = Filename.chop_suffix filename ".mli" in
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let optname =
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if Sys.file_exists (basename ^ ".ml")
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then basename ^ ".cmx"
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else basename ^ ".cmi" in
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((basename ^ ".cmi") :: byt_deps, optname :: opt_deps)
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with Not_found ->
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try
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let filename = find_file (modname ^ ".ml") in
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let basename = Filename.chop_suffix filename ".ml" in
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let bytename =
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basename ^ (if !native_only then ".cmx" else ".cmo") in
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(bytename :: byt_deps, (basename ^ ".cmx") :: opt_deps)
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with Not_found ->
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(byt_deps, opt_deps)
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let (depends_on, escaped_eol) = (": ", "\\\n ")
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let print_dependencies target_file deps =
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match deps with
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[] -> ()
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| _ ->
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print_string target_file; print_string depends_on;
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let rec print_items pos = function
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[] -> print_string "\n"
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| dep :: rem ->
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if pos + String.length dep <= 77 then begin
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print_string dep; print_string " ";
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print_items (pos + String.length dep + 1) rem
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end else begin
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print_string escaped_eol; print_string dep; print_string " ";
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print_items (String.length dep + 5) rem
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end in
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print_items (String.length target_file + 2) deps
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(* Optionally preprocess a source file *)
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let preprocessor = ref None
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let preprocess sourcefile =
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match !preprocessor with
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None -> sourcefile
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| Some pp ->
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flush stdout;
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let tmpfile = Filename.temp_file "camlpp" "" in
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let comm = Printf.sprintf "%s %s > %s" pp sourcefile tmpfile in
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if Sys.command comm <> 0 then begin
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Misc.remove_file tmpfile;
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Printf.eprintf "Preprocessing error\n";
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exit 2
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end;
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tmpfile
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let remove_preprocessed inputfile =
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match !preprocessor with
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None -> ()
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| Some _ -> Misc.remove_file inputfile
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(* Parse a file or get a dumped syntax tree in it *)
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exception Outdated_version
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let is_ast_file ic ast_magic =
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try
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let buffer = String.create (String.length ast_magic) in
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really_input ic buffer 0 (String.length ast_magic);
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if buffer = ast_magic then true
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else if String.sub buffer 0 9 = String.sub ast_magic 0 9 then
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raise Outdated_version
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else false
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with
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Outdated_version ->
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failwith "Ocaml and preprocessor have incompatible versions"
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| _ -> false
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let parse_use_file ic =
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if is_ast_file ic Config.ast_impl_magic_number then
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let source_file = input_value ic in
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[Ptop_def (input_value ic : Parsetree.structure)]
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else begin
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seek_in ic 0;
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let lb = Lexing.from_channel ic in
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Parse.use_file lb
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end
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let parse_interface ic =
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if is_ast_file ic Config.ast_intf_magic_number then
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let source_file = input_value ic in
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(input_value ic : Parsetree.signature)
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else begin
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seek_in ic 0;
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let lb = Lexing.from_channel ic in
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Parse.interface lb
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end
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(* Process one file *)
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let file_dependencies source_file =
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Location.input_name := source_file;
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if Sys.file_exists source_file then begin
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try
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Depend.free_structure_names := Depend.StringSet.empty;
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let input_file = preprocess source_file in
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let ic = open_in_bin input_file in
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try
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if Filename.check_suffix source_file ".ml" then begin
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let ast = parse_use_file ic in
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Depend.add_use_file Depend.StringSet.empty ast;
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let basename = Filename.chop_suffix source_file ".ml" in
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let init_deps =
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if Sys.file_exists (basename ^ ".mli")
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then let cmi_name = basename ^ ".cmi" in ([cmi_name], [cmi_name])
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else ([], []) in
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let (byt_deps, opt_deps) =
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Depend.StringSet.fold find_dependency !Depend.free_structure_names init_deps in
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print_dependencies (basename ^ ".cmo") byt_deps;
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print_dependencies (basename ^ ".cmx") opt_deps
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end else
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if Filename.check_suffix source_file ".mli" then begin
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let ast = parse_interface ic in
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Depend.add_signature Depend.StringSet.empty ast;
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let basename = Filename.chop_suffix source_file ".mli" in
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let (byt_deps, opt_deps) =
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Depend.StringSet.fold find_dependency !Depend.free_structure_names ([], []) in
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print_dependencies (basename ^ ".cmi") byt_deps
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end else
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();
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close_in ic; remove_preprocessed input_file
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with x ->
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close_in ic; remove_preprocessed input_file;
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raise x
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with x ->
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let report_err = function
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| Lexer.Error(err, range) ->
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fprintf Format.err_formatter "@[%a%a@]@."
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Location.print range Lexer.report_error err
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| Syntaxerr.Error err ->
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fprintf Format.err_formatter "@[%a@]@."
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Syntaxerr.report_error err
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| Sys_error msg ->
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fprintf Format.err_formatter "@[I/O error:@ %s@]@." msg
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| x -> raise x in
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error_occurred := true;
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report_err x
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end
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(* Entry point *)
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let usage = "Usage: ocamldep [-I <dir>] [-native] <files>"
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let _ =
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Clflags.classic := false;
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add_to_load_path Filename.current_dir_name;
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Arg.parse [
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"-I", Arg.String add_to_load_path,
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"<dir> Add <dir> to the list of include directories";
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"-native", Arg.Set native_only,
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" Generate dependencies for a pure native-code project \
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(no .cmo files)";
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"-slash", Arg.Set force_slash,
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" (for Windows) Use forward slash / instead of backslash \\ in file paths";
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"-pp", Arg.String(fun s -> preprocessor := Some s),
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"<command> Pipe sources through preprocessor <command>"
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] file_dependencies usage;
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exit (if !error_occurred then 2 else 0)
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