parent
744c182356
commit
b54c438fda
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@ -23,6 +23,8 @@ next
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- Fix attaching index.mld to documentation (#731, fixes #717 @rgrinberg)
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- Fix attaching index.mld to documentation (#731, fixes #717 @rgrinberg)
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- Scan the file system lazily (#732, fixes #718 and #228, @diml)
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1.0+beta20 (10/04/2018)
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1.0+beta20 (10/04/2018)
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-----------------------
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-----------------------
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154
src/file_tree.ml
154
src/file_tree.ml
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@ -3,25 +3,32 @@ open! Import
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module Dir = struct
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module Dir = struct
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type t =
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type t =
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{ path : Path.t
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{ path : Path.t
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; files : String.Set.t
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; sub_dirs : t String.Map.t
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; ignored : bool
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; ignored : bool
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; contents : contents Lazy.t
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}
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}
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and contents =
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{ files : String.Set.t
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; sub_dirs : t String.Map.t
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}
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let contents t = Lazy.force t.contents
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let path t = t.path
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let path t = t.path
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let files t = t.files
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let sub_dirs t = t.sub_dirs
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let ignored t = t.ignored
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let ignored t = t.ignored
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let files t = (contents t).files
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let sub_dirs t = (contents t).sub_dirs
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let file_paths t =
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let file_paths t =
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Path.Set.of_string_set t.files ~f:(Path.relative t.path)
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Path.Set.of_string_set (files t) ~f:(Path.relative t.path)
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let sub_dir_names t =
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let sub_dir_names t =
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String.Map.foldi t.sub_dirs ~init:String.Set.empty
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String.Map.foldi (sub_dirs t) ~init:String.Set.empty
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~f:(fun s _ acc -> String.Set.add acc s)
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~f:(fun s _ acc -> String.Set.add acc s)
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let sub_dir_paths t =
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let sub_dir_paths t =
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String.Map.foldi t.sub_dirs ~init:Path.Set.empty
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String.Map.foldi (sub_dirs t) ~init:Path.Set.empty
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~f:(fun s _ acc -> Path.Set.add acc (Path.relative t.path s))
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~f:(fun s _ acc -> Path.Set.add acc (Path.relative t.path s))
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let rec fold t ~traverse_ignored_dirs ~init:acc ~f =
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let rec fold t ~traverse_ignored_dirs ~init:acc ~f =
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@ -29,13 +36,13 @@ module Dir = struct
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acc
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acc
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else
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else
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let acc = f t acc in
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let acc = f t acc in
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String.Map.fold t.sub_dirs ~init:acc ~f:(fun t acc ->
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String.Map.fold (sub_dirs t) ~init:acc ~f:(fun t acc ->
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fold t ~traverse_ignored_dirs ~init:acc ~f)
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fold t ~traverse_ignored_dirs ~init:acc ~f)
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end
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end
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type t =
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type t =
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{ root : Dir.t
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{ root : Dir.t
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; dirs : Dir.t Path.Map.t
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; dirs : (Path.t, Dir.t) Hashtbl.t
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}
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}
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let root t = t.root
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let root t = t.root
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@ -47,69 +54,86 @@ let ignore_file fn ~is_directory =
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let load ?(extra_ignored_subtrees=Path.Set.empty) path =
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let load ?(extra_ignored_subtrees=Path.Set.empty) path =
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let rec walk path ~ignored : Dir.t =
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let rec walk path ~ignored : Dir.t =
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let files, sub_dirs =
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let contents = lazy (
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Path.readdir path
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let files, sub_dirs =
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|> List.filter_partition_map ~f:(fun fn ->
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Path.readdir path
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let path = Path.relative path fn in
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|> List.filter_partition_map ~f:(fun fn ->
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let is_directory = Path.is_directory path in
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let path = Path.relative path fn in
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if ignore_file fn ~is_directory then
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let is_directory = Path.is_directory path in
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Skip
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if ignore_file fn ~is_directory then
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else if is_directory then
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Skip
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Right (fn, path)
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else if is_directory then
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Right (fn, path)
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else
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Left fn)
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in
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let files = String.Set.of_list files in
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let ignored_sub_dirs =
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if not ignored && String.Set.mem files "jbuild-ignore" then
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let ignore_file = Path.relative path "jbuild-ignore" in
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let files =
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Io.lines_of_file ignore_file
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in
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let remove_subdirs index fn =
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if Filename.dirname fn = Filename.current_dir_name then
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true
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else begin
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Loc.(warn (of_pos ( Path.to_string ignore_file
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, index + 1, 0, String.length fn))
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"subdirectory expression %s ignored" fn);
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false
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end
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in
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String.Set.of_list (List.filteri ~f:remove_subdirs files)
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else
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else
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Left fn)
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String.Set.empty
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in
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in
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let files = String.Set.of_list files in
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let sub_dirs =
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let ignored_sub_dirs =
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List.map sub_dirs ~f:(fun (fn, path) ->
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if not ignored && String.Set.mem files "jbuild-ignore" then
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let ignored =
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let ignore_file = Path.relative path "jbuild-ignore" in
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ignored
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let files =
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|| String.Set.mem ignored_sub_dirs fn
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Io.lines_of_file ignore_file
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|| Path.Set.mem extra_ignored_subtrees path
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in
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in
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let remove_subdirs index fn =
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(fn, walk path ~ignored))
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if Filename.dirname fn = Filename.current_dir_name then
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|> String.Map.of_list_exn
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true
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in
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else begin
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{ Dir. files; sub_dirs })
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Loc.(warn (of_pos ( Path.to_string ignore_file
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, index + 1, 0, String.length fn))
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"subdirectory expression %s ignored" fn);
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false
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end
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in
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String.Set.of_list (List.filteri ~f:remove_subdirs files)
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else
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String.Set.empty
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in
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let sub_dirs =
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List.map sub_dirs ~f:(fun (fn, path) ->
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let ignored =
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ignored
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|| String.Set.mem ignored_sub_dirs fn
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|| Path.Set.mem extra_ignored_subtrees path
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in
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(fn, walk path ~ignored))
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|> String.Map.of_list_exn
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in
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in
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{ path
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{ path
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; files
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; contents
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; sub_dirs
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; ignored
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; ignored
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}
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}
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in
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in
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let root = walk path ~ignored:false in
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let root = walk path ~ignored:false in
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let dirs =
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let dirs = Hashtbl.create 1024 in
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Dir.fold root ~init:Path.Map.empty ~traverse_ignored_dirs:true
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Hashtbl.add dirs Path.root root;
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~f:(fun dir acc ->
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{ root; dirs }
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Path.Map.add acc dir.path dir)
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in
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{ root
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; dirs
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}
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let fold t ~traverse_ignored_dirs ~init ~f =
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let fold t ~traverse_ignored_dirs ~init ~f =
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Dir.fold t.root ~traverse_ignored_dirs ~init ~f
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Dir.fold t.root ~traverse_ignored_dirs ~init ~f
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let find_dir t path = Path.Map.find t.dirs path
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let rec find_dir t path =
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if not (Path.is_local path) then
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None
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else
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match Hashtbl.find t.dirs path with
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| Some _ as res -> res
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| None ->
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match
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let open Option.O in
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find_dir t (Path.parent path)
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>>= fun parent ->
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String.Map.find (Dir.sub_dirs parent) (Path.basename path)
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with
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| Some dir as res ->
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Hashtbl.add t.dirs path dir;
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res
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| None ->
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(* We don't cache failures in [t.dirs]. The expectation is
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that these only happen when the user writes an invalid path
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in a jbuild file, so there is no need to cache them. *)
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None
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let files_of t path =
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let files_of t path =
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match find_dir t path with
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match find_dir t path with
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@ -118,12 +142,14 @@ let files_of t path =
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Path.Set.of_string_set (Dir.files dir) ~f:(Path.relative path)
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Path.Set.of_string_set (Dir.files dir) ~f:(Path.relative path)
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let file_exists t path fn =
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let file_exists t path fn =
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match Path.Map.find t.dirs path with
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match find_dir t path with
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| None -> false
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| None -> false
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| Some { files; _ } -> String.Set.mem files fn
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| Some dir -> String.Set.mem (Dir.files dir) fn
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let dir_exists t path = Option.is_some (find_dir t path)
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let exists t path =
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let exists t path =
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Path.Map.mem t.dirs path ||
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dir_exists t path ||
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file_exists t (Path.parent path) (Path.basename path)
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file_exists t (Path.parent path) (Path.basename path)
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let files_recursively_in t ?(prefix_with=Path.root) path =
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let files_recursively_in t ?(prefix_with=Path.root) path =
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@ -1,3 +1,5 @@
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(** Dune representation of the source tree *)
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open! Import
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open! Import
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module Dir : sig
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module Dir : sig
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@ -22,10 +24,17 @@ module Dir : sig
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-> 'a
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-> 'a
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end
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end
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(** A [t] value represent a view of the source tree. It is lazily
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constructed by scanning the file system and interpreting [.dune-fs]
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files, as well as [jbuild-ignore] files for backward
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compatibility. *)
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type t
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type t
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val load : ?extra_ignored_subtrees:Path.Set.t -> Path.t -> t
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val load : ?extra_ignored_subtrees:Path.Set.t -> Path.t -> t
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(** Passing [~traverse_ignored_dirs:true] to this functions causes the
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whole source tree to be deeply scanned, including ignored
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directories. *)
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val fold
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val fold
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: t
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: t
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-> traverse_ignored_dirs:bool
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-> traverse_ignored_dirs:bool
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@ -39,7 +48,10 @@ val find_dir : t -> Path.t -> Dir.t option
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val files_of : t -> Path.t -> Path.Set.t
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val files_of : t -> Path.t -> Path.Set.t
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(** [true] iff the path is either a directory or a file *)
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val exists : t -> Path.t -> bool
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val exists : t -> Path.t -> bool
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(** [true] iff the path is a file *)
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val file_exists : t -> Path.t -> string -> bool
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val file_exists : t -> Path.t -> string -> bool
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val files_recursively_in : t -> ?prefix_with:Path.t -> Path.t -> Path.Set.t
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val files_recursively_in : t -> ?prefix_with:Path.t -> Path.t -> Path.Set.t
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Reference in New Issue