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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et
%% -------------------------------------------------------------------
%%
%% rebar: Erlang Build Tools
%%
%% Copyright (c) 2009 Dave Smith (dizzyd@dizzyd.com)
%%
%% Permission is hereby granted, free of charge, to any person obtaining a copy
%% of this software and associated documentation files (the "Software"), to deal
%% in the Software without restriction, including without limitation the rights
%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%% copies of the Software, and to permit persons to whom the Software is
%% furnished to do so, subject to the following conditions:
%%
%% The above copyright notice and this permission notice shall be included in
%% all copies or substantial portions of the Software.
%%
%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
%% THE SOFTWARE.
%% -------------------------------------------------------------------
-module(rebar_subdirs).
-include("rebar.hrl").
-include_lib("kernel/include/file.hrl").
-export([preprocess/2]).
%% ===================================================================
%% Public API
%% ===================================================================
preprocess(Config, _) ->
%% Get the list of subdirs specified in the config (if any).
Cwd = rebar_utils:get_cwd(),
Subdirs0 = rebar_config:get_local(Config, sub_dirs, []),
Check = check_loop(Cwd),
ok = lists:foreach(Check, Subdirs0),
Subdirs = [filename:join(Cwd, Dir) || Dir <- Subdirs0],
{ok, Subdirs}.
%% ===================================================================
%% Internal functions
%% ===================================================================
check_loop(Cwd) ->
RebarConfig = filename:join(Cwd, "rebar.config"),
fun(Dir0) ->
IsSymlink = case file:read_link_info(Dir0) of
{ok, #file_info{type=symlink}} ->
{true, resolve_symlink(Dir0)};
_ ->
{false, Dir0}
end,
case IsSymlink of
{false, Dir="."} ->
?ERROR("infinite loop detected:~nsub_dirs"
" entry ~p in ~s~n", [Dir, RebarConfig]);
{true, Cwd} ->
?ERROR("infinite loop detected:~nsub_dirs"
" entry ~p in ~s is a symlink to \".\"~n",
[Dir0, RebarConfig]);
_ ->
ok
end
end.
resolve_symlink(Dir0) ->
{ok, Dir} = file:read_link(Dir0),
Dir.
|
