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