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%% -------------------------------------------------------------------
%%
%% 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_config).
-export([new/0, new/1,
get/3, get_local/3, get_list/3,
get_all/2,
set/3,
set_global/2, get_global/2,
is_verbose/0]).
-include("rebar.hrl").
-record(config, { dir,
opts }).
%% ===================================================================
%% Public API
%% ===================================================================
new() ->
#config { dir = rebar_utils:get_cwd(),
opts = []}.
new(ParentConfig) ->
%% Load terms from rebar.config, if it exists
Dir = rebar_utils:get_cwd(),
ConfigFile = filename:join([Dir, "rebar.config"]),
case file:consult(ConfigFile) of
{ok, Terms} ->
%% Found a config file with some terms. We need to be able to
%% distinguish between local definitions (i.e. from the file
%% in the cwd) and inherited definitions. To accomplish this,
%% we use a marker in the proplist (since order matters) between
%% the new and old defs.
Opts = Terms ++ [local] ++ [Opt || Opt <- ParentConfig#config.opts, Opt /= local];
{error, enoent} ->
Opts = [local] ++ [Opt || Opt <- ParentConfig#config.opts, Opt /= local];
Other ->
Opts = undefined, % Keep erlc happy
?ABORT("Failed to load ~s: ~p\n", [ConfigFile, Other])
end,
#config { dir = Dir, opts = Opts }.
get(Config, Key, Default) ->
proplists:get_value(Key, Config#config.opts, Default).
get_list(Config, Key, Default) ->
get(Config, Key, Default).
get_local(Config, Key, Default) ->
proplists:get_value(Key, local_opts(Config#config.opts, []), Default).
get_all(Config, Key) ->
proplists:get_all_values(Key, Config#config.opts).
set(Config, Key, Value) ->
Opts = proplists:delete(Key, Config#config.opts),
Config#config { opts = [{Key, Value} | Opts] }.
set_global(Key, Value) ->
application:set_env(rebar_global, Key, Value).
get_global(Key, Default) ->
case application:get_env(rebar_global, Key) of
undefined ->
Default;
{ok, Value} ->
Value
end.
is_verbose() ->
case get_global(verbose, "0") of
"1" ->
true;
_ ->
false
end.
%% ===================================================================
%% Internal functions
%% ===================================================================
local_opts([], Acc) ->
lists:reverse(Acc);
local_opts([local | _Rest], Acc) ->
lists:reverse(Acc);
local_opts([Item | Rest], Acc) ->
local_opts(Rest, [Item | Acc]).
|
