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%% -*- tab-width: 4;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_app_utils).
-export([is_app_dir/0, is_app_dir/1,
app_name/1,
app_applications/1,
app_vsn/1]).
-export([load_app_file/1]). % TEMPORARY
-include("rebar.hrl").
%% ===================================================================
%% Public API
%% ===================================================================
is_app_dir() ->
is_app_dir(rebar_util:get_cwd()).
is_app_dir(Dir) ->
Fname = filename:join([Dir, "ebin/*.app"]),
case filelib:wildcard(Fname) of
[AppFile] ->
{true, AppFile};
_ ->
false
end.
app_name(AppFile) ->
case load_app_file(AppFile) of
{ok, AppName, _} ->
AppName;
{error, Reason} ->
?ABORT("Failed to extract name from ~s: ~p\n",
[AppFile, Reason])
end.
app_applications(AppFile) ->
case load_app_file(AppFile) of
{ok, _, AppInfo} ->
proplists:get_value(applications, AppInfo);
{error, Reason} ->
?ABORT("Failed to extract applications from ~s: ~p\n",
[AppFile, Reason])
end.
app_vsn(AppFile) ->
case load_app_file(AppFile) of
{ok, _, AppInfo} ->
proplists:get_value(vsn, AppInfo);
{error, Reason} ->
?ABORT("Failed to extract vsn from ~s: ~p\n",
[AppFile, Reason])
end.
%% ===================================================================
%% Internal functions
%% ===================================================================
load_app_file(Filename) ->
case erlang:get({app_file, Filename}) of
undefined ->
case file:consult(Filename) of
{ok, [{application, AppName, AppData}]} ->
erlang:put({app_file, Filename}, {AppName, AppData}),
{ok, AppName, AppData};
{error, Reason} ->
{error, Reason};
Other ->
{error, {unexpected_terms, Other}}
end;
{AppName, AppData} ->
{ok, AppName, AppData}
end.
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