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%% -*- mode: Erlang; fill-column: 80; comment-column: 75; -*-
%%% Copyright 2012 Erlware, LLC. All Rights Reserved.
%%%
%%% This file is provided to you under the Apache License,
%%% Version 2.0 (the "License"); you may not use this file
%%% except in compliance with the License. You may obtain
%%% a copy of the License at
%%%
%%% http://www.apache.org/licenses/LICENSE-2.0
%%%
%%% Unless required by applicable law or agreed to in writing,
%%% software distributed under the License is distributed on an
%%% "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
%%% KIND, either express or implied. See the License for the
%%% specific language governing permissions and limitations
%%% under the License.
%%%---------------------------------------------------------------------------
%%% @author Eric Merritt <[email protected]>
%%% @copyright (C) 2012 Erlware, LLC.
%%%
%%% @doc Trivial utility file to help handle common tasks
-module(rcl_cmd_args).
-export([args2state/1,
format_error/1]).
-include_lib("relcool/include/relcool.hrl").
%%============================================================================
%% API
%%============================================================================
-spec args2state({error, Reason::term()} | {[getopt:option()], [string()]}) ->
{ok, {rcl_state:t(), [string()]}} |
relcool:error().
args2state({error, Detail}) ->
?RCL_ERROR({opt_parse, Detail});
args2state({ok, {Opts, Target}})
when erlang:length(Target) == 0; erlang:length(Target) == 1 ->
RelName = proplists:get_value(relname, Opts, undefined),
RelVsn = proplists:get_value(relvsn, Opts, undefined),
case create_log(Opts,
[{relname, RelName},
{relvsn, RelVsn}]) of
Error = {error, _} ->
Error;
{ok, CommandLineConfig} ->
case validate_configs(Target) of
Error = {error, _} ->
Error;
{ok, Configs} ->
{ok, rcl_state:new(CommandLineConfig, Configs)}
end
end;
args2state({ok, {_Opts, Targets}}) ->
?RCL_ERROR({invalid_targets, Targets}).
-spec format_error(Reason::term()) -> iolist().
format_error({invalid_targets, Targets}) ->
io_lib:format("One config must be specified! not ~p~n", [Targets]);
format_error({opt_parse, {invalid_option, Opt}}) ->
io_lib:format("invalid option ~s~n", [Opt]);
format_error({opt_parse, Arg}) ->
io_lib:format("~p~n", [Arg]);
format_error({invalid_option_arg, Arg}) ->
case Arg of
{goals, Goal} ->
io_lib:format("Invalid Goal argument -g ~p~n", [Goal]);
{relname, RelName} ->
io_lib:format("Invalid Release Name argument -n ~p~n", [RelName]);
{relvsn, RelVsn} ->
io_lib:format("Invalid Release Version argument -n ~p~n", [RelVsn]);
{output_dir, Outdir} ->
io_lib:format("Invalid Output Directory argument -n ~p~n", [Outdir]);
{lib_dir, LibDir} ->
io_lib:format("Invalid Library Directory argument -n ~p~n", [LibDir]);
{log_level, LogLevel} ->
io_lib:format("Invalid Library Directory argument -n ~p~n", [LogLevel])
end;
format_error({invalid_config_file, Config}) ->
io_lib:format("Invalid configuration file specified: ~s", [Config]);
format_error({failed_to_parse, Spec}) ->
io_lib:format("Unable to parse spec ~s", [Spec]);
format_error({not_directory, Dir}) ->
io_lib:format("Library directory does not exist: ~s", [Dir]);
format_error({invalid_log_level, LogLevel}) ->
io_lib:format("Invalid log level specified -V ~p, log level must be in the"
" range 0..2", [LogLevel]).
%%%===================================================================
%%% Internal Functions
%%%===================================================================
-spec validate_configs([file:filename()]) ->
{ok, [file:filename()]} | relcool:error().
validate_configs(Configs) ->
Result =
lists:foldl(fun(_Config, Err = {error, _}) ->
Err;
(Config, Acc) ->
case filelib:is_regular(Config) of
true ->
[filename:absname(Config) | Acc];
false ->
?RCL_ERROR({invalid_config_file, Config})
end
end, [], Configs),
case Result of
{error, _} ->
Result;
_ ->
%% Order may be important so lets make sure they remain in the same
%% order they came in as
{ok, lists:reverse(Result)}
end.
-spec create_log([getopt:option()], rcl_state:cmd_args()) ->
{ok, rcl_state:cmd_args()} | relcool:error().
create_log(Opts, Acc) ->
LogLevel = proplists:get_value(log_level, Opts, 0),
if
LogLevel >= 0, LogLevel =< 2 ->
create_goals(Opts, [{log, rcl_log:new(LogLevel)} | Acc]);
true ->
?RCL_ERROR({invalid_log_level, LogLevel})
end.
-spec create_goals([getopt:option()], rcl_state:cmd_args()) ->
{ok, rcl_state:cmd_args()} | relcool:error().
create_goals(Opts, Acc) ->
case convert_goals(proplists:get_all_values(goals, Opts), []) of
Error={error, _} ->
Error;
{ok, Specs} ->
create_output_dir(Opts, [{goals, Specs} | Acc])
end.
-spec convert_goals([string()], [rcl_depsolver:constraint()]) ->
{ok,[rcl_depsolver:constraint()]} |
relcool:error().
convert_goals([], Specs) ->
%% Reverse the specs because order matters to rcl_depsolver
{ok, lists:reverse(Specs)};
convert_goals([RawSpec | Rest], Acc) ->
case rcl_goal:parse(RawSpec) of
{ok, Spec} ->
convert_goals(Rest, [Spec | Acc]);
{fail, _} ->
?RCL_ERROR({failed_to_parse, RawSpec})
end.
-spec create_output_dir([getopt:option()], rcl_state:cmd_args()) ->
{ok, rcl_state:cmd_args()} | relcool:error().
create_output_dir(Opts, Acc) ->
OutputDir = proplists:get_value(output_dir, Opts, "./_rel"),
create_lib_dirs(Opts, [{output_dir, filename:absname(OutputDir)} | Acc]).
-spec create_lib_dirs([getopt:option()], rcl_state:cmd_args()) ->
{ok, rcl_state:cmd_args()} | relcool:error().
create_lib_dirs(Opts, Acc) ->
Dirs = proplists:get_all_values(lib_dir, Opts),
case check_lib_dirs(Dirs) of
Error = {error, _} ->
Error;
ok ->
create_root_dir(Opts, [{lib_dirs, [filename:absname(Dir) || Dir <- Dirs]} | Acc])
end.
-spec create_root_dir([getopt:option()], rcl_state:cmd_args()) ->
{ok, rcl_state:cmd_args()} | relcool:error().
create_root_dir(Opts, Acc) ->
Dir = proplists:get_value(root_dir, Opts, undefined),
case Dir of
undefined ->
{ok, Cwd} = file:get_cwd(),
create_disable_default_libs(Opts, [{root_dir, Cwd} | Acc]);
_ ->
create_disable_default_libs(Opts, [{root_dir, Dir} | Acc])
end.
-spec create_disable_default_libs([getopt:option()], rcl_state:cmd_args()) ->
{ok, rcl_state:cmd_args()} | relcool:error().
create_disable_default_libs(Opts, Acc) ->
Def = proplists:get_value(disable_default_libs, Opts, false),
{ok, [{disable_default_libs, Def} | Acc]}.
-spec check_lib_dirs([string()]) -> ok | relcool:error().
check_lib_dirs([]) ->
ok;
check_lib_dirs([Dir | Rest]) ->
case filelib:is_dir(Dir) of
false ->
?RCL_ERROR({not_directory, Dir});
true ->
check_lib_dirs(Rest)
end.
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