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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(rebar3).
-export([main/1,
run/2,
global_option_spec_list/0,
init_config/0,
init_config1/1,
set_options/2,
parse_args/1,
version/0,
log_level/0]).
-include("rebar.hrl").
%% ====================================================================
%% Public API
%% ====================================================================
%% escript Entry point
main(Args) ->
case catch(run(Args)) of
{ok, _State} ->
ok;
rebar_abort ->
rebar_utils:delayed_halt(1);
{error, rebar_abort} ->
rebar_utils:delayed_halt(1);
{error, {Module, Reason}} ->
case code:which(Module) of
non_existing ->
?ERROR("Uncaught error in rebar_core. Run with DEBUG=1 to see stacktrace~n", []),
?DEBUG("Uncaught error: ~p ~p~n", [Module, Reason]);
_ ->
?ERROR(Module:format_error(Reason, []), [])
end,
rebar_utils:delayed_halt(1);
{error, Error} when is_list(Error) ->
?ERROR(Error++"~n", []),
rebar_utils:delayed_halt(1);
Error ->
%% Nothing should percolate up from rebar_core;
%% Dump this error to console
?ERROR("Uncaught error in rebar_core. Run with DEBUG=1 to see stacktrace~n", []),
?DEBUG("Uncaught error: ~p~n", [Error]),
rebar_utils:delayed_halt(1)
end.
%% Erlang-API entry point
run(BaseState, Command) ->
_ = application:load(rebar),
BaseState1 = rebar_state:set(BaseState, task, Command),
run_aux(BaseState1, [Command]).
%% ====================================================================
%% Internal functions
%% ====================================================================
run(RawArgs) ->
ok = load_rebar_app(),
BaseConfig = init_config(),
{BaseConfig1, _Args1} = set_options(BaseConfig, {[], []}),
run_aux(BaseConfig1, RawArgs).
load_rebar_app() ->
%% Pre-load the rebar app so that we get default configuration
ok = application:load(rebar).
init_config() ->
%% Initialize logging system
Verbosity = log_level(),
ok = rebar_log:init(command_line, Verbosity),
Config = case os:getenv("REBAR_CONFIG") of
false ->
rebar_config:consult_file(?DEFAULT_CONFIG_FILE);
ConfigFile ->
rebar_config:consult_file(ConfigFile)
end,
Config1 = case rebar_config:consult_file(?LOCK_FILE) of
[D] ->
[{locks, D} | Config];
_ ->
Config
end,
%% If $HOME/.rebar/config exists load and use as global config
GlobalConfigFile = filename:join([os:getenv("HOME"), ".rebar", "config"]),
State = case filelib:is_regular(GlobalConfigFile) of
true ->
?DEBUG("Load global config file ~p~n",
[GlobalConfigFile]),
GlobalConfig = rebar_state:new(rebar_config:consult_file(GlobalConfigFile)),
rebar_state:new(GlobalConfig, Config1);
false ->
rebar_state:new(Config1)
end,
%% Initialize vsn cache
rebar_state:set(State, vsn_cache, dict:new()).
init_config1(BaseConfig) ->
%% Determine the location of the rebar executable; important for pulling
%% resources out of the escript
try
ScriptName = filename:absname(escript:script_name()),
rebar_state:set(BaseConfig, escript, ScriptName)
catch
_:_ ->
BaseConfig
end.
run_aux(State, RawArgs) ->
%% Make sure crypto is running
case crypto:start() of
ok -> ok;
{error,{already_started,crypto}} -> ok
end,
application:start(asn1),
application:start(public_key),
application:start(ssl),
inets:start(),
State1 = init_config1(State),
code:add_pathsa([filename:join(rebar_utils:get_cwd(), "plugins")]),
%% Process each command, resetting any state between each one
State2 = rebar_state:set(State1, base_dir, filename:absname(rebar_state:dir(State1))),
{ok, Providers} = application:get_env(rebar, providers),
{ok, PluginProviders, State3} = rebar_plugins:install(State2),
rebar_core:update_code_path(State3),
State4 = rebar_state:create_logic_providers(Providers++PluginProviders, State3),
{Task, Args} = parse_args(RawArgs),
rebar_core:process_command(rebar_state:command_args(State4, Args), list_to_atom(Task)).
%%
%% Parse command line arguments using getopt and also filtering out any
%% key=value pairs. What's left is the list of commands to run
%%
parse_args([]) ->
parse_args(["help"]);
parse_args([H | Rest]) when H =:= "-h"
; H =:= "--help" ->
parse_args(["help" | Rest]);
parse_args([H | Rest]) when H =:= "-v"
; H =:= "--version" ->
parse_args(["version" | Rest]);
parse_args([RawTask | RawRest]) ->
{RawTask, RawRest}.
set_options(State, {Options, NonOptArgs}) ->
GlobalDefines = proplists:get_all_values(defines, Options),
State1 = rebar_state:set(State, defines, GlobalDefines),
%% Set global variables based on getopt options
State2 = set_global_flag(State1, Options, force),
Task = proplists:get_value(task, Options, "help"),
{rebar_state:set(State2, task, Task), NonOptArgs}.
%%
%% get log level based on getopt option
%%
log_level() ->
case os:getenv("QUIET") of
false ->
DefaultLevel = rebar_log:default_level(),
case os:getenv("DEBUG") of
false ->
DefaultLevel;
_ ->
DefaultLevel + 3
end;
_ ->
rebar_log:error_level()
end.
%%
%% show version information and halt
%%
version() ->
{ok, Vsn} = application:get_key(rebar, vsn),
?CONSOLE("rebar ~s on Erlang/OTP ~s Erts ~s~n",
[Vsn, erlang:system_info(otp_release), erlang:system_info(version)]).
%%
%% set global flag based on getopt option boolean value
%%
set_global_flag(State, Options, Flag) ->
Value = case proplists:get_bool(Flag, Options) of
true ->
"1";
false ->
"0"
end,
rebar_state:set(State, Flag, Value).
%%
%% options accepted via getopt
%%
global_option_spec_list() ->
[
%% {Name, ShortOpt, LongOpt, ArgSpec, HelpMsg}
{help, $h, "help", undefined, "Print this help."},
%{verbose, $v, "verbose", integer, "Verbosity level (-v, -vv)."},
{version, $V, "version", undefined, "Show version information."},
%{config, $C, "config", string, "Rebar config file to use."},
{task, undefined, undefined, string, "Task to run."}
].
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