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105 rindas
4.3 KiB
105 rindas
4.3 KiB
%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
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%% ex: ts=4 sw=4 et
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-module(rebar_prv_as).
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-behaviour(provider).
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-export([init/1,
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do/1,
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format_error/1]).
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-include("rebar.hrl").
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-define(PROVIDER, as).
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-define(DEPS, []).
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%% ===================================================================
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%% Public API
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%% ===================================================================
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-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
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init(State) ->
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State1 = rebar_state:add_provider(State, providers:create([{name, ?PROVIDER},
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{module, ?MODULE},
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{bare, true},
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{deps, ?DEPS},
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{example, "rebar3 as <profile1>,<profile2>,... <task1>, <task2>, ..."},
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{short_desc, "Higher order provider for running multiple tasks in a sequence as a certain profiles."},
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{desc, "Higher order provider for running multiple tasks in a sequence as a certain profiles."},
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{opts, [{profile, undefined, undefined, string, "Profiles to run as."}]}])),
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{ok, State1}.
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-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
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do(State) ->
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{Profiles, Tasks} = args_to_profiles_and_tasks(rebar_state:command_args(State)),
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case {Profiles, Tasks} of
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{[], _} ->
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{error, "At least one profile must be specified when using `as`"};
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{_, []} ->
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{error, "At least one task must be specified when using `as`"};
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_ ->
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warn_on_empty_profile(Profiles, State),
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State1 = rebar_state:apply_profiles(State, [list_to_atom(X) || X <- Profiles]),
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State2 = rebar_plugins:project_apps_install(State1),
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{FirstTask, FirstTaskArgs} = hd(Tasks),
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FirstTaskAtom = list_to_atom(FirstTask),
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case rebar_core:process_namespace(State2, FirstTaskAtom) of
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{ok, State3, NewTask} ->
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rebar_prv_do:do_tasks(
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[{atom_to_list(NewTask),FirstTaskArgs}|tl(Tasks)],
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State3
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);
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{error, Reason} ->
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{error, Reason}
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end
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end.
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-spec format_error(any()) -> iolist().
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format_error(Reason) ->
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io_lib:format("~p", [Reason]).
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args_to_profiles_and_tasks(Args) ->
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first_profile(Args).
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first_profile([]) -> {[], []};
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first_profile([ProfileList|Rest]) ->
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case re:split(ProfileList, ",", [{return, list}, {parts, 2}, unicode]) of
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%% `foo, bar`
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[P, ""] -> profiles(Rest, [P]);
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%% `foo,bar`
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[P, More] -> profiles([More] ++ Rest, [P]);
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%% `foo`
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[P] -> comma_or_end(Rest, [P])
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end.
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profiles([], Acc) -> {lists:reverse(Acc), rebar_utils:args_to_tasks([])};
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profiles([ProfileList|Rest], Acc) ->
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case re:split(ProfileList, ",", [{return, list}, {parts, 2}, unicode]) of
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%% `foo, bar`
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[P, ""] -> profiles(Rest, [P|Acc]);
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%% `foo,bar`
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[P, More] -> profiles([More] ++ Rest, [P|Acc]);
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%% `foo`
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[P] -> comma_or_end(Rest, [P|Acc])
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end.
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%% `, foo...`
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comma_or_end([","|Rest], Acc) ->
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profiles(Rest, Acc);
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%% `,foo...`
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comma_or_end(["," ++ Profile|Rest], Acc) ->
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profiles([Profile|Rest], Acc);
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comma_or_end(Tasks, Acc) ->
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{lists:reverse(Acc), rebar_utils:args_to_tasks(Tasks)}.
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%% If a profile is used by 'as' but has no entry under `profile` within
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%% the top level rebar.config or any project app's rebar.config print a warning.
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%% This is just to help developers, in case they forgot to define a profile but
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%% thought it was being used.
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warn_on_empty_profile(Profiles, State) ->
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ProjectApps = rebar_state:project_apps(State),
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DefinedProfiles = rebar_state:get(State, profiles, []) ++
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lists:flatten([rebar_app_info:get(AppInfo, profiles, []) || AppInfo <- ProjectApps]),
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[?WARN("No entry for profile ~ts in config.", [Profile]) ||
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Profile <- Profiles, not(lists:keymember(list_to_atom(Profile), 1, DefinedProfiles))].
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