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+%% -*- erlang-indent-level: 4; indent-tabs-mode: nil; fill-column: 80 -*-
+%%% 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 This module represents useful, relevant information about an
+%%% application. The relevant information is.
+%%%
+%%% <ul>
+%%% <li> Name - The application name as an atom </li>
+%%% <li> Vsn - The application version as a list </li>
+%%% <li> The root directory of the application. The directory that contains the
+%%% ebin/src/priv etc </li>
+%%% <li> Active Deps - The Active or 'application' dependencies of the OTP
+%%% App. That is the things in the 'applications' property of the application
+%%% metadata </li>
+%%% <li> Library Deps - The Inactive or Library dependencies of the ATP
+%%% app. That is the things in the 'included_applications property of the
+%%% application metadata.
+%%% </ul>
+%%%
+-module(rcl_app_info).
+
+-export([new/0,
+ new/5,
+ name/1,
+ name/2,
+ vsn/1,
+ vsn/2,
+ vsn_as_string/1,
+ dir/1,
+ dir/2,
+ active_deps/1,
+ active_deps/2,
+ library_deps/1,
+ library_deps/2,
+ link/1,
+ link/2,
+ format_error/1,
+ format/2,
+ format/1]).
+
+-export_type([t/0]).
+
+-include_lib("relcool/include/relcool.hrl").
+
+-record(app_info_t, {name :: atom(),
+ vsn :: ec_semver:semver(),
+ dir :: file:name(),
+ link=false :: boolean(),
+ active_deps=[]:: [atom()],
+ library_deps=[] :: [atom()]}).
+
+%%============================================================================
+%% types
+%%============================================================================
+-opaque t() :: record(app_info_t).
+
+%%============================================================================
+%% API
+%% ============================================================================
+%% @doc Build a new, empty, app info value. This is not of a lot of use and you
+%% probably wont be doing this much.
+-spec new() -> {ok, t()}.
+new() ->
+ {ok, #app_info_t{}}.
+
+%% @doc build a complete version of the app info with all fields set.
+-spec new(atom(), string(), file:name(), [atom()], [atom()]) ->
+ {ok, t()} | relcool:error().
+new(AppName, Vsn, Dir, ActiveDeps, LibraryDeps) ->
+ new(AppName, Vsn, Dir, ActiveDeps, LibraryDeps, false).
+
+%% @doc build a complete version of the app info with all fields set.
+-spec new(atom(), string(), file:name(), [atom()], [atom()], boolean()) ->
+ {ok, t()} | relcool:error().
+new(AppName, Vsn, Dir, ActiveDeps, LibraryDeps, Link)
+ when erlang:is_atom(AppName),
+ erlang:is_list(ActiveDeps),
+ erlang:is_list(LibraryDeps) ->
+ case parse_version(Vsn) of
+ {fail, _} ->
+ ?RCL_ERROR({vsn_parse, AppName});
+ ParsedVsn ->
+ {ok, #app_info_t{name=AppName, vsn=ParsedVsn, dir=Dir,
+ active_deps=ActiveDeps,
+ library_deps=LibraryDeps,
+ link=Link}}
+ end.
+
+-spec name(t()) -> atom().
+name(#app_info_t{name=Name}) ->
+ Name.
+
+-spec name(t(), atom()) -> t().
+name(AppInfo=#app_info_t{}, AppName)
+ when erlang:is_atom(AppName) ->
+ AppInfo#app_info_t{name=AppName}.
+
+-spec vsn(t()) -> ec_semver:semver().
+vsn(#app_info_t{vsn=Vsn}) ->
+ Vsn.
+
+-spec vsn_as_string(t()) -> string().
+vsn_as_string(#app_info_t{vsn=Vsn}) ->
+ erlang:binary_to_list(erlang:iolist_to_binary(ec_semver:format(Vsn))).
+
+-spec vsn(t(), string()) -> {ok, t()} | relcool:error().
+vsn(AppInfo=#app_info_t{name=AppName}, AppVsn)
+ when erlang:is_list(AppVsn) ->
+ case parse_version(AppVsn) of
+ {fail, _} ->
+ ?RCL_ERROR({vsn_parse, AppName});
+ ParsedVsn ->
+ {ok, AppInfo#app_info_t{vsn=ParsedVsn}}
+ end.
+
+-spec dir(t()) -> file:name().
+dir(#app_info_t{dir=Dir}) ->
+ Dir.
+-spec dir(t(), file:name()) -> t().
+dir(AppInfo=#app_info_t{}, Dir) ->
+ AppInfo#app_info_t{dir=Dir}.
+
+-spec active_deps(t()) -> [atom()].
+active_deps(#app_info_t{active_deps=Deps}) ->
+ Deps.
+-spec active_deps(t(), [atom()]) -> t().
+active_deps(AppInfo=#app_info_t{}, ActiveDeps)
+ when erlang:is_list(ActiveDeps) ->
+ AppInfo#app_info_t{active_deps=ActiveDeps}.
+
+-spec library_deps(t()) -> [atom()].
+library_deps(#app_info_t{library_deps=Deps}) ->
+ Deps.
+
+-spec library_deps(t(), [atom()]) -> t().
+library_deps(AppInfo=#app_info_t{}, LibraryDeps)
+ when erlang:is_list(LibraryDeps) ->
+ AppInfo#app_info_t{library_deps=LibraryDeps}.
+
+-spec link(t()) -> boolean().
+link(#app_info_t{link=Link}) ->
+ Link.
+
+-spec link(t(), boolean()) -> t().
+link(AppInfo, NewLink) ->
+ AppInfo#app_info_t{link=NewLink}.
+
+-spec format_error(Reason::term()) -> iolist().
+format_error({vsn_parse, AppName}) ->
+ io_lib:format("Error parsing version for ~p",
+ [AppName]).
+
+-spec format(t()) -> iolist().
+format(AppInfo) ->
+ format(0, AppInfo).
+
+-spec format(non_neg_integer(), t()) -> iolist().
+format(Indent, #app_info_t{name=Name, vsn=Vsn, dir=Dir,
+ active_deps=Deps, library_deps=LibDeps,
+ link=Link}) ->
+ [rcl_util:indent(Indent), erlang:atom_to_list(Name), "-", ec_semver:format(Vsn),
+ ": ", Dir, "\n",
+ rcl_util:indent(Indent + 1), "Symlink: ", erlang:atom_to_list(Link), "\n",
+ rcl_util:indent(Indent + 1), "Active Dependencies:\n",
+ [[rcl_util:indent(Indent + 2), erlang:atom_to_list(Dep), ",\n"] || Dep <- Deps],
+ rcl_util:indent(Indent + 1), "Library Dependencies:\n",
+ [[rcl_util:indent(Indent + 2), erlang:atom_to_list(LibDep), ",\n"] || LibDep <- LibDeps]].
+
+%%%===================================================================
+%%% Internal Functions
+%%%===================================================================
+parse_version(Vsn)
+ when erlang:is_list(Vsn) ->
+ ec_semver:parse(Vsn);
+parse_version(Vsn = {_, {_, _}}) ->
+ Vsn.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 21:31:10 +0000