mirror of
https://github.com/correl/rebar.git
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69 lines
2.6 KiB
Erlang
69 lines
2.6 KiB
Erlang
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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
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%% ex: ts=4 sw=4 et
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%% -------------------------------------------------------------------
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%%
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%% rebar: Erlang Build Tools
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%%
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%% Copyright (c) 2015 Tomas Abrahamsson (tomas.abrahamsson@gmail.com)
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%%
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%% Permission is hereby granted, free of charge, to any person obtaining a copy
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%% of this software and associated documentation files (the "Software"), to deal
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%% in the Software without restriction, including without limitation the rights
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%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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%% copies of the Software, and to permit persons to whom the Software is
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%% furnished to do so, subject to the following conditions:
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%%
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%% The above copyright notice and this permission notice shall be included in
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%% all copies or substantial portions of the Software.
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%%
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%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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%% THE SOFTWARE.
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%% -------------------------------------------------------------------
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-module(protobuffs_compile).
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-export([scan_file/2]).
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%% Simulate protobuffs compiling some proto files,
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%% but generate only enough of what's needed for testing -- dummy stuff only.
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scan_file(Proto, _Opts) ->
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ProtoBase = filename:basename(Proto, ".proto"),
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ModBase = ProtoBase ++ "_pb",
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BeamDest = filename:join(get_beam_outdir(), ModBase ++ ".beam"),
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HrlDest = filename:join(get_hrl_outdir(), ModBase ++ ".hrl"),
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ok = file:write_file(BeamDest, beam_text(ModBase)),
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ok = file:write_file(HrlDest, hrl_text(ModBase)).
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beam_text(ModBase) ->
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Mod = list_to_atom(ModBase),
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Forms = [mk_attr(module, Mod)], % just a -module(...). line
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{ok, Mod, Bin} = compile:forms(Forms),
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Bin.
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mk_attr(AttrName, AttrValue) ->
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erl_syntax:revert(
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erl_syntax:attribute(erl_syntax:atom(AttrName),
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[erl_syntax:abstract(AttrValue)])).
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hrl_text(ModBase) ->
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io_lib:format(
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lines(["-ifndef(~s_hrl).",
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"-define(~s_hrl, true).",
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"",
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"%% some record definitions would normally go here...",
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""
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"-endif. %% ~s_hrl"]),
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[ModBase, ModBase, ModBase]).
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get_beam_outdir() ->
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".".
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get_hrl_outdir() ->
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".".
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lines(Lines) ->
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lists:flatten([[L, $\n] || L <- Lines]).
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