| %% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*- |
| %% ex: ts=4 sw=4 et |
| %% ------------------------------------------------------------------- |
| %% |
| %% rebar: Erlang Build Tools |
| %% |
| %% Copyright (c) 2015 Tomas Abrahamsson (tomas.abrahamsson@gmail.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(protobuffs_compile). |
| -export([scan_file/2]). |
| |
| %% Simulate protobuffs compiling some proto files, |
| %% but generate only enough of what's needed for testing -- dummy stuff only. |
| scan_file(Proto, _Opts) -> |
| ProtoBase = filename:basename(Proto, ".proto"), |
| ModBase = ProtoBase ++ "_pb", |
| BeamDest = filename:join(get_beam_outdir(), ModBase ++ ".beam"), |
| HrlDest = filename:join(get_hrl_outdir(), ModBase ++ ".hrl"), |
| ok = file:write_file(BeamDest, beam_text(ModBase)), |
| ok = file:write_file(HrlDest, hrl_text(ModBase)). |
| |
| beam_text(ModBase) -> |
| Mod = list_to_atom(ModBase), |
| Forms = [mk_attr(module, Mod)], % just a -module(...). line |
| {ok, Mod, Bin} = compile:forms(Forms), |
| Bin. |
| |
| mk_attr(AttrName, AttrValue) -> |
| erl_syntax:revert( |
| erl_syntax:attribute(erl_syntax:atom(AttrName), |
| [erl_syntax:abstract(AttrValue)])). |
| |
| hrl_text(ModBase) -> |
| io_lib:format( |
| lines(["-ifndef(~s_hrl).", |
| "-define(~s_hrl, true).", |
| "", |
| "%% some record definitions would normally go here...", |
| "" |
| "-endif. %% ~s_hrl"]), |
| [ModBase, ModBase, ModBase]). |
| |
| get_beam_outdir() -> |
| ".". |
| |
| get_hrl_outdir() -> |
| ".". |
| |
| lines(Lines) -> |
| lists:flatten([[L, $\n] || L <- Lines]). |