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-module(rebar_compiler_mib).
-behaviour(rebar_compiler).
-export([context/1,
needed_files/3,
dependencies/3,
compile/4,
clean/2]).
-include("rebar.hrl").
-include_lib("stdlib/include/erl_compile.hrl").
context(AppInfo) ->
Dir = rebar_app_info:dir(AppInfo),
Mappings = [{".bin", filename:join([Dir, "priv", "mibs"])},
{".hrl", filename:join(Dir, "include")}],
#{src_dirs => ["mibs"],
include_dirs => [],
src_ext => ".mib",
out_mappings => Mappings}.
needed_files(_, FoundFiles, AppInfo) ->
FirstFiles = [],
%% Remove first files from found files
RestFiles = [Source || Source <- FoundFiles, not lists:member(Source, FirstFiles)],
Opts = rebar_opts:get(rebar_app_info:opts(AppInfo), mib_opts, []),
{{FirstFiles, Opts}, {RestFiles, Opts}}.
dependencies(_, _, _) ->
[].
compile(Source, OutDirs, _, Opts) ->
{_, BinOut} = lists:keyfind(".bin", 1, OutDirs),
{_, HrlOut} = lists:keyfind(".hrl", 1, OutDirs),
ok = rebar_file_utils:ensure_dir(BinOut),
ok = rebar_file_utils:ensure_dir(HrlOut),
Mib = filename:join(BinOut, filename:basename(Source, ".mib")),
HrlFilename = Mib ++ ".hrl",
AllOpts = [{outdir, BinOut}, {i, [BinOut]}] ++ Opts,
case snmpc:compile(Source, AllOpts) of
{ok, _} ->
MibToHrlOpts =
case proplists:get_value(verbosity, AllOpts, undefined) of
undefined ->
#options{specific = [],
cwd = rebar_dir:get_cwd()};
Verbosity ->
#options{specific = [{verbosity, Verbosity}],
cwd = rebar_dir:get_cwd()}
end,
ok = snmpc:mib_to_hrl(Mib, Mib, MibToHrlOpts),
rebar_file_utils:mv(HrlFilename, HrlOut),
ok;
{error, compilation_failed} ->
?FAIL
end.
clean(MibFiles, AppInfo) ->
AppDir = rebar_app_info:dir(AppInfo),
MIBs = [filename:rootname(filename:basename(MIB)) || MIB <- MibFiles],
rebar_file_utils:delete_each(
[filename:join([AppDir, "include", MIB++".hrl"]) || MIB <- MIBs]),
ok = rebar_file_utils:rm_rf(filename:join([AppDir, "priv/mibs/*.bin"])).
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