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