From 4c25718492ac848be17fb5c10ef0224d617689e3 Mon Sep 17 00:00:00 2001
From: Artem Teslenko <ates@ipv6.dp.ua>
Date: Mon, 12 Nov 2012 15:03:43 +0200
Subject: [PATCH] Add support to compile the Diameter dictionary files

---
 ebin/rebar.app             |  2 +
 src/rebar_dia_compiler.erl | 86 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 88 insertions(+)
 create mode 100644 src/rebar_dia_compiler.erl

diff --git a/ebin/rebar.app b/ebin/rebar.app
index f4444a3..0ea687a 100644
--- a/ebin/rebar.app
+++ b/ebin/rebar.app
@@ -9,6 +9,7 @@
               rebar_app_utils,
               rebar_appups,
               rebar_asn1_compiler,
+              rebar_dia_compiler,
               rebar_base_compiler,
               rebar_cleaner,
               rebar_config,
@@ -67,6 +68,7 @@
                                rebar_protobuffs_compiler,
                                rebar_neotoma_compiler,
                                rebar_asn1_compiler,
+                               rebar_dia_compiler,
                                rebar_erlc_compiler,
                                rebar_lfe_compiler,
                                rebar_erlydtl_compiler,
diff --git a/src/rebar_dia_compiler.erl b/src/rebar_dia_compiler.erl
new file mode 100644
index 0000000..51c075b
--- /dev/null
+++ b/src/rebar_dia_compiler.erl
@@ -0,0 +1,86 @@
+%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
+%% ex: ts=4 sw=4 et
+%% -------------------------------------------------------------------
+%%
+%% rebar: Erlang Build Tools
+%%
+%% Copyright (c) 2009, 2010 Dave Smith (dizzyd@dizzyd.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(rebar_dia_compiler).
+
+-export([compile/2, clean/2]).
+
+-include("rebar.hrl").
+
+%% ===================================================================
+%% Public API
+%% ===================================================================
+
+-spec compile(rebar_config:config(), file:filename()) -> 'ok'.
+compile(Config, _AppFile) ->
+    rebar_base_compiler:run(Config, filelib:wildcard("dia/*.dia"),
+                            "dia", ".dia", "src", ".erl",
+                            fun compile_dia/3).
+
+-spec clean(rebar_config:config(), file:filename()) -> 'ok'.
+clean(_Config, _AppFile) ->
+    GeneratedFiles = dia_generated_files("dia", "src", "include"),
+    ok = rebar_file_utils:delete_each(GeneratedFiles),
+    ok.
+
+-spec compile_dia(file:filename(), file:filename(),
+                   rebar_config:config()) -> ok.
+compile_dia(Source, Target, Config) ->
+    ok = filelib:ensure_dir(Target),
+    ok = filelib:ensure_dir(filename:join("include", "dummy.hrl")),
+    Opts = [{outdir, "src"}] ++ rebar_config:get(Config, dia_opts, []),
+    case diameter_dict_util:parse({path, Source}, []) of
+        {ok, Spec} ->
+            FileName = dia_filename(Source, Spec),
+            diameter_codegen:from_dict(FileName, Spec, Opts, erl),
+            diameter_codegen:from_dict(FileName, Spec, Opts, hrl),
+            HrlFile = filename:join("src", FileName ++ ".hrl"),
+            case filelib:is_regular(HrlFile) of
+                true ->
+                    ok = rebar_file_utils:mv(HrlFile, "include");
+                false ->
+                    ok
+            end;
+        {error, Reason} ->
+            ?ERROR("~s~n", [diameter_dict_util:format_error(Reason)])
+    end.
+
+dia_generated_files(DiaDir, SrcDir, IncDir) ->
+    F = fun(File, Acc) ->
+            {ok, Spec} = diameter_dict_util:parse({path, File}, []),
+            FileName = dia_filename(File, Spec),
+            [filename:join([IncDir, FileName ++ ".hrl"]) |
+             filelib:wildcard(filename:join([SrcDir, FileName ++ ".*"]))] ++ Acc
+    end,
+    lists:foldl(F, [], filelib:wildcard(filename:join([DiaDir, "*.dia"]))).
+
+dia_filename(File, Spec) ->
+    case proplists:get_value(name, Spec) of
+        undefined ->
+            filename:rootname(filename:basename(File));
+        Name ->
+            Name
+    end.