From b6b32fc64efb3b8a48f144fa850bfef923f66d45 Mon Sep 17 00:00:00 2001
From: Tristan Sloughter <t@crashfast.com>
Date: Mon, 6 Jul 2015 22:54:43 -0500
Subject: ensure necessary directories exist to compile mibs files

---
 src/rebar_erlc_compiler.erl |  7 +++++--
 src/rebar_prv_compile.erl   | 13 +++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/rebar_erlc_compiler.erl b/src/rebar_erlc_compiler.erl
index b9072a3..87cf352 100644
--- a/src/rebar_erlc_compiler.erl
+++ b/src/rebar_erlc_compiler.erl
@@ -404,10 +404,13 @@ target_base(OutDir, Source) ->
 -spec compile_mib(file:filename(), file:filename(),
                   rebar_state:t()) -> 'ok'.
 compile_mib(Source, Target, Config) ->
+    Dir = rebar_state:dir(Config),
     ok = filelib:ensure_dir(Target),
-    ok = filelib:ensure_dir(filename:join("include", "dummy.hrl")),
-    Opts = [{outdir, "priv/mibs"}, {i, ["priv/mibs"]}] ++
+    ok = filelib:ensure_dir(filename:join([Dir, "include", "dummy.hrl"])),
+    Opts = [{outdir, filename:join([Dir, "priv", "mibs"])}
+           ,{i, [filename:join([Dir, "priv", "mibs"])]}] ++
         rebar_state:get(Config, mib_opts, []),
+
     case snmpc:compile(Source, Opts) of
         {ok, _} ->
             Mib = filename:rootname(Target),
diff --git a/src/rebar_prv_compile.erl b/src/rebar_prv_compile.erl
index 6eb8a4f..25d5193 100644
--- a/src/rebar_prv_compile.erl
+++ b/src/rebar_prv_compile.erl
@@ -126,7 +126,20 @@ copy_app_dirs(State, OldAppDir, AppDir) ->
                 false ->
                     ok
             end,
+
             filelib:ensure_dir(filename:join(AppDir, "dummy")),
+
+            %% link or copy mibs if it exists
+            case filelib:is_dir(filename:join(OldAppDir, "mibs")) of
+                true ->
+                    %% If mibs exist it means we must ensure priv exists.
+                    %% mibs files are compiled to priv/mibs/
+                    filelib:ensure_dir(filename:join([OldAppDir, "priv", "dummy"])),
+                    symlink_or_copy(OldAppDir, AppDir, "mibs");
+                false ->
+                    ok
+            end,
+
             %% link to src_dirs to be adjacent to ebin is needed for R15 use of cover/xref
             SrcDirs = rebar_dir:all_src_dirs(State, ["src"], ["test"]),
             [symlink_or_copy(OldAppDir, AppDir, Dir) || Dir <- ["priv", "include"] ++ SrcDirs];
-- 
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