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-rw-r--r--src/rebar_erlc_compiler.erl7
-rw-r--r--test/rebar_compile_SUITE.erl50
2 files changed, 55 insertions, 2 deletions
diff --git a/src/rebar_erlc_compiler.erl b/src/rebar_erlc_compiler.erl
index 7875449..bdd1868 100644
--- a/src/rebar_erlc_compiler.erl
+++ b/src/rebar_erlc_compiler.erl
@@ -307,6 +307,7 @@ needed_files(G, ErlOpts, Dir, OutDir, SourceFiles) ->
,{i, Dir}] ++ ErlOpts,
digraph:vertex(G, Source) > {Source, filelib:last_modified(Target)}
orelse opts_changed(AllOpts, TargetBase)
+ orelse erl_compiler_opts_set()
end, SourceFiles).
maybe_rm_beam_and_edge(G, OutDir, Source) ->
@@ -339,6 +340,12 @@ compile_info(Target) ->
{error, Reason}
end.
+erl_compiler_opts_set() ->
+ case os:getenv("ERL_COMPILER_OPTIONS") of
+ false -> false;
+ _ -> true
+ end.
+
erlcinfo_file(Dir) ->
filename:join(rebar_dir:local_cache_dir(Dir), ?ERLCINFO_FILE).
diff --git a/test/rebar_compile_SUITE.erl b/test/rebar_compile_SUITE.erl
index 76a3de5..2f01dd4 100644
--- a/test/rebar_compile_SUITE.erl
+++ b/test/rebar_compile_SUITE.erl
@@ -40,7 +40,8 @@
profile_override_deps/1,
deps_build_in_prod/1,
include_file_relative_to_working_directory/1,
- include_file_in_src/1]).
+ include_file_in_src/1,
+ always_recompile_when_erl_compiler_options_set/1]).
-include_lib("common_test/include/ct.hrl").
-include_lib("eunit/include/eunit.hrl").
@@ -62,7 +63,11 @@ all() ->
parse_transform_test, erl_first_files_test, mib_test,
umbrella_mib_first_test, only_default_transitive_deps,
clean_all, override_deps, profile_override_deps, deps_build_in_prod,
- include_file_relative_to_working_directory, include_file_in_src].
+ include_file_relative_to_working_directory, include_file_in_src] ++
+ case erlang:function_exported(os, unsetenv, 1) of
+ true -> [always_recompile_when_erl_compiler_options_set];
+ false -> []
+ end.
groups() ->
[{basic_app, [], [build_basic_app, paths_basic_app, clean_basic_app]},
@@ -1265,3 +1270,44 @@ include_file_in_src(Config) ->
rebar_test_utils:run_and_check(Config, RebarConfig,
["compile"],
{ok, [{app, Name}]}).
+
+always_recompile_when_erl_compiler_options_set(Config) ->
+ %% save existing env to restore after test
+ ExistingEnv = os:getenv("ERL_COMPILER_OPTIONS"),
+
+ AppDir = ?config(apps, Config),
+
+ Name = rebar_test_utils:create_random_name("erl_compiler_options_"),
+ Vsn = rebar_test_utils:create_random_vsn(),
+ rebar_test_utils:create_app(AppDir, Name, Vsn, [kernel, stdlib]),
+
+ true = os:unsetenv("ERL_COMPILER_OPTIONS"),
+
+ rebar_test_utils:run_and_check(Config, [], ["compile"], {ok, [{app, Name}]}),
+
+ EbinDir = filename:join([AppDir, "_build", "default", "lib", Name, "ebin"]),
+
+ {ok, Files} = rebar_utils:list_dir(EbinDir),
+ ModTime = [filelib:last_modified(filename:join([EbinDir, F]))
+ || F <- Files, filename:extension(F) == ".beam"],
+
+ timer:sleep(1000),
+
+ true = os:putenv("ERL_COMPILER_OPTIONS", "[{d, some_macro}]"),
+
+ rebar_test_utils:run_and_check(Config, [], ["compile"], {ok, [{app, Name}]}),
+
+ {ok, NewFiles} = rebar_utils:list_dir(EbinDir),
+ NewModTime = [filelib:last_modified(filename:join([EbinDir, F]))
+ || F <- NewFiles, filename:extension(F) == ".beam"],
+
+ ?assert(ModTime =/= NewModTime),
+
+ %% restore existing env
+ case ExistingEnv of
+ false -> ok;
+ _ -> os:putenv("ERL_COMPILER_OPTIONS", ExistingEnv)
+ end.
+
+
+