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Create ERLANG_LIB_*_erl_interface environment variables only if erl_interface exists #1809

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Jun 8, 2018
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54 changes: 34 additions & 20 deletions src/rebar_env.erl
Original file line number Diff line number Diff line change
Expand Up @@ -37,26 +37,40 @@ create_env(State) ->
-spec create_env(rebar_state:t(), rebar_dict()) -> proplists:proplist().
create_env(State, Opts) ->
BaseDir = rebar_dir:base_dir(State),
[
{"REBAR_DEPS_DIR", filename:absname(rebar_dir:deps_dir(State))},
{"REBAR_BUILD_DIR", filename:absname(rebar_dir:base_dir(State))},
{"REBAR_ROOT_DIR", filename:absname(rebar_dir:root_dir(State))},
{"REBAR_CHECKOUTS_DIR", filename:absname(rebar_dir:checkouts_dir(State))},
{"REBAR_PLUGINS_DIR", filename:absname(rebar_dir:plugins_dir(State))},
{"REBAR_GLOBAL_CONFIG_DIR", filename:absname(rebar_dir:global_config_dir(State))},
{"REBAR_GLOBAL_CACHE_DIR", filename:absname(rebar_dir:global_cache_dir(Opts))},
{"REBAR_TEMPLATE_DIR", filename:absname(rebar_dir:template_dir(State))},
{"REBAR_APP_DIRS", join_dirs(BaseDir, rebar_dir:lib_dirs(State))},
{"REBAR_SRC_DIRS", join_dirs(BaseDir, rebar_dir:all_src_dirs(Opts))},
{"ERLANG_ERTS_VER", erlang:system_info(version)},
{"ERLANG_ROOT_DIR", code:root_dir()},
{"ERLANG_LIB_DIR_erl_interface", code:lib_dir(erl_interface)},
{"ERLANG_LIB_VER_erl_interface", re_version(code:lib_dir(erl_interface))},
{"ERL", filename:join([code:root_dir(), "bin", "erl"])},
{"ERLC", filename:join([code:root_dir(), "bin", "erlc"])},
{"ERLANG_ARCH" , rebar_api:wordsize()},
{"ERLANG_TARGET", rebar_api:get_arch()}
].
EnvVars = [
{"REBAR_DEPS_DIR", filename:absname(rebar_dir:deps_dir(State))},
{"REBAR_BUILD_DIR", filename:absname(rebar_dir:base_dir(State))},
{"REBAR_ROOT_DIR", filename:absname(rebar_dir:root_dir(State))},
{"REBAR_CHECKOUTS_DIR", filename:absname(rebar_dir:checkouts_dir(State))},
{"REBAR_PLUGINS_DIR", filename:absname(rebar_dir:plugins_dir(State))},
{"REBAR_GLOBAL_CONFIG_DIR", filename:absname(rebar_dir:global_config_dir(State))},
{"REBAR_GLOBAL_CACHE_DIR", filename:absname(rebar_dir:global_cache_dir(Opts))},
{"REBAR_TEMPLATE_DIR", filename:absname(rebar_dir:template_dir(State))},
{"REBAR_APP_DIRS", join_dirs(BaseDir, rebar_dir:lib_dirs(State))},
{"REBAR_SRC_DIRS", join_dirs(BaseDir, rebar_dir:all_src_dirs(Opts))},
{"ERLANG_ERTS_VER", erlang:system_info(version)},
{"ERLANG_ROOT_DIR", code:root_dir()},
{"ERL", filename:join([code:root_dir(), "bin", "erl"])},
{"ERLC", filename:join([code:root_dir(), "bin", "erlc"])},
{"ERLANG_ARCH" , rebar_api:wordsize()},
{"ERLANG_TARGET", rebar_api:get_arch()}
],
EInterfaceVars = create_erl_interface_env(),
lists:append([EnvVars, EInterfaceVars]).

-spec create_erl_interface_env() -> list().
create_erl_interface_env() ->
case code:lib_dir(erl_interface) of
{error, bad_name} ->
?WARN("erl_interface is missing. ERLANG_LIB_DIR_erl_interface and "
"ERLANG_LIB_VER_erl_interface will not be added to the environment.", []),
[];
Dir ->
[
{"ERLANG_LIB_DIR_erl_interface", Dir},
{"ERLANG_LIB_VER_erl_interface", re_version(Dir)}
]
end.

%% ====================================================================
%% Internal functions
Expand Down