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%% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 ft=erlang et
-module(erlc_rt).
-export([files/0,
run/1]).
-include_lib("eunit/include/eunit.hrl").
-define(MODULES,
[first_xrl,
first_yrl,
first_erl,
foo,
foo_app,
foo_sup,
foo_test_worker,
foo_worker,
'SIMPLE-ASN']).
-define(BEAM_FILES,
["first_xrl.beam",
"first_yrl.beam",
"first_erl.beam",
"foo.beam",
"foo_app.beam",
"foo_sup.beam",
"foo_test_worker.beam",
"foo_worker.beam",
"SIMPLE-ASN.beam"]).
files() ->
[
{copy, "../../rebar", "rebar"},
{copy, "rebar.config", "rebar.config"},
{copy, "rebar-no_debug_info.config", "rebar-no_debug_info.config"},
{copy, "include", "include"},
{copy, "extra-include", "extra-include"},
{copy, "src", "src"},
{copy, "extra-src", "extra-src"},
{copy, "mibs", "mibs"},
{copy, "asn1", "asn1"},
{create, "ebin/foo.app", app(foo, ?MODULES)},
%% deps
{create, "deps/foobar/ebin/foobar.app", app(foobar, [foobar])},
{copy, "foobar.erl", "deps/foobar/src/foobar.erl"}
].
run(_Dir) ->
?assertMatch({ok, _}, retest_sh:run("./rebar compile", [])),
ok = check_beams(true),
ok = check_debug_info(true),
MibResult = filename:join(["priv", "mibs", "SIMPLE-MIB.bin"]),
?assertMatch(true, filelib:is_regular(MibResult)),
?assertMatch({ok, _}, retest_sh:run("./rebar clean", [])),
ok = check_beams(false),
?assertMatch(false, filelib:is_regular(MibResult)),
?assertMatch(
{ok, _},
retest_sh:run("./rebar -C rebar-no_debug_info.config compile", [])),
ok = check_beams(true),
ok = check_debug_info(false),
?assertMatch(true, filelib:is_regular(MibResult)),
%% Regression test for https://github.com/rebar/rebar/issues/249
%%
%% Root cause: We didn't have per-project .rebar/erlcinfo but just one in
%% <base_dir>/.rebar/erlcinfo.
%%
%% Solution: Ensure every project has its own .rebar/erlcinfo
%%
%% For the bug to happen, the following conditions must be met:
%%
%% 1. <base_dir>/rebar.config has erl_first_files
%% 2. one of the 'first' files depends on another file (in this
%% case via -include_lib())
%% 3. a sub project's rebar.config, if any, has no erl_first_files entry
%%
%% Now because erl_first_files is retrieved via rebar_config:get_list/3,
%% base_dir/rebar.config's erl_first_files is inherited, and because we had
%% a shared <base_dir>/.rebar/erlcinfo instead of one per project, the
%% cached entry was reused. Next, while compiling the sub project
%% rebar_erlc_compiler:needs_compile/3 gets a last modification time of
%% zero for the 'first' file which does not exist inside the sub project.
%% This, and the fact that it has at least one dependency, makes
%% needs_compile/3 return 'true'. The root cause is that we didn't have per
%% project .rebar/erlcinfo. For <base_dir>/.rebar/erlcinfo to be populated,
%% base_dir has to be compiled at least once. Therefore, after the first
%% compile any compile processing the sub project will fail because
%% needs_compile/3 will always return true for the non-existent 'first'
%% file.
?assertMatch({ok, _}, retest_sh:run("./rebar clean", [])),
?assertMatch({ok, _}, retest_sh:run("./rebar compile", [])),
ok = check_beams(true),
?assertMatch({ok, _}, retest_sh:run("./rebar compile", [])),
ok = check_beams(true),
ok.
check_beams(Exist) ->
check_files(Exist, fun filelib:is_regular/1).
check_debug_info(HasDebugInfo) ->
check_files(HasDebugInfo, fun has_debug_info/1).
check_files(Expected, Check) ->
lists:foreach(
fun(F) ->
File = filename:join("ebin", F),
?assertEqual(Expected, Check(File))
end,
?BEAM_FILES).
%% NOTE: Copied from dialyzer_utils:get_abstract_code_from_beam/1 and
%% modified for local use. We could have called the function directly,
%% but dialyzer_utils is not an official API to rely on.
has_debug_info(File) ->
case beam_lib:chunks(File, [abstract_code]) of
{ok, {_Mod, List}} ->
case lists:keyfind(abstract_code, 1, List) of
{abstract_code, {raw_abstract_v1, _Abstr}} ->
true;
_ ->
false
end;
_ ->
false
end.
%%
%% Generate the contents of a simple .app file
%%
app(Name, Modules) ->
App = {application, Name,
[{description, atom_to_list(Name)},
{vsn, "1"},
{modules, Modules},
{registered, []},
{applications, [kernel, stdlib]}]},
io_lib:format("~p.\n", [App]).
|
