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Add support for target-specific port options

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{port_specs, [{".*", "priv/foo.so", ["c_src/foo.c"], [{env, []}]}]}.
This commit is contained in:
Tuncer Ayaz 2012-02-07 20:15:58 +01:00
parent 2ae73cc2d3
commit 7c418ed2b4
4 changed files with 268 additions and 217 deletions
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6
rebar.config.sample
View file

@ -37,14 +37,16 @@
%% Port compilation environment variables. See rebar_port_compiler.erl for
%% more info. Default is `[]'
{port_env, []}.
{port_env, [{"CFLAGS", "$CFLAGS -Ifoo"},
{"freebsd", "LDFLAGS", "$LDFLAGS -lfoo"}]}.
%% port_specs
%% List of filenames or wildcards to be compiled. May also contain a tuple
%% consisting of a regular expression to be applied against the system
%% architecture as a filter.
{port_specs, [{"priv/so_name.so", ["c_src/*.c"]},
{"linux", "priv/hello_linux", ["c_src/hello_linux.c"]]}.
{"linux", "priv/hello_linux", ["c_src/hello_linux.c"]},
{"linux", "priv/hello_linux", ["c_src/*.c"], [{env, []}]}}.
%% == LFE Compiler ==

25
src/rebar_config.erl
View file

@ -31,12 +31,17 @@
get_all/2,
set/3,
set_global/2, get_global/2,
is_verbose/0, get_jobs/0]).
is_verbose/0, get_jobs/0,
set_env/3, get_env/2]).
-include("rebar.hrl").
-record(config, { dir :: file:filename(),
opts :: list() }).
opts = [] :: list(),
envs = [] :: list({module(), env()}) }).
-type env() :: [env_var()].
-type env_var() :: {string(), string()}.
%% Types that can be used from other modules -- alphabetically ordered.
-export_type([config/0]).
@ -53,8 +58,7 @@ base_config(#config{opts=Opts0}) ->
new(Opts0, ConfName).
new() ->
#config { dir = rebar_utils:get_cwd(),
opts = [] }.
#config{dir = rebar_utils:get_cwd()}.
new(ConfigFile) when is_list(ConfigFile) ->
case consult_file(ConfigFile) of
@ -88,7 +92,7 @@ new(Opts0, ConfName) ->
?ABORT("Failed to load ~s: ~p\n", [ConfigFile, Other])
end,
#config { dir = Dir, opts = Opts }.
#config{dir = Dir, opts = Opts}.
get(Config, Key, Default) ->
proplists:get_value(Key, Config#config.opts, Default).
@ -143,6 +147,17 @@ consult_file(File) ->
end
end.
set_env(Config, Mod, Env) ->
OldEnvs = Config#config.envs,
NewEnvs = case lists:keymember(Mod, 1, OldEnvs) of
true -> lists:keyreplace(Mod, 1, OldEnvs, {Mod, Env});
false -> [{Mod,Env}|OldEnvs]
end,
Config#config{envs=NewEnvs}.
get_env(Config, Mod) ->
proplists:get_value(Mod, Config#config.envs, []).
%% ===================================================================
%% Internal functions
%% ===================================================================

78
src/rebar_core.erl
View file

@ -168,7 +168,7 @@ maybe_process_dir0(AppFile, ModuleSet, Config, CurrentCodePath,
CurrentCodePath, ModuleSet)
end.
process_dir0(Dir, Command, DirSet, Config, CurrentCodePath,
process_dir0(Dir, Command, DirSet, Config0, CurrentCodePath,
{DirModules, ModuleSetFile}) ->
%% Get the list of modules for "any dir". This is a catch-all list
%% of modules that are processed in addition to modules associated
@ -180,21 +180,21 @@ process_dir0(Dir, Command, DirSet, Config, CurrentCodePath,
%% Invoke 'preprocess' on the modules -- this yields a list of other
%% directories that should be processed _before_ the current one.
Predirs = acc_modules(Modules, preprocess, Config, ModuleSetFile),
Predirs = acc_modules(Modules, preprocess, Config0, ModuleSetFile),
SubdirAssoc = remember_cwd_subdir(Dir, Predirs),
%% Get the list of plug-in modules from rebar.config. These
%% modules may participate in preprocess and postprocess.
{ok, PluginModules} = plugin_modules(Config, SubdirAssoc),
{ok, PluginModules} = plugin_modules(Config0, SubdirAssoc),
PluginPredirs = acc_modules(PluginModules, preprocess,
Config, ModuleSetFile),
Config0, ModuleSetFile),
AllPredirs = Predirs ++ PluginPredirs,
?DEBUG("Predirs: ~p\n", [AllPredirs]),
DirSet2 = process_each(AllPredirs, Command, Config,
DirSet2 = process_each(AllPredirs, Command, Config0,
ModuleSetFile, DirSet),
%% Make sure the CWD is reset properly; processing the dirs may have
@ -202,25 +202,31 @@ process_dir0(Dir, Command, DirSet, Config, CurrentCodePath,
ok = file:set_cwd(Dir),
%% Check that this directory is not on the skip list
case is_skip_dir(Dir) of
true ->
%% Do not execute the command on the directory, as some
%% module has requested a skip on it.
?INFO("Skipping ~s in ~s\n", [Command, Dir]);
Config = case is_skip_dir(Dir) of
true ->
%% Do not execute the command on the directory, as some
%% module has requested a skip on it.
?INFO("Skipping ~s in ~s\n", [Command, Dir]),
Config0;
false ->
%% Execute any before_command plugins on this directory
execute_pre(Command, PluginModules,
Config, ModuleSetFile),
false ->
%% Check for and get command specific environments
{Config1, Env} = setup_envs(Config0, Modules),
%% Execute the current command on this directory
execute(Command, Modules ++ PluginModules,
Config, ModuleSetFile),
%% Execute any before_command plugins on this directory
execute_pre(Command, PluginModules,
Config1, ModuleSetFile, Env),
%% Execute any after_command plugins on this directory
execute_post(Command, PluginModules,
Config, ModuleSetFile)
end,
%% Execute the current command on this directory
execute(Command, Modules ++ PluginModules,
Config1, ModuleSetFile, Env),
%% Execute any after_command plugins on this directory
execute_post(Command, PluginModules,
Config1, ModuleSetFile, Env),
Config1
end,
%% Mark the current directory as processed
DirSet3 = sets:add_element(Dir, DirSet2),
@ -311,22 +317,22 @@ is_dir_type(rel_dir, Dir) ->
is_dir_type(_, _) ->
false.
execute_pre(Command, Modules, Config, ModuleFile) ->
execute_pre(Command, Modules, Config, ModuleFile, Env) ->
execute_plugin_hook("pre_", Command, Modules,
Config, ModuleFile).
Config, ModuleFile, Env).
execute_post(Command, Modules, Config, ModuleFile) ->
execute_post(Command, Modules, Config, ModuleFile, Env) ->
execute_plugin_hook("post_", Command, Modules,
Config, ModuleFile).
Config, ModuleFile, Env).
execute_plugin_hook(Hook, Command, Modules, Config, ModuleFile) ->
execute_plugin_hook(Hook, Command, Modules, Config, ModuleFile, Env) ->
HookFunction = list_to_atom(Hook ++ atom_to_list(Command)),
execute(HookFunction, Modules, Config, ModuleFile).
execute(HookFunction, Modules, Config, ModuleFile, Env).
%%
%% Execute a command across all applicable modules
%%
execute(Command, Modules, Config, ModuleFile) ->
execute(Command, Modules, Config, ModuleFile, Env) ->
case select_modules(Modules, Command, []) of
[] ->
Cmd = atom_to_list(Command),
@ -346,9 +352,6 @@ execute(Command, Modules, Config, ModuleFile) ->
increment_operations(),
%% Check for and get command specific environments
Env = setup_envs(Config, Modules),
%% Run the available modules
apply_hooks(pre_hooks, Config, Command, Env),
case catch(run_modules(TargetModules, Command,
@ -443,9 +446,16 @@ apply_hook({Env, {Command, Hook}}) ->
rebar_utils:sh(Hook, [{env, Env}, {abort_on_error, Msg}]).
setup_envs(Config, Modules) ->
lists:flatten([M:setup_env(Config) ||
M <- Modules,
erlang:function_exported(M, setup_env, 1)]).
lists:foldl(fun(M, {C,E}=T) ->
case erlang:function_exported(M, setup_env, 1) of
true ->
Env = M:setup_env(C),
C1 = rebar_config:set_env(C, M, Env),
{C1, E++Env};
false ->
T
end
end, {Config, []}, Modules).
acc_modules(Modules, Command, Config, File) ->
acc_modules(select_modules(Modules, Command, []),

376
src/rebar_port_compiler.erl
View file

@ -39,8 +39,9 @@
%% Supported configuration variables:
%%
%% * port_specs - Erlang list of tuples of the forms
%% {arch_regex(), "priv/foo.so", ["c_src/foo.c"]}
%% {"priv/foo", ["c_src/foo.c"]}
%% {ArchRegex, TargetFile, Sources, Options}
%% {ArchRegex, TargetFile, Sources}
%% {TargetFile, Sources}
%%
%% * port_env - Erlang list of key/value pairs which will control
%% the environment when running the compiler and linker.
@ -85,43 +86,55 @@
%% "$CFLAGS -X86Options"}]}
%%
%% TODO: reconsider keeping both sources and objects once
%% support for deprecated options has been remove.
%% remove [] as valid value for sources, objects, and opts
%% when removing deprecated options.
-record(spec, {type::'drv' | 'exe',
target::file:filename(),
sources = [] :: [file:filename(), ...] | [],
objects = [] :: [file:filename(), ...] | [],
opts = [] ::list() | []}).
compile(Config, AppFile) ->
rebar_utils:deprecated(port_sources, port_specs, Config, "soon"),
rebar_utils:deprecated(so_name, port_specs, Config, "soon"),
rebar_utils:deprecated(so_specs, port_specs, Config, "soon"),
SourceFiles = get_sources(Config),
%% TODO: remove SpecType and OldSources make get_specs/2
%% return list(#spec{}) when removing deprecated options
{SpecType, {OldSources, Specs}} = get_specs(Config, AppFile),
case SourceFiles of
[] ->
ok;
_ ->
Env = setup_env(Config),
case {SpecType, OldSources, Specs} of
{old, [], _} ->
ok; % old specs empty
{new, [], []} ->
ok; % port_specs empty
_ -> % have old/new specs
SharedEnv = rebar_config:get_env(Config, ?MODULE),
%% Compile each of the sources
{NewBins, ExistingBins} = compile_each(SourceFiles, Config, Env,
[], []),
NewBins = compile_sources(OldSources, Specs, SharedEnv),
%% Construct the target filename and make sure that the
%% target directory exists
Specs = port_specs(Config, AppFile, NewBins ++ ExistingBins),
%% Make sure that the target directories exist
?INFO("Using specs ~p\n", [Specs]),
lists:foreach(fun({_, Target,_}) ->
ok = filelib:ensure_dir(Target);
({Target, _}) ->
lists:foreach(fun(#spec{target=Target}) ->
ok = filelib:ensure_dir(Target)
end, Specs),
%% Only relink if necessary, given the Target
%% and list of new binaries
lists:foreach(
fun({Target, Bins}) ->
fun(#spec{target=Target, objects=Bins, opts=Opts}) ->
AllBins = [sets:from_list(Bins),
sets:from_list(NewBins)],
Intersection = sets:intersection(AllBins),
case needs_link(Target, sets:to_list(Intersection)) of
true ->
LinkTemplate = select_link_template(Target),
Env = proplists:get_value(env, Opts, SharedEnv),
Cmd = expand_command(LinkTemplate, Env,
string:join(Bins, " "),
Target),
@ -134,113 +147,83 @@ compile(Config, AppFile) ->
end.
clean(Config, AppFile) ->
%% Build a list of sources so as to derive all the bins we generated
Sources = get_sources(Config),
rebar_file_utils:delete_each([source_to_bin(S) || S <- Sources]),
%% TODO: remove SpecType and OldSources make get_specs/2
%% return list(#spec{}) when removing deprecated options
{SpecType, {OldSources, Specs}} = get_specs(Config, AppFile),
%% Delete the target file
ExtractTarget = fun({_, Target, _}) ->
Target;
({Target, _}) ->
Target
end,
rebar_file_utils:delete_each([ExtractTarget(S)
|| S <- port_specs(Config, AppFile,
expand_objects(Sources))]).
case {SpecType, OldSources, Specs} of
{old, [], _} ->
ok; % old specs empty
{new, [], []} ->
ok; % port_specs empty
_ -> % have old/new specs
lists:foreach(fun(#spec{target=Target, objects=Objects}) ->
rebar_file_utils:delete_each([Target]),
rebar_file_utils:delete_each(Objects)
end, Specs)
end.
setup_env(Config) ->
%% Extract environment values from the config (if specified) and
%% merge with the default for this operating system. This enables
%% max flexibility for users.
DefaultEnv = filter_env(default_env(), []),
PortEnv = port_env(Config),
OverrideEnv = global_defines() ++ filter_env(PortEnv, []),
RawEnv = apply_defaults(os_env(), DefaultEnv) ++ OverrideEnv,
expand_vars_loop(merge_each_var(RawEnv, [])).
setup_env(Config, []).
%% ===================================================================
%% Internal functions
%% ===================================================================
setup_env(Config, ExtraEnv) ->
%% Extract environment values from the config (if specified) and
%% merge with the default for this operating system. This enables
%% max flexibility for users.
DefaultEnv = filter_env(default_env(), []),
PortEnv = filter_env(port_env(Config), []),
OverrideEnv = global_defines() ++ PortEnv ++ filter_env(ExtraEnv, []),
RawEnv = apply_defaults(os_env(), DefaultEnv) ++ OverrideEnv,
expand_vars_loop(merge_each_var(RawEnv, [])).
global_defines() ->
Defines = rebar_config:get_global(defines, []),
Flags = string:join(["-D" ++ D || D <- Defines], " "),
[{"ERL_CFLAGS", "$ERL_CFLAGS " ++ Flags}].
get_sources(Config) ->
case rebar_config:get_list(Config, port_specs, []) of
[] ->
%% TODO: DEPRECATED: remove
expand_sources(rebar_config:get_list(Config, port_sources,
["c_src/*.c"]), []);
PortSpecs ->
expand_port_specs(PortSpecs)
end.
replace_extension(File, NewExt) ->
OldExt = filename:extension(File),
replace_extension(File, OldExt, NewExt).
expand_port_specs(Specs) ->
lists:flatmap(fun({_, Target, FileSpecs}) ->
expand_file_specs(Target, FileSpecs);
({Target, FileSpecs}) ->
expand_file_specs(Target, FileSpecs)
end, filter_port_specs(Specs)).
replace_extension(File, OldExt, NewExt) ->
filename:rootname(File, OldExt) ++ NewExt.
expand_file_specs(Target, FileSpecs) ->
Sources = lists:flatmap(fun filelib:wildcard/1, FileSpecs),
[{Target, Src} || Src <- Sources].
%%
%% == compile and link ==
%%
filter_port_specs(Specs) ->
lists:filter(fun({ArchRegex, _, _}) ->
rebar_utils:is_arch(ArchRegex);
({_, _}) ->
true
end, Specs).
compile_sources([], Specs, SharedEnv) -> % port_spec
lists:foldl(
fun(#spec{sources=Sources, type=Type, opts=Opts}, NewBins) ->
Env = proplists:get_value(env, Opts, SharedEnv),
compile_each(Sources, Type, Env, NewBins)
end, [], Specs);
compile_sources(OldSources, _Specs, SharedEnv) -> % deprecated
compile_each(OldSources, drv, SharedEnv, []).
%% TODO: DEPRECATED: remove
expand_sources([], Acc) ->
Acc;
expand_sources([{ArchRegex, Spec} | Rest], Acc) ->
case rebar_utils:is_arch(ArchRegex) of
true ->
Acc2 = expand_sources(Spec, Acc),
expand_sources(Rest, Acc2);
false ->
expand_sources(Rest, Acc)
end;
expand_sources([Spec | Rest], Acc) ->
Acc2 = filelib:wildcard(Spec) ++ Acc,
expand_sources(Rest, Acc2).
expand_objects(Sources) ->
[expand_object(".o", Src) || Src <- Sources].
expand_object(Ext, {_Target, Source}) ->
expand_object(Ext, Source);
expand_object(Ext, Source) ->
filename:join(filename:dirname(Source), filename:basename(Source) ++ Ext).
compile_each([], _Config, _Env, NewBins, ExistingBins) ->
{lists:reverse(NewBins), lists:reverse(ExistingBins)};
compile_each([RawSource | Rest], Config, Env, NewBins, ExistingBins) ->
%% TODO: DEPRECATED: remove
{Type, Source} = source_type(RawSource),
compile_each([], _Type, _Env, NewBins) ->
lists:reverse(NewBins);
compile_each([Source | Rest], Type, Env, NewBins) ->
Ext = filename:extension(Source),
Bin = filename:rootname(Source, Ext) ++ ".o",
Bin = replace_extension(Source, Ext, ".o"),
case needs_compile(Source, Bin) of
true ->
?CONSOLE("Compiling ~s\n", [Source]),
Template = select_compile_template(Type, compiler(Ext)),
rebar_utils:sh(expand_command(Template, Env, Source, Bin),
[{env, Env}]),
compile_each(Rest, Config, Env, [Bin | NewBins], ExistingBins);
compile_each(Rest, Type, Env, [Bin | NewBins]);
false ->
?INFO("Skipping ~s\n", [Source]),
compile_each(Rest, Config, Env, NewBins, [Bin | ExistingBins])
compile_each(Rest, Type, Env, NewBins)
end.
source_type({Target, Source}) -> {target_type(Target), Source};
source_type(Source) -> {drv, Source}.
needs_compile(Source, Bin) ->
%% TODO: Generate depends using gcc -MM so we can also
%% check for include changes
@ -259,6 +242,127 @@ needs_link(SoName, NewBins) ->
MaxLastMod >= Other
end.
%%
%% == port_specs ==
%%
get_specs(Config, AppFile) ->
case rebar_config:get(Config, port_specs, undefined) of
undefined ->
%% TODO: DEPRECATED: remove support for non-port_specs syntax
{old, old_get_specs(Config, AppFile)};
PortSpecs ->
{new, get_port_specs(Config, PortSpecs)}
end.
get_port_specs(Config, PortSpecs) ->
Filtered = filter_port_specs(PortSpecs),
OsType = os:type(),
{[], [get_port_spec(Config, OsType, Spec) || Spec <- Filtered]}.
filter_port_specs(Specs) ->
[S || S <- Specs, filter_port_spec(S)].
filter_port_spec({ArchRegex, _, _, _}) ->
rebar_utils:is_arch(ArchRegex);
filter_port_spec({ArchRegex, _, _}) ->
rebar_utils:is_arch(ArchRegex);
filter_port_spec({_, _}) ->
true.
get_port_spec(Config, OsType, {Target, Sources}) ->
get_port_spec(Config, OsType, {undefined, Target, Sources, []});
get_port_spec(Config, OsType, {Arch, Target, Sources}) ->
get_port_spec(Config, OsType, {Arch, Target, Sources, []});
get_port_spec(Config, OsType, {_Arch, Target, Sources, Opts}) ->
SourceFiles = port_sources(Sources),
ObjectFiles = port_objects(SourceFiles),
#spec{type=target_type(Target),
target=maybe_switch_extension(OsType, Target),
sources=SourceFiles,
objects=ObjectFiles,
opts=port_opts(Config, Opts)}.
port_sources(Sources) ->
lists:flatmap(fun filelib:wildcard/1, Sources).
port_objects(SourceFiles) ->
[replace_extension(O, ".o") || O <- SourceFiles].
port_opts(Config, Opts) ->
[port_opt(Config, O) || O <- Opts].
port_opt(Config, {env, Env}) ->
{env, setup_env(Config, Env)};
port_opt(_Config, Opt) ->
Opt.
maybe_switch_extension({win32, nt}, Target) ->
switch_to_dll_or_exe(Target);
maybe_switch_extension(_OsType, Target) ->
Target.
switch_to_dll_or_exe(Target) ->
case filename:extension(Target) of
".so" -> filename:rootname(Target, ".so") ++ ".dll";
[] -> Target ++ ".exe";
Other -> Other
end.
%% TODO: DEPRECATED: remove support for non-port_specs syntax [old_*()]
old_get_specs(Config, AppFile) ->
OsType = os:type(),
SourceFiles = old_get_sources(Config),
Specs =
case rebar_config:get(Config, so_specs, undefined) of
undefined ->
Objects = port_objects(SourceFiles),
%% New form of so_specs is not provided. See if the old form
%% of {so_name} is available instead
Dir = "priv",
SoName = case rebar_config:get(Config, so_name, undefined) of
undefined ->
%% Ok, neither old nor new form is
%% available. Use the app name and
%% generate a sensible default.
AppName = rebar_app_utils:app_name(AppFile),
DrvName = ?FMT("~s_drv.so", [AppName]),
filename:join([Dir, DrvName]);
AName ->
%% Old form is available -- use it
filename:join(Dir, AName)
end,
[old_get_so_spec({SoName, Objects}, OsType)];
SoSpecs ->
[old_get_so_spec(S, OsType) || S <- SoSpecs]
end,
{SourceFiles, Specs}.
old_get_sources(Config) ->
RawSources = rebar_config:get_list(Config, port_sources,
["c_src/*.c"]),
FilteredSources = old_filter_port_sources(RawSources),
old_expand_sources(FilteredSources).
old_filter_port_sources(PortSources) ->
[S || S <- PortSources, old_is_arch_port_sources(S)].
old_is_arch_port_sources({Arch, _Sources}) -> rebar_utils:is_arch(Arch);
old_is_arch_port_sources(_Sources) -> true.
old_expand_sources(Sources) ->
lists:flatmap(fun filelib:wildcard/1, Sources).
old_get_so_spec({Target, Objects}, OsType) ->
#spec{type=drv,
target=maybe_switch_extension(OsType, Target),
sources=[],
objects=Objects,
opts=[]}.
%%
%% == port_env ==
%%
%%
%% Choose a compiler variable, based on a provided extension
@ -365,7 +469,6 @@ expand_keys_in_value([Key | Rest], Value, Vars) ->
end,
expand_keys_in_value(Rest, NewValue, Vars).
expand_command(TmplName, Env, InFiles, OutFile) ->
Cmd0 = proplists:get_value(TmplName, Env),
Cmd1 = rebar_utils:expand_env_variable(Cmd0, "PORT_IN_FILES", InFiles),
@ -426,7 +529,6 @@ filter_env([{ArchRegex, Key, Value} | Rest], Acc) ->
filter_env([{Key, Value} | Rest], Acc) ->
filter_env(Rest, [{Key, Value} | Acc]).
erts_dir() ->
lists:concat([code:root_dir(), "/erts-", erlang:system_info(version)]).
@ -520,81 +622,3 @@ default_env() ->
{"darwin11.*-32", "CXXFLAGS", "-m32 $CXXFLAGS"},
{"darwin11.*-32", "LDFLAGS", "-arch i386 $LDFLAGS"}
].
source_to_bin({_Target, Source}) ->
source_to_bin(Source);
source_to_bin(Source) ->
Ext = filename:extension(Source),
filename:rootname(Source, Ext) ++ ".o".
port_specs(Config, AppFile, Bins) ->
Specs = make_port_specs(Config, AppFile, Bins),
case os:type() of
{win32, nt} ->
[switch_to_dll_or_exe(Spec) || Spec <- Specs];
_ ->
Specs
end.
switch_to_dll_or_exe(Orig = {Name, Spec}) ->
case filename:extension(Name) of
".so" ->
{filename:rootname(Name, ".so") ++ ".dll", Spec};
[] ->
{Name ++ ".exe", Spec};
_ ->
%% Not a .so; leave it
Orig
end.
make_port_specs(Config, AppFile, Bins) ->
case rebar_config:get(Config, port_specs, undefined) of
undefined ->
%% TODO: DEPRECATED: remove
make_so_specs(Config, AppFile, Bins);
PortSpecs ->
%% filter based on ArchRegex
Specs0 = lists:filter(fun({ArchRegex, _Target, _Sources}) ->
rebar_utils:is_arch(ArchRegex);
(_) ->
true
end, PortSpecs),
%% TODO: DEPRECATED: remove support for non-port_specs syntax
%% drop ArchRegex from specs
lists:map(fun({_, Target, RawSources}) ->
{Target, sources_to_bins(RawSources)};
({Target, RawSources}) ->
{Target, sources_to_bins(RawSources)}
end, Specs0)
end.
sources_to_bins(RawSources) ->
Sources = lists:flatmap(fun filelib:wildcard/1, RawSources),
lists:map(fun source_to_bin/1, Sources).
%% DEPRECATED
make_so_specs(Config, AppFile, Bins) ->
case rebar_config:get(Config, so_specs, undefined) of
undefined ->
%% New form of so_specs is not provided. See if the old form
%% of {so_name} is available instead
Dir = "priv",
SoName = case rebar_config:get(Config, so_name, undefined) of
undefined ->
%% Ok, neither old nor new form is available. Use
%% the app name and generate a sensible default.
AppName = rebar_app_utils:app_name(AppFile),
filename:join(Dir,
lists:concat([AppName, "_drv.so"]));
AName ->
%% Old form is available -- use it
filename:join(Dir, AName)
end,
[{SoName, Bins}];
SoSpecs ->
SoSpecs
end.