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-rw-r--r--src/rebar_reltool.erl109
1 files changed, 85 insertions, 24 deletions
diff --git a/src/rebar_reltool.erl b/src/rebar_reltool.erl
index e1ffbe0..a354b26 100644
--- a/src/rebar_reltool.erl
+++ b/src/rebar_reltool.erl
@@ -39,11 +39,11 @@ generate(Config, ReltoolFile) ->
ReltoolConfig = load_config(ReltoolFile),
%% Spin up reltool server and load our config into it
- {ok, Server} = reltool:start_server([{sys, ReltoolConfig}]),
+ {ok, Server} = reltool:start_server([sys_tuple(ReltoolConfig)]),
%% Do some validation of the reltool configuration; error messages out of
%% reltool are still pretty cryptic
- validate_rel_apps(Server, ReltoolConfig),
+ validate_rel_apps(Server, sys_tuple(ReltoolConfig)),
%% Finally, run reltool
case catch(run_reltool(Config, ReltoolConfig)) of
@@ -59,7 +59,7 @@ generate(Config, ReltoolFile) ->
clean(Config, ReltoolFile) ->
ReltoolConfig = load_config(ReltoolFile),
- TargetDir = target_dir(Config, ReltoolConfig),
+ TargetDir = target_dir(Config, sys_tuple(ReltoolConfig)),
rebar_file_utils:rm_rf(TargetDir),
rebar_file_utils:delete_each(["reltool.spec"]).
@@ -69,11 +69,20 @@ clean(Config, ReltoolFile) ->
%% Internal functions
%% ===================================================================
+sys_tuple(ReltoolConfig) ->
+ case lists:keysearch(sys, 1, ReltoolConfig) of
+ {value, {sys, Data}} ->
+ {sys, Data};
+ false ->
+ ?ERROR("Failed to find {sys, ...} tuple in reltool.config.", []),
+ ?FAIL
+ end.
+
load_config(ReltoolFile) ->
%% Load the reltool configuration from the file
case file:consult(ReltoolFile) of
- {ok, [{sys, ReltoolConfig}]} ->
- ReltoolConfig;
+ {ok, Terms} ->
+ Terms;
Other ->
?ERROR("Failed to load expected config from ~s: ~p\n", [ReltoolFile, Other]),
?FAIL
@@ -85,7 +94,7 @@ load_config(ReltoolFile) ->
%% first, or fall back to the release name if that's available. If neither
%% is available, just use "target"
%%
-target_dir(Config, ReltoolConfig) ->
+target_dir(Config, {sys, ReltoolConfig}) ->
case rebar_config:get(Config, target_name, undefined) of
undefined ->
case lists:keysearch(rel, 1, ReltoolConfig) of
@@ -98,7 +107,7 @@ target_dir(Config, ReltoolConfig) ->
Name
end.
-validate_rel_apps(ReltoolServer, ReltoolConfig) ->
+validate_rel_apps(ReltoolServer, {sys, ReltoolConfig}) ->
case lists:keysearch(rel, 1, ReltoolConfig) of
{value, {rel, _Name, _Vsn, Apps}} ->
%% Identify all the apps that do NOT exist, based on what's available
@@ -132,26 +141,22 @@ app_exists(AppTuple, Server) when is_tuple(AppTuple) ->
run_reltool(Config, ReltoolConfig) ->
- {ok, Server} = reltool:start_server([{sys, ReltoolConfig}]),
+ {ok, Server} = reltool:start_server([sys_tuple(ReltoolConfig)]),
case reltool:get_target_spec(Server) of
{ok, Spec} ->
dump_spec(Spec),
- TargetDir = target_dir(Config, ReltoolConfig),
- case file:make_dir(TargetDir) of
- ok ->
- ok;
- {error, eexist} ->
- %% Output directory already exists; if force=1, wipe it out
- case rebar_config:get_global(force, "0") of
- "1" ->
- rebar_file_utils:rm_rf(TargetDir),
- ok = file:make_dir(TargetDir);
- _ ->
- ?ERROR("Release target directory ~p already exists!\n", [TargetDir]),
- ?FAIL
- end
- end,
- case reltool:eval_target_spec(Spec, code:root_dir(), TargetDir) of
+ TargetDir = target_dir(Config, sys_tuple(ReltoolConfig)),
+ mk_target_dir(TargetDir),
+
+ %% Post process the specification with rebar directives (if any exist)
+ FinalSpec = case lists:keysearch(rebar, 1, ReltoolConfig) of
+ {value, {rebar, RebarConfig}} ->
+ process_rebar_specs(RebarConfig, Spec);
+ false ->
+ Spec
+ end,
+
+ case reltool:eval_target_spec(FinalSpec, code:root_dir(), TargetDir) of
ok ->
ok;
{error, Reason} ->
@@ -162,6 +167,23 @@ run_reltool(Config, ReltoolConfig) ->
?ERROR("Unable to generate spec: ~s\n", [Reason]),
?FAIL
end.
+
+
+mk_target_dir(TargetDir) ->
+ case file:make_dir(TargetDir) of
+ ok ->
+ ok;
+ {error, eexist} ->
+ %% Output directory already exists; if force=1, wipe it out
+ case rebar_config:get_global(force, "0") of
+ "1" ->
+ rebar_file_utils:rm_rf(TargetDir),
+ ok = file:make_dir(TargetDir);
+ _ ->
+ ?ERROR("Release target directory ~p already exists!\n", [TargetDir]),
+ ?FAIL
+ end
+ end.
dump_spec(Spec) ->
@@ -173,3 +195,42 @@ dump_spec(Spec) ->
ok
end.
+post_process_spec(ReltoolConfig, Spec) ->
+ case lists:keysearch(rebar, 1, ReltoolConfig) of
+ {value, RebarConfig} ->
+ process_rebar_specs(RebarConfig, Spec);
+ false ->
+ Spec
+ end.
+
+process_rebar_specs([], Spec) ->
+ Spec;
+process_rebar_specs([{empty_dirs, Dirs} | Rest], Spec) ->
+ Spec2 = lists:foldl(fun(Dir, SpecAcc) ->
+ spec_create_dir(filename:split(Dir), SpecAcc)
+ end, Spec, Dirs),
+ process_rebar_specs(Rest, Spec2);
+process_rebar_specs([ Other | Rest], Spec) ->
+ ?WARN("Ignoring unknown rebar spec: ~p\n", [Other]),
+ process_rebar_specs(Rest, Spec).
+
+
+spec_create_dir([], Spec) ->
+ Spec;
+spec_create_dir([Path | Rest], Spec) ->
+ case lists:keysearch(Path, 2, Spec) of
+ {value, {create_dir, Path, Subspec}} ->
+ %% Directory already exists; process down into
+ %% Note: this is not tail recursive, but unless the directory structure
+ %% is insanely deep, shouldn't be a problem
+ lists:keystore(Path, 2, Spec, {create_dir, Path, spec_create_dir(Rest, Subspec)});
+ {value, Other} ->
+ %% Collision -- something other than create_dir is associated with this
+ %% portion of our path name.
+ ?ERROR("Collision of path name with existing tuple in spec: ~p\n", [Other]),
+ ?FAIL;
+ false ->
+ %% Directory doesn't yet exist
+ [{create_dir, Path, spec_create_dir(Rest, [])} | Spec]
+ end.
+