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authorEric <[email protected]>2012-12-10 15:04:12 -0500
committerEric <[email protected]>2012-12-10 15:07:25 -0500
commitc3e728afb67101480d0c7b52c51bc522f08fb08f (patch)
treef1fe9d5c6ddcf6626c84b9121ce1d334d776556e /src
parent902d2f4718f4eec674252cb5643c0dd137d741e0 (diff)
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if no config is specified search for a `relcool.config` in the path
Diffstat (limited to 'src')
-rw-r--r--src/rcl_prv_config.erl50
-rw-r--r--src/rcl_state.erl5
2 files changed, 53 insertions, 2 deletions
diff --git a/src/rcl_prv_config.erl b/src/rcl_prv_config.erl
index ee1c770..7ea9a77 100644
--- a/src/rcl_prv_config.erl
+++ b/src/rcl_prv_config.erl
@@ -29,8 +29,12 @@ init(State) ->
%% populating the state as a result.
-spec do(rcl_state:t()) ->{ok, rcl_state:t()} | relcool:error().
do(State) ->
- ConfigFiles = rcl_state:config_files(State),
- lists:foldl(fun load_config/2, {ok, State}, ConfigFiles).
+ case rcl_state:config_files(State) of
+ [] ->
+ search_for_dominating_config(State);
+ ConfigFiles ->
+ lists:foldl(fun load_config/2, {ok, State}, ConfigFiles)
+ end.
-spec format_error(Reason::term()) -> iolist().
format_error({consult, ConfigFile, Reason}) ->
@@ -42,6 +46,48 @@ format_error({invalid_term, Term}) ->
%%%===================================================================
%%% Internal Functions
%%%===================================================================
+search_for_dominating_config({ok, Cwd}) ->
+ ConfigFile = filename:join(Cwd, "relcool.config"),
+ case ec_file:exists(ConfigFile) of
+ true ->
+ {ok, ConfigFile};
+ false ->
+ search_for_dominating_config(parent_dir(Cwd))
+ end;
+search_for_dominating_config({error, _}) ->
+ no_config;
+search_for_dominating_config(State0) ->
+ {ok, Cwd} = file:get_cwd(),
+ case search_for_dominating_config({ok, Cwd}) of
+ {ok, Config} ->
+ %% we need to set the root dir on state as well
+ {ok, RootDir} = parent_dir(Config),
+ State1 = rcl_state:root_dir(State0, RootDir),
+ load_config(Config, {ok, rcl_state:config_files(State1, [Config])});
+ no_config ->
+ {ok, State0}
+ end.
+
+%% @doc Given a directory returns the name of the parent directory.
+-spec parent_dir(Filename::string()) ->
+ {ok, DirName::string()} | {error, no_parent_dir}.
+parent_dir(Filename) ->
+ parent_dir(filename:split(Filename), []).
+
+%% @doc Given list of directories, splits the list and returns all dirs but the
+%% last as a path.
+-spec parent_dir([string()], [string()]) ->
+ {ok, DirName::string()} | {error, no_parent_dir}.
+parent_dir([_H], []) ->
+ {error, no_parent_dir};
+parent_dir([], []) ->
+ {error, no_parent_dir};
+parent_dir([_H], Acc) ->
+ {ok, filename:join(lists:reverse(Acc))};
+parent_dir([H | T], Acc) ->
+ parent_dir(T, [H | Acc]).
+
+
-spec load_config(file:filename(), {ok, rcl_state:t()} | relcool:error()) ->
{ok, rcl_state:t()} | relcool:error().
load_config(_, Err = {error, _}) ->
diff --git a/src/rcl_state.erl b/src/rcl_state.erl
index d324bf9..bd26a47 100644
--- a/src/rcl_state.erl
+++ b/src/rcl_state.erl
@@ -31,6 +31,7 @@
overrides/2,
goals/1,
config_files/1,
+ config_files/2,
providers/1,
providers/2,
sys_config/1,
@@ -140,6 +141,10 @@ goals(#state_t{goals=TS}) ->
config_files(#state_t{config_files=ConfigFiles}) ->
ConfigFiles.
+-spec config_files(t(), [file:filename()]) -> t().
+config_files(State, ConfigFiles) ->
+ State#state_t{config_files=ConfigFiles}.
+
-spec providers(t()) -> [rcl_provider:t()].
providers(#state_t{providers=Providers}) ->
Providers.