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author | Pedram Nimreezi <deadzen@deadzen.com> | 2013-02-04 15:20:30 -0500 |
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committer | Pedram Nimreezi <deadzen@deadzen.com> | 2013-03-26 05:23:47 -0400 |
commit | df7cfba71f530f9009e3afdd9efb4a28b3b9f91a (patch) | |
tree | abb5bd8b04d3bc895584a1d00991ea55dfbd70ca | |
parent | 720d71e47dcc7ffffba032395611228e321e6fb9 (diff) |
Implement merged overlays
This allows overlay_vars to merge comma delimited var config files
-rw-r--r-- | src/rebar_reltool.erl | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/src/rebar_reltool.erl b/src/rebar_reltool.erl index 18b0702..9f9488e 100644 --- a/src/rebar_reltool.erl +++ b/src/rebar_reltool.erl @@ -166,22 +166,32 @@ process_overlay(Config, ReltoolConfig) -> %% providing an additional file on the command-line. %% overlay_vars(Config, Vars0, ReltoolConfig) -> - BaseVars = load_vars_file(proplists:get_value(overlay_vars, ReltoolConfig)), - OverrideVars = load_vars_file(rebar_config:get_global(Config, - overlay_vars, - undefined)), - M = fun(_Key, _Base, Override) -> Override end, + BaseVars = load_vars_file([proplists:get_value(overlay_vars, ReltoolConfig)]), + OverlayVars = rebar_config:get_global(Config, overlay_vars, []), + OverrideVars = load_vars_file(string:tokens(OverlayVars, ",")), + M = fun merge_overlay_var/3, dict:merge(M, dict:merge(M, Vars0, BaseVars), OverrideVars). +merge_overlay_var(_Key, _Base, Override) -> Override. + %% %% If a filename is provided, construct a dict of terms %% -load_vars_file(undefined) -> +load_vars_file([undefined]) -> + dict:new(); +load_vars_file([]) -> dict:new(); -load_vars_file(File) -> +load_vars_file(Files) -> + load_vars_file(Files, dict:new()). + +load_vars_file([], Dict) -> + Dict; +load_vars_file([File | Files], BaseVars) -> case rebar_config:consult_file(File) of {ok, Terms} -> - dict:from_list(Terms); + OverrideVars = dict:from_list(Terms), + M = fun merge_overlay_var/3, + load_vars_file(Files, dict:merge(M, BaseVars, OverrideVars)); {error, Reason} -> ?ABORT("Unable to load overlay_vars from ~p: ~p\n", [File, Reason]) end. |