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rebar_core: document pre-dirs association

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Tuncer Ayaz 2012-12-08 22:07:10 +01:00
parent e36b9c1bff
commit 2b9241bd2b
1 changed files with 17 additions and 16 deletions
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33
src/rebar_core.erl
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@ -187,11 +187,12 @@ process_dir1(Dir, Command, DirSet, Config0, CurrentCodePath,
{Config1, Predirs} = acc_modules(Modules, preprocess, Config0, {Config1, Predirs} = acc_modules(Modules, preprocess, Config0,
ModuleSetFile), ModuleSetFile),
SubdirAssoc = remember_cwd_subdir(Dir, Predirs), %% Remember associated pre-dirs (used for plugin lookup)
PredirsAssoc = remember_cwd_predirs(Dir, Predirs),
%% Get the list of plug-in modules from rebar.config. These %% Get the list of plug-in modules from rebar.config. These
%% modules may participate in preprocess and postprocess. %% modules may participate in preprocess and postprocess.
{ok, PluginModules} = plugin_modules(Config1, SubdirAssoc), {ok, PluginModules} = plugin_modules(Config1, PredirsAssoc),
{Config2, PluginPredirs} = acc_modules(PluginModules, preprocess, {Config2, PluginPredirs} = acc_modules(PluginModules, preprocess,
Config1, ModuleSetFile), Config1, ModuleSetFile),
@ -253,7 +254,7 @@ process_dir1(Dir, Command, DirSet, Config0, CurrentCodePath,
%% Return the updated {config, dirset} as result %% Return the updated {config, dirset} as result
Res. Res.
remember_cwd_subdir(Cwd, Subdirs) -> remember_cwd_predirs(Cwd, Predirs) ->
Store = fun(Dir, Dict) -> Store = fun(Dir, Dict) ->
case dict:find(Dir, Dict) of case dict:find(Dir, Dict) of
error -> error ->
@ -268,7 +269,7 @@ remember_cwd_subdir(Cwd, Subdirs) ->
Dict Dict
end end
end, end,
lists:foldl(Store, dict:new(), Subdirs). lists:foldl(Store, dict:new(), Predirs).
maybe_load_local_config(Dir, ParentConfig) -> maybe_load_local_config(Dir, ParentConfig) ->
%% We need to ensure we don't overwrite custom %% We need to ensure we don't overwrite custom
@ -488,9 +489,9 @@ acc_modules([Module | Rest], Command, Config, File, Acc) ->
%% %%
%% Return a flat list of rebar plugin modules. %% Return a flat list of rebar plugin modules.
%% %%
plugin_modules(Config, SubdirAssoc) -> plugin_modules(Config, PredirsAssoc) ->
Modules = lists:flatten(rebar_config:get_all(Config, plugins)), Modules = lists:flatten(rebar_config:get_all(Config, plugins)),
plugin_modules(Config, SubdirAssoc, ulist(Modules)). plugin_modules(Config, PredirsAssoc, ulist(Modules)).
ulist(L) -> ulist(L) ->
ulist(L, []). ulist(L, []).
@ -505,16 +506,16 @@ ulist([H | T], Acc) ->
ulist(T, [H | Acc]) ulist(T, [H | Acc])
end. end.
plugin_modules(_Config, _SubdirAssoc, []) -> plugin_modules(_Config, _PredirsAssoc, []) ->
{ok, []}; {ok, []};
plugin_modules(Config, SubdirAssoc, Modules) -> plugin_modules(Config, PredirsAssoc, Modules) ->
FoundModules = [M || M <- Modules, code:which(M) =/= non_existing], FoundModules = [M || M <- Modules, code:which(M) =/= non_existing],
plugin_modules(Config, SubdirAssoc, FoundModules, Modules -- FoundModules). plugin_modules(Config, PredirsAssoc, FoundModules, Modules -- FoundModules).
plugin_modules(_Config, _SubdirAssoc, FoundModules, []) -> plugin_modules(_Config, _PredirsAssoc, FoundModules, []) ->
{ok, FoundModules}; {ok, FoundModules};
plugin_modules(Config, SubdirAssoc, FoundModules, MissingModules) -> plugin_modules(Config, PredirsAssoc, FoundModules, MissingModules) ->
{Loaded, NotLoaded} = load_plugin_modules(Config, SubdirAssoc, {Loaded, NotLoaded} = load_plugin_modules(Config, PredirsAssoc,
MissingModules), MissingModules),
AllViablePlugins = FoundModules ++ Loaded, AllViablePlugins = FoundModules ++ Loaded,
case NotLoaded =/= [] of case NotLoaded =/= [] of
@ -528,7 +529,7 @@ plugin_modules(Config, SubdirAssoc, FoundModules, MissingModules) ->
end, end,
{ok, AllViablePlugins}. {ok, AllViablePlugins}.
load_plugin_modules(Config, SubdirAssoc, Modules) -> load_plugin_modules(Config, PredirsAssoc, Modules) ->
Cwd = rebar_utils:get_cwd(), Cwd = rebar_utils:get_cwd(),
PluginDir = case rebar_config:get_local(Config, plugin_dir, undefined) of PluginDir = case rebar_config:get_local(Config, plugin_dir, undefined) of
undefined -> undefined ->
@ -540,7 +541,7 @@ load_plugin_modules(Config, SubdirAssoc, Modules) ->
%% Find relevant sources in base_dir and plugin_dir %% Find relevant sources in base_dir and plugin_dir
Erls = string:join([atom_to_list(M)++"\\.erl" || M <- Modules], "|"), Erls = string:join([atom_to_list(M)++"\\.erl" || M <- Modules], "|"),
RE = "^" ++ Erls ++ "\$", RE = "^" ++ Erls ++ "\$",
BaseDir = get_plugin_base_dir(Cwd, SubdirAssoc), BaseDir = get_plugin_base_dir(Cwd, PredirsAssoc),
%% If a plugin is found both in base_dir and plugin_dir, the clash %% If a plugin is found both in base_dir and plugin_dir, the clash
%% will provoke an error and we'll abort. %% will provoke an error and we'll abort.
Sources = rebar_utils:find_files(PluginDir, RE, false) Sources = rebar_utils:find_files(PluginDir, RE, false)
@ -552,8 +553,8 @@ load_plugin_modules(Config, SubdirAssoc, Modules) ->
NotLoaded = [V || V <- Modules, FilterMissing(V)], NotLoaded = [V || V <- Modules, FilterMissing(V)],
{Loaded, NotLoaded}. {Loaded, NotLoaded}.
get_plugin_base_dir(Cwd, SubdirAssoc) -> get_plugin_base_dir(Cwd, PredirsAssoc) ->
case dict:find(Cwd, SubdirAssoc) of case dict:find(Cwd, PredirsAssoc) of
{ok, BaseDir} -> {ok, BaseDir} ->
BaseDir; BaseDir;
error -> error ->