From c07b0954ebac6913dba82b3e81bca7f7a39d8293 Mon Sep 17 00:00:00 2001 From: Tim Watson Date: Mon, 23 May 2011 12:46:03 +0100 Subject: Allow plugins to run before/after a rebar command. This patch makes a small change in rebar_core that checks the list of valid plugins to see if any of them export a pre/post processing function for the current command. This logic is applied only to the plugins and allows plugin authors to hook into rebar's execution by using a naming convention that matches the one used for scripting hooks. Example: ```erlang -module(my_rebar_plugin). -export([pre_compile/2]). pre_compile(Config, AppFile) -> rebar_log:log(debug, "PRECOMPILE: ~p:~p~n", [AppFile, Config]), ok. ``` --- src/rebar_core.erl | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/src/rebar_core.erl b/src/rebar_core.erl index f17ed0b..cb2c508 100644 --- a/src/rebar_core.erl +++ b/src/rebar_core.erl @@ -148,9 +148,17 @@ process_dir(Dir, ParentConfig, Command, DirSet) -> %% in preprocess. {ok, PluginModules} = plugin_modules(Config), + %% Execute any before_command plugins on this directory + execute_pre(Command, PluginModules, + Config, ModuleSetFile), + %% Execute the current command on this directory execute(Command, Modules ++ PluginModules, - Config, ModuleSetFile) + Config, ModuleSetFile), + + %% Execute any after_command plugins on this directory + execute_post(Command, PluginModules, + Config, ModuleSetFile) end, %% Mark the current directory as processed @@ -215,6 +223,17 @@ is_dir_type(rel_dir, Dir) -> is_dir_type(_, _) -> false. +execute_pre(Command, Modules, Config, ModuleFile) -> + execute_plugin_hook("pre_", Command, Modules, + Config, ModuleFile). + +execute_post(Command, Modules, Config, ModuleFile) -> + execute_plugin_hook("post_", Command, Modules, + Config, ModuleFile). + +execute_plugin_hook(Hook, Command, Modules, Config, ModuleFile) -> + HookFunction = list_to_atom(Hook ++ atom_to_list(Command)), + execute(HookFunction, Modules, Config, ModuleFile). %% %% Execute a command across all applicable modules -- cgit v1.1