Abstracted path management

Move path management out of rebar_utils manual code path function
handling (which we leave there for backwards compat), and centralize
them to allow easier coordination of paths between plugins and deps.

On top of path handling, do a check of loaded modules to only purge and
reload those that actually need it done in order to prevent all kinds of
weird interaction and accidental purge kills. It also allows the
possible cohabitation of both at once, with a "in case of conflict pick
X" as a policy

Changing path handling in providers also highlighted a bunch of bugs in
some tests and appears to fix some in other providers, specifically
around plugins.

1 files changed, 5 insertions, 7 deletions

diff --git a/src/rebar_prv_common_test.erl b/src/rebar_prv_common_test.erl
index 9e71ee7..3d3bd8a 100644
--- a/src/rebar_prv_common_test.erl
+++ b/src/rebar_prv_common_test.erl
@@ -58,7 +58,7 @@ do(State) ->
 
 do(State, Tests) ->
     ?INFO("Running Common Test suites...", []),
-    rebar_utils:update_code(rebar_state:code_paths(State, all_deps), [soft_purge]),
+    rebar_paths:set_paths([deps, plugins], State),
 
     %% Run ct provider prehooks
     Providers = rebar_state:providers(State),
@@ -73,14 +73,14 @@ do(State, Tests) ->
                 ok    ->
                     %% Run ct provider post hooks for all project apps and top level project hooks
                     rebar_hooks:run_project_and_app_hooks(Cwd, post, ?PROVIDER, Providers, State),
-                    rebar_utils:cleanup_code_path(rebar_state:code_paths(State, default)),
+                    rebar_paths:set_paths([plugins, deps], State),
                     {ok, State};
                 Error ->
-                    rebar_utils:cleanup_code_path(rebar_state:code_paths(State, default)),
+                    rebar_paths:set_paths([plugins, deps], State),
                     Error
             end;
         Error ->
-            rebar_utils:cleanup_code_path(rebar_state:code_paths(State, default)),
+            rebar_paths:set_paths([plugins, deps], State),
             Error
     end.
 
@@ -250,11 +250,9 @@ select_tests(State, ProjectApps, CmdOpts, CfgOpts) ->
                             end, SysConfigs),
     %% NB: load the applications (from user directories too) to support OTP < 17
     %% to our best ability.
-    OldPath = code:get_path(),
-    code:add_pathsa(rebar_state:code_paths(State, all_deps)),
+    rebar_paths:set_paths([deps, plugins], State),
     [application:load(Application) || Config <- Configs, {Application, _} <- Config],
     rebar_utils:reread_config(Configs),
-    code:set_path(OldPath),
 
     Opts = merge_opts(CmdOpts,CfgOpts),
     discover_tests(State, ProjectApps, Opts).