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-rw-r--r--src/rebar_prv_install_deps.erl8
-rw-r--r--test/rebar_deps_SUITE.erl4
2 files changed, 10 insertions, 2 deletions
diff --git a/src/rebar_prv_install_deps.erl b/src/rebar_prv_install_deps.erl
index 461baa5..1be094c 100644
--- a/src/rebar_prv_install_deps.erl
+++ b/src/rebar_prv_install_deps.erl
@@ -81,6 +81,8 @@ do(State) ->
{ok, rebar_state:deps_to_build(State1,
lists:dropwhile(fun rebar_app_info:valid/1
, Sort -- ProjectApps))};
+ {error, {cycles, Cycles}} ->
+ {error, {?MODULE, {cycles, Cycles}}};
{error, Error} ->
{error, Error}
end
@@ -91,6 +93,12 @@ do(State) ->
end.
-spec format_error(any()) -> iolist().
+format_error({cycles, Cycles}) ->
+ Prints = [["applications: ",
+ [io_lib:format("~s ", [Dep]) || Dep <- Cycle],
+ "depend on each other~n"]
+ || Cycle <- Cycles],
+ ["Dependency cycle(s) detected:~n", Prints];
format_error(Reason) ->
io_lib:format("~p", [Reason]).
diff --git a/test/rebar_deps_SUITE.erl b/test/rebar_deps_SUITE.erl
index a98f690..656c3b5 100644
--- a/test/rebar_deps_SUITE.erl
+++ b/test/rebar_deps_SUITE.erl
@@ -47,11 +47,11 @@ deps(pick_earliest) ->
deps(circular1) ->
{[{"B", [{"A", []}]}, % A is the top-level app
{"C", []}],
- {error, {cycles, [[<<"A">>,<<"B">>]]}}}; % circular dep
+ {error, {rebar_prv_install_deps, {cycles, [[<<"A">>,<<"B">>]]}}}};
deps(circular2) ->
{[{"B", [{"C", [{"B", []}]}]},
{"C", []}],
- {error, {cycles, [[<<"B">>,<<"C">>]]}}}. % circular dep
+ {error, {rebar_prv_install_deps, {cycles, [[<<"B">>,<<"C">>]]}}}}.
end_per_testcase(_, Config) ->
mock_git_resource:unmock(),