1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
-module(rebar_agent).
-export([start_link/1, do/1, do/2]).
-export([init/1,
handle_call/3, handle_cast/2, handle_info/2,
code_change/3, terminate/2]).
-record(state, {state,
cwd}).
start_link(State) ->
gen_server:start_link({local, ?MODULE}, ?MODULE, State, []).
do(Command) when is_atom(Command) ->
gen_server:call(?MODULE, {cmd, Command}, infinity).
do(Namespace, Command) when is_atom(Namespace), is_atom(Command) ->
gen_server:call(?MODULE, {cmd, Namespace, Command}, infinity).
init(State0) ->
Cwd = file:get_cwd(),
State = rebar_state:update_code_paths(State0, default, code:get_path()),
{ok, #state{state=State, cwd=Cwd}}.
handle_call({cmd, Command}, _From, State=#state{state=RState, cwd=Cwd}) ->
Res = try
case file:get_cwd() of
Cwd ->
case rebar_core:process_command(RState, Command) of
{ok, _} ->
refresh(RState),
ok;
{error, Err} when is_list(Err) ->
refresh(RState),
{error, lists:flatten(Err)};
{error, Err} ->
refresh(RState),
{error, Err}
end;
_ ->
{error, cwd_changed}
end
catch
Type:Reason ->
{error, {Type, Reason}}
end,
{reply, Res, State};
handle_call({cmd, Namespace, Command}, From, State = #state{state=RState}) ->
{reply, Res, _} = handle_call({cmd, Command}, From, State#state{
state = rebar_state:namespace(RState, Namespace)
}),
{reply, Res, State};
handle_call(_Call, _From, State) ->
{noreply, State}.
handle_cast(_Cast, State) ->
{noreply, State}.
handle_info(_Info, State) ->
{noreply, State}.
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
terminate(_Reason, _State) ->
ok.
refresh(RState) ->
ToRefresh = rebar_state:code_paths(RState, all_deps)
%% make sure to never reload self; halt()s the VM
-- [filename:dirname(code:which(?MODULE))],
rebar_utils:update_code(ToRefresh).
|
