From fefa3bfebb38327706c8c47ddbd5d84d8fb26ef6 Mon Sep 17 00:00:00 2001
From: Fred Hebert <mononcqc@ferd.ca>
Date: Fri, 11 Oct 2019 16:56:18 -0400
Subject: Handle missing OTP apps better

Otherwise we only get silent failures. This has been fixed a while ago
in mainline rebar3 but never in the bootstrap script.
---
 bootstrap | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

(limited to 'bootstrap')

diff --git a/bootstrap b/bootstrap
index 29b7f75..ada49df 100755
--- a/bootstrap
+++ b/bootstrap
@@ -3,10 +3,10 @@
 %% ex: ft=erlang ts=4 sw=4 et
 
 main(_) ->
-    application:start(crypto),
-    application:start(asn1),
-    application:start(public_key),
-    application:start(ssl),
+    ensure_app(crypto),
+    ensure_app(asn1),
+    ensure_app(public_key),
+    ensure_app(ssl),
     inets:start(),
     inets:start(httpc, [{profile, rebar}]),
     set_httpc_options(),
@@ -57,6 +57,17 @@ main(_) ->
     %% Done with compile, can turn back on error logger
     error_logger:tty(true).
 
+ensure_app(App) ->
+    case application:start(App) of
+        ok ->
+            ok;
+        {error, _} ->
+            io:format("OTP Application ~p not available. Please fix "
+                      "your Erlang install to support it and try "
+                      "again.~n", [App]),
+            halt(1)
+    end.
+
 fetch_and_compile({Name, ErlFirstFiles}, Deps) ->
     case lists:keyfind(Name, 1, Deps) of
         {Name, Vsn} ->
-- 
cgit v1.1