add precautions for "testing an alpha binary" phase

Made two temporary changes:

- disable publishing
- switch to elm-stuff/0.19.1-alpha-1/

The hope is that these things will avoid causing problems for current
or future release.

Author: evancz

builder/src/Stuff.hs

@@ -62,7 +62,7 @@ prepublishDir root =
 
 compilerVersion :: FilePath
 compilerVersion =
-  V.toChars V.compiler
+  V.toChars V.compiler ++ "-alpha-1"
 
 
 

terminal/src/Publish.hs

@@ -367,6 +367,11 @@ verifyBump (Env _ cache manager _ _) pkg vsn newDocs knownVersions@(Registry.Kno
 
 register :: Http.Manager -> Pkg.Name -> V.Version -> Docs.Documentation -> String -> Http.Sha -> Task.Task Exit.Publish ()
 register manager pkg vsn docs commitHash sha =
+  if True then
+    Task.io $ putStrLn $
+      "Publishing is disabled in this ALPHA release.\n\
+      \Publish with 0.19.0 for now.\n"
+  else
   let
     url =
       Website.route "/register"