test redirection

Author: anmonteiro

ppx/test/component-without-make.t/run.t

@@ -1,6 +1,6 @@
 Since we generate invalid syntax for the argument of the make fn `(Props : <>)`
 We need to output ML syntax here, otherwise refmt could not parse it.
-  $ bash ../ppx.sh --output ml input.re
+  $ ../run-ppx.sh --output ml input.re
   module X_as_main_function =
     struct
       external xProps : ?key:string -> unit -> <  >  Js.t = ""[@@mel.obj ]

ppx/test/dune

@@ -7,4 +7,5 @@
   %{bin:jq}
   %{bin:ocamlmerlin}
   %{bin:bash}
-  ppx.sh))
+  ppx.sh
+  run-ppx.sh))

ppx/test/ppx.sh

@@ -1,6 +1,4 @@
-#!/bin/sh
-
-set -e
+set -eo pipefail
 
 function usage() {
   echo "Usage: $(basename "$0") --output re [file.re]"

ppx/test/run-ppx.sh

@@ -0,0 +1,6 @@
+
+root_path=$PWD
+
+bash "$(dirname "$0")/ppx.sh" "$@"
+
+cd "$root_path"