move to dune 2.0 and manual qtest

dune

@@ -1,8 +1,8 @@
 
-(alias
- (name runtest)
+(rule
+ (alias runtest)
  (deps (:readme README.md))
  (action (progn
-          (run mdx test %{readme})
+          (run ocaml-mdx test %{readme})
           (diff? %{readme} %{readme}.corrected))))
 

dune-project

@@ -1 +1 @@
-(lang dune 1.1)
+(lang dune 2.0)

lwt-pipe.opam

@@ -10,7 +10,7 @@ build: [
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
 ]
 depends: [
-  "dune" {>= "1.1"}
+  "dune" {>= "2.0"}
   "lwt"
   "ocaml" { >= "4.03.0" }
   "mdx" {with-test}

qtest/Makefile

@@ -0,0 +1,17 @@
+
+DONTTEST=
+QTESTABLE=$(filter-out $(DONTTEST), \
+	$(wildcard ../src/*.ml) \
+	$(wildcard ../src/*.mli) \
+	)
+
+qtest-gen:
+	@rm run_qtest.ml 2>/dev/null || true
+	@if which qtest > /dev/null ; then \
+		qtest extract \
+			-o run_qtest.ml \
+			$(QTESTABLE) 2> /dev/null ; \
+	else touch run_qtest.ml ; \
+	fi
+
+.PHONY: qtest-gen

qtest/dune

@@ -0,0 +1,17 @@
+
+(rule
+  (targets run_qtest.ml)
+  (deps Makefile (source_tree ../src)) ; (glob_files ../src/**/*.ml{,i})))
+  (mode fallback)
+  (action (run make qtest-gen)))
+
+(executable
+  (name run_qtest)
+  (flags :standard -warn-error -a+8 -safe-string -w -33)
+  (libraries lwt-pipe qcheck))
+
+(rule
+ (alias runtest)
+ (deps (:bin run_qtest.exe))
+ (action  (run %{bin})))
+

src/dune

@@ -4,5 +4,4 @@
  (public_name lwt-pipe)
  (wrapped false)
  (libraries lwt lwt.unix)
- (inline_tests (backend qtest.lib))
- (flags :standard -w +a-4 -safe-string))
+ (flags :standard -w +a-4 -warn-error -a+8 -safe-string))