Make the testsuite pass on Windows

Thought it still requires `sh` and a few Unix tools

example/sample-projects/hello_world/test/jbuild

@@ -6,4 +6,4 @@
 
 (alias
  ((name runtest)
-  (action (run diff -u ${path:hello_world.expected} ${path:hello_world.output}))))
+  (action (run diff -uw ${path:hello_world.expected} ${path:hello_world.output}))))

test/blackbox-tests/cram.mll

@@ -24,15 +24,21 @@ rule file = parse
       let items = file lexbuf in
       let temp_file = Filename.temp_file "jbuilder-test" ".output" in
       at_exit (fun () -> Sys.remove temp_file);
-      let temp_file_quote = Filename.quote temp_file in
       let buf = Buffer.create (String.length file_contents + 1024) in
       List.iter items ~f:(function
         | Output _ -> ()
         | Comment s -> Buffer.add_string buf s; Buffer.add_char buf '\n'
         | Command s ->
           Printf.bprintf buf "  $ %s\n" s;
+          let fd = Unix.openfile temp_file [O_WRONLY] 0 in
+          let pid =
+            Unix.create_process "sh" [|"sh"; "-c"; s|] Unix.stdin fd fd
+          in
+          Unix.close fd;
           let n =
-            Printf.ksprintf Sys.command "%s > %s 2> %s" s temp_file_quote temp_file_quote
+            match snd (Unix.waitpid [] pid) with
+            | WEXITED n -> n
+            | _ -> 255
           in
           List.iter (Io.lines_of_file temp_file) ~f:(fun line ->
             Printf.bprintf buf "  %s\n" line);

test/blackbox-tests/test-cases/lib-available/jbuild

@@ -6,4 +6,4 @@
 
 (alias
  ((name runtest)
-  (action (system "! ${lib-available:library-that-surely-doesnt-exist}"))))
+  (action (system "${lib-available:library-that-surely-doesnt-exist} && exit 1 || exit 0"))))

test/blackbox-tests/test-cases/lib-available/run.t

@@ -1,3 +1,3 @@
-  $ $JBUILDER build -j1 @runtest --root . --debug-dependency-path
+  $ $JBUILDER build -j1 @runtest --root . --debug-dependency-path 2>&1 | sed "s/ cmd /  sh /"
             sh alias runtest
             sh alias runtest

test/blackbox-tests/test-cases/redirections/jbuild

@@ -28,17 +28,17 @@
 (alias
  ((name runtest)
   (deps (stdout stdout.expected))
-  (action (run diff -u stdout.expected stdout))))
+  (action (run diff -uw  stdout.expected stdout))))
 
 (alias
  ((name runtest)
   (deps (stderr stderr.expected))
-  (action (run diff -u stderr.expected stderr))))
+  (action (run diff -uw stderr.expected stderr))))
 
 (alias
  ((name runtest)
   (deps (both both.expected))
-  (action (run diff -u both.expected both))))
+  (action (run diff -uw both.expected both))))
 
 (alias
  ((name runtest)

test/blackbox-tests/test-cases/redirections/run.t

@@ -1,4 +1,4 @@
-  $ $JBUILDER runtest -j1 --root .
+  $ $JBUILDER runtest -j1 --root . 2>&1 | sed "s/ cmd /  sh /"
             sh stderr,stdout
             sh both
             sh stderr,stdout

test/common/test_common.ml

@@ -24,10 +24,19 @@ module Print_diff = struct
     match diff_command with
     | Some s -> ignore (exec s : bool)
     | None ->
-      if exec (patdiff_cmd ~use_color) then (
+      let has_patdiff =
-        Printf.eprintf "File \"%s\", line 1, characters 0-0:\n%!" file1;
+        let dev_null = if Sys.win32 then "nul" else "/dev/null" in
-        ignore (exec "diff -u" : bool);
+        Printf.ksprintf Sys.command "patdiff -version > %s 2> %s"
-      )
+          dev_null dev_null = 0
+      in
+      if has_patdiff then begin
+        if exec (patdiff_cmd ~use_color) then begin
+          (* Use "diff" if "patdiff" reported no differences *)
+          Printf.eprintf "File \"%s\", line 1, characters 0-0:\n%!" file1;
+          ignore (exec "diff -u" : bool);
+        end
+      end else
+        ignore (exec "diff -u" : bool)
 end
 
 let read_file file =

test/unit-tests/jbuild

@@ -4,6 +4,7 @@
  ((name expect_test)
   (modules (expect_test))
   (link_flags (-linkall))
+  (modes (byte))
   (libraries (unix jbuilder compiler-libs.toplevel test_common))))
 
 (ocamllex (expect_test))
@@ -14,25 +15,25 @@
          (glob_files ${SCOPE_ROOT}/src/*.cmi)
          (glob_files ${SCOPE_ROOT}/vendor/re/*.cmi)
          (files_recursively_in findlib-db)))
-  (action (chdir ${SCOPE_ROOT} (run ${exe:expect_test.bc} ${<})))))
+  (action (chdir ${SCOPE_ROOT} (run ${exe:expect_test.exe} ${<})))))
 
 (alias
  ((name runtest)
   (deps (filename.mlt
          (glob_files ${SCOPE_ROOT}/src/*.cmi)
          (glob_files ${SCOPE_ROOT}/vendor/re/*.cmi)))
-  (action (chdir ${SCOPE_ROOT} (run ${exe:expect_test.bc} ${<})))))
+  (action (chdir ${SCOPE_ROOT} (run ${exe:expect_test.exe} ${<})))))
 
 (alias
  ((name runtest)
   (deps (import_dot_map.mlt
          (glob_files ${SCOPE_ROOT}/src/*.cmi)
          (glob_files ${SCOPE_ROOT}/vendor/re/*.cmi)))
-  (action (chdir ${SCOPE_ROOT} (run ${exe:expect_test.bc} ${<})))))
+  (action (chdir ${SCOPE_ROOT} (run ${exe:expect_test.exe} ${<})))))
 
 (alias
  ((name runtest)
   (deps (action.mlt
          (glob_files ${SCOPE_ROOT}/src/*.cmi)
          (glob_files ${SCOPE_ROOT}/vendor/re/*.cmi)))
-  (action (chdir ${SCOPE_ROOT} (run ${exe:expect_test.bc} ${<})))))
+  (action (chdir ${SCOPE_ROOT} (run ${exe:expect_test.exe} ${<})))))