Fix flags for BuckleScript packages so that ppxs binaries can be found (#360)

* Fix FLG from Merlin for BuckleScript ppx-flags to point to node_modules/.bin

* Add example for bs 7.0.1

* Change ppx path to include package folder and remove node_modules/.bin prefixing

* use jsx3 and latest reason-react to see if this fixes windows ppx issues

* try building whole project before running bsc commands

* Revert "try building whole project before running bsc commands"

This reverts commit eea2b94.

* call npm install from outside ExampleTests + use script instead of bash in yaml template

* ggggaahhhhh

* try to debug some stuff

* add npm build and logging

* run

* try yarn

* revert changes and use node 12

* yarn

* namespace

* try different example

* appveyor simple

* remove more

* node 12

* y

* f

* n

* Revert "n"

This reverts commit d25fcf9.

* 64

* 2019

* roll back changes

* remove new example

Author: jchavarri

src/analyze/Packages.re

@@ -161,7 +161,7 @@ let newBsPackage = (~overrideBuildSystem=?, ~reportDiagnostics, state, rootPath)
       let ppxs = config |> Json.get("ppx-flags") |?> Json.array |?>> Utils.filterMap(Json.string) |? [];
       Log.log("Getting hte ppxs yall");
       let flags = flags @ (Belt.List.map(ppxs, name => {
-        MerlinFile.fixPpx("-ppx " ++ Filename.quote(name), rootPath)
+        MerlinFile.fixPpxBsNative("-ppx " ++ Filename.quote(name), rootPath)
       }));
       let flags = switch (config |> Json.get("warnings") |?> Json.get("number") |?> Json.string) {
         | None => flags
@@ -171,7 +171,10 @@ let newBsPackage = (~overrideBuildSystem=?, ~reportDiagnostics, state, rootPath)
         "-ppx " ++ bsPlatform /+ "lib" /+ "bsppx.exe"
       ], opens)
     | _ => {
-      let flags = MerlinFile.getFlags(rootPath) |> RResult.withDefault([""]) |> List.map(escapePreprocessingFlags);
+      let flags =
+        MerlinFile.getFlags(rootPath)
+        |> RResult.withDefault([""])
+        |> List.map(escapePreprocessingFlags);
       let opens = List.fold_left((opens, item) => {
         let parts = Utils.split_on_char(' ', item);
         let rec loop = items => switch items {

util/MerlinFile.re

@@ -5,7 +5,7 @@ let debug = ref(false);
 let maybeLog = message => if (debug^) { Log.log("[MerlinFile]: " ++ message) };
 
 /** This is a dirty hack to get around the bug in bsb native that doesn't do the proper ppx flags for ppxs */
-let fixPpx = (flg, base) => {
+let fixPpxBsNative = (flg, base) => {
   switch (Str.split(Str.regexp_string(" "), flg)) {
     | ["-ppx", ppx] when Str.string_match(Str.regexp("[a-zA-Z_]+"), ppx, 0) && !Str.string_match(Str.regexp("[a-zA-Z_]:"), ppx, 0) => {
       "-ppx " ++ (base /+ "lib" /+ "bs" /+ "native" /+ String.lowercase_ascii(ppx) ++ ".native")
@@ -19,7 +19,7 @@ let parseMerlin = (base, text) => {
   List.fold_left(
     ((source, build, flags), line) => {
       if (Utils.startsWith(line, "FLG ")) {
-        (source, build, [fixPpx(Utils.chopPrefix(line, "FLG "), base), ...flags])
+        (source, build, [Utils.chopPrefix(line, "FLG "), ...flags])
       } else if (Utils.startsWith(line, "S ")) {
         ([Utils.chopPrefix(line, "S "), ...source], build, flags)
       } else if (Utils.startsWith(line, "B ")) {

util/MerlinFile.rei

@@ -1,5 +1,5 @@
 let debug: ref(bool);
-let fixPpx: (string, string) => string;
+let fixPpxBsNative: (string, string) => string;
 let parseMerlin:
   (string, string) => (list(string), list(string), list(string));
 let isRelativePath: string => bool;
@@ -45,4 +45,4 @@ let getModulesFromMerlin:
     list(string),
   );
 let getFlags: string => RResult.result(list(string), string);
-let getBackend: string => RResult.result(string, string);
+let getBackend: string => RResult.result(string, string);