Prepare to format OCaml and convert Reason code

Summary:
Add support for converting without actually converting. To be used as
a landing pad for rebasing over the conversion.

Reviewed By: jvillard

Differential Revision: D5379967

fbshipit-source-id: 1bd932d

.ocamlformat

@@ -0,0 +1,2 @@
+margin 100
+sparse true

Makefile

@@ -111,6 +111,30 @@ fb-setup:
 	$(QUIET)$(call silent_on_success,Facebook setup,\
 	$(MAKE) -C facebook setup)
 
+OCAMLFORMAT_EXE=facebook/dependencies/ocamlformat/src/_build/opt/ocamlformat.exe
+
+SRC_ML:=$(shell find * \( -name _build -or -name facebook-clang-plugins -or -path facebook/dependencies \) -not -prune -or -type f -and -name '*'.ml -or -name '*'.mli 2>/dev/null)
+
+.PHONY: fmt_all_ml
+fmt_all_ml:
+	parallel $(OCAMLFORMAT_EXE) --no-warn-error -i -- $(SRC_ML)
+
+SRC_RE:=$(shell find infer/src -name '*'.re 2>/dev/null)
+SRC_REI:=$(shell find infer/src -name '*'.rei 2>/dev/null)
+SRC_RE_ML:=$(patsubst %.re,%.ml,$(SRC_RE))
+SRC_REI_MLI:=$(patsubst %.rei,%.mli,$(SRC_REI))
+
+%.ml: %.re
+	refmt --print=binary_reason $< | $(OCAMLFORMAT_EXE) $< --reason-impl -o $@
+
+%.mli: %.rei
+	refmt --print=binary_reason $< | $(OCAMLFORMAT_EXE) $< --reason-intf -o $@
+
+.PHONY: fmt_all
+fmt_all: fmt_all_ml $(SRC_RE_ML) $(SRC_REI_MLI)
+	git add $(SRC_RE_ML) $(SRC_REI_MLI)
+	rm -f $(SRC_RE) $(SRC_REI)
+
 .PHONY: src_build
 src_build:
 	$(QUIET)$(call silent_on_success,Building native Infer,\
@@ -308,7 +332,7 @@ toplevel: clang_plugin
 inferScriptMode_test: test_build
 	$(QUIET)$(call silent_on_success,Testing infer OCaml REPL,\
 	INFER_REPL_BINARY=ocaml TOPLEVEL_DIR=$(BUILD_DIR)/test/infer $(SCRIPT_DIR)/infer_repl \
-	  $(INFER_DIR)/tests/repl/infer_batch_script.ml)
+	  $(INFER_DIR)/tests/repl/infer_batch_script.mltop)
 
 .PHONY: checkCopyright
 checkCopyright:

configure.ac

@@ -18,7 +18,7 @@ AC_INIT([Infer],
         [0.12.0],
         [https://github.com/facebook/infer/issues/])
 
-AC_CONFIG_SRCDIR([infer/src/IR/Sil.re])
+AC_CONFIG_SRCDIR([infer/src/base/IStd.ml])
 
 # WARNING: keep in sync with above
 INFER_MAJOR=0