[hack] Add structured json to hh --json

Summary: Referred to diffusion/FBS/browse/master/fbcode/hphp/hack/src/server/serverArgs.ml;ef20a30fdb088ec460ec4dfb744d1f9d2af89da6$100-107 as the basis for this change. Reviewed By: 2BitSalute Differential Revision: D15566968 fbshipit-source-id: 728c780be9deec24d01bea2145f570f6ce7a7819
facebook · May 31, 2019 · e9c2e9e · e9c2e9e
1 parent 24e1075
commit e9c2e9e
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diff --git a/hack/utils/build_id.ml b/hack/utils/build_id.ml
@@ -40,3 +40,11 @@ let is_build_optimized =
  * v5 (hvvm 3.23, 17 Nov 2017) - 'hh_client lsp' stable
  *)
 let build_api_version = 5
+
+let build_version_json =
+  let open Hh_json in
+  JSON_Object [
+    "commit", JSON_String build_revision;
+    "commit_time", int_ build_commit_time;
+    "api_version", int_ build_api_version;
+  ]
diff --git a/hack/utils/build_id.mli b/hack/utils/build_id.mli
@@ -27,3 +27,4 @@ val build_minor_version : int
 val build_api_version : int
 val build_mode : string
 val is_build_optimized : bool
+val build_version_json : Hh_json.json