From 9cb6902f80422d3c193c5949b036f9adbe29fdbe Mon Sep 17 00:00:00 2001
From: Vladimir Agafonkin <agafonkin@gmail.com>
Date: Thu, 26 Jul 2018 15:51:09 +0300
Subject: [PATCH] produce nicer style formatting

---
 src/style-spec/format.js    | 10 ++++------
 src/style-spec/package.json |  1 +
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/src/style-spec/format.js b/src/style-spec/format.js
index 3a9b27e776c..5f73534fbc4 100644
--- a/src/style-spec/format.js
+++ b/src/style-spec/format.js
@@ -1,6 +1,7 @@
 
 import reference from './reference/latest.js';
 import sortObject from 'sort-object';
+import stringifyPretty from 'json-stringify-pretty-compact';
 
 function sameOrderAs(reference) {
     const keyOrder = {};
@@ -38,17 +39,14 @@ function sameOrderAs(reference) {
  * fs.writeFileSync('./dest.json', format(style));
  * fs.writeFileSync('./dest.min.json', format(style, 0));
  */
-function format(style, space) {
-    if (space === undefined) space = 2;
+function format(style, space = 2) {
     style = sortObject(style, sameOrderAs(reference.$root));
 
     if (style.layers) {
-        style.layers = style.layers.map((layer) => {
-            return sortObject(layer, sameOrderAs(reference.layer));
-        });
+        style.layers = style.layers.map((layer) => sortObject(layer, sameOrderAs(reference.layer)));
     }
 
-    return JSON.stringify(style, null, space);
+    return stringifyPretty(style, {indent: space});
 }
 
 export default format;
diff --git a/src/style-spec/package.json b/src/style-spec/package.json
index c2e950fc568..c4e32b69a1d 100644
--- a/src/style-spec/package.json
+++ b/src/style-spec/package.json
@@ -30,6 +30,7 @@
     "@mapbox/jsonlint-lines-primitives": "~2.0.2",
     "@mapbox/unitbezier": "^0.0.0",
     "csscolorparser": "~1.0.2",
+    "json-stringify-pretty-compact": "^1.2.0",
     "minimist": "0.0.8",
     "rw": "^1.3.3",
     "sort-object": "^0.3.2"