Use replace to set production

core/src/main.js

@@ -8,6 +8,7 @@
  * LICENSE file in the root directory of this source tree.
 */
 
+/*PRODUCTION*/
 const TESTS = typeof PRODUCTION === 'undefined';
 const TEST_ARGS = () => {
     const _basePath = path.resolve(__dirname, '..', '..');

gulpfile.babel.js

@@ -4,6 +4,7 @@ import del from 'del';
 import copy from 'gulp-copy';
 import rename from 'gulp-rename';
 import inject from 'gulp-inject-string';
+import replace from 'gulp-replace';
 import copydeps from './scripts/copydeps';
 import file from 'gulp-file';
 import editjson from 'gulp-json-editor';
@@ -17,7 +18,7 @@ import editorpkg from './editor/package';
 gulp.task('core-main', function () {
     return pump([
         gulp.src('core/dist/main.js'),
-        inject.after(`'use strict';\n`, 'const PRODUCTION = true;\n'),
+        replace('/*PRODUCTION*/', 'const PRODUCTION = true;'),
         rename(`core.${corepkg.version}.js`),
         gulp.dest('release/core')
     ]);

package-lock.json

@@ -1785,6 +1785,12 @@
         "underscore": "~1.4.4"
       }
     },
+    "binaryextensions": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/binaryextensions/-/binaryextensions-2.1.2.tgz",
+      "integrity": "sha512-xVNN69YGDghOqCCtA6FI7avYrr02mTJjOgB0/f1VPD3pJC8QEvjTKWc4epDx8AqxxA75NI0QpVM2gPJXUbE4Tg==",
+      "dev": true
+    },
     "bl": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
@@ -3046,6 +3052,12 @@
         "safer-buffer": "^2.1.0"
       }
     },
+    "editions": {
+      "version": "1.3.4",
+      "resolved": "https://registry.npmjs.org/editions/-/editions-1.3.4.tgz",
+      "integrity": "sha512-gzao+mxnYDzIysXKMQi/+M1mjy/rjestjg6OPoYTtI+3Izp23oiGZitsl9lPDPiTGXbcSIk1iJWhliSaglxnUg==",
+      "dev": true
+    },
     "editorconfig": {
       "version": "0.15.2",
       "resolved": "https://registry.npmjs.org/editorconfig/-/editorconfig-0.15.2.tgz",
@@ -5387,6 +5399,17 @@
       "integrity": "sha512-swzbIGb/arEoFK89tPY58vg3Ok1bw+d35PfUNwWqdo7KM4jkmuGA78JiDNqR+JeZFaeeHnRg9N7aihX3YPmsyg==",
       "dev": true
     },
+    "gulp-replace": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/gulp-replace/-/gulp-replace-1.0.0.tgz",
+      "integrity": "sha512-lgdmrFSI1SdhNMXZQbrC75MOl1UjYWlOWNbNRnz+F/KHmgxt3l6XstBoAYIdadwETFyG/6i+vWUSCawdC3pqOw==",
+      "dev": true,
+      "requires": {
+        "istextorbinary": "2.2.1",
+        "readable-stream": "^2.0.1",
+        "replacestream": "^4.0.0"
+      }
+    },
     "gulp-watch": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/gulp-watch/-/gulp-watch-5.0.1.tgz",
@@ -6440,6 +6463,17 @@
       "resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
       "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
     },
+    "istextorbinary": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/istextorbinary/-/istextorbinary-2.2.1.tgz",
+      "integrity": "sha512-TS+hoFl8Z5FAFMK38nhBkdLt44CclNRgDHWeMgsV8ko3nDlr/9UI2Sf839sW7enijf8oKsZYXRvM8g0it9Zmcw==",
+      "dev": true,
+      "requires": {
+        "binaryextensions": "2",
+        "editions": "^1.3.3",
+        "textextensions": "2"
+      }
+    },
     "jquery": {
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.3.1.tgz",
@@ -8999,6 +9033,17 @@
         "remove-trailing-separator": "^1.1.0"
       }
     },
+    "replacestream": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/replacestream/-/replacestream-4.0.3.tgz",
+      "integrity": "sha512-AC0FiLS352pBBiZhd4VXB1Ab/lh0lEgpP+GGvZqbQh8a5cmXVoTe5EX/YeTFArnp4SRGTHh1qCHu9lGs1qG8sA==",
+      "dev": true,
+      "requires": {
+        "escape-string-regexp": "^1.0.3",
+        "object-assign": "^4.0.1",
+        "readable-stream": "^2.0.2"
+      }
+    },
     "request": {
       "version": "2.88.0",
       "resolved": "https://registry.npmjs.org/request/-/request-2.88.0.tgz",
@@ -10435,6 +10480,12 @@
       "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
       "dev": true
     },
+    "textextensions": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/textextensions/-/textextensions-2.4.0.tgz",
+      "integrity": "sha512-qftQXnX1DzpSV8EddtHIT0eDDEiBF8ywhFYR2lI9xrGtxqKN+CvLXhACeCIGbCpQfxxERbrkZEFb8cZcDKbVZA==",
+      "dev": true
+    },
     "throttleit": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/throttleit/-/throttleit-0.0.2.tgz",

package.json

@@ -54,6 +54,7 @@
     "gulp-inject-string": "^1.1.2",
     "gulp-json-editor": "^2.5.1",
     "gulp-rename": "^1.4.0",
+    "gulp-replace": "^1.0.0",
     "gulp-watch": "^5.0.1",
     "hash-files": "^1.1.1",
     "html-webpack-plugin": "^3.2.0",