Fix fetch for ci but not publish (#2745)

* grep in ci only but not publish

.github/workflows/master.yaml

@@ -14,3 +14,4 @@ jobs:
               env:
                   NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
                   VSCE_TOKEN: ${{ secrets.VSCE_TOKEN }}
+                  PUBLISH: true

packages/quicktype-core/env.sh

@@ -1,8 +1,14 @@
 #!/usr/bin/env bash
 
-if [[ $CI ]]
-then
-	grep -rl '$fetch' src | xargs sed -i '' -e 's/$fetch/$fetch.ci/g'
+if [[ $PUBLISH == true ]]; then
+  echo 'HAS PUBLISH, exit'
+  exit 0
 fi
 
-exit 0
+if [[ $CI ]]; then
+	if [[ "$OSTYPE" == "darwin"* ]]; then
+		grep -rl '$fetch' src | xargs sed -i '' -e 's/$fetch/$fetch.ci/g'
+	else
+		grep -rl '$fetch' src | xargs sed -i -e 's/$fetch/$fetch.ci/g'
+	fi
+fi