swagger-ui/flavors/swagger-ui-react/release/create-manifest.js

var jsonMerger = require("json-merger")
var fs = require("fs")
var result = jsonMerger.mergeFiles(["../../../package.json", "template.json"])

if(process.env.REACT_FLAVOR_VERSION_IDENTIFIER) {
  result.version = process.env.REACT_FLAVOR_VERSION_IDENTIFIER
}

process.stdout.write(JSON.stringify(result, null, 2))