hash changes on different machines?

[malliapi]

our builds are on circleci and generate sourcemaps that then upload to rollbar.com, the issue is that when heroku rebuilds the package, we get a different hash! therefore they cant be matched. an obvious workaround i sto upload the sourcemapss from heroku or not rebuild there, but i'm wondering why this is the case?

[mkonars]

This plugin sorts the files based on their paths, then joins them and then generates the hash. So if the path is different from build to build the hashes will be different. At least this was the case in my webpack + angular app build.