You need to use an Environment Variable (Env Var) in multiple builds and change its value during each build. For example, your build needs a counter that is incremented with each build.
1. Use the
envman tool which creates an .envstore file that can be cached.
2. Use the Bitrise.io Cache:Push Step to cache the file and the Bitrise.io Cache:Pull Step to retrieve the file.
Here is an example of adding an Env Var
MY_TEST_ENV_KEY and setting the value to
test value for test key:
envman add --key MY_TEST_ENV_KEY --value 'test value for test key'