Conditions in truffle migration

Question

How can I arrange conditional branching in truffle migration based on the chosen of the network for migration(development, ropsten, main, etc) or based on the Linux environment variables?

Answer 1

The signature of the migration script function is:

module.exports = function (deployer, network, accounts) {
    ...
}

If you want to branch depending on which network you are, you can check the network parameter.

If you wish to use environment variables, you can access these via process.env.<VARIABLE>.