logic / cmdr

Subcommands and environment variables for Go command-line interfaces

cmdr - commands, positional arguments, and variables for Go programs

cmdr wraps the Go standard library flag package to make it easy to add subcommands, positional arguments, and environment variable triggers to command-line programs.

Documentation | Examples | License

cmdr is unable, and interfaces are likely to change without notice. You might be better served with another library at this point if interface stability is important to you.

cmdr's Issues

Variables should populate more like FlagSet

We should be able to construct environment variable triggers similarly to how we construct FlagSets: instead of calling a trigger function, we assign a (type-checked) value to a variable, and the caller can process them after calling Parse(). Ergonomically, this will be more familiar, and should mean less boilerplate.

Constructing an EnvSet like a FlagSet could also allow us to trivially "namespace" related variables under a common prefix (and possibly nest them?).

Add examples

Need to add a few complete examples.