cli

Documentation

Overview

Package cli holds shared helpers for command-line handling.

Index

• func ApplyEnvDefaults(fs *flag.FlagSet, mapping map[string]string) error

Functions

func ApplyEnvDefaults

func ApplyEnvDefaults(fs *flag.FlagSet, mapping map[string]string) error

ApplyEnvDefaults fills unset flags from environment variables. Precedence: explicit flag > environment variable > flag default. mapping is flagName -> ENV_VAR. Values are run through the flag's own parser, so a bad env value fails the same way a bad flag does.