cli-settings-derive

Use a derive macro with annotations on your Command Line Interface settings struct to manage the settings of your application:

• create an instance with default values (provided by annotations)
• read each possible configuration file, if it exists:
  • update the fields that are defined in the configuration file
• parse the command line arguments, and update the relevant fields with the provided argument

By using annotations, each field can be configurable via the configuration file(s) and/or the command line.

cli-settings-derive can be seen as a top layer above

• serde for the file configuration parsing
• clap for the command line parsing

See doc.rs documentation for detailed documentation and an example.

See the crate repository for a complete working example, with:

• clap settings to tune the generated help message (-h)
• field with custom type and user provided function to parse the value from string