fui

Add CLI & form interface to your program.

Basic example

cargo.toml

[dependencies]
fui = "2.1"

Using with clap (experimental)

extern crate clap;
extern crate fui;

use clap::{App, Arg};
use fui::Fui;
use std::env;

// regular clap code
let app = App::new("some-app").arg(
    Arg::with_name("some-switch")
        .long("arg-long")
        .help("arg-help"),
);


// extra fui code
let mut _arg_vec: Vec<String> = env::args().collect();
if _arg_vec.len() <= 1 {
    _arg_vec = Fui::from(&app).get_cli_input();
}


// regular clap code
let matches = app.get_matches_from(_arg_vec);

Using without clap

// Example showing imagined CLI app. with two actions

#[macro_use]
extern crate clap;
extern crate fui;

use fui::{Fui, Value};
use fui::form::FormView;
use fui::fields::Text;

fn hdlr(v: Value) {
    println!("user input (from fn) {:?}", v);
}

fn main() {
    Fui::new(crate_name!())
        .action(
            "action1",
            "help for action1",
            FormView::new().field(Text::new("action1-data").help("help for action1 data")),
            |v| {
                println!("user input (from closure) {:?}", v);
            },
        )
        .action(
            "action2",
            "help for action2",
            FormView::new().field(Text::new("action2-data").help("help for action2 data")),
            hdlr,
        )
        .version(crate_version!())
        .about(crate_description!())
        .author(crate_authors!())
        .run();
}

This will make the program automatically working in 2 modes:

1. Ready for parsing CLI arguments, like here:

   $ ./app_basic -h
   app_basic 1.0.0
   xliiv <[email protected]>
   An Example program which has CLI & form interface (TUI)
   
   USAGE:
       app_basic [SUBCOMMAND]
   
   FLAGS:
       -h, --help       Prints help information
       -V, --version    Prints version information
   
   SUBCOMMANDS:
       action1    help for action1
       action2    help for action2
       help       Prints this message or the help of the given subcommand(s)
   

2. Ready for getting user input from easy and discoverable TUI interface, like image below:

More examples

Here

Screens

Clap support

Implemented features

• switch arguments
• positional arguments
• option arguments
• global arguments
• subcommands (single level)

To be implemented

• conflicts_with
• requires
• validators
• min/max/exact number of values for
  • positional args
  • options args
• groups
• conditional defaults
• custom delimeter

TODO

• find a solution for long help messages
• ctrl+enter submits (#151)
• handle unwraps

Ideas

• .validator(OneOf || Regex::new("v\d+\.\d+\.\d+")).unwrap()?
• support user's history?
• checkboxes: automatic toggle on char(+alt)?
• replace views::Autocomplete & views::Multiselect with a new implementation of Autocomplete

Release Steps

# create a new branch with updated files, similarly to the following
# https://github.com/xliiv/fui/commit/b44577541ee9b965b0b1e67169cac46222317901
git checkout -b vx.x.x  # where vx.x.x is e.g. v1.0.0
git commit -m "Bump version to vx.x.x"
# login as here https://doc.rust-lang.org/cargo/reference/publishing.html
cargo login
# check if branch is correct
cargo publish --dry-run
# if OK, then publish
cargo publish
# push the branch
git push origin vx.x.x
# merge the vx.x.x branch created a few steps before
# tag branch
git tag -a "vx.x.x" -m "Tag vx.x.x"