cowsay, but with (ᗜˬᗜ)/\(ᗜ˰ᗜ) soft friends
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use std::fs;
use std::path::Path;
use clap::{Arg, App};
/// Indicator of where the message should be in fumofile
const MESSAGE_INDICATOR: &str = "!message";
/// Fumofile name of the default fumo
const FUMO_DEFAULT: &str = "fumo.fumo";
/// Default directory where fumofiles are placed
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const DEFAULT_FUMOFILES_DIR: &str = "/usr/share/fumosay/fumofiles/";
/// Returns a resulting string with `MESSAGE_INDICATOR` replaced with given
/// `message`. If `MESSAGE_INDICATOR` is not present in fumofile - the
/// `message` will be added on the new line at the end of the fumofile.
fn process_message(fumofile_contents: &mut String, message: &str) -> String {
if fumofile_contents.contains(MESSAGE_INDICATOR) {
return fumofile_contents.replace(MESSAGE_INDICATOR,message);
}
return format!("{}\n{}", fumofile_contents, message);
}
fn main() {
// get command line arguments
let matches = App::new("fumosay")
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.version("0.4.0")
.author("Unbewohnte | Nikolay Kasyanov <https://github.com/Unbewohnte>")
.about("cowsay, but with soft friends")
.arg(
Arg::with_name("fumo")
.short("f")
.long("fumo")
.value_name("fumofile")
.help("choose another fumofumo to print")
.takes_value(true)
.required(false)
.default_value(FUMO_DEFAULT)
)
.arg(
Arg::with_name("fumofiles_directory")
.short("d")
.long("fumofiles_directory")
.value_name("fumofiles_directory_path")
.help("look for fumofiles in given directory instead")
.takes_value(true)
.required(false)
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.default_value(DEFAULT_FUMOFILES_DIR)
)
.arg(
Arg::with_name("list_fumos")
.short("l")
.long("list_fumos")
.help("lists all fumofiles in the default directory instead")
.takes_value(false)
.required(false)
)
.arg(
Arg::with_name("message")
.short("m")
.long("message")
.help("set a message to print")
.takes_value(true)
.index(1)
.multiple(true)
).get_matches();
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// check for list_fumos flag.
if matches.is_present("list_fumos") {
// list fumofiles and exit
let fumofiles = fs::read_dir(DEFAULT_FUMOFILES_DIR).expect("Could not read default fumofiles directory");
for entry in fumofiles {
let file = entry.unwrap();
let filename = file.file_name();
print!("{:?}\n", filename);
}
std::process::exit(0);
}
// process fumofiles directory
// directory with all fumofiles
let new_fumofiles_dir = matches.value_of("fumofiles_directory").unwrap();
// name of the fumofile to work with
let fumofile_name = matches.value_of("fumo").unwrap();
// the whole path to the selected fumo
let fumofile_path = Path::new(&new_fumofiles_dir).join(fumofile_name);
// read fumofile
let mut fumofile_contents: String = fs::read_to_string(fumofile_path).expect("Could not find a fumofile!");
// process the message
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let message_values = matches.values_of("message").expect("No message provided");
let message_vec: Vec<&str> = message_values.collect();
let joined_message = message_vec.join(" ");
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// parse the file, insert fiven message and get the resulting string
let fumosay: String = process_message(&mut fumofile_contents, joined_message.as_str());
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println!("{}", fumosay);
}