starship/src/print.rs

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Rust
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use clap::ArgMatches;
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use rayon::prelude::*;
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use std::io::{self, Write};
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use crate::config::Config;
use crate::context::Context;
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use crate::module::Module;
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use crate::modules;
const PROMPT_ORDER: &[&str] = &[
"battery",
"username",
"directory",
"git_branch",
"git_status",
"package",
"nodejs",
"rust",
"python",
"go",
"line_break",
"character",
];
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pub fn prompt(args: ArgMatches) {
let context = Context::new(args);
let config = &context.config;
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let stdout = io::stdout();
let mut handle = stdout.lock();
// Write a new line before the prompt
if config.get_as_bool("add_newline") != Some(false) {
writeln!(handle).unwrap();
}
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let modules = PROMPT_ORDER
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.par_iter()
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.map(|module| modules::handle(module, &context)) // Compute modules
.flatten()
.collect::<Vec<Module>>(); // Remove segments set to `None`
let mut printable = modules.iter();
// Print the first module without its prefix
if let Some(first_module) = printable.next() {
let module_without_prefix = first_module.to_string_without_prefix();
write!(handle, "{}", module_without_prefix).unwrap()
}
// Print all remaining modules
printable.for_each(|module| write!(handle, "{}", module).unwrap());
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}
pub fn module(module_name: &str, args: ArgMatches) {
let context = Context::new(args);
// If the module returns `None`, print an empty string
let module = modules::handle(module_name, &context)
.map(|m| m.to_string())
.unwrap_or_default();
print!("{}", module);
}