starship/src/print.rs

77 lines
2.1 KiB
Rust
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use clap::ArgMatches;
use rayon::prelude::*;
use std::fmt::Write as FmtWrite;
use std::io::{self, Write};
use crate::context::Context;
use crate::module::Module;
use crate::module::ALL_MODULES;
use crate::modules;
pub fn prompt(args: ArgMatches) {
let context = Context::new(args);
let stdout = io::stdout();
let mut handle = stdout.lock();
write!(handle, "{}", get_prompt(context)).unwrap();
}
pub fn get_prompt(context: Context) -> String {
let config = context.config.get_root_config();
let mut buf = String::new();
// Write a new line before the prompt
if config.add_newline {
writeln!(buf).unwrap();
}
let mut prompt_order: Vec<&str> = Vec::new();
// Write out a custom prompt order
for module in config.prompt_order {
if ALL_MODULES.contains(&module) {
prompt_order.push(module);
} else {
log::debug!(
"Expected prompt_order to contain value from {:?}. Instead received {}",
ALL_MODULES,
module,
);
}
}
let modules = &prompt_order
.par_iter()
.filter(|module| !context.is_module_disabled_in_config(module))
.map(|module| modules::handle(module, &context)) // Compute modules
.flatten()
.collect::<Vec<Module>>(); // Remove segments set to `None`
let mut print_without_prefix = true;
let printable = modules.iter();
for module in printable {
// Skip printing the prefix of a module after the line_break
if print_without_prefix {
let module_without_prefix = module.to_string_without_prefix();
write!(buf, "{}", module_without_prefix).unwrap()
} else {
write!(buf, "{}", module).unwrap();
}
print_without_prefix = module.get_name() == "line_break"
}
buf
}
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);
}