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|
use crate::compose::Environment;
use crate::poem::Verse;
use crate::poem::{read::Readable, recite::Reciteable, Poem};
use std::fs;
/// source
///
/// The builtin `source` command. Used to change the shell's global environment
/// state via a `.sh` or `.dwvsh` file.
///
/// # Shell Examples
/// ```sh
/// source ~/.dwvshrc
/// ```
pub fn incant(verse: &Verse, out: &mut String, env: &mut Environment) -> i32 {
let files = match verse.clause() {
Some(clause) => clause,
None => {
eprintln!("source: not enough arguments");
return 1;
}
};
for file in files {
let poetry = match fs::read_to_string(&file) {
Ok(poetry) => poetry,
Err(e) => {
eprintln!(
"source: could not load {}: {}",
file,
e.to_string().to_lowercase()
);
return 127;
}
};
let poem = match Poem::read(poetry, env) {
Ok(poem) => poem,
Err(e) => {
eprintln!("dwvsh: {}", e.to_string().to_lowercase());
continue;
}
};
let stdout = if verse.couplet { Some(true) } else { None };
*out = match poem.recite(env, stdout) {
Ok(out) => out,
Err(e) => {
eprintln!("dwvsh: {}", e.to_string().to_lowercase());
continue;
}
};
}
0
}
|
