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#[cfg(test)]
#[path = "./rsscript_test.rs"]
mod rsscript_test;
use command;
use installer;
use rand::distributions::Alphanumeric;
use rand::{thread_rng, Rng};
use std::fs::{create_dir_all, remove_file, File};
use std::io::prelude::*;
use std::{env, iter};
fn install_crate() {
installer::install_crate("script", "cargo-script", &None, true);
}
fn create_rust_file(rust_script: &Vec<String>) -> String {
let name = env!("CARGO_PKG_NAME");
let mut rng = thread_rng();
let file_name: String = iter::repeat(())
.map(|()| rng.sample(Alphanumeric))
.take(10)
.collect();
let mut file_path = env::temp_dir();
file_path.push(name);
match create_dir_all(&file_path) {
Ok(_) => debug!("Created temporary directory."),
Err(error) => debug!(
"Unable to create temporary directory: {} {:#?}",
&file_path.to_str().unwrap_or("???"),
error
),
};
file_path.push(file_name);
file_path.set_extension("rs");
let file_path_str = &file_path.to_str().unwrap_or("???");
debug!("Creating temporary rust file: {}", &file_path_str);
let mut file = match File::create(&file_path) {
Err(error) => {
error!(
"Unable to create rust file: {} {:#?}",
&file_path_str, &error
);
panic!("Unable to create rust file, error: {}", error);
}
Ok(file) => file,
};
let text = rust_script.join("\n");
match file.write_all(text.as_bytes()) {
Err(error) => {
error!(
"Unable to write to rust file: {} {:#?}",
&file_path_str, &error
);
panic!("Unable to write to rust file, error: {}", error);
}
Ok(_) => debug!("Written rust file text:\n{}", &text),
}
file_path_str.to_string()
}
fn run_file(file: &str) -> bool {
let exit_code = command::run_command(
"cargo",
&Some(vec!["script".to_string(), file.to_string()]),
false,
);
debug!("Executed rust code, exit code: {}", exit_code);
exit_code == 0
}
pub(crate) fn execute(rust_script: &Vec<String>) {
install_crate();
let file = create_rust_file(rust_script);
let valid = run_file(&file);
match remove_file(&file) {
Ok(_) => debug!("Temporary file deleted: {}", &file),
Err(error) => debug!("Unable to delete temporary file: {} {:#?}", &file, error),
};
if !valid {
error!("Unable to execute rust code.");
}
}