Files
pacdef_rust/src/backend/rust.rs
T

96 lines
2.2 KiB
Rust

use std::{collections::HashSet, process::Command};
use super::{Backend, Switches, Text};
use crate::{impl_backend_constants, Group, Package};
pub struct Rust {
pub packages: HashSet<Package>,
}
const BINARY: Text = "cargo";
const SECTION: Text = "rust";
const SWITCHES_INSTALL: Switches = &["install"];
const SWITCHES_REMOVE: Switches = &["uninstall"];
impl Backend for Rust {
impl_backend_constants!();
fn get_all_installed_packages(&self) -> HashSet<Package> {
extract_packages_names(&run_cargo_install_list())
.filter_map(Package::try_from)
.collect()
}
fn get_explicitly_installed_packages(&self) -> HashSet<Package> {
self.get_all_installed_packages()
}
}
fn run_cargo_install_list() -> String {
let stdout = Command::new("cargo")
.args(["install", "--list"])
.output()
.unwrap()
.stdout;
String::from_utf8(stdout).unwrap()
}
fn extract_packages_names(output: &str) -> impl Iterator<Item = String> + '_ {
output
.lines()
.filter(|line| !line.starts_with(char::is_whitespace))
.map(|line| line.split_whitespace().next().unwrap().to_owned())
}
impl Rust {
pub fn new() -> Self {
Self {
packages: HashSet::new(),
}
}
}
impl Default for Rust {
fn default() -> Self {
Self::new()
}
}
#[cfg(test)]
mod tests {
use super::extract_packages_names;
#[test]
fn test_extract_packages() {
const OUTPUT: &str = "cargo-audit v0.17.4:
cargo-audit
cargo-cache v0.8.3:
cargo-cache
cargo-criterion v1.1.0:
cargo-criterion
cargo-update v11.1.1:
cargo-install-update
cargo-install-update-config
flamegraph v0.6.2:
cargo-flamegraph
flamegraph
topgrade v10.1.2 (/home/ratajc72/tmp/topgrade):
topgrade
wthrr v0.6.1:
wthrr";
let extracted: Vec<String> = extract_packages_names(OUTPUT).collect();
assert_eq!(
&extracted,
&[
"cargo-audit",
"cargo-cache",
"cargo-criterion",
"cargo-update",
"flamegraph",
"topgrade",
"wthrr"
]
);
}
}