apt_cmd/
dpkg.rs

1// Copyright 2021-2022 System76 <info@system76.com>
2// SPDX-License-Identifier: MPL-2.0
3
4use as_result::*;
5use async_stream::stream;
6use futures::stream::Stream;
7use std::{io, pin::Pin};
8use tokio::io::{AsyncBufReadExt, BufReader};
9use tokio::process::{Child, ChildStdout, Command};
10
11#[derive(AsMut, Deref, DerefMut)]
12#[as_mut(forward)]
13pub struct Dpkg(Command);
14
15impl Dpkg {
16    #[allow(clippy::new_without_default)]
17    pub fn new() -> Self {
18        let mut cmd = Command::new("dpkg");
19        cmd.env("LANG", "C");
20        Self(cmd)
21    }
22
23    pub fn force_confdef(mut self) -> Self {
24        self.arg("--force-confdef");
25        self
26    }
27
28    pub fn force_confold(mut self) -> Self {
29        self.arg("--force-confold");
30        self
31    }
32
33    pub fn configure_all(mut self) -> Self {
34        self.args(["--configure", "-a"]);
35        self
36    }
37
38    pub async fn status(mut self) -> io::Result<()> {
39        self.0.status().await?.into_result()
40    }
41}
42
43pub type InstalledEvent = Pin<Box<dyn Stream<Item = String>>>;
44
45#[derive(AsMut, Deref, DerefMut)]
46#[as_mut(forward)]
47pub struct DpkgQuery(Command);
48
49impl DpkgQuery {
50    #[allow(clippy::new_without_default)]
51    pub fn new() -> Self {
52        let mut cmd = Command::new("dpkg-query");
53        cmd.env("LANG", "C");
54        Self(cmd)
55    }
56
57    pub async fn show_installed<I, S>(mut self, packages: I) -> io::Result<(Child, InstalledEvent)>
58    where
59        I: IntoIterator<Item = S>,
60        S: AsRef<std::ffi::OsStr>,
61    {
62        self.args(["--show", "--showformat=${Package} ${db:Status-Status}\n"]);
63        self.args(packages);
64
65        let (child, stdout) = self.spawn_with_stdout().await?;
66
67        let mut stdout = BufReader::new(stdout).lines();
68
69        let stream = stream! {
70            while let Ok(Some(line)) = stdout.next_line().await {
71                let mut fields = line.split(' ');
72                let package = fields.next().unwrap();
73                if fields.next().unwrap() == "installed" {
74                    yield package.into();
75                }
76            }
77        };
78
79        Ok((child, Box::pin(stream)))
80    }
81
82    pub async fn status(mut self) -> io::Result<()> {
83        self.0.status().await?.into_result()
84    }
85
86    pub async fn spawn_with_stdout(self) -> io::Result<(Child, ChildStdout)> {
87        crate::utils::spawn_with_stdout(self.0).await
88    }
89}
apt_cmd/dpkg.rs

apt_cmd/
dpkg.rs
