fluentci_ext/
nix.rs

1use std::{
2    env,
3    process::{Command, ExitStatus, Stdio},
4    sync::mpsc::Sender,
5};
6use users::get_current_username;
7
8use crate::{exec, Extension};
9use anyhow::Error;
10use fluentci_types::{Output, nix::NixArgs};
11
12#[derive(Default, Clone)]
13pub struct Nix {
14    pub args: NixArgs
15}
16
17impl Nix {
18    pub fn new(args: NixArgs) -> Self {
19        Self { args }
20    }
21
22    pub fn impure(&mut self) -> &mut Self {
23        self.args.impure = true;
24        self
25    }
26
27    pub fn build_args(&self) -> String {
28        let mut args = vec![];
29        if self.args.impure {
30            args.push("--impure".to_string());
31        }
32        args.join(" ")
33    }
34}
35
36impl Extension for Nix {
37    fn exec(
38        &mut self,
39        cmd: &str,
40        tx: Sender<String>,
41        out: Output,
42        last_cmd: bool,
43        work_dir: &str,
44    ) -> Result<ExitStatus, Error> {
45        self.setup()?;
46
47        if cmd.is_empty() {
48            return Ok(ExitStatus::default());
49        }
50
51        let args = self.build_args();
52
53        Command::new("bash")
54            .arg("-c")
55            .arg(&format!("[ -f flake.nix ] || nix flake init {}", args))
56            .current_dir(work_dir)
57            .stdout(Stdio::inherit())
58            .stderr(Stdio::inherit())
59            .spawn()?
60            .wait()?;
61
62        let cmd = format!("nix develop {} -c {}", args, cmd);
63        exec(&cmd, tx, out, last_cmd, work_dir)
64    }
65
66    fn setup(&self) -> Result<(), Error> {
67        let user = match get_current_username() {
68            Some(user) => user.to_string_lossy().to_string(),
69            None => "root".to_string(),
70        };
71
72        env::set_var("USER", user);
73        env::set_var("SHELL", "/bin/bash");
74        
75        let home = match env::var("HOME") {
76            Ok(home) => home,
77            Err(_) => "/root".to_string(),
78        };
79        let nix_path = format!("{}/.nix-profile/bin", home);
80        env::set_var(
81            "PATH",
82            format!(
83                "{}:{}:{}",
84                env::var("PATH")?,
85                "/nix/var/nix/profiles/default/bin",
86                nix_path
87            ),
88        );
89
90        let mut child = Command::new("sh")
91            .arg("-c")
92            .arg("type systemctl > /dev/null 2> /dev/null")
93            .spawn()?;
94        let status = child.wait()?;
95        let init = match status.code() {
96            Some(0) => "",
97            _ => "--init none",
98        };
99
100        let linux = match std::env::consts::OS {
101            "linux" => format!("linux --extra-conf 'sandbox = false' {}", init),
102            _ => "".to_string(),
103        };
104        let mut child = Command::new("bash")
105            .arg("-c")
106            .arg(format!("type nix > /dev/null || curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install {}", linux))
107            
108            .spawn()?;
109        child.wait()?;
110
111        let mut child = Command::new("bash")
112            .arg("-c")
113            .arg(format!("type nix > /dev/null || curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install {} --no-confirm", linux))
114            
115            .spawn()?;
116        child.wait()?;
117        Ok(())
118    }
119
120    fn format_command(&self, cmd: &str) -> String {
121        let args = self.build_args();
122        format!(
123            "[ -f flake.nix ] || nix flake init {} ; nix develop {} -c {}",
124            args, args, cmd
125        )
126    }
127}
fluentci_ext/nix.rs

fluentci_ext/
nix.rs
