aboutsummaryrefslogtreecommitdiff
path: root/src/utils/push.rs
blob: d52fbbe61a2518ad995148509b3b2ad271323921 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
// SPDX-FileCopyrightText: 2020 Serokell <https://serokell.io/>
//
// SPDX-License-Identifier: MPL-2.0

use std::process::Stdio;
use tokio::process::Command;

use thiserror::Error;

#[derive(Error, Debug)]
pub enum PushProfileError {
    #[error("Failed to calculate activate bin path from deploy bin path: {0}")]
    DeployPathToActivatePathError(#[from] super::DeployPathToActivatePathError),
    #[error("Failed to run Nix build command: {0}")]
    BuildError(std::io::Error),
    #[error("Nix build command resulted in a bad exit code: {0:?}")]
    BuildExitError(Option<i32>),
    #[error("Failed to run Nix sign command: {0}")]
    SignError(std::io::Error),
    #[error("Nix sign command resulted in a bad exit code: {0:?}")]
    SignExitError(Option<i32>),
    #[error("Failed to run Nix copy command: {0}")]
    CopyError(std::io::Error),
    #[error("Nix copy command resulted in a bad exit code: {0:?}")]
    CopyExitError(Option<i32>),
}

pub async fn push_profile(
    supports_flakes: bool,
    check_sigs: bool,
    repo: &str,
    deploy_data: &super::DeployData<'_>,
    deploy_defs: &super::DeployDefs<'_>,
    keep_result: bool,
    result_path: Option<&str>,
) -> Result<(), PushProfileError> {
    info!(
        "Building profile `{}` for node `{}`",
        deploy_data.profile_name, deploy_data.node_name
    );

    let mut build_c = if supports_flakes {
        Command::new("nix")
    } else {
        Command::new("nix-build")
    };

    let mut build_command = if supports_flakes {
        build_c.arg("build").arg("--no-link").arg(format!(
            "{}#deploy.nodes.{}.profiles.{}.path",
            repo, deploy_data.node_name, deploy_data.profile_name
        ))
    } else {
        build_c
            .arg(&repo)
            .arg("--no-out-link")
            .arg("-A")
            .arg(format!(
                "deploy.nodes.{}.profiles.{}.path",
                deploy_data.node_name, deploy_data.profile_name
            ))
    };

    build_command = match (keep_result, supports_flakes) {
        (true, _) => {
            let result_path = result_path.unwrap_or("./.deploy-gc");

            build_command.arg("--out-link").arg(format!(
                "{}/{}/{}",
                result_path, deploy_data.node_name, deploy_data.profile_name
            ))
        }
        (false, false) => build_command.arg("--no-out-link"),
        (false, true) => build_command.arg("--no-link"),
    };

    let build_exit_status = build_command
        // Logging should be in stderr, this just stops the store path from printing for no reason
        .stdout(Stdio::null())
        .status()
        .await
        .map_err(PushProfileError::BuildError)?;

    match build_exit_status.code() {
        Some(0) => (),
        a => return Err(PushProfileError::BuildExitError(a)),
    };

    if let Ok(local_key) = std::env::var("LOCAL_KEY") {
        info!(
            "Signing key present! Signing profile `{}` for node `{}`",
            deploy_data.profile_name, deploy_data.node_name
        );

        let sign_exit_status = Command::new("nix")
            .arg("sign-paths")
            .arg("-r")
            .arg("-k")
            .arg(local_key)
            .arg(&deploy_data.profile.profile_settings.path)
            .arg(&super::deploy_path_to_activate_path_str(
                &deploy_defs.current_exe,
            )?)
            .status()
            .await
            .map_err(PushProfileError::SignError)?;

        match sign_exit_status.code() {
            Some(0) => (),
            a => return Err(PushProfileError::SignExitError(a)),
        };
    }

    debug!(
        "Copying profile `{}` to node `{}`",
        deploy_data.profile_name, deploy_data.node_name
    );

    let mut copy_command_ = Command::new("nix");
    let mut copy_command = copy_command_.arg("copy");

    if let Some(true) = deploy_data.merged_settings.fast_connection {
        copy_command = copy_command.arg("--substitute-on-destination");
    }

    if !check_sigs {
        copy_command = copy_command.arg("--no-check-sigs");
    }

    let ssh_opts_str = deploy_data
        .merged_settings
        .ssh_opts
        // This should provide some extra safety, but it also breaks for some reason, oh well
        // .iter()
        // .map(|x| format!("'{}'", x))
        // .collect::<Vec<String>>()
        .join(" ");

    let hostname = match deploy_data.cmd_overrides.hostname {
        Some(ref x) => x,
        None => &deploy_data.node.node_settings.hostname,
    };

    let copy_exit_status = copy_command
        .arg("--to")
        .arg(format!("ssh://{}@{}", deploy_defs.ssh_user, hostname))
        .arg(&deploy_data.profile.profile_settings.path)
        .arg(&super::deploy_path_to_activate_path_str(
            &deploy_defs.current_exe,
        )?)
        .env("NIX_SSHOPTS", ssh_opts_str)
        .status()
        .await
        .map_err(PushProfileError::CopyError)?;

    match copy_exit_status.code() {
        Some(0) => (),
        a => return Err(PushProfileError::CopyExitError(a)),
    };

    Ok(())
}