tauri-plugin-shellx 2.0.16

Unlocked Tauri Shell Plugin
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

// Copyright 2021 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT
// Source: https://github.com/tauri-apps/fix-path-env-rs/blob/dev/src/lib.rs

/// The error that might happen on a [`fix`] call.
#[derive(Debug, thiserror::Error)]
pub enum Error {
    #[error(transparent)]
    Shell(#[from] std::io::Error),
    #[error("invalid output from shell echo: {0}")]
    InvalidOutput(String),
    #[error("failed to run shell echo: {0}")]
    EchoFailed(String),
}

/// Reads the shell configuration to properly set all given environment variables.
///
/// ## Platform-specific
///
/// - **Windows**: Does nothing as the environment variables are already set.
pub fn fix_vars(vars: &[&str]) -> std::result::Result<(), Error> {
    #[cfg(windows)]
    {
        let _ = vars;
        #[allow(clippy::needless_return)]
        return Ok(());
    }
    #[cfg(not(windows))]
    {
        let default_shell = if cfg!(target_os = "macos") {
            "/bin/zsh"
        } else {
            "/bin/sh"
        };
        let shell = std::env::var("SHELL").unwrap_or_else(|_| default_shell.into());

        let out = std::process::Command::new(shell)
            .arg("-ilc")
            .arg("echo -n \"_SHELL_ENV_DELIMITER_\"; env; echo -n \"_SHELL_ENV_DELIMITER_\"; exit")
            // Disables Oh My Zsh auto-update thing that can block the process.
            .env("DISABLE_AUTO_UPDATE", "true")
            .output()
            .map_err(Error::Shell)?;

        if out.status.success() {
            let stdout = String::from_utf8_lossy(&out.stdout).into_owned();
            let env = stdout
                .split("_SHELL_ENV_DELIMITER_")
                .nth(1)
                .ok_or_else(|| Error::InvalidOutput(stdout.clone()))?;
            for line in String::from_utf8_lossy(&strip_ansi_escapes::strip(env))
                .split('\n')
                .filter(|l| !l.is_empty())
            {
                let mut s = line.splitn(2, '=');
                if let (Some(var), Some(value)) = (s.next(), s.next()) {
                    if vars.is_empty() || vars.contains(&var) {
                        std::env::set_var(var, value);
                    }
                }
            }
            Ok(())
        } else {
            Err(Error::EchoFailed(
                String::from_utf8_lossy(&out.stderr).into_owned(),
            ))
        }
    }
}

/// Reads the shell configuration to properly set the PATH environment variable.
///
/// ## Platform-specific
///
/// - **Windows**: Does nothing as the environment variables are already set.
pub fn fix() -> std::result::Result<(), Error> {
    fix_vars(&["PATH"])
}