run-kit 0.7.1

Universal multi-language runner and smart REPL
Documentation 
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

use std::path::{Path, PathBuf};

use serde::Deserialize;

/// Project-level configuration loaded from `run.toml` or `.runrc`.
#[derive(Debug, Default, Deserialize)]
#[serde(default)]
pub struct RunConfig {
    /// Default language when none is specified.
    pub language: Option<String>,
    /// Execution timeout in seconds.
    pub timeout: Option<u64>,
    /// Always show execution timing.
    pub timing: Option<bool>,
    /// Default benchmark iterations.
    pub bench_iterations: Option<u32>,
}

impl RunConfig {
    /// Search for a config file in the current directory and ancestors.
    /// Checks `run.toml`, then `.runrc` (TOML format).
    pub fn discover() -> Self {
        let cwd = std::env::current_dir().ok();
        let cwd = match cwd {
            Some(ref p) => p.as_path(),
            None => return Self::default(),
        };

        for dir in cwd.ancestors() {
            for name in &["run.toml", ".runrc"] {
                let candidate = dir.join(name);
                if candidate.is_file()
                    && let Ok(config) = Self::load(&candidate)
                {
                    return config;
                }
            }
        }

        Self::default()
    }

    pub fn load(path: &Path) -> Result<Self, String> {
        let content = std::fs::read_to_string(path)
            .map_err(|e| format!("failed to read {}: {e}", path.display()))?;
        toml::from_str(&content).map_err(|e| format!("invalid config in {}: {e}", path.display()))
    }

    pub fn apply_env(&self) {
        if let Some(secs) = self.timeout
            && std::env::var("RUN_TIMEOUT_SECS").is_err()
        {
            // SAFETY: called once at startup before any threads are spawned.
            unsafe {
                std::env::set_var("RUN_TIMEOUT_SECS", secs.to_string());
            }
        }
        if let Some(true) = self.timing
            && std::env::var("RUN_TIMING").is_err()
        {
            // SAFETY: called once at startup before any threads are spawned.
            unsafe {
                std::env::set_var("RUN_TIMING", "1");
            }
        }
    }

    pub fn find_config_path() -> Option<PathBuf> {
        let cwd = std::env::current_dir().ok()?;
        for dir in cwd.ancestors() {
            for name in &["run.toml", ".runrc"] {
                let candidate = dir.join(name);
                if candidate.is_file() {
                    return Some(candidate);
                }
            }
        }
        None
    }
}