malvin 0.2.4

Non-interactive research and coding agent
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

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

use crate::MALVIN_TEST_ALLOW_HOME_CONFIG_MUTATION;

pub use crate::test_poll::{
    test_post_teardown_poll_interval, test_post_teardown_wait_budget, test_wait_until_async,
};

fn stable_test_cwd() -> PathBuf {
    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
}

#[must_use]
pub fn save_cwd() -> PathBuf {
    std::env::current_dir().unwrap_or_else(|_| {
        let stable = stable_test_cwd();
        std::env::set_current_dir(&stable).expect("chdir stable fallback");
        stable
    })
}

pub fn restore_cwd(path: &Path) {
    if std::env::set_current_dir(path).is_err() {
        let _ = std::env::set_current_dir(stable_test_cwd());
    }
}

pub fn block_on_test_async<F, T>(future: F) -> T
where
    F: std::future::Future<Output = T>,
{
    tokio::runtime::Builder::new_current_thread()
        .enable_all()
        .build()
        .expect("test runtime")
        .block_on(future)
}

pub fn enable_test_fast_teardown() {
    #[allow(unsafe_code)]
    unsafe {
        std::env::set_var(crate::acp::MALVIN_TEST_NO_REAL_AGENT_ENV, "1");
    }
}

pub fn clear_test_no_real_agent_env() {
    #[allow(unsafe_code)]
    unsafe {
        std::env::remove_var(crate::acp::MALVIN_TEST_NO_REAL_AGENT_ENV);
    }
}

pub fn allow_home_malvin_config_mutation_for_test() {
    #[allow(unsafe_code)]
    unsafe {
        std::env::set_var(MALVIN_TEST_ALLOW_HOME_CONFIG_MUTATION, "1");
    }
}

pub fn revoke_home_malvin_config_mutation_for_test() {
    #[allow(unsafe_code)]
    unsafe {
        std::env::remove_var(MALVIN_TEST_ALLOW_HOME_CONFIG_MUTATION);
    }
}

pub fn set_test_home_env(home: &Path) {
    #[allow(unsafe_code)]
    unsafe {
        std::env::set_var("HOME", home);
        allow_home_malvin_config_mutation_for_test();
    }
}

pub struct SavedEnvVars {
    entries: Vec<(String, Option<OsString>)>,
}

impl SavedEnvVars {
    #[must_use]
    pub fn capture(names: &[&str]) -> Self {
        let entries = names
            .iter()
            .map(|name| ((*name).to_string(), std::env::var_os(name)))
            .collect();
        Self { entries }
    }
}

impl Drop for SavedEnvVars {
    fn drop(&mut self) {
        #[allow(unsafe_code)]
        unsafe {
            for (name, value) in self.entries.drain(..) {
                match value {
                    Some(v) => std::env::set_var(&name, v),
                    None => std::env::remove_var(&name),
                }
            }
        }
    }
}