impyard 0.1.1

Rent the intelligence, own the governance — a control plane for imps: software colleagues whose every action passes through a gateway you control (default-deny egress, injected credentials, budgets, approval gates, audit).
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

//! What an imp is and knows: trusted context compilation, scoped interaction
//! memory, Git-backed world knowledge, the journal, and knowledge policy.

pub mod boundary;
pub mod context;
pub mod journal;
pub mod knowledge;
pub mod memory;
pub mod storage;

use crate::util::BErr;

/// Resolve an imp name against `imps/` — the guard that keeps a typo from
/// filing tasks for an imp that does not exist.
pub fn require_imp(name: &str) -> Result<(), BErr> {
    if crate::paths::imp_dir(name).join("imp.toml").exists() {
        return Ok(());
    }
    let mut have: Vec<String> = std::fs::read_dir(crate::paths::imps_dir())
        .map(|entries| {
            entries
                .filter_map(|e| e.ok())
                .filter(|e| e.path().join("imp.toml").exists())
                .map(|e| e.file_name().to_string_lossy().into_owned())
                .collect()
        })
        .unwrap_or_default();
    have.sort();
    Err(format!(
        "no such imp \"{name}\"{}",
        if have.is_empty() {
            String::new()
        } else {
            format!(" (have: {})", have.join(", "))
        }
    )
    .into())
}