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Mountain/IPC/WindServiceHandlers/Git/
HandleIsAvailable.rs

1#![allow(non_snake_case)]
2
3//! `localGit:isAvailable -> bool`. Cheap `git --version` probe
4//! cached in a `OnceLock` for the process lifetime so the UI's
5//! periodic poll doesn't re-exec git every interval.
6
7use std::sync::OnceLock;
8
9use serde_json::{Value, json};
10use tokio::process::Command;
11
12use crate::dev_log;
13
14pub async fn HandleIsAvailable(_Arguments:Vec<Value>) -> Result<Value, String> {
15	static CACHE:OnceLock<bool> = OnceLock::new();
16
17	if let Some(Cached) = CACHE.get() {
18		return Ok(json!(*Cached));
19	}
20
21	let Available = Command::new("git")
22		.arg("--version")
23		.output()
24		.await
25		.map(|O| O.status.success())
26		.unwrap_or(false);
27
28	let _ = CACHE.set(Available);
29
30	dev_log!("git", "[Git] isAvailable={}", Available);
31
32	Ok(json!(Available))
33}