nixide/rust/nix-util/src/settings.rs
Taeer Bar-Yam cc2e640e7f check_call!() macro to use () not []
(cherry picked from commit 66d255af0a5d331782dc24c89bb45d3434f3c109)
2025-10-04 02:31:16 +02:00

71 lines
1.8 KiB
Rust

use anyhow::Result;
use nix_c_raw as raw;
use crate::{
check_call, context, result_string_init,
string_return::{callback_get_result_string, callback_get_result_string_data},
};
pub fn set(key: &str, value: &str) -> Result<()> {
let mut ctx = context::Context::new();
let key = std::ffi::CString::new(key)?;
let value = std::ffi::CString::new(value)?;
unsafe {
check_call!(raw::setting_set(&mut ctx, key.as_ptr(), value.as_ptr()))?;
}
Ok(())
}
pub fn get(key: &str) -> Result<String> {
let mut ctx = context::Context::new();
let key = std::ffi::CString::new(key)?;
let mut r: Result<String> = result_string_init!();
unsafe {
check_call!(raw::setting_get(
&mut ctx,
key.as_ptr(),
Some(callback_get_result_string),
callback_get_result_string_data(&mut r)
))?;
}
r
}
#[cfg(test)]
mod tests {
use crate::check_call;
use super::*;
#[ctor::ctor]
fn setup() {
let mut ctx = context::Context::new();
unsafe {
check_call!(raw::libstore_init(&mut ctx)).unwrap();
}
}
#[test]
fn set_get() {
// Something that shouldn't matter if it's a different value temporarily
let key = "user-agent-suffix";
// Save the old value, in case it's important. Probably not.
// If this doesn't work, pick a different setting to test with
let old_value = get(key).unwrap();
let new_value = "just a string that we're storing into some option for testing purposes";
let res_e = (|| {
set(key, new_value)?;
get(key)
})();
// Restore immediately; try not to affect other tests (if relevant).
set(key, old_value.as_str()).unwrap();
let res = res_e.unwrap();
assert_eq!(res, new_value);
}
}