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lib.rs
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lib.rs
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mod finder;
mod matcher;
mod sorter;
use std::collections::HashMap;
use std::ffi::CStr;
use std::os::raw::{c_char, c_int};
use std::sync::Mutex;
use std::mem;
#[repr(C)]
pub struct FFiMatchList {
len: c_int,
matches: *mut sorter::Match
}
#[macro_use]
extern crate lazy_static;
lazy_static! {
static ref GLOBAL_FILE_CACHE: Mutex<HashMap<String, Vec<String>>> = Mutex::new(HashMap::new());
}
fn to_string(input: *const c_char) -> String {
unsafe { CStr::from_ptr(input) }
.to_str()
.unwrap()
.to_string()
}
fn to_ffi_match_list(mut list: Vec<sorter::Match>) -> *const FFiMatchList {
list.shrink_to_fit();
let matches = list.as_mut_ptr();
let len: c_int = list.len().try_into().unwrap();
mem::forget(list);
return Box::into_raw(Box::new(FFiMatchList { len, matches }))
}
fn get_files(directory: &String) -> Vec<String> {
let mut cache = GLOBAL_FILE_CACHE.lock().unwrap();
if !cache.contains_key(directory) {
let finder_options = finder::Options {
directory: directory.clone(),
};
cache.insert(directory.clone(), finder::find_files(finder_options));
}
return cache.get(directory).unwrap().to_vec();
}
#[no_mangle]
pub extern "C" fn ivy_init(c_base_dir: *const c_char) {
let directory = to_string(c_base_dir);
get_files(&directory);
}
#[no_mangle]
pub extern "C" fn ivy_match(c_pattern: *const c_char, c_text: *const c_char) -> c_int {
let pattern = to_string(c_pattern);
let text = to_string(c_text);
inner_match(pattern, text)
}
pub fn inner_match(pattern: String, text: String) -> i32 {
let m = matcher::Matcher::new(pattern);
m.score(text.as_str()) as i32
}
#[no_mangle]
pub extern "C" fn ivy_files(c_pattern: *const c_char, c_base_dir: *const c_char) -> *const FFiMatchList {
let pattern = to_string(c_pattern);
let directory = to_string(c_base_dir);
return inner_files(pattern, directory);
}
pub fn inner_files(pattern: String, base_dir: String) -> *const FFiMatchList {
// Bail out early if the pattern is empty; it's never going to find anything
if pattern.is_empty() {
return to_ffi_match_list(Vec::new());
}
let files = get_files(&base_dir);
let sorter_options = sorter::Options::new(pattern);
to_ffi_match_list(sorter::sort_strings(sorter_options, files))
}

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Apr 3 2026, 4:54 AM (21 w, 3 d ago)
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