ZIm/crates/util/src/fs.rs
2025-03-31 20:55:27 +02:00

93 lines
2.7 KiB
Rust

use crate::ResultExt;
use anyhow::{Result, bail};
use async_fs as fs;
use futures_lite::StreamExt;
use std::path::{Path, PathBuf};
/// Removes all files and directories matching the given predicate
pub async fn remove_matching<F>(dir: &Path, predicate: F)
where
F: Fn(&Path) -> bool,
{
if let Some(mut entries) = fs::read_dir(dir).await.log_err() {
while let Some(entry) = entries.next().await {
if let Some(entry) = entry.log_err() {
let entry_path = entry.path();
if predicate(entry_path.as_path()) {
if let Ok(metadata) = fs::metadata(&entry_path).await {
if metadata.is_file() {
fs::remove_file(&entry_path).await.log_err();
} else {
fs::remove_dir_all(&entry_path).await.log_err();
}
}
}
}
}
}
}
pub async fn collect_matching<F>(dir: &Path, predicate: F) -> Vec<PathBuf>
where
F: Fn(&Path) -> bool,
{
let mut matching = vec![];
if let Some(mut entries) = fs::read_dir(dir).await.log_err() {
while let Some(entry) = entries.next().await {
if let Some(entry) = entry.log_err() {
if predicate(entry.path().as_path()) {
matching.push(entry.path());
}
}
}
}
matching
}
pub async fn find_file_name_in_dir<F>(dir: &Path, predicate: F) -> Option<PathBuf>
where
F: Fn(&str) -> bool,
{
if let Some(mut entries) = fs::read_dir(dir).await.log_err() {
while let Some(entry) = entries.next().await {
if let Some(entry) = entry.log_err() {
let entry_path = entry.path();
if let Some(file_name) = entry_path
.file_name()
.map(|file_name| file_name.to_string_lossy())
{
if predicate(&file_name) {
return Some(entry_path);
}
}
}
}
}
None
}
pub async fn move_folder_files_to_folder<P: AsRef<Path>>(
source_path: P,
target_path: P,
) -> Result<()> {
if !target_path.as_ref().is_dir() {
bail!("Folder not found or is not a directory");
}
let mut entries = fs::read_dir(source_path.as_ref()).await?;
while let Some(entry) = entries.next().await {
let entry = entry?;
let old_path = entry.path();
let new_path = target_path.as_ref().join(entry.file_name());
fs::rename(&old_path, &new_path).await?;
}
fs::remove_dir(source_path).await?;
Ok(())
}