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use std::fs;
use std::path;
use std::sync::mpsc;
use super::rename_filename_conflict;
#[derive(Clone, Copy, Debug)]
pub enum FileOp {
Cut,
Copy,
}
#[derive(Clone, Debug)]
pub struct IOWorkerOptions {
pub overwrite: bool,
pub skip_exist: bool,
}
impl std::default::Default for IOWorkerOptions {
fn default() -> Self {
Self {
overwrite: false,
skip_exist: false,
}
}
}
impl std::fmt::Display for IOWorkerOptions {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(
f,
"overwrite={} skip_exist={}",
self.overwrite, self.skip_exist
)
}
}
#[derive(Clone, Debug)]
pub struct IOWorkerProgress {
pub kind: FileOp,
pub index: usize,
pub len: usize,
pub processed: u64,
}
#[derive(Debug)]
pub struct IOWorkerThread {
pub kind: FileOp,
pub options: IOWorkerOptions,
pub paths: Vec<path::PathBuf>,
pub dest: path::PathBuf,
}
impl IOWorkerThread {
pub fn new(
kind: FileOp,
paths: Vec<path::PathBuf>,
dest: path::PathBuf,
options: IOWorkerOptions,
) -> Self {
Self {
kind,
options,
paths,
dest,
}
}
pub fn start(&self, tx: mpsc::Sender<IOWorkerProgress>) -> std::io::Result<IOWorkerProgress> {
match self.kind {
FileOp::Cut => self.paste_cut(tx),
FileOp::Copy => self.paste_copy(tx),
}
}
fn paste_copy(&self, tx: mpsc::Sender<IOWorkerProgress>) -> std::io::Result<IOWorkerProgress> {
let mut progress = IOWorkerProgress {
kind: self.kind,
index: 0,
processed: 0,
len: self.paths.len(),
};
for (i, path) in self.paths.iter().enumerate() {
progress.index = i;
tx.send(progress.clone());
self.recursive_copy(
path.as_path(),
self.dest.as_path(),
tx.clone(),
&mut progress,
)?;
}
Ok(IOWorkerProgress {
kind: self.kind,
index: self.paths.len(),
processed: progress.processed,
len: self.paths.len(),
})
}
fn recursive_copy(
&self,
src: &path::Path,
dest: &path::Path,
tx: mpsc::Sender<IOWorkerProgress>,
progress: &mut IOWorkerProgress,
) -> std::io::Result<()> {
let mut dest_buf = dest.to_path_buf();
if let Some(s) = src.file_name() {
dest_buf.push(s);
}
rename_filename_conflict(&mut dest_buf);
let file_type = fs::symlink_metadata(src)?.file_type();
if file_type.is_dir() {
fs::create_dir(dest_buf.as_path())?;
for entry in fs::read_dir(src)? {
let entry = entry?;
let entry_path = entry.path();
self.recursive_copy(
entry_path.as_path(),
dest_buf.as_path(),
tx.clone(),
progress,
)?;
tx.send(progress.clone());
}
Ok(())
} else if file_type.is_file() {
progress.processed += fs::copy(src, dest_buf)?;
Ok(())
} else if file_type.is_symlink() {
let link_path = fs::read_link(src)?;
std::os::unix::fs::symlink(link_path, dest_buf)?;
Ok(())
} else {
Ok(())
}
}
fn paste_cut(&self, tx: mpsc::Sender<IOWorkerProgress>) -> std::io::Result<IOWorkerProgress> {
let mut progress = IOWorkerProgress {
kind: self.kind,
index: 0,
processed: 0,
len: self.paths.len(),
};
for (i, path) in self.paths.iter().enumerate() {
progress.index = i;
tx.send(progress.clone());
self.recursive_cut(
path.as_path(),
self.dest.as_path(),
tx.clone(),
&mut progress,
)?;
}
Ok(IOWorkerProgress {
kind: self.kind,
index: self.paths.len(),
processed: progress.processed,
len: self.paths.len(),
})
}
pub fn recursive_cut(
&self,
src: &path::Path,
dest: &path::Path,
tx: mpsc::Sender<IOWorkerProgress>,
progress: &mut IOWorkerProgress,
) -> std::io::Result<()> {
let mut dest_buf = dest.to_path_buf();
if let Some(s) = src.file_name() {
dest_buf.push(s);
}
rename_filename_conflict(&mut dest_buf);
let metadata = fs::symlink_metadata(src)?;
let file_type = metadata.file_type();
if file_type.is_dir() {
match fs::rename(src, dest_buf.as_path()) {
Ok(_) => {
progress.processed += metadata.len();
}
Err(_) => {
fs::create_dir(dest_buf.as_path())?;
for entry in fs::read_dir(src)? {
let entry_path = entry?.path();
self.recursive_cut(
entry_path.as_path(),
dest_buf.as_path(),
tx.clone(),
progress,
)?;
}
fs::remove_dir(src)?;
}
}
} else if file_type.is_file() {
if fs::rename(src, dest_buf.as_path()).is_err() {
fs::copy(src, dest_buf.as_path())?;
fs::remove_file(src)?;
progress.processed += metadata.len();
}
} else if file_type.is_symlink() {
let link_path = fs::read_link(src)?;
std::os::unix::fs::symlink(link_path, dest_buf)?;
fs::remove_file(src)?;
progress.processed += metadata.len();
}
Ok(())
}
}
|
