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mod path;
pub(crate) use path::EitherPath;
pub use path::{SafePath, WikPath};
use std::fmt;
use camino::Utf8PathBuf;
use tokio::{
fs::OpenOptions,
io::{AsyncReadExt, AsyncSeekExt, AsyncWriteExt, BufWriter},
};
use crate::{WikError, error::FileOp};
// MARK: WikFile
pub enum Open {
/// Read
Read,
/// Read + Write (truncating)
Write,
/// Read + Write + Append
Append,
/// Read + Write + Create (truncating)
Create,
/// Read + Write + Append + Create
CreateAppend,
}
pub struct WikFile {
path: Utf8PathBuf,
file: tokio::fs::File,
}
impl WikFile {
pub async fn exists(path: Utf8PathBuf) -> Result<bool, WikError> {
let result = tokio::fs::try_exists(&path).await;
match result {
Err(e) => Err(WikError::FileOperation {
op: FileOp::Open,
path,
io: e,
}),
Ok(f) => Ok(f),
}
}
pub async fn open(path: Utf8PathBuf, flags: Open) -> Result<Self, WikError> {
let mut options = OpenOptions::new();
let result = match flags {
Open::Read => options.read(true).open(&path),
Open::Write => options.read(true).write(true).truncate(true).open(&path),
Open::Append => options.read(true).append(true).open(&path),
Open::Create => options
.read(true)
.write(true)
.truncate(true)
.create(true)
.open(&path),
Open::CreateAppend => options.read(true).append(true).create(true).open(&path),
}
.await;
match result {
Err(e) => Err(WikError::FileOperation {
op: FileOp::Open,
path,
io: e,
}),
Ok(f) => Ok(WikFile { path, file: f }),
}
}
pub async fn read_to_string(mut self) -> Result<String, WikError> {
let mut str = String::new();
match self.file.read_to_string(&mut str).await {
Err(e) => Err(WikError::FileOperation {
op: FileOp::Read,
path: self.path,
io: e,
}),
Ok(_) => Ok(str),
}
}
pub async fn write_str(&mut self, str: &str) -> Result<(), WikError> {
match self.file.write_all(str.as_bytes()).await {
Err(e) => Err(WikError::FileOperation {
op: FileOp::Write,
path: self.path.clone(),
io: e,
}),
Ok(_) => Ok(()),
}
}
pub async fn write_all_strs<F: fmt::Display, I: Iterator<Item = F>>(
&mut self,
slice: I,
) -> Result<(), WikError> {
let mut bufwrite = BufWriter::new(&mut self.file);
for item in slice {
let result = bufwrite.write_all(item.to_string().as_bytes()).await;
if let Err(e) = result {
return Err(WikError::FileOperation {
op: FileOp::Write,
path: self.path.clone(),
io: e,
});
}
}
bufwrite
.flush()
.await
.map_err(|e| WikError::FileOperation {
op: FileOp::Write,
path: self.path.clone(),
io: e,
})?;
Ok(())
}
pub async fn seek_to_end(&mut self) -> Result<(), WikError> {
match self.file.seek(std::io::SeekFrom::End(0)).await {
Err(e) => Err(WikError::FileOperation {
op: FileOp::Read,
path: self.path.clone(),
io: e,
}),
Ok(_) => Ok(()),
}
}
pub async fn done(mut self) -> Result<(), WikError> {
match self.file.flush().await {
Err(e) => Err(WikError::FileOperation {
op: FileOp::Write,
path: self.path.clone(),
io: e,
}),
Ok(_) => Ok(()),
}
}
pub async fn remove(path: SafePath) -> Result<(), WikError> {
match tokio::fs::remove_file(&path).await {
Err(e) => Err(WikError::FileOperation {
op: FileOp::Delete,
path: path.0,
io: e,
}),
Ok(_) => Ok(()),
}
}
}
pub async fn create_dir(path: SafePath) -> Result<(), WikError> {
match tokio::fs::create_dir(&path).await {
Err(_) => Err(WikError::DirectoryCreation { path: path.0 }),
Ok(_) => Ok(()),
}
}
|
