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|
use std::cmp::{Ord, Ordering};
use std::error::Error;
use std::ops::Index;
use std::path::{Path, PathBuf};
use std::time::SystemTime;
use lscolors::LsColors;
use mime_detective;
use rayon::prelude::*;
lazy_static! {
static ref COLORS: LsColors = LsColors::from_env().unwrap();
}
#[derive(PartialEq)]
pub struct Files {
pub directory: File,
pub files: Vec<File>,
pub sort: SortBy,
pub dirs_first: bool,
}
impl Index<usize> for Files {
type Output = File;
fn index(&self, pos: usize) -> &Self::Output {
&self.files[pos]
}
}
fn get_kind(file: &std::fs::DirEntry) -> Kind {
let file = file.file_type().unwrap();
if file.is_file() {
return Kind::File;
}
if file.is_dir() {
return Kind::Directory;
}
if file.is_symlink() {
return Kind::Link;
}
Kind::Pipe
}
fn get_color(path: &Path, meta: &std::fs::Metadata) -> Option<lscolors::Color> {
match COLORS.style_for_path_with_metadata(path, Some(&meta)) {
Some(style) => style.clone().foreground,
None => None,
}
}
impl Files {
pub fn new_from_path(path: &Path) -> Result<Files, Box<dyn Error>> {
let direntries: Result<Vec<_>, _> = std::fs::read_dir(&path)?.collect();
let files: Vec<_> = direntries?
.par_iter()
.map(|file| {
//let file = file?;
let name = file.file_name();
let name = name.to_string_lossy();
let kind = get_kind(&file);
let path = file.path();
let meta = file.metadata().unwrap();
let size = meta.len() / 1024;
let mtime = meta.modified().unwrap();
let color = get_color(&path, &meta);
File::new(&name, path, kind, size as usize, mtime, color)
})
.collect();
let mut files = Files {
directory: File::new_from_path(&path)?,
files: files,
sort: SortBy::Name,
dirs_first: true,
};
files.sort();
if files.files.len() == 0 {
files.files = vec![File::new_placeholder(&path)?];
}
Ok(files)
}
pub fn sort(&mut self) {
match self.sort {
SortBy::Name => self
.files
.sort_by(|a, b| alphanumeric_sort::compare_str(&a.name, &b.name)),
SortBy::Size => {
self.files.sort_by(|a, b| {
if a.size == b.size {
return alphanumeric_sort::compare_str(&b.name, &a.name);
}
a.size.cmp(&b.size).reverse()
});
}
SortBy::MTime => {
self.files.sort_by(|a, b| {
if a.mtime == b.mtime {
return alphanumeric_sort::compare_str(&a.name, &b.name);
}
a.mtime.cmp(&b.mtime)
});
}
};
if self.dirs_first {
self.files.sort_by(|a, b| {
if a.is_dir() && !b.is_dir() {
Ordering::Less
} else {
Ordering::Equal
}
});
}
}
pub fn cycle_sort(&mut self) {
self.sort = match self.sort {
SortBy::Name => SortBy::Size,
SortBy::Size => SortBy::MTime,
SortBy::MTime => SortBy::Name,
};
}
pub fn len(&self) -> usize {
self.files.len()
}
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum Kind {
Directory,
File,
Link,
Pipe,
Placeholder
}
impl std::fmt::Display for SortBy {
fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
let text = match self {
SortBy::Name => "name",
SortBy::Size => "size",
SortBy::MTime => "mtime",
};
write!(formatter, "{}", text)
}
}
#[derive(Debug, Copy, Clone, PartialEq)]
pub enum SortBy {
Name,
Size,
MTime,
}
#[derive(Debug, PartialEq, Clone)]
pub struct File {
pub name: String,
pub path: PathBuf,
pub size: Option<usize>,
pub kind: Kind,
pub mtime: SystemTime,
pub color: Option<lscolors::Color>,
// owner: Option<String>,
// group: Option<String>,
// flags: Option<String>,
}
impl File {
pub fn new(
name: &str,
path: PathBuf,
kind: Kind,
size: usize,
mtime: SystemTime,
color: Option<lscolors::Color>,
) -> File {
File {
name: name.to_string(),
path: path,
size: Some(size),
kind: kind,
mtime: mtime,
color: color
// owner: None,
// group: None,
// flags: None,
}
}
pub fn new_from_path(path: &Path) -> Result<File, Box<Error>> {
let pathbuf = path.to_path_buf();
let name = path
.file_name()
.map(|name| name.to_string_lossy().to_string())
.unwrap_or("/".to_string());
let kind = Kind::Directory; //get_kind(&path);
let meta = &path.metadata().unwrap();
let size = meta.len() / 1024;
let mtime = meta.modified().unwrap();
let color = get_color(&path, meta);
Ok(File::new(&name, pathbuf, kind, size as usize, mtime, color))
}
pub fn new_placeholder(path: &Path) -> Result<File, Box<Error>> {
let mut file = File::new_from_path(path)?;
file.name = "<empty>".to_string();
file.kind = Kind::Placeholder;
Ok(file)
}
pub fn calculate_size(&self) -> (usize, String) {
let mut unit = 0;
let mut size = self.size.unwrap();
while size > 1024 {
size /= 1024;
unit += 1;
}
let unit = match unit {
0 => "",
1 => " KB",
2 => " GB",
3 => " TB",
4 => "wtf are you doing",
_ => "",
}
.to_string();
(size, unit)
}
pub fn get_mime(&self) -> Option<String> {
let detective = mime_detective::MimeDetective::new().ok()?;
let mime = detective.detect_filepath(&self.path).ok()?;
Some(mime.type_().as_str().to_string())
}
pub fn grand_parent(&self) -> Option<PathBuf> {
Some(self.path.parent()?.parent()?.to_path_buf())
}
pub fn is_dir(&self) -> bool {
self.kind == Kind::Directory
}
pub fn read_dir(&self) -> Result<Files, Box<Error>> {
match self.kind {
Kind::Placeholder =>
|
