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use std::cmp;
use std::fs;
use std::time;
use crate::structs;
#[derive(Debug, Clone)]
pub struct SortOption {
pub show_hidden: bool,
pub directories_first: bool,
pub case_sensitive: bool,
pub reverse: bool,
}
#[derive(Debug, Clone)]
pub enum SortType {
SortNatural(SortOption),
SortMtime(SortOption),
}
impl SortType {
pub fn compare_func(
&self,
) -> fn(&structs::JoshutoDirEntry, &structs::JoshutoDirEntry) -> std::cmp::Ordering {
match *self {
SortType::SortNatural(ref ss) => {
if ss.directories_first && !ss.case_sensitive && !ss.reverse {
SortNatural::dir_first_case_insensitive
} else if ss.directories_first && ss.case_sensitive && !ss.reverse {
SortNatural::dir_first
} else {
SortNatural::default_sort
}
}
SortType::SortMtime(ref ss) => {
if ss.directories_first && !ss.reverse {
SortMtime::dir_first
} else {
SortMtime::default_sort
}
}
}
}
pub fn filter_func(
&self,
) -> fn(Result<fs::DirEntry, std::io::Error>) -> Option<structs::JoshutoDirEntry> {
match *self {
SortType::SortNatural(ref ss) => {
if ss.show_hidden {
filter_default
} else {
filter_hidden_files
}
}
SortType::SortMtime(ref ss) => {
if ss.show_hidden {
filter_default
} else {
filter_hidden_files
}
}
}
}
pub fn show_hidden(&self) -> bool {
match *self {
SortType::SortNatural(ref ss) => ss.show_hidden,
SortType::SortMtime(ref ss) => ss.show_hidden,
}
}
pub fn set_show_hidden(&mut self, show_hidden: bool) {
match self {
SortType::SortNatural(ref mut ss) => {
ss.show_hidden = show_hidden;
}
SortType::SortMtime(ref mut ss) => {
ss.show_hidden = show_hidden;
}
}
}
}
fn filter_default(
result: Result<fs::DirEntry, std::io::Error>,
) -> Option<structs::JoshutoDirEntry> {
match result {
Ok(direntry) => match structs::JoshutoDirEntry::from(&direntry) {
Ok(s) => Some(s),
Err(e) => {
eprintln!("error: {:?}", e);
None
}
},
Err(_) => None,
}
}
fn filter_hidden_files(
result: Result<fs::DirEntry, std::io::Error>,
) -> Option<structs::JoshutoDirEntry> {
match result {
Ok(direntry) => match direntry.file_name().into_string() {
Ok(file_name) => {
if file_name.starts_with('.') {
None
} else {
match structs::JoshutoDirEntry::from(&direntry) {
Ok(s) => Some(s),
Err(e) => {
eprintln!("error: {:?}", e);
None
}
}
}
}
Err(_) => None,
},
Err(_) => None,
}
}
pub struct SortNatural {}
impl SortNatural {
pub fn dir_first_case_insensitive(
file1: &structs::JoshutoDirEntry,
file2: &structs::JoshutoDirEntry,
) -> cmp::Ordering {
let f1_isdir = file1.path.is_dir();
let f2_isdir = file2.path.is_dir();
if f1_isdir && !f2_isdir {
cmp::Ordering::Less
} else if !f1_isdir && f2_isdir {
cmp::Ordering::Greater
} else {
let f1_name = file1.file_name_as_string.to_lowercase();
let f2_name = file2.file_name_as_string.to_lowercase();
if f1_name <= f2_name {
cmp::Ordering::Less
} else {
cmp::Ordering::Greater
}
}
}
pub fn dir_first(
file1: &structs::JoshutoDirEntry,
file2: &structs::JoshutoDirEntry,
) -> cmp::Ordering {
let f1_isdir = file1.path.is_dir();
let f2_isdir = file2.path.is_dir();
if f1_isdir && !f2_isdir {
cmp::Ordering::Less
} else if !f1_isdir && f2_isdir {
cmp::Ordering::Greater
} else {
Self::default_sort(file1, file2)
}
}
pub fn default_sort(
file1: &structs::JoshutoDirEntry,
file2: &structs::JoshutoDirEntry,
) -> cmp::Ordering {
if file1.file_name <= file2.file_name {
cmp::Ordering::Less
} else {
cmp::Ordering::Greater
}
}
}
pub struct SortMtime {}
impl SortMtime {
pub fn dir_first(
file1: &structs::JoshutoDirEntry,
file2: &structs::JoshutoDirEntry,
) -> cmp::Ordering {
fn compare(
file1: &structs::JoshutoDirEntry,
file2: &structs::JoshutoDirEntry,
) -> Result<cmp::Ordering, std::io::Error> {
let f1_isdir = file1.path.is_dir();
let f2_isdir = file2.path.is_dir();
if f1_isdir && !f2_isdir {
Ok(cmp::Ordering::Less)
} else if !f1_isdir && f2_isdir {
Ok(cmp::Ordering::Greater)
} else {
Ok(SortMtime::default_sort(file1, file2))
}
}
compare(&file1, &file2).unwrap_or(cmp::Ordering::Less)
}
pub fn default_sort(
file1: &structs::JoshutoDirEntry,
file2: &structs::JoshutoDirEntry,
) -> cmp::Ordering {
fn compare(
file1: &structs::JoshutoDirEntry,
file2: &structs::JoshutoDirEntry,
) -> Result<cmp::Ordering, std::io::Error> {
let f1_meta: fs::Metadata = std::fs::metadata(&file1.path)?;
let f2_meta: fs::Metadata = std::fs::metadata(&file2.path)?;
let f1_mtime: time::SystemTime = f1_meta.modified()?;
let f2_mtime: time::SystemTime = f2_meta.modified()?;
Ok(if f1_mtime <= f2_mtime {
cmp::Ordering::Less
} else {
cmp::Ordering::Greater
})
}
compare(&file1, &file2).unwrap_or(cmp::Ordering::Less)
}
}
|
