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Copy pathpackage.rs
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250 lines (218 loc) · 8.23 KB
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//----------------------------------------
use std::borrow::BorrowMut;
use std::fs::{self, File};
use std::io::Read;
use std::path::PathBuf;
use flate2::read::GzDecoder;
use tar::Archive;
use walkdir::WalkDir;
//----------------------------------------
pub struct Package {
r#type: PackageType,
}
//----------------------------------------
enum PackageType {
Folder(PathBuf),
Tar(PathBuf),
TarGz(PathBuf),
}
//----------------------------------------
enum PackageFileSystemHandle {
Folder(String, Option<WalkDir>),
Tar(Archive<File>),
TarGz(Archive<GzDecoder<File>>),
}
//----------------------------------------
pub enum PackageEntries<'a> {
Folder(
String,
Option<Box<dyn Iterator<Item = Result<walkdir::DirEntry, walkdir::Error>>>>,
),
Tar(Result<tar::Entries<'a, File>, std::io::Error>),
TarGz(Result<tar::Entries<'a, GzDecoder<File>>, std::io::Error>),
}
//----------------------------------------
pub enum PackageEntry<'a> {
Folder(String, walkdir::DirEntry),
Tar(tar::Entry<'a, File>),
TarGz(tar::Entry<'a, GzDecoder<File>>),
}
//----------------------------------------
pub struct PackageHandle {
handle: PackageFileSystemHandle,
}
//----------------------------------------
impl core::fmt::Display for Package {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match &self.r#type {
PackageType::Folder(path) => write!(f, "Folder: {}", path.display()),
PackageType::Tar(path) => write!(f, "Tar: {}", path.display()),
PackageType::TarGz(path) => write!(f, "TarGz: {}", path.display()),
}
}
}
//----------------------------------------
impl Package {
pub fn new(path: &str) -> Result<Package, String> {
let path = PathBuf::from(path);
if path.is_dir() {
Ok(Package {
// canonicalize to fix any path issues
r#type: PackageType::Folder(path.canonicalize().unwrap()),
})
} else if path.is_file() {
let kind = infer::get_from_path(&path).unwrap().unwrap();
match kind.mime_type() {
"application/x-tar" => Ok(Package {
r#type: PackageType::Tar(path),
}),
"application/gzip" => Ok(Package {
r#type: PackageType::TarGz(path),
}),
_ => Err("File is not a tar or tar.gz".into()),
}
} else {
Err("Path is not a file or directory".into())
}
}
pub fn open(self) -> Result<PackageHandle, String> {
match self.r#type {
PackageType::Folder(path) => {
let dir = WalkDir::new(&path);
Ok(PackageHandle {
handle: PackageFileSystemHandle::Folder(
path.to_str().unwrap().to_string(),
Some(dir),
),
})
}
PackageType::Tar(path) => {
let file = File::open(&path).unwrap();
let archive = Archive::new(file);
Ok(PackageHandle {
handle: PackageFileSystemHandle::Tar(archive),
})
}
PackageType::TarGz(path) => {
let file = File::open(&path).unwrap();
let file = GzDecoder::new(file);
let archive = Archive::new(file);
Ok(PackageHandle {
handle: PackageFileSystemHandle::TarGz(archive),
})
}
}
}
}
//----------------------------------------
impl PackageHandle {
pub fn entries(&mut self) -> PackageEntries {
match self.handle.borrow_mut() {
PackageFileSystemHandle::Folder(path, entries) => PackageEntries::Folder(
path.clone(),
Some(Box::new(entries.take().unwrap().into_iter())),
),
PackageFileSystemHandle::Tar(archive) => PackageEntries::Tar(archive.entries()),
PackageFileSystemHandle::TarGz(archive) => PackageEntries::TarGz(archive.entries()),
}
}
}
//----------------------------------------
impl<'a> Iterator for PackageEntries<'a> {
type Item = std::io::Result<PackageEntry<'a>>;
fn next(&mut self) -> Option<std::io::Result<PackageEntry<'a>>> {
match self.borrow_mut() {
PackageEntries::Folder(path, entries) => {
let next = entries.as_mut().unwrap().next();
match next {
Some(Ok(entry)) => Some(Ok(PackageEntry::Folder(path.clone(), entry))),
Some(Err(err)) => Some(Err(err.into())),
None => None,
}
}
PackageEntries::Tar(entries) => match entries.as_mut().unwrap().next() {
Some(Ok(entry)) => Some(Ok(PackageEntry::Tar(entry))),
Some(Err(err)) => Some(Err(err)),
None => None,
},
PackageEntries::TarGz(entries) => match entries.as_mut().unwrap().next() {
Some(Ok(entry)) => Some(Ok(PackageEntry::TarGz(entry))),
Some(Err(err)) => Some(Err(err)),
None => None,
},
}
}
}
impl<'a> PackageEntry<'a> {
pub fn size(&self) -> Option<usize> {
match self {
PackageEntry::Folder(_path, entry) => Some(entry.metadata().unwrap().len() as usize),
PackageEntry::Tar(entry) => Some(entry.header().size().unwrap() as usize),
PackageEntry::TarGz(entry) => Some(entry.header().size().unwrap() as usize),
}
}
pub fn path(&self) -> Option<PathBuf> {
match self {
PackageEntry::Folder(root_path, entry) => {
let path = entry.path().to_str().unwrap();
let replace = format!("{}/", root_path);
let path = path.replace(&replace, "");
// println!("path: {}", path);
Some(PathBuf::from(path))
}
PackageEntry::Tar(entry) => Some(PathBuf::from(entry.path().unwrap())),
PackageEntry::TarGz(entry) => Some(PathBuf::from(entry.path().unwrap())),
}
}
pub fn read_to_string(&mut self, buf: &mut String) -> std::io::Result<usize> {
match self {
PackageEntry::Folder(_path, entry) => {
let path = entry.path().to_str().unwrap();
let result = fs::read_to_string(path);
*buf = result.unwrap();
Ok(buf.len())
}
PackageEntry::Tar(entry) => entry.read_to_string(buf),
PackageEntry::TarGz(entry) => entry.read_to_string(buf),
}
}
pub fn read_to_end(&mut self, buf: &mut Vec<u8>) -> std::io::Result<usize> {
match self {
PackageEntry::Folder(_path, entry) => {
let path = entry.path().to_str().unwrap();
let result = fs::read(path);
*buf = result.unwrap();
Ok(buf.len())
}
PackageEntry::Tar(entry) => entry.read_to_end(buf),
PackageEntry::TarGz(entry) => entry.read_to_end(buf),
}
}
pub fn guid(&self) -> String {
match self {
PackageEntry::Folder(root_path, entry) => {
let replace = format!("{}/", root_path);
let path = entry.path().to_str().unwrap();
let path = path.replace(&replace, "");
let path = path.split("/").collect::<Vec<&str>>();
let path = path.first().unwrap();
path.to_string()
}
PackageEntry::Tar(entry) => {
let path = entry.path().unwrap();
let path = path.to_str().unwrap();
let path = path.split("/").collect::<Vec<&str>>();
let path = path.first().unwrap();
path.to_string()
}
PackageEntry::TarGz(entry) => {
let path = entry.path().unwrap();
let path = path.to_str().unwrap();
let path = path.split("/").collect::<Vec<&str>>();
let path = path.first().unwrap();
path.to_string()
}
}
}
}
//----------------------------------------