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extern crate clap;
extern crate dirs;
use clap::{App, AppSettings::ArgRequiredElseHelp, Arg};
use csv::{ReaderBuilder, Writer};
use std::fs;
use std::io;
use std::path::{Component, PathBuf};
use std::time::{Duration, SystemTime, UNIX_EPOCH};
fn main() {
let matches = App::new("rsycle")
.author("Tom B. <tom@tombarrett.xyz>")
.version("0.1.0")
.about("Rsycle your files via cli")
.arg(
Arg::with_name("restore")
.long("restore")
.help("Restore INPUT file if given, if not open restore prompt"),
)
.arg(
Arg::with_name("empty")
.long("empty")
.help("Empties the rsyclebin"),
)
.arg(
Arg::with_name("list")
.long("list")
.help("List all files located in the rsyclebin"),
)
.arg(Arg::with_name("INPUT").help("File that will be recycled / restored"))
.setting(ArgRequiredElseHelp)
.get_matches();
let mut rsyclebin = dirs::home_dir().unwrap();
rsyclebin.push(".rsyclebin");
if !rsyclebin.exists() {
fs::create_dir(&rsyclebin).unwrap();
}
if let Some(filename) = matches.value_of("INPUT") {
let path = build_path(filename).unwrap();
if matches.is_present("restore") {
restore(rsyclebin, path).unwrap();
} else {
rsycle(rsyclebin, path).unwrap();
}
} else if matches.is_present("empty") {
empty(rsyclebin).unwrap();
} else if matches.is_present("list") {
list(rsyclebin).unwrap();
} else if matches.is_present("restore") {
restore_cli(rsyclebin);
}
}
pub fn build_path(filename: &str) -> Result<PathBuf, io::Error> {
let relative: PathBuf = [Component::CurDir, Component::Normal(filename.as_ref())]
.iter()
.collect();
if relative.exists() {
fs::canonicalize(&relative)
} else {
fs::File::create(relative.clone())?;
let full_path = fs::canonicalize(&relative.clone())?;
fs::remove_file(relative)?;
Ok(full_path)
}
}
pub fn rsycle(rsyclebin: PathBuf, old_path: PathBuf) -> Result<(), io::Error> {
if !old_path.exists() {
Err(io::Error::new(io::ErrorKind::NotFound, "File not found!"))
} else {
let new_filename = old_path.file_name().unwrap().to_str().unwrap().to_owned()
+ "."
+ &SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap()
.as_secs()
.to_string();
let mut new_path = rsyclebin.clone();
new_path.push(new_filename);
log(rsyclebin, old_path.clone(), new_path.clone())?;
fs::rename(old_path, new_path)
}
}
fn log(rsyclebin: PathBuf, old_path: PathBuf, new_path: PathBuf) -> Result<(), io::Error> {
let mut rsyclebin_log = rsyclebin.clone();
rsyclebin_log.push(".log");
let file = fs::OpenOptions::new()
.append(true)
.create(true)
.open(rsyclebin_log)?;
let mut writer = Writer::from_writer(file);
writer.write_record(&[
fs::canonicalize(old_path)?.to_str().unwrap(),
new_path.to_str().unwrap(),
])?;
writer.flush()
}
pub fn restore(rsyclebin: PathBuf, original_path: PathBuf) -> Result<(), io::Error> {
let current_path = most_recent_current_path(rsyclebin, original_path.clone())?;
if !original_path.exists() {
fs::rename(current_path, original_path)
} else {
Err(io::Error::new(
io::ErrorKind::NotFound,
"There is a file in the way!",
))
}
}
pub fn most_recent_current_path(rsyclebin: PathBuf, path: PathBuf) -> Result<PathBuf, io::Error> {
let mut rsyclebin_log = rsyclebin.clone();
rsyclebin_log.push(".log");
let file = fs::OpenOptions::new().read(true).open(rsyclebin_log)?;
let mut reader = ReaderBuilder::new().has_headers(false).from_reader(file);
let path_str = path.to_str().unwrap();
let original_paths: Vec<PathBuf> = reader
.records()
.map(Result::unwrap)
.filter(|line| line.get(0).unwrap() == path_str)
.map(|line| PathBuf::from(line.get(1).unwrap()))
.collect();
Ok(original_paths
.iter()
.max_by_key(|path| {
path.file_name()
.unwrap()
.to_str()
.unwrap()
.split('.')
.collect::<Vec<&str>>()
.pop()
.unwrap()
.parse::<u64>()
.unwrap()
})
.unwrap()
.to_path_buf())
}
pub fn list(rsyclebin: PathBuf) -> Result<(), io::Error> {
for current_path in all_paths(rsyclebin.clone())? {
let mut filename: Vec<&str> = current_path
.file_name()
.unwrap()
.to_str()
.unwrap()
.split('.')
.collect();
if let Some(last_point) = filename.pop() {
if let Ok(date) = last_point.parse::<u64>() {
let original_path = find_original_path(rsyclebin.clone(), current_path.clone())?;
let date = UNIX_EPOCH + Duration::from_secs(date);
println!(
"original: {:?}, current: {:?}, date: {:?}",
original_path, current_path, date
);
}
}
}
Ok(())
}
fn find_original_path(rsyclebin: PathBuf, current_path: PathBuf) -> Result<PathBuf, io::Error> {
let mut rsyclebin_log = rsyclebin.clone();
rsyclebin_log.push(".log");
let file = fs::OpenOptions::new().read(true).open(rsyclebin_log)?;
let mut reader = ReaderBuilder::new().has_headers(false).from_reader(file);
let path_str = current_path
.to_str()
.ok_or_else(|| io::Error::new(io::ErrorKind::NotFound, "Cannot convert."))?;
Ok(PathBuf::from(
reader
.records()
.map(Result::unwrap)
.find(|line| line.get(1).unwrap() == path_str)
.map(|line| line.get(0).unwrap().to_string())
.unwrap(),
))
}
pub fn empty(rsyclebin: PathBuf) -> Result<(), io::Error> {
for path in all_paths(rsyclebin)? {
if fs::remove_file(path.clone()).is_err() {
fs::remove_dir_all(path)?
}
}
Ok(())
}
fn all_paths(rsyclebin: PathBuf) -> Result<Vec<PathBuf>, io::Error> {
Ok(fs::read_dir(rsyclebin.clone())?
.map(Result::unwrap)
.map(|dir| dir.path())
.collect())
}
fn restore_cli(_rsyclebin: PathBuf) {
println!("unimplemented!")
}
|
