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use crate::{UError, UResult};
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use std::{env::temp_dir, fs, ops::Drop, os::unix::fs::PermissionsExt, path::PathBuf};
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use uuid::Uuid;
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pub struct TempFile {
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path: PathBuf,
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}
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impl TempFile {
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pub fn get_path(&self) -> String {
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self.path.to_string_lossy().to_string()
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}
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pub fn new() -> Self {
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let name = Uuid::simple(&Uuid::new_v4()).to_string();
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let mut path = temp_dir();
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path.push(name);
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Self { path }
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}
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pub fn write_all(&self, data: &[u8]) -> UResult<()> {
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fs::write(&self.path, data).map_err(|e| UError::FSError(self.get_path(), e.to_string()))?;
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Ok(())
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}
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pub fn write_exec(data: &[u8]) -> UResult<Self> {
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let this = Self::new();
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let path = this.get_path();
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dbg!(&path);
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this.write_all(data)?;
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let perms = fs::Permissions::from_mode(0o555);
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fs::set_permissions(&path, perms).map_err(|e| UError::FSError(path, e.to_string()))?;
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Ok(this)
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}
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}
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impl Drop for TempFile {
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fn drop(&mut self) {
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fs::remove_file(&self.path).unwrap();
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::utils::bytes_to_string;
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use std::path::Path;
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use std::process::Command;
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#[test]
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fn test_file_is_not_busy() {
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let binary = include_bytes!("../../tests/fixtures/echoer");
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for _ in 0..100 {
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let executable = TempFile::write_exec(binary).unwrap();
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let path = executable.get_path();
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let result = Command::new(path).arg("qwe").output().unwrap();
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assert_eq!(bytes_to_string(result.stdout.as_ref()).trim(), "qwe");
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}
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}
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#[test]
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|
fn test_file_removed_after_dropping() {
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|
|
let path;
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|
|
{
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|
|
let file = TempFile::new();
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|
|
file.write_all(b"asdqwe").unwrap();
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|
|
path = file.get_path();
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|
|
assert!(Path::new(&path).exists())
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}
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|
|
assert!(!Path::new(&path).exists())
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}
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}
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