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Guarantee unique file names for temporary database

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This commit is contained in:
Ajeet D'Souza 2020-03-30 03:04:39 +05:30
parent 78a3d0a3d9
commit 3c7d100ab1
1 changed files with 7 additions and 3 deletions
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10
src/db.rs
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@ -6,7 +6,7 @@ use serde::{Deserialize, Serialize};
use uuid::Uuid;
use std::cmp::Ordering;
use std::fs::{self, File};
use std::fs::{self, File, OpenOptions};
use std::io::{self, BufRead, BufReader, BufWriter};
use std::path::{Path, PathBuf};
@ -77,8 +77,12 @@ impl DB {
if self.modified {
let path_tmp = self.get_path_tmp();
let file_tmp =
File::create(&path_tmp).context("could not open temporary database file")?;
let file_tmp = OpenOptions::new()
.write(true)
// ensure that we are not overwriting an existing file_tmp
.create_new(true)
.open(&path_tmp)
.context("could not open temporary database file")?;
let writer = BufWriter::new(&file_tmp);
bincode::serialize_into(writer, &self.data).context("could not serialize database")?;