Add systemd service and fix locale issue when running as service

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "home-watcher"
-version = "0.1.1"
+version = "0.2.1"
 edition = "2021"
 
 [profile.release]

README.md

@@ -25,7 +25,7 @@ Note: Common user directories like `Documents`, `Downloads`, `Pictures`, `Videos
 
 ## Installation
 
-1. **Build from Source**  
+1. **Build from source**  
    Clone the repository and compile the Rust project:
    ```bash
    git clone https://github.com/QazCetelic/home-watcher.git
@@ -34,11 +34,18 @@ Note: Common user directories like `Documents`, `Downloads`, `Pictures`, `Videos
    ```
    The compiled binary will be available in the `target/release` directory.
 
-2. **Install the Binary**  
+2. **Install the binary**  
    Move the binary to a directory in your `PATH`, such as `/usr/local/bin`:
    ```bash
    sudo mv target/release/home-watcher /usr/local/bin/
    ```
+
+3. **Install the systemd service**  
+   Make sure to change <USER> in home-watcher.service
+   ```bash
+   sudo cp ./home-watcher.service /etc/systemd/system/home-watcher.service
+   sudo systemctl enable home-watcher.service --now
+   ```
 
 ## Database
 The database contains an `files` table with the following data:

home-watcher.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Log creation of non-standard home directory files
+After=basic.target
+
+[Service]
+Restart=on-failure
+Type=simple
+ExecStart=/usr/local/bin/home-watcher --user <USER> --excluded-dirs .var
+
+[Install]
+WantedBy=multi-user.target

src/ausearch_parse.rs

@@ -24,7 +24,7 @@ pub fn parse_csv<I>(mut lines: I) -> Vec<Interaction>
 where I: Iterator<Item = String>,
 {
     let mut interactions: Vec<Interaction> = Vec::new();
-    let header = lines.next().expect("Output is empty");
+    let header = if let Some(h) = lines.next() { h } else { return interactions; };
     if header != EXPECTED_HEADER {
         panic!("Unexpected header")
     }

src/file_audit.rs

@@ -1,6 +1,6 @@
 use crate::ausearch_parse::{parse_csv, Interaction};
 use crate::time::DateTime;
-use std::io::BufRead;
+use std::io::{BufRead, Read};
 use std::process::{Command, Output, Stdio};
 
 pub const AUDITD_RULE_TAG: &str = "home_watcher_rule";

src/main.rs

@@ -6,6 +6,7 @@ use crate::user_env::UserEnvironment;
 use crate::util::{create_db_file, get_default_db_path, get_excluded_directories, get_user};
 use clap::Parser;
 use std::collections::HashSet;
+use std::env::set_var;
 use std::path::PathBuf;
 use std::thread::sleep;
 use std::time::Duration;
@@ -43,6 +44,9 @@ struct Args {
 }
 
 fn main() {
+    // Use IS8601 / RFC3339 date (YYYY-MM-DD) to avoid issues with ausearch
+    set_var("LC_TIME", "en_DK.UTF-8");
+
     let args = Args::parse();
     let mut excluded_executables: HashSet<String> = Default::default();
     let excluded_executables_str: String;