diff --git a/src/main.rs b/src/main.rs
index 023539c..f6e667b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,12 +6,19 @@
You should have received a copy of the GNU General Public License along with this program. If not, see .
*/
-fn main() -> Result<(), Box> {
+mod pacman_install_check;
+
+fn main() {
println!("{}", copyright_notice());
- Ok(())
+ if let Err(e) = pacman_install_check::run() {
+ eprintln!("{}", e);
+ return;
+ }
+
+ println!("Here we do things");
}
fn copyright_notice() -> &'static str {
- "Rust Arch Linux Updater Copyright (C) 2024 Luke Harding \nThis program comes with ABSOLUTELY NO WARRANTY\nThis is free software, and you are welcome to redistribute it under certain conditions"
+ "Rust Arch Linux Updater Copyright (C) 2024 Luke Harding \nThis program comes with ABSOLUTELY NO WARRANTY\nThis is free software, and you are welcome to redistribute it under certain conditions\n"
}
diff --git a/src/pacman_install_check.rs b/src/pacman_install_check.rs
new file mode 100644
index 0000000..8eceb8f
--- /dev/null
+++ b/src/pacman_install_check.rs
@@ -0,0 +1,30 @@
+/*
+ Rust Arch Linux Updater
+ Copyright (C) 2024 Luke Harding
+ This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License along with this program. If not, see .
+*/
+
+use std::fmt;
+use std::fmt::Formatter;
+use std::path::Path;
+
+#[derive(Debug, Clone)]
+pub struct PacmanInstalledError;
+
+impl fmt::Display for PacmanInstalledError {
+ fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+ write!(f, "pacman pkg manager not installed.")
+ }
+}
+
+pub fn run() -> Result<(), PacmanInstalledError> {
+ let exists = Path::new("/usr/bin/pacman").exists();
+
+ if exists {
+ Ok(())
+ } else {
+ Err(PacmanInstalledError)
+ }
+}