75 lines
2.3 KiB
Rust
75 lines
2.3 KiB
Rust
/*
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Rust Arch Linux Updater
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Copyright (C) 2024 Luke Harding <luke@lukeh990.io>
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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.
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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.
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You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/*
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pacman_api.rs
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This module provides an api to make working with Pacman much easier.
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*/
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use std::{error, fmt};
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use std::fmt::Formatter;
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use std::path::Path;
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use crate::shell_commands;
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#[derive(Debug, Clone)]
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pub enum PacmanError {
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InsufficientPrivilege,
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NotInstalled,
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Other(String),
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}
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impl fmt::Display for PacmanError {
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fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
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let output = match self {
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PacmanError::InsufficientPrivilege => "Failed to run pacman. Maybe try sudo?",
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PacmanError::NotInstalled => "Unable to find pacman. Is this system arch based?",
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PacmanError::Other(msg) => msg,
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};
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write!(f, "{}", output)
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}
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}
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impl error::Error for PacmanError {}
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pub fn check() -> Result<(), PacmanError> {
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let out = match shell_commands::execute_quiet("which", ["pacman"]) {
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Ok(out) => out,
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Err(e) => return Err(PacmanError::Other(e.to_string())),
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};
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let path = if out.status.success() {
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let mut stdout = out.stdout;
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stdout.pop(); // Remove \n from stdout
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match String::from_utf8(stdout) {
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Ok(result) => result,
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Err(e) => return Err(PacmanError::Other(e.to_string())),
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}
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} else {
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String::from("/usr/bin/pacman")
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};
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let path = Path::new(&path);
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if !path.exists() {
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return Err(PacmanError::NotInstalled);
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}
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Ok(())
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}
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pub fn update_all() -> Result<(), PacmanError> {
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if let Err(e) = shell_commands::execute_in_sh("sudo pacman -Syu") {
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return Err(PacmanError::Other(e.to_string()));
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}
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Ok(())
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}
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