refactor: project structure (#9)
Split up project into multiple crates and use a Cargo workspace.
This commit is contained in:
Markus Zehnder
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[package]
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name = "sysinfo"
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version = "0.1.0"
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description = "System sensor provider for asterctl"
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rust-version.workspace = true
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edition.workspace = true
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authors.workspace = true
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license.workspace = true
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repository.workspace = true
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[dependencies]
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clap = { version = "4.5.42", features = ["derive"] }
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sysinfo = "0.37.0"
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itertools = "0.14"
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tempfile = "3"
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log = "0.4.27"
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env_logger = "0.11.8"
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regex = "1.11"
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Symlink
+1
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../../LICENSE-APACHE
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Symlink
+1
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../../LICENSE-MIT
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@@ -0,0 +1,47 @@
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# System Sensor Provider for asterctl
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This tool gathers system sensor values with the help of the [sysinfo](https://github.com/GuillaumeGomez/sysinfo) crate
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and writes them into a text file.
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See [README](../../README.md) in root directory for more information.
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```
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Proof of concept sensor value collection for the asterctl screen control tool
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Usage: sysinfo [OPTIONS]
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Options:
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-o, --out <OUT>
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Output sensor file
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-t, --temp-dir <TEMP_DIR>
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Temporary directory for preparing the output sensor file.
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The system temp directory is used if not specified.
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The temp directory must be on the same file system for atomic rename operation!
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--console
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Print values in console
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-r, --refresh <REFRESH>
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System sensor refresh interval in seconds
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--disk-refresh <DISK_REFRESH>
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Enable individual disk refresh logic as used in AOOSTAR-X. Refresh interval in seconds
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--smartctl
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Retrieve drive temperature if `disk-update` option is enabled.
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Requires smartctl and password-less sudo!
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```
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Single test run with printing all sensors in the console:
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```shell
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sysinfo --console
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```
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Normal mode providing sensor values for `asterctl` in `/tmp/sensors/sysinfo.txt` every 3 seconds:
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```shell
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sysinfo --refresh 3 --out /tmp/sensors/sysinfo.txt
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```
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@@ -0,0 +1,768 @@
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// SPDX-License-Identifier: MIT OR Apache-2.0
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// SPDX-FileCopyrightText: Copyright (c) 2025 Markus Zehnder
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#![forbid(non_ascii_idents)]
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#![deny(unsafe_code)]
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use clap::Parser;
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use env_logger::Env;
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use itertools::Itertools;
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use log::{debug, error, info};
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use regex::Regex;
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use std::cmp::PartialEq;
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use std::collections::HashMap;
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use std::fmt::Display;
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use std::fs;
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use std::io::{BufWriter, Write};
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use std::path::{Path, PathBuf};
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use std::process::{Command, exit};
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use std::thread::sleep;
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use std::time::{Duration, Instant};
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use sysinfo::{Components, DiskKind, Disks, Networks, System};
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use tempfile::NamedTempFile;
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/// Proof of concept sensor value collection for the asterctl screen control tool.
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#[derive(Parser, Debug)]
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#[command(version, about, long_about = None)]
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struct Args {
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/// Output sensor file.
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#[arg(short, long)]
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out: Option<PathBuf>,
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/// Temporary directory for preparing the output sensor file.
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///
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/// The system temp directory is used if not specified.
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/// The temp directory must be on the same file system for atomic rename operation!
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#[arg(short, long)]
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temp_dir: Option<PathBuf>,
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/// Print values in console
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#[arg(long)]
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console: bool,
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/// System sensor refresh interval in seconds
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#[arg(short, long)]
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refresh: Option<u16>,
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/// Enable individual disk refresh logic as used in AOOSTAR-X. Refresh interval in seconds.
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#[arg(long)]
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disk_refresh: Option<u16>,
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/// Retrieve drive temperature if `disk-update` option is enabled.
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///
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/// Requires smartctl and password-less sudo!
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#[cfg(target_os = "linux")]
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#[arg(long)]
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smartctl: bool,
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}
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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env_logger::Builder::from_env(Env::default().default_filter_or("info")).init();
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let args = Args::parse();
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#[cfg(target_os = "linux")]
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let use_smartctl = args.smartctl;
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#[cfg(not(target_os = "linux"))]
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let use_smartctl = false;
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let mut sensors = HashMap::with_capacity(64);
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let mut sysinfo_source = SysinfoSource::new();
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let refresh = Duration::from_secs(args.refresh.unwrap_or_default() as u64);
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let disk_refresh = Duration::from_secs(args.disk_refresh.unwrap_or_default() as u64);
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let mut disk_refresh_time = Instant::now();
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if !disk_refresh.is_zero() {
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update_linux_storage_sensors(&mut sensors, use_smartctl)?;
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}
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loop {
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let upd_start_time = Instant::now();
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sysinfo_source.refresh();
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sysinfo_source.update_sensors(&mut sensors)?;
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if !disk_refresh.is_zero() && disk_refresh_time.elapsed() > disk_refresh {
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info!("Refreshing individual disks");
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update_linux_storage_sensors(&mut sensors, use_smartctl)?;
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disk_refresh_time = Instant::now();
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}
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if let Some(out_file) = &args.out {
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write_sensor_file(out_file, args.temp_dir.as_deref(), &sensors)?;
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}
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if args.console {
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// pretty print console output with sorted keys
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for (label, value) in sensors.iter().sorted() {
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println!("{}: {}", label, value);
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}
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println!();
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}
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if refresh.is_zero() {
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break;
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}
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let elapsed = upd_start_time.elapsed();
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if refresh > elapsed {
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sleep(refresh - elapsed);
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}
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}
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Ok(())
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}
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fn write_sensor_file(
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out_file: &Path,
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temp_dir: Option<&Path>,
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sensors: &HashMap<String, String>,
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) -> Result<(), Box<dyn std::error::Error>> {
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if out_file.is_dir() {
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error!("Output cannot be a directory: {}", out_file.display());
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exit(1);
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}
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let tmp_file = if let Some(temp_path) = temp_dir {
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fs::create_dir_all(temp_path)?;
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NamedTempFile::new_in(temp_path)?
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} else {
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NamedTempFile::new()?
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};
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let mut stream = BufWriter::new(&tmp_file);
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for (label, value) in sensors.iter() {
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writeln!(stream, "{label}: {value}")?;
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}
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stream.flush()?;
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drop(stream);
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tmp_file.persist(out_file)?;
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Ok(())
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}
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pub struct SysinfoSource {
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sys: System,
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disks: Disks,
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components: Components,
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networks: Networks,
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last_refresh: Option<Instant>,
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refresh_duration: Option<Duration>,
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}
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impl Default for SysinfoSource {
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fn default() -> Self {
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Self::new()
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}
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}
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impl SysinfoSource {
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pub fn new() -> Self {
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Self {
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sys: System::new_all(),
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disks: Disks::new(),
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components: Components::new(),
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networks: Networks::new(),
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last_refresh: None,
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refresh_duration: None,
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}
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}
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pub fn refresh(&mut self) {
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self.sys.refresh_all();
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// TODO research "remove_not_listed_###" refresh parameter
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self.disks.refresh(false);
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self.components.refresh(false);
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self.networks.refresh(false);
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if let Some(last_refresh) = self.last_refresh {
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self.refresh_duration = Some(last_refresh.elapsed());
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}
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self.last_refresh = Some(Instant::now());
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}
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fn update_sensors(
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&self,
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sensors: &mut HashMap<String, String>,
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) -> Result<(), Box<dyn std::error::Error>> {
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for cpu in self.sys.cpus() {
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add_sensor(
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sensors,
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format!("cpu_{}_frequency", cpu.name()),
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cpu.frequency(),
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);
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add_sensor(
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sensors,
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format!("cpu_{}_usage", cpu.name()),
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format!("{:.2}", cpu.cpu_usage()),
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);
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}
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let load_avg = System::load_average();
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add_sensor(sensors, "load_avg_one", format!("{:.2}", load_avg.one));
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add_sensor(sensors, "load_avg_five", format!("{:.2}", load_avg.five));
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add_sensor(
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sensors,
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"load_avg_fifteen",
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format!("{:.2}", load_avg.fifteen),
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);
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// RAM and swap information:
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add_sensor(sensors, "mem_free_bytes", self.sys.free_memory());
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add_sensor(sensors, "mem_free", format_bytes(self.sys.free_memory()));
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add_sensor(sensors, "mem_total_bytes", self.sys.total_memory());
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add_sensor(sensors, "mem_total", format_bytes(self.sys.total_memory()));
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add_sensor(sensors, "mem_used_bytes", self.sys.used_memory());
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add_sensor(sensors, "mem_used", format_bytes(self.sys.used_memory()));
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add_sensor(
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sensors,
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"mem_usage_percent",
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format!(
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"{:.1}",
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(self.sys.used_memory() * 100) as f64 / self.sys.total_memory() as f64
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),
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);
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add_sensor(sensors, "swap_free_bytes", self.sys.free_swap());
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add_sensor(sensors, "swap_free", format_bytes(self.sys.free_swap()));
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add_sensor(sensors, "swap_total_bytes", self.sys.total_swap());
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add_sensor(sensors, "swap_total", format_bytes(self.sys.total_swap()));
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add_sensor(sensors, "swap_used_bytes", self.sys.used_swap());
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add_sensor(sensors, "swap_used", format_bytes(self.sys.used_swap()));
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add_sensor(
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sensors,
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"swap_usage_percent",
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format!(
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"{:.1}",
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(self.sys.used_swap() * 100) as f64 / self.sys.total_swap() as f64
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),
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);
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// System information:
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if let Some(name) = System::name() {
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add_sensor(sensors, "system_name", name);
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}
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if let Some(kernel_version) = System::kernel_version() {
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add_sensor(sensors, "system_kernel_version", kernel_version);
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}
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if let Some(os_version) = System::os_version() {
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add_sensor(sensors, "system_os_version", os_version);
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}
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if let Some(host_name) = System::host_name() {
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add_sensor(sensors, "system_hostname", host_name);
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}
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add_sensor(sensors, "cpu_count", self.sys.cpus().len());
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add_sensor(sensors, "total_processes", self.sys.processes().len());
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// disks' information:
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let mut ssd_idx = 0;
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let mut hdd_idx = 0;
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for disk in &self.disks {
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let label;
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match disk.kind() {
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DiskKind::SSD => {
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label = format!("storage_ssd[{}]", ssd_idx);
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ssd_idx += 1;
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}
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DiskKind::HDD => {
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label = format!("storage_hdd[{}]", hdd_idx);
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hdd_idx += 1;
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}
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_ => continue,
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}
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// special label for AOOSTAR-X system panel
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add_sensor(
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sensors,
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format!("{label}_usage_percent"),
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(disk.total_space() - disk.available_space()) * 100 / disk.total_space(),
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);
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// using similar labels as AOOSTAR-X, but combining `{label2}_{label}`
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let device = disk.name().to_string_lossy().replace(' ', "_");
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add_sensor(
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sensors,
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format!("disk_{device}_total_bytes"),
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disk.total_space(),
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);
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add_sensor(
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sensors,
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format!("disk_{device}_total"),
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format_bytes(disk.total_space()),
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);
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let used = disk.total_space() - disk.available_space();
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add_sensor(sensors, format!("disk_{device}_used_bytes"), used);
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add_sensor(sensors, format!("disk_{device}_used"), format_bytes(used));
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add_sensor(
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sensors,
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format!("disk_{device}_free_bytes"),
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disk.available_space(),
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);
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add_sensor(
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sensors,
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format!("disk_{device}_free"),
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format_bytes(disk.available_space()),
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);
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add_sensor(
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sensors,
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format!("disk_{device}_usage_percent"),
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format!(
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"{:.1}",
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(disk.total_space() - disk.available_space()) as f64 * 100.0
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/ disk.total_space() as f64
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),
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);
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}
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// Components temperature:
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for component in &self.components {
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if let Some(temperature) = component.temperature() {
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let label;
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if component.label().contains("spd5118") {
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label = "temperature_memory".to_string();
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} else if component.label().contains("amdgpu") {
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label = "temperature_gpu".to_string();
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} else if component.label().contains("Tctl") {
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label = "temperature_cpu".to_string();
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} else if component.label().contains("Composite")
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&& !component.label().contains("nvme")
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{
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// just a guess...
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label = "temperature_motherboard".to_string();
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} else {
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label = format!("temperature_{}", component.label().replace(' ', "_"));
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// println!("label={}, type_id={:?}, id={:?}, {component:?}",
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// component.label(), component.type_id(), component.id());
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}
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// TODO add unit as a separate sensor?
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add_sensor(sensors, label, format!("{temperature:.1} °C"));
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}
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}
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// Network interfaces name, total data received and total data transmitted:
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for (interface_name, data) in &self.networks {
|
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// only consider specific interfaces
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let if_name = interface_name.to_lowercase();
|
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if !["eth", "en", "em", "wlan", "wlp", "wlo"]
|
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.iter()
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.any(|i| if_name.starts_with(*i))
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{
|
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continue;
|
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}
|
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// Sort by address to avoid random order in refreshes
|
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for (idx, addr) in data
|
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.ip_networks()
|
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.iter()
|
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.map(|net| net.addr)
|
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.sorted()
|
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.enumerate()
|
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{
|
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add_sensor(
|
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sensors,
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format!("network_{interface_name}_address{idx}"),
|
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addr,
|
||||
);
|
||||
}
|
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|
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if let Some(refresh) = self.refresh_duration {
|
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let interval = refresh.as_millis() as u64;
|
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if interval > 0 {
|
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add_sensor(
|
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sensors,
|
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format!("network_{interface_name}_download_speed"),
|
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format!("{}/s", format_bytes(1000 * data.received() / interval)),
|
||||
);
|
||||
add_sensor(
|
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sensors,
|
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format!("network_{interface_name}_upload_speed"),
|
||||
format!("{}/s", format_bytes(1000 * data.transmitted() / interval)),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("network_{interface_name}_total_received_bytes"),
|
||||
data.total_received(),
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("network_{interface_name}_total_received"),
|
||||
format_bytes(data.total_received()),
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("network_{interface_name}_total_transmitted_bytes"),
|
||||
data.total_transmitted(),
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("network_{interface_name}_total_transmitted"),
|
||||
format_bytes(data.total_transmitted()),
|
||||
);
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
fn add_sensor(
|
||||
sensors: &mut HashMap<String, String>,
|
||||
label: impl Into<String>,
|
||||
value: impl Display,
|
||||
) {
|
||||
sensors.insert(label.into(), value.to_string());
|
||||
}
|
||||
|
||||
fn update_linux_storage_sensors(
|
||||
sensors: &mut HashMap<String, String>,
|
||||
use_smartctl: bool,
|
||||
) -> Result<(), Box<dyn std::error::Error>> {
|
||||
// Note: AOOSTAR-X only considered spinning Rust. Too bad if you're using SSDs in the HD bays...
|
||||
if let Ok(hdd_devices) = get_storage_devices(StorageDevice::HddOrSsd) {
|
||||
debug!("HDD devices : {:?}", hdd_devices);
|
||||
for (idx, device) in hdd_devices.iter().enumerate() {
|
||||
let usage = get_disk_usage(device)?;
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_hdd[{idx}]_total_size_bytes"),
|
||||
usage.total_size,
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_hdd[{idx}]_total_size"),
|
||||
format_bytes(usage.total_size),
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_hdd[{idx}]_total_used_bytes"),
|
||||
usage.total_used,
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_hdd[{idx}]_total_used"),
|
||||
format_bytes(usage.total_used),
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_hdd[{idx}]_usage_percent"),
|
||||
usage.usage_percent,
|
||||
);
|
||||
|
||||
if use_smartctl && let Some(temperature) = get_smartctl_disk_temperature(device)? {
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_hdd[{idx}]_temperature"),
|
||||
temperature,
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// AOOSTAR-X: ssd == nvme
|
||||
if let Ok(nvme_devices) = get_storage_devices(StorageDevice::Nvme) {
|
||||
debug!("NVME devices: {:?}", nvme_devices);
|
||||
for (idx, device) in nvme_devices.iter().enumerate() {
|
||||
let usage = get_disk_usage(device)?;
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_ssd[{idx}]_total_size_bytes"),
|
||||
usage.total_size,
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_ssd[{idx}]_total_size"),
|
||||
format_bytes(usage.total_size),
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_ssd[{idx}]_total_used_bytes"),
|
||||
usage.total_used,
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_ssd[{idx}]_total_used"),
|
||||
format_bytes(usage.total_used),
|
||||
);
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_ssd[{idx}]_usage_percent"),
|
||||
usage.usage_percent,
|
||||
);
|
||||
|
||||
if use_smartctl && let Some(temperature) = get_smartctl_disk_temperature(device)? {
|
||||
add_sensor(
|
||||
sensors,
|
||||
format!("storage_ssd[{idx}]_temperature"),
|
||||
temperature,
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct DiskInfo {
|
||||
pub device: String,
|
||||
pub temperature: i32,
|
||||
pub used: f64,
|
||||
pub total_used: u64,
|
||||
pub total_size: u64,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct DiskUsage {
|
||||
pub usage_percent: f64,
|
||||
pub total_used: u64,
|
||||
pub total_size: u64,
|
||||
}
|
||||
|
||||
#[derive(Debug, PartialEq)]
|
||||
pub enum StorageDevice {
|
||||
All,
|
||||
Hdd,
|
||||
Ssd,
|
||||
HddOrSsd,
|
||||
Nvme,
|
||||
}
|
||||
|
||||
pub type DiskResult = Result<Vec<DiskInfo>, Box<dyn std::error::Error>>;
|
||||
|
||||
/// Get storage devices of the given type: NVME, SSD or HD
|
||||
///
|
||||
/// Storage devices are identified from /sys/block attributes.
|
||||
/// Removable devices are excluded.
|
||||
///
|
||||
/// # Arguments
|
||||
///
|
||||
/// * `kind`: type of storage device
|
||||
///
|
||||
/// returns: sorted list of found device names (`sd*` and `nvme*`)
|
||||
pub fn get_storage_devices(kind: StorageDevice) -> Result<Vec<String>, Box<dyn std::error::Error>> {
|
||||
let mut devices = Vec::new();
|
||||
let sys_block = Path::new("/sys/block");
|
||||
|
||||
if !sys_block.exists() {
|
||||
info!("No storage device found");
|
||||
return Ok(devices);
|
||||
}
|
||||
|
||||
let device_regex = Regex::new(r"^sd[a-z]+$")?;
|
||||
let nvme_regex = Regex::new(r"^nvme[0-9]+n[0-9]+$")?;
|
||||
|
||||
for entry in fs::read_dir(sys_block)? {
|
||||
let entry = entry?;
|
||||
let dev_name = entry.file_name();
|
||||
let dev_str = dev_name.to_string_lossy();
|
||||
|
||||
// filter out all non sd* and nvme* devices
|
||||
let is_nvme = nvme_regex.is_match(&dev_str);
|
||||
let is_storage = device_regex.is_match(&dev_str);
|
||||
if !(is_nvme || is_storage) {
|
||||
continue;
|
||||
}
|
||||
|
||||
match kind {
|
||||
StorageDevice::All => {}
|
||||
StorageDevice::Hdd | StorageDevice::Ssd | StorageDevice::HddOrSsd => {
|
||||
if !is_storage {
|
||||
continue;
|
||||
}
|
||||
}
|
||||
StorageDevice::Nvme => {
|
||||
if !is_nvme {
|
||||
continue;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
if is_nvme {
|
||||
let dev_name = entry.file_name();
|
||||
let dev_str = dev_name.to_string_lossy();
|
||||
devices.push(dev_str.to_string());
|
||||
continue;
|
||||
}
|
||||
|
||||
let rotational_path = sys_block.join(dev_str.as_ref()).join("queue/rotational");
|
||||
let removable_path = sys_block.join(dev_str.as_ref()).join("removable");
|
||||
|
||||
match (
|
||||
fs::read_to_string(&rotational_path),
|
||||
fs::read_to_string(&removable_path),
|
||||
) {
|
||||
(Ok(rotational), Ok(removable)) => {
|
||||
let rotational = rotational.trim();
|
||||
let removable = removable.trim();
|
||||
|
||||
// ignore removable
|
||||
if removable == "1" {
|
||||
continue;
|
||||
}
|
||||
|
||||
if kind == StorageDevice::Hdd && rotational == "1"
|
||||
|| kind == StorageDevice::Ssd && rotational == "0"
|
||||
|| kind == StorageDevice::HddOrSsd
|
||||
{
|
||||
devices.push(dev_str.to_string());
|
||||
}
|
||||
}
|
||||
(Err(e), _) | (_, Err(e)) => {
|
||||
error!("Unable to read device {dev_str} attributes: {e}");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
devices.sort();
|
||||
Ok(devices)
|
||||
}
|
||||
|
||||
/// Retrieve temperature from NVMe or SDD/HDD with smartctl
|
||||
pub fn get_smartctl_disk_temperature(dev: &str) -> Result<Option<i32>, Box<dyn std::error::Error>> {
|
||||
let temp_regex =
|
||||
Regex::new(r"194\s+Temperature_Celsius\s+\S+\s+\S+\s+\S+\s+\S+\s+\S+\s+\S+\s+-\s+(\d+)")?;
|
||||
let nvme_temp_regex = Regex::new(r"Temperature:\s+(\d+)\s")?;
|
||||
|
||||
let dev = format!("/dev/{}", dev);
|
||||
match Command::new("sudo")
|
||||
.arg("-n")
|
||||
.arg("smartctl")
|
||||
.arg("-A")
|
||||
.arg(&dev)
|
||||
.output()
|
||||
{
|
||||
Ok(output) => {
|
||||
let stdout = String::from_utf8_lossy(&output.stdout);
|
||||
|
||||
if let Some(temp_captures) = temp_regex
|
||||
.captures(&stdout)
|
||||
.or_else(|| nvme_temp_regex.captures(&stdout))
|
||||
&& let Some(temp_match) = temp_captures.get(1)
|
||||
{
|
||||
let temperature = temp_match.as_str().parse::<i32>()?;
|
||||
return Ok(Some(temperature));
|
||||
}
|
||||
}
|
||||
Err(e) => {
|
||||
error!("Device {dev} acquisition failed, error: {e}");
|
||||
}
|
||||
}
|
||||
|
||||
Ok(None)
|
||||
}
|
||||
|
||||
/// Calculate actual filesystem usage rate of hard disk (based on df command)
|
||||
pub fn get_disk_usage(dev: &str) -> Result<DiskUsage, Box<dyn std::error::Error>> {
|
||||
let mut tmp = DiskUsage {
|
||||
usage_percent: 0.0,
|
||||
total_used: 0,
|
||||
total_size: 0,
|
||||
};
|
||||
|
||||
// Get mounted partitions for this device
|
||||
let cmd = format!(
|
||||
"df -h --output=source,target,pcent | grep '/dev/{}[0-9]*'",
|
||||
dev
|
||||
);
|
||||
|
||||
match Command::new("sh").arg("-c").arg(&cmd).output() {
|
||||
Ok(output) => {
|
||||
if !output.status.success() {
|
||||
return Ok(tmp);
|
||||
}
|
||||
|
||||
let stdout = String::from_utf8_lossy(&output.stdout);
|
||||
let mut total_used: u64 = 0;
|
||||
let mut total_size: u64 = 0;
|
||||
|
||||
for line in stdout.lines() {
|
||||
let line = line.trim();
|
||||
if line.is_empty() {
|
||||
continue;
|
||||
}
|
||||
|
||||
let parts: Vec<&str> = line.split_whitespace().collect();
|
||||
if parts.len() < 3 {
|
||||
continue;
|
||||
}
|
||||
|
||||
let mountpoint = parts[1];
|
||||
|
||||
// Get size in bytes
|
||||
let size_cmd = format!(
|
||||
"df --block-size=1 {} | awk 'NR==2 {{print $2}}'",
|
||||
mountpoint
|
||||
);
|
||||
if let Ok(size_output) = Command::new("sh").arg("-c").arg(&size_cmd).output()
|
||||
&& let Ok(size_str) = String::from_utf8(size_output.stdout)
|
||||
&& let Ok(size) = size_str.trim().parse::<u64>()
|
||||
{
|
||||
total_size += size;
|
||||
}
|
||||
|
||||
// Get used space in bytes
|
||||
let used_cmd = format!(
|
||||
"df --block-size=1 {} | awk 'NR==2 {{print $3}}'",
|
||||
mountpoint
|
||||
);
|
||||
if let Ok(used_output) = Command::new("sh").arg("-c").arg(&used_cmd).output()
|
||||
&& let Ok(used_str) = String::from_utf8(used_output.stdout)
|
||||
&& let Ok(used) = used_str.trim().parse::<u64>()
|
||||
{
|
||||
total_used += used;
|
||||
}
|
||||
}
|
||||
|
||||
if total_size != 0 {
|
||||
tmp.usage_percent =
|
||||
((total_used as f64 / total_size as f64) * 100.0 * 100.0).round() / 100.0;
|
||||
tmp.total_used = total_used;
|
||||
tmp.total_size = total_size;
|
||||
}
|
||||
|
||||
Ok(tmp)
|
||||
}
|
||||
Err(_) => Ok(tmp),
|
||||
}
|
||||
}
|
||||
|
||||
/// Format bytes into human-readable string
|
||||
pub fn format_bytes(bytes: u64) -> String {
|
||||
const UNITS: &[&str] = &["B", "KB", "MB", "GB", "TB", "PB"];
|
||||
const THRESHOLD: f64 = 1024.0;
|
||||
|
||||
if bytes == 0 {
|
||||
return "0 B".to_string();
|
||||
}
|
||||
|
||||
let mut size = bytes as f64;
|
||||
let mut unit_index = 0;
|
||||
|
||||
while size >= THRESHOLD && unit_index < UNITS.len() - 1 {
|
||||
size /= THRESHOLD;
|
||||
unit_index += 1;
|
||||
}
|
||||
|
||||
if unit_index > 0 {
|
||||
format!("{:.2} {}", size, UNITS[unit_index])
|
||||
} else {
|
||||
format!("{} {}", size, UNITS[unit_index])
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn test_format_bytes() {
|
||||
assert_eq!(format_bytes(0), "0 B");
|
||||
assert_eq!(format_bytes(1024), "1.00 KB");
|
||||
assert_eq!(format_bytes(1048576), "1.00 MB");
|
||||
assert_eq!(format_bytes(1073741824), "1.00 GB");
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user