initial commit

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Rudis Muiznieks 2024-06-13 17:02:58 -05:00
commit 8fdd8176fa
Signed by: rudism
GPG key ID: CABF2F86EF7884F9
8 changed files with 762 additions and 0 deletions

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## System Information CLI
Simple CLI to retrieve CPU, memory, and disk usage details as percentages.
### CPU usage
Prints the total usage across all cores as a percentage, then the number of cores, then the usage of each core as a percentage.
```
> sicli cpu --delay-ms 250 --precision 1
1.2 16 0.0 3.8 0.0 0.0 0.0 0.0 0.0 4.0 0.0 0.0 0.0 7.4 3.8 0.0 0.0 0.0
```
### Hard drive usage
Prints the total usage as a percentage, the total disk size, then the total available space.
```
> sicli disk --root /home --unit tb --usage-precision 1 --size-precision 3
63.0 1.968 0.728
```
### Memory usage
Prints the total usage as a percentage, the total memory, then the available memory.
```
> sicli memory --unit gib --usage-precision 1 --size-precision 2
29.4 30.70 21.68
```
### Unicode icons
Passing `--include-icons` as the first argument will precede each usage value with a Unicode bar glyph as a visual approximation of the percentage.
```
> sicli -i disk -r /home -u tb -p 1 -z 3
▅ 63.0 1.968 0.728
> sicli --include-icons memory --unit gib --usage-precision 1 --size-precision 2
▂ 29.4 30.70 21.68
```

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src/cli_args.rs Normal file
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use clap::{Parser, Subcommand, ValueEnum};
#[derive(Debug, Parser)]
#[clap(name = "sicli", version)]
pub struct Cli {
/// Precede all percentage values with a matching unicode bar glyph
#[arg(short, long, default_value_t = false)]
pub include_icons: bool,
#[clap(subcommand)]
pub command: Command,
}
#[derive(Clone, Debug, ValueEnum)]
pub enum Unit {
Byte,
Kb,
Mb,
Gb,
Tb,
Kib,
Mib,
Gib,
Tib,
}
#[derive(Debug, Subcommand)]
pub enum Command {
/// Print CPU usage as a total percentage, followed by the number of CPUs, followed by
/// each individual CPU's usage as a percentage
Cpu {
/// Number of milliseconds to wait between checks when computing CPU usage
/// (larger values will be more accurate, but also result in a longer delay
/// before the output is printed)
#[arg(short, long, default_value_t = 200)]
delay_ms: u64,
/// Number of decimal points to round the usage percentages to
#[arg(short, long, default_value_t = 1)]
precision: usize,
},
/// Print memory usage as a total percentage, followed by the total memory,
/// followed by the available memory
Memory {
/// Print metrics for swap instead of RAM
#[arg(short, long, default_value_t = false)]
swap: bool,
/// Unit to use for total and available memory values
#[arg(value_enum, short, long, default_value_t = Unit::Gib)]
unit: Unit,
/// Number of decimal points to round the usage percentage to
#[arg(short = 'p', long, default_value_t = 1)]
usage_precision: usize,
/// Number of decimal points to round the total and available memory values to
/// (when not displaying bytes)
#[arg(short = 'z', long, default_value_t = 1)]
size_precision: usize,
},
/// Print disk usage as a total percentage, followed by the total disk size,
/// followed by the available space
Disk {
/// Path to the disk's mount point
#[arg(short, long, default_value = "/")]
root: String,
/// Unit to use for total size and available space values
#[arg(value_enum, short, long, default_value_t = Unit::Gb)]
unit: Unit,
/// Number of decimal points to round the usage percentage to
#[arg(short = 'p', long, default_value_t = 1)]
usage_precision: usize,
/// Number of decimal points to round the total size and available space values to
/// (when not displaying bytes)
#[arg(short = 'z', long, default_value_t = 1)]
size_precision: usize,
}
}

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mod cli_args;
mod stat_computers;
use clap::Parser;
use cli_args::{Cli, Command};
use stat_computers::{cpu, disk, memory};
fn main() {
let args = Cli::parse();
match args.command {
Command::Cpu { delay_ms, precision } =>
cpu(args.include_icons, delay_ms, precision),
Command::Memory { swap, unit, usage_precision, size_precision } =>
memory(args.include_icons, swap, unit, usage_precision, size_precision),
Command::Disk { root, unit, usage_precision, size_precision } =>
disk(args.include_icons, root, unit, usage_precision, size_precision),
};
}

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use sysinfo::{Disks, System};
use std::{thread, time};
use crate::cli_args::Unit;
fn unit_div(unit: &Unit) -> f64 {
return match unit {
Unit::Byte => 1.0,
Unit::Kb => 1000.0,
Unit::Mb => 1000.0 * 1000.0,
Unit::Gb => 1000.0 * 1000.0 * 1000.0,
Unit::Tb => 1000.0 * 1000.0 * 1000.0 * 1000.0,
Unit::Kib => 1024.0,
Unit::Mib => 1024.0 * 1024.0,
Unit::Gib => 1024.0 * 1024.0* 1024.0,
Unit::Tib => 1024.0 * 1024.0* 1024.0 * 1024.0,
};
}
fn get_icon(include_icons: bool, percent: f64) -> String {
return if !include_icons { "" }
else if percent > 87.5 { "" }
else if percent > 75.0 { "" }
else if percent > 62.5 { "" }
else if percent > 50.0 { "" }
else if percent > 37.5 { "" }
else if percent > 25.0 { "" }
else if percent > 12.5 { "" }
else { "" }.to_string();
}
pub fn cpu(
include_icons: bool,
delay_ms: u64,
precision: usize) {
let mut sys = System::new();
let duration = time::Duration::from_millis(delay_ms);
sys.refresh_cpu();
let cpu_count = sys.cpus().len();
sys.refresh_cpu_usage();
thread::sleep(duration);
sys.refresh_cpu_usage();
let mut total_usage = 0.0;
let mut core_usage: Vec<f32> = vec![];
for cpu in sys.cpus() {
let usage = cpu.cpu_usage();
core_usage.push(usage);
total_usage += usage;
}
let total_percent = total_usage as f64 / cpu_count as f64;
print!("{}{:.3$} {}",
get_icon(include_icons, total_percent), total_percent,
cpu_count,
precision);
for usage in core_usage {
let usage64 = usage as f64;
print!(" {}{:.2$}",
get_icon(include_icons, usage64), usage64,
precision);
}
println!();
}
pub fn memory(
include_icons: bool,
swap: bool,
unit: Unit,
usage_precision: usize,
size_precision: usize) {
let mut sys = System::new();
sys.refresh_memory();
let unit_div = unit_div(&unit);
let total = if swap { sys.total_swap() } else { sys.total_memory() } as f64 / unit_div;
let available = if swap { sys.free_swap() } else { sys.available_memory() } as f64 / unit_div;
let used = total - available;
let usage = used / total * 100.0;
let real_size_precision = if matches!(unit, Unit::Byte) { 0 } else { size_precision };
println!("{}{:.4$} {:.5$} {:.5$}",
get_icon(include_icons, usage), usage,
total, available, usage_precision, real_size_precision);
}
pub fn disk(
include_icons: bool,
root: String,
unit: Unit,
usage_precision: usize,
size_precision: usize) {
let disks = Disks::new_with_refreshed_list();
match disks.list().iter().find(|d| *d.mount_point().as_os_str() == *root) {
Some(disk) => {
let unit_dev = unit_div(&unit);
let total = disk.total_space() as f64 / unit_dev;
let available = disk.available_space() as f64 / unit_dev;
let used = total - available;
let usage = used / total * 100.0;
let real_size_precision = if matches!(unit, Unit::Byte) { 0 } else { size_precision };
println!("{}{:.4$} {:.5$} {:.5$}",
get_icon(include_icons, usage), usage,
total, available, usage_precision, real_size_precision);
},
None => {
eprintln!("Error: Could not find disk mounted at `{}`", root);
std::process::exit(1);
},
};
}