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85 lines
2.7 KiB
Rust
85 lines
2.7 KiB
Rust
///! # rupsc
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///! A demo program to display UPS variables.
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///! This a Rust clone of [upsc](https://github.com/networkupstools/nut/blob/master/clients/upsc.c).
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///!
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///! P.S.: pronounced "r-oopsie".
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mod cmd;
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mod parser;
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use crate::parser::UpsdName;
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use anyhow::Context;
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use clap::{App, Arg};
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use core::convert::TryInto;
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fn main() -> anyhow::Result<()> {
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let args = App::new(clap::crate_name!())
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.version(clap::crate_version!())
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.author(clap::crate_authors!())
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.about(clap::crate_description!())
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.arg(
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Arg::with_name("list")
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.short("l")
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.conflicts_with_all(&["list-full", "clients"])
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.takes_value(false)
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.help("Lists each UPS on <hostname>, one per line."),
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)
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.arg(
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Arg::with_name("list-full")
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.short("L")
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.conflicts_with_all(&["list", "clients"])
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.takes_value(false)
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.help("Lists each UPS followed by its description (from ups.conf)."),
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)
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.arg(
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Arg::with_name("clients")
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.short("c")
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.conflicts_with_all(&["list", "list-full"])
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.takes_value(false)
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.help("Lists each client connected on <upsname>, one per line."),
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)
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.arg(
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Arg::with_name("debug")
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.short("D")
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.takes_value(false)
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.help("Enables debug mode (logs network commands to stderr)."),
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)
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.arg(
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Arg::with_name("upsd-server")
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.required(false)
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.value_name("[upsname][@<hostname>[:<port>]]")
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.help("upsd server (with optional upsname, if applicable)."),
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)
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.arg(
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Arg::with_name("variable")
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.required(false)
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.value_name("variable")
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.help("Optional, display this variable only."),
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)
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.get_matches();
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let server: parser::UpsdName = args.value_of("upsd-server").map_or_else(
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|| Ok(UpsdName::default()),
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|s| s.try_into().with_context(|| "Invalid upsd server name"),
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)?;
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let debug = args.is_present("debug");
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if args.is_present("list") {
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return cmd::list_devices(server, false, debug);
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}
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if args.is_present("list-full") {
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return cmd::list_devices(server, true, debug);
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}
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if args.is_present("clients") {
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return cmd::list_clients(server, debug);
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}
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// Fallback: prints one variable (or all of them)
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if let Some(variable) = args.value_of("variable") {
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cmd::print_variable(server, variable, debug)
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} else {
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cmd::list_variables(server, debug)
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}
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}
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