112 lines
4.1 KiB
Rust
112 lines
4.1 KiB
Rust
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use clap::{Arg, ArgAction, Command};
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fn main() {
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let matches = Command::new("pacman")
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.about("package manager utility")
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.version("5.2.1")
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.subcommand_required(true)
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.arg_required_else_help(true)
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.author("Pacman Development Team")
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// Query subcommand
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//
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// Only a few of its arguments are implemented below.
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.subcommand(
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Command::new("query")
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.short_flag('Q')
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.long_flag("query")
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.about("Query the package database.")
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.arg(
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Arg::new("search")
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.short('s')
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.long("search")
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.help("search locally installed packages for matching strings")
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.conflicts_with("info")
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.action(ArgAction::Set)
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.num_args(1..),
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)
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.arg(
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Arg::new("info")
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.long("info")
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.short('i')
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.conflicts_with("search")
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.help("view package information")
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.action(ArgAction::Set)
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.num_args(1..),
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),
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)
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// Sync subcommand
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//
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// Only a few of its arguments are implemented below.
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.subcommand(
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Command::new("sync")
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.short_flag('S')
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.long_flag("sync")
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.about("Synchronize packages.")
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.arg(
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Arg::new("search")
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.short('s')
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.long("search")
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.conflicts_with("info")
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.action(ArgAction::Set)
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.num_args(1..)
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.help("search remote repositories for matching strings"),
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)
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.arg(
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Arg::new("info")
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.long("info")
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.conflicts_with("search")
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.short('i')
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.action(ArgAction::SetTrue)
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.help("view package information"),
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)
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.arg(
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Arg::new("package")
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.help("packages")
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.required_unless_present("search")
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.action(ArgAction::Set)
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.num_args(1..),
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),
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)
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.get_matches();
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match matches.subcommand() {
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Some(("sync", sync_matches)) => {
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if sync_matches.contains_id("search") {
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let packages: Vec<_> = sync_matches
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.get_many::<String>("search")
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.expect("contains_id")
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.map(|s| s.as_str())
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.collect();
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let values = packages.join(", ");
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println!("Searching for {values}...");
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return;
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}
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let packages: Vec<_> = sync_matches
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.get_many::<String>("package")
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.expect("is present")
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.map(|s| s.as_str())
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.collect();
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let values = packages.join(", ");
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if sync_matches.get_flag("info") {
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println!("Retrieving info for {values}...");
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} else {
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println!("Installing {values}...");
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}
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}
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Some(("query", query_matches)) => {
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if let Some(packages) = query_matches.get_many::<String>("info") {
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let comma_sep = packages.map(|s| s.as_str()).collect::<Vec<_>>().join(", ");
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println!("Retrieving info for {comma_sep}...");
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} else if let Some(queries) = query_matches.get_many::<String>("search") {
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let comma_sep = queries.map(|s| s.as_str()).collect::<Vec<_>>().join(", ");
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println!("Searching Locally for {comma_sep}...");
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} else {
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println!("Displaying all locally installed packages...");
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}
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}
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_ => unreachable!(), // If all subcommands are defined above, anything else is unreachable
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}
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}
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