1 use clap::{Arg, ArgAction, Command};
2
main()3 fn main() {
4 let matches = Command::new("pacman")
5 .about("package manager utility")
6 .version("5.2.1")
7 .subcommand_required(true)
8 .arg_required_else_help(true)
9 // Query subcommand
10 //
11 // Only a few of its arguments are implemented below.
12 .subcommand(
13 Command::new("query")
14 .short_flag('Q')
15 .long_flag("query")
16 .about("Query the package database.")
17 .arg(
18 Arg::new("search")
19 .short('s')
20 .long("search")
21 .help("search locally installed packages for matching strings")
22 .conflicts_with("info")
23 .action(ArgAction::Set)
24 .num_args(1..),
25 )
26 .arg(
27 Arg::new("info")
28 .long("info")
29 .short('i')
30 .conflicts_with("search")
31 .help("view package information")
32 .action(ArgAction::Set)
33 .num_args(1..),
34 ),
35 )
36 // Sync subcommand
37 //
38 // Only a few of its arguments are implemented below.
39 .subcommand(
40 Command::new("sync")
41 .short_flag('S')
42 .long_flag("sync")
43 .about("Synchronize packages.")
44 .arg(
45 Arg::new("search")
46 .short('s')
47 .long("search")
48 .conflicts_with("info")
49 .action(ArgAction::Set)
50 .num_args(1..)
51 .help("search remote repositories for matching strings"),
52 )
53 .arg(
54 Arg::new("info")
55 .long("info")
56 .conflicts_with("search")
57 .short('i')
58 .action(ArgAction::SetTrue)
59 .help("view package information"),
60 )
61 .arg(
62 Arg::new("package")
63 .help("packages")
64 .required_unless_present("search")
65 .action(ArgAction::Set)
66 .num_args(1..),
67 ),
68 )
69 .get_matches();
70
71 match matches.subcommand() {
72 Some(("sync", sync_matches)) => {
73 if sync_matches.contains_id("search") {
74 let packages: Vec<_> = sync_matches
75 .get_many::<String>("search")
76 .expect("contains_id")
77 .map(|s| s.as_str())
78 .collect();
79 let values = packages.join(", ");
80 println!("Searching for {values}...");
81 return;
82 }
83
84 let packages: Vec<_> = sync_matches
85 .get_many::<String>("package")
86 .expect("is present")
87 .map(|s| s.as_str())
88 .collect();
89 let values = packages.join(", ");
90
91 if sync_matches.get_flag("info") {
92 println!("Retrieving info for {values}...");
93 } else {
94 println!("Installing {values}...");
95 }
96 }
97 Some(("query", query_matches)) => {
98 if let Some(packages) = query_matches.get_many::<String>("info") {
99 let comma_sep = packages.map(|s| s.as_str()).collect::<Vec<_>>().join(", ");
100 println!("Retrieving info for {comma_sep}...");
101 } else if let Some(queries) = query_matches.get_many::<String>("search") {
102 let comma_sep = queries.map(|s| s.as_str()).collect::<Vec<_>>().join(", ");
103 println!("Searching Locally for {comma_sep}...");
104 } else {
105 println!("Displaying all locally installed packages...");
106 }
107 }
108 _ => unreachable!(), // If all subcommands are defined above, anything else is unreachable
109 }
110 }
111