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paste: move from getopts to clap

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closes #1734
This commit is contained in:
Ali Shariat 2021-03-09 12:46:27 -08:00
parent 5996bc340c
commit 54eebebff8
2 changed files with 43 additions and 45 deletions
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2
src/uu/paste/Cargo.toml
View file

@ -15,7 +15,7 @@ edition = "2018"
path = "src/paste.rs"
[dependencies]
getopts = "0.2.18"
clap = "2.33.3"
uucore = { version=">=0.0.7", package="uucore", path="../../uucore" }
uucore_procs = { version=">=0.0.5", package="uucore_procs", path="../../uucore_procs" }

86
src/uu/paste/src/paste.rs
View file

@ -10,59 +10,57 @@
#[macro_use]
extern crate uucore;
use clap::{App, Arg};
use std::fs::File;
use std::io::{stdin, BufRead, BufReader, Read};
use std::iter::repeat;
use std::path::Path;
static NAME: &str = "paste";
static VERSION: &str = env!("CARGO_PKG_VERSION");
static ABOUT: &str = "Write lines consisting of the sequentially corresponding lines from each
FILE, separated by TABs, to standard output.";
mod options {
pub const DELIMITER: &str = "delimiters";
pub const SERIAL: &str = "serial";
pub const FILE: &str = "file";
}
pub fn uumain(args: impl uucore::Args) -> i32 {
let args = args.collect_str();
let matches = App::new(executable!())
.version(VERSION)
.about(ABOUT)
.arg(
Arg::with_name(options::SERIAL)
.long(options::SERIAL)
.short("s")
.help("paste one file at a time instead of in parallel"),
)
.arg(
Arg::with_name(options::DELIMITER)
.long(options::DELIMITER)
.short("d")
.help("reuse characters from LIST instead of TABs")
.value_name("LIST")
.default_value("\t")
.hide_default_value(true),
)
.arg(
Arg::with_name(options::FILE)
.value_name("FILE")
.multiple(true)
.required(true),
)
.get_matches_from(args);
let mut opts = getopts::Options::new();
opts.optflag(
"s",
"serial",
"paste one file at a time instead of in parallel",
);
opts.optopt(
"d",
"delimiters",
"reuse characters from LIST instead of TABs",
"LIST",
);
opts.optflag("h", "help", "display this help and exit");
opts.optflag("V", "version", "output version information and exit");
let matches = match opts.parse(&args[1..]) {
Ok(m) => m,
Err(e) => crash!(1, "{}", e),
};
if matches.opt_present("help") {
let msg = format!(
"{0} {1}
Usage:
{0} [OPTION]... [FILE]...
Write lines consisting of the sequentially corresponding lines from each
FILE, separated by TABs, to standard output.",
NAME, VERSION
);
print!("{}", opts.usage(&msg));
} else if matches.opt_present("version") {
println!("{} {}", NAME, VERSION);
} else {
let serial = matches.opt_present("serial");
let delimiters = matches
.opt_str("delimiters")
.unwrap_or_else(|| "\t".to_owned());
paste(matches.free, serial, delimiters);
}
let serial = matches.is_present(options::SERIAL);
let delimiters = matches.value_of(options::DELIMITER).unwrap().to_owned();
let files = matches
.values_of(options::FILE)
.unwrap()
.map(|s| s.to_owned())
.collect();
paste(files, serial, delimiters);
0
}