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Merge pull request #2152 from deantvv/link-clap

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link: replace getopts with clap
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Sylvestre Ledru 2021-05-02 09:33:11 +02:00 • committed by GitHub
commit 2d0f4daf5b
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3 changed files with 33 additions and 13 deletions
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1
Cargo.lock generated
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@ -2052,6 +2052,7 @@ dependencies = [
name = "uu_link" name = "uu_link"
version = "0.0.6" version = "0.0.6"
dependencies = [ dependencies = [
"clap",
"libc", "libc",
"uucore", "uucore",
"uucore_procs", "uucore_procs",

1
src/uu/link/Cargo.toml
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@ -18,6 +18,7 @@ path = "src/link.rs"
libc = "0.2.42" libc = "0.2.42"
uucore = { version=">=0.0.8", package="uucore", path="../../uucore" } uucore = { version=">=0.0.8", package="uucore", path="../../uucore" }
uucore_procs = { version=">=0.0.5", package="uucore_procs", path="../../uucore_procs" } uucore_procs = { version=">=0.0.5", package="uucore_procs", path="../../uucore_procs" }
clap = "2.33"
[[bin]] [[bin]]
name = "link" name = "link"

44
src/uu/link/src/link.rs
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@ -8,14 +8,21 @@
#[macro_use] #[macro_use]
extern crate uucore; extern crate uucore;
use clap::{App, Arg};
use std::fs::hard_link; use std::fs::hard_link;
use std::io::Error; use std::io::Error;
use std::path::Path; use std::path::Path;
use uucore::InvalidEncodingHandling;
static SYNTAX: &str = "[OPTIONS] FILE1 FILE2"; static VERSION: &str = env!("CARGO_PKG_VERSION");
static SUMMARY: &str = "Create a link named FILE2 to FILE1"; static ABOUT: &str = "Call the link function to create a link named FILE2 to an existing FILE1.";
static LONG_HELP: &str = "";
pub mod options {
pub static FILES: &str = "FILES";
}
fn get_usage() -> String {
format!("{0} FILE1 FILE2", executable!())
}
pub fn normalize_error_message(e: Error) -> String { pub fn normalize_error_message(e: Error) -> String {
match e.raw_os_error() { match e.raw_os_error() {
@ -25,16 +32,27 @@ pub fn normalize_error_message(e: Error) -> String {
} }
pub fn uumain(args: impl uucore::Args) -> i32 { pub fn uumain(args: impl uucore::Args) -> i32 {
let matches = app!(SYNTAX, SUMMARY, LONG_HELP).parse( let usage = get_usage();
args.collect_str(InvalidEncodingHandling::Ignore) let matches = App::new(executable!())
.accept_any(), .version(VERSION)
); .about(ABOUT)
if matches.free.len() != 2 { .usage(&usage[..])
crash!(1, "{}", msg_wrong_number_of_arguments!(2)); .arg(
} Arg::with_name(options::FILES)
.hidden(true)
.required(true)
.min_values(2)
.max_values(2)
.takes_value(true),
)
.get_matches_from(args);
let old = Path::new(&matches.free[0]); let files: Vec<_> = matches
let new = Path::new(&matches.free[1]); .values_of_os(options::FILES)
.unwrap_or_default()
.collect();
let old = Path::new(files[0]);
let new = Path::new(files[1]);
match hard_link(old, new) { match hard_link(old, new) {
Ok(_) => 0, Ok(_) => 0,