system/systeroid
system/systeroid
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style(args): add hidden aliases for arguments

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Orhun Parmaksız 2021-12-10 02:00:00 +03:00
parent a56d562f3d
commit ab8617fe28
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GPG key ID: F83424824B3E4B90
1 changed files with 15 additions and 5 deletions
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20
systeroid/src/args.rs
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@ -52,6 +52,7 @@ impl Args {
opts.optflag("N", "names", "print variable names without values");
opts.optflag("n", "values", "print only values of the given variable(s)");
opts.optflag("p", "load", "read values from file");
opts.optflag("f", "", "alias of -p");
opts.optopt(
"r",
"pattern",
@ -59,6 +60,7 @@ impl Args {
"<expression>",
);
opts.optflag("q", "quiet", "do not echo variable set");
opts.optflag("d", "", "alias of -h");
opts.optopt(
"E",
"explain",
@ -82,18 +84,26 @@ impl Args {
.map_err(|e| eprintln!("error: `{}`", e))
.ok()?;
let preload_files = matches.opt_present("p") || matches.opt_present("f");
let show_help = matches.opt_present("h") || matches.opt_present("d");
let required_args_present = matches.opt_present("a")
|| matches.opt_present("A")
|| matches.opt_present("X")
|| !matches.free.is_empty()
|| matches.opt_str("explain").is_some()
|| matches.opt_present("p");
|| preload_files;
if matches.opt_present("h") || env_args.len() == 1 {
if show_help || env_args.len() == 1 {
let usage = opts.usage_with_format(|opts| {
HELP_MESSAGE
.replace("{bin}", env!("CARGO_PKG_NAME"))
.replace("{usage}", &opts.collect::<Vec<String>>().join("\n"))
.replace(
"{usage}",
&opts
.filter(|msg| !msg.contains("alias of"))
.collect::<Vec<String>>()
.join("\n"),
)
});
println!("{}", usage);
None
@ -118,7 +128,7 @@ impl Args {
} else {
DisplayType::Default
};
if matches.opt_present("p") && matches.free.is_empty() {
if preload_files && matches.free.is_empty() {
matches.free = vec![DEFAULT_PRELOAD.to_string()];
}
Some(Args {
@ -128,7 +138,7 @@ impl Args {
display_type,
ignore_errors: matches.opt_present("e"),
no_pager: matches.opt_present("P"),
preload_files: matches.opt_present("p"),
preload_files,
pattern: matches
.opt_str("r")
.map(|v| Regex::new(&v).expect("invalid regex")),