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https://github.com/orhun/systeroid
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style(args): add hidden aliases for arguments
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@ -52,6 +52,7 @@ impl Args {
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opts.optflag("N", "names", "print variable names without values");
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opts.optflag("n", "values", "print only values of the given variable(s)");
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opts.optflag("p", "load", "read values from file");
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opts.optflag("f", "", "alias of -p");
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opts.optopt(
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"r",
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"pattern",
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@ -59,6 +60,7 @@ impl Args {
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"<expression>",
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);
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opts.optflag("q", "quiet", "do not echo variable set");
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opts.optflag("d", "", "alias of -h");
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opts.optopt(
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"E",
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"explain",
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@ -82,18 +84,26 @@ impl Args {
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.map_err(|e| eprintln!("error: `{}`", e))
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.ok()?;
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let preload_files = matches.opt_present("p") || matches.opt_present("f");
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let show_help = matches.opt_present("h") || matches.opt_present("d");
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let required_args_present = matches.opt_present("a")
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|| matches.opt_present("A")
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|| matches.opt_present("X")
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|| !matches.free.is_empty()
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|| matches.opt_str("explain").is_some()
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|| matches.opt_present("p");
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|| preload_files;
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if matches.opt_present("h") || env_args.len() == 1 {
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if show_help || env_args.len() == 1 {
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let usage = opts.usage_with_format(|opts| {
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HELP_MESSAGE
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.replace("{bin}", env!("CARGO_PKG_NAME"))
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.replace("{usage}", &opts.collect::<Vec<String>>().join("\n"))
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.replace(
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"{usage}",
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&opts
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.filter(|msg| !msg.contains("alias of"))
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.collect::<Vec<String>>()
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.join("\n"),
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)
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});
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println!("{}", usage);
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None
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@ -118,7 +128,7 @@ impl Args {
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} else {
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DisplayType::Default
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};
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if matches.opt_present("p") && matches.free.is_empty() {
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if preload_files && matches.free.is_empty() {
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matches.free = vec![DEFAULT_PRELOAD.to_string()];
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}
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Some(Args {
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@ -128,7 +138,7 @@ impl Args {
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display_type,
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ignore_errors: matches.opt_present("e"),
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no_pager: matches.opt_present("P"),
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preload_files: matches.opt_present("p"),
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preload_files,
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pattern: matches
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.opt_str("r")
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.map(|v| Regex::new(&v).expect("invalid regex")),
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