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48 lines
1.3 KiB
48 lines
1.3 KiB
//! Splash screen~
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use super::*;
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use std::borrow::Cow;
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macro_rules! feature {
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(in $name:tt, $desc:literal) => {
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cfg_if! {
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if #[cfg($name)] {
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println!(" +{}\t{}", stringify!($name), $desc);
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}
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}
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};
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($name:literal, $desc:literal $($tt:tt)*) => {
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cfg_if! {
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if #[cfg(feature=$name)] {
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println!(" +{}\t{}", $name, format!($desc $($tt)*));
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} else {
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println!(" -{}", $name);
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}
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}
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};
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}
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pub fn splash() -> ! {
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arg::usage();
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// splash screen
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println!(r#"
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> sever ({}) v{}
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> Coerce hardlinks to new files
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For verbose output, set `RUST_LOG` env var to one of the following:
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trace - Most verbose
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debug - Verbose
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info - Default
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warn - Only show warnings
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error - Only show errors
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Made by {} with <3 (Licensed GPL 3.0 or later)"#, arg::program_name(), env!("CARGO_PKG_VERSION"), env!("CARGO_PKG_AUTHORS"));
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println!("\nEnabled extensions: ");
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feature!(in nightly, "\tCompiled with Rust nightly extensions");
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println!();
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feature!("parallel", "\tWill run up to {} operations in parallel", parallel::MAX_WORKERS.map(|x| Cow::Owned(x.to_string())).unwrap_or(Cow::Borrowed("unlimited")));
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feature!("limit-concurrency", "Concurrency is capped");
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feature!("threads", "\tUsing thread-pool");
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std::process::exit(1)
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}
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