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tail: -f option on stdin

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The follow() function takes slices instead of the actual vectors, and in
the case of unbounded_tail the single bufReader is on stdin.
This commit is contained in:
Mariano Casco 2016-05-31 12:36:45 -03:00
parent fafab00cd8
commit 79d281394f
1 changed files with 3 additions and 5 deletions
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8
src/tail/tail.rs
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@ -172,7 +172,7 @@ pub fn uumain(args: Vec<String>) -> i32 {
}
if settings.follow {
follow(readers, &files, &settings);
follow(&mut readers[..], &files[..], &settings);
}
}
@ -304,7 +304,7 @@ fn obsolete(options: &[String]) -> (Vec<String>, Option<u64>) {
/// block read at a time.
const BLOCK_SIZE: u64 = 1 << 16;
fn follow<T: Read>(mut readers: Vec<BufReader<T>>, filenames: &Vec<String>, settings: &Settings) {
fn follow<T: Read>(readers: &mut [BufReader<T>], filenames: &[String], settings: &Settings) {
assert!(settings.follow);
let mut last = readers.len() - 1;
@ -482,10 +482,8 @@ fn unbounded_tail<T: Read>(mut reader: BufReader<T>, settings: &Settings) {
}
}
// TODO: make following stdin work with the new follow() signature
// maybe wrap stdin in a 1-element vec?
if settings.follow {
//follow(reader, settings);
follow(&mut [reader], &["stdin".to_string()], settings);
}
}