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add parse_size()

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Hatter Jiang
2019-07-22 01:22:09 +08:00
parent 6a08f8f92f
commit 37bde2e066
1 changed files with 24 additions and 4 deletions
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28
src/lib.rs
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@@ -152,6 +152,26 @@ pub fn print_lastline(line: &str) {
flush_stdout(); flush_stdout();
} }
pub fn parse_size(size: &str) -> XResult<i64> {
let lower_size = size.to_lowercase();
if lower_size.ends_with("b") {
let no_last_b_size = &lower_size[0..lower_size.len()-1];
if no_last_b_size.ends_with("k") {
return Ok((SIZE_KB as f64 * no_last_b_size[0..no_last_b_size.len()-1].parse::<f64>()?) as i64);
} else if no_last_b_size.ends_with("m") {
return Ok((SIZE_MB as f64 * no_last_b_size[0..no_last_b_size.len()-1].parse::<f64>()?) as i64);
} else if no_last_b_size.ends_with("g") {
return Ok((SIZE_GB as f64 * no_last_b_size[0..no_last_b_size.len()-1].parse::<f64>()?) as i64);
} else if no_last_b_size.ends_with("t") {
return Ok((SIZE_TB as f64 * no_last_b_size[0..no_last_b_size.len()-1].parse::<f64>()?) as i64);
} else if no_last_b_size.ends_with("p") {
return Ok((SIZE_PB as f64 * no_last_b_size[0..no_last_b_size.len()-1].parse::<f64>()?) as i64);
}
}
Err(new_box_error(&format!("Cannot parse size: {}", size)))
}
pub fn get_display_size(size: i64) -> String { pub fn get_display_size(size: i64) -> String {
if size < SIZE_KB { if size < SIZE_KB {
return size.to_string(); return size.to_string();
@@ -159,12 +179,12 @@ pub fn get_display_size(size: i64) -> String {
return format!("{:.*}KB", 2, (size as f64) / 1024.); return format!("{:.*}KB", 2, (size as f64) / 1024.);
} else if size < SIZE_GB { } else if size < SIZE_GB {
return format!("{:.*}MB", 2, (size as f64) / 1024. / 1024.); return format!("{:.*}MB", 2, (size as f64) / 1024. / 1024.);
} else if size < SIZE_PB {
return format!("{:.*}GB", 2, (size as f64) / 1024. / 1024. / 1024.);
} else if size < SIZE_TB { } else if size < SIZE_TB {
return format!("{:.*}PB", 2, (size as f64) / 1024. / 1024. / 1024. / 1024.); return format!("{:.*}GB", 2, (size as f64) / 1024. / 1024. / 1024.);
} else if size < SIZE_PB {
return format!("{:.*}TB", 2, (size as f64) / 1024. / 1024. / 1024. / 1024.);
} else { } else {
return format!("{:.*}TB", 2, (size as f64) / 1024. / 1024. / 1024. / 1024. / 1024.); return format!("{:.*}PB", 2, (size as f64) / 1024. / 1024. / 1024. / 1024. / 1024.);
} }
} }