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various: reduce allocations where available

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Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I517d855b14c015569a325deb64948f3b6a6a6964
This commit is contained in:
raf 2025-11-17 17:55:10 +03:00
commit 2ad765ef98
Signed by: NotAShelf
GPG key ID: 29D95B64378DB4BF
5 changed files with 125 additions and 65 deletions
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45
src/colors.rs
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@ -37,7 +37,7 @@ impl Colors {
}
pub static COLORS: LazyLock<Colors> = LazyLock::new(|| {
// check for NO_COLOR once at startup
// Check for NO_COLOR once at startup
let is_no_color = env::var("NO_COLOR").is_ok();
Colors::new(is_no_color)
});
@ -45,14 +45,37 @@ pub static COLORS: LazyLock<Colors> = LazyLock::new(|| {
#[must_use]
#[cfg_attr(feature = "hotpath", hotpath::measure)]
pub fn print_dots() -> String {
format!(
"{} {} {} {} {} {} {}",
COLORS.blue,
COLORS.cyan,
COLORS.green,
COLORS.yellow,
COLORS.red,
COLORS.magenta,
COLORS.reset,
)
// Pre-calculate capacity: 6 color codes + " " (glyph + 2 spaces) per color
const GLYPH: &str = "";
let capacity = COLORS.blue.len()
+ COLORS.cyan.len()
+ COLORS.green.len()
+ COLORS.yellow.len()
+ COLORS.red.len()
+ COLORS.magenta.len()
+ COLORS.reset.len()
+ (GLYPH.len() + 2) * 6;
let mut result = String::with_capacity(capacity);
result.push_str(COLORS.blue);
result.push_str(GLYPH);
result.push_str(" ");
result.push_str(COLORS.cyan);
result.push_str(GLYPH);
result.push_str(" ");
result.push_str(COLORS.green);
result.push_str(GLYPH);
result.push_str(" ");
result.push_str(COLORS.yellow);
result.push_str(GLYPH);
result.push_str(" ");
result.push_str(COLORS.red);
result.push_str(GLYPH);
result.push_str(" ");
result.push_str(COLORS.magenta);
result.push_str(GLYPH);
result.push_str(" ");
result.push_str(COLORS.reset);
result
}