pixa 0.1.0

Fast image processing CLI: compress, resize, convert, split sprite sheets, generate favicons, and remove Gemini AI watermarks. One command for AI-image-to-web optimization.
Documentation 
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//! Terminal styling helpers with NO_COLOR + TTY detection.
//!
//! All helpers return plain text when stdout is not a TTY, when
//! the `NO_COLOR` env var is set, or when `TERM=dumb`.

use std::io::IsTerminal;
use std::sync::OnceLock;

fn color_enabled() -> bool {
    static ENABLED: OnceLock<bool> = OnceLock::new();
    *ENABLED.get_or_init(|| {
        if std::env::var_os("NO_COLOR").is_some() {
            return false;
        }
        if matches!(std::env::var("TERM").as_deref(), Ok("dumb")) {
            return false;
        }
        std::io::stdout().is_terminal()
    })
}

fn paint(code: &str, s: &str) -> String {
    if color_enabled() {
        format!("\x1b[{code}m{s}\x1b[0m")
    } else {
        s.to_string()
    }
}

pub fn green(s: &str) -> String {
    paint("32", s)
}
pub fn red(s: &str) -> String {
    paint("31", s)
}
pub fn yellow(s: &str) -> String {
    paint("33", s)
}
pub fn cyan(s: &str) -> String {
    paint("36", s)
}
pub fn dim(s: &str) -> String {
    paint("2", s)
}
pub fn bold(s: &str) -> String {
    paint("1", s)
}

/// Success mark, e.g. "✓" (or plain "OK" when colors disabled).
pub fn ok_mark() -> String {
    green("✓")
}
pub fn fail_mark() -> String {
    red("✗")
}
pub fn skip_mark() -> String {
    yellow("-")
}
pub fn arrow() -> String {
    dim("→")
}