Function print_flash_warning

src/global.rs:516–575

Prints the big flashing warning shown before a wipe.

(all: bool, targets: &[ProjectStorageLocation])

/// Prints the big flashing warning shown before a wipe.
pub(crate) fn print_flash_warning(all: bool, targets: &[ProjectStorageLocation]) {
    // Banner is `INNER_WIDTH` display columns wide. The colored title row is
    // padded with red-background spaces so the highlight reaches the same
    // width as the `═` rules above and below — a fixed-width visual block
    // rather than a short red strip floating between long horizontal lines.
    const INNER_WIDTH: usize = 64;
    let title = "⚠  DESTRUCTIVE ACTION — TRACEDECAY WIPE  ⚠";
    // Visible columns: ⚠(2) + "  "(2) + 36 + "  "(2) + ⚠(2) = 44.
    // Modern terminals render U+26A0 as a 2-col emoji glyph; older terminals
    // that pick the text presentation will leave a 2-col gap, which is mild.
    const TITLE_COLS: usize = 44;
    let pad_total = INNER_WIDTH.saturating_sub(TITLE_COLS);
    let pad_left = " ".repeat(pad_total / 2);
    let pad_right = " ".repeat(pad_total - pad_total / 2);
    let banner = "═".repeat(INNER_WIDTH);
    let blank_red = " ".repeat(INNER_WIDTH);

    eprintln!();
    eprintln!("\x1b[1;31m{banner}\x1b[0m");
    eprintln!("\x1b[1;5;37;41m{blank_red}\x1b[0m");
    eprintln!("\x1b[1;5;37;41m{pad_left}{title}{pad_right}\x1b[0m");
    eprintln!("\x1b[1;5;37;41m{blank_red}\x1b[0m");
    eprintln!("\x1b[1;31m{banner}\x1b[0m");
    eprintln!();
    if all {
        eprintln!(
            "\x1b[1;31mThis will wipe \x1b[5mALL\x1b[25;1;31m tracked tracedecay projects \
             AND empty the global DB.\x1b[0m"
        );
    } else {
        eprintln!(
            "\x1b[1;31mThis will wipe local tracedecay DBs in the current folder \
             (parents and children).\x1b[0m"
        );
    }
    eprintln!();
    if targets.is_empty() {
        eprintln!("  \x1b[33m(no project .tracedecay directories found)\x1b[0m");
    } else {
        eprintln!("Targets:");
        for t in targets {
            eprintln!(
                "  \x1b[31m✗\x1b[0m {} [{}]",
                t.data_root.display(),
                t.status.label()
            );
            if let Some(marker_root) = &t.marker_root {
                eprintln!("    marker: {}", marker_root.display());
            }
        }
    }
    if all {
        if let Some(p) = tracedecay::global_db::global_db_path() {
            eprintln!("  \x1b[31m✗\x1b[0m {} (global DB)", p.display());
        }
    }
    eprintln!();
    eprintln!("\x1b[1;5;33mThis cannot be undone.\x1b[0m");