Function render

packages/bumpy/src/prompts/bump-select.ts:88–197

(final = false)

    let renderedLines = 0;

    function render(final = false) {
      // Clear previous render
      if (renderedLines > 0) {
        stdout.write(`\x1B[${renderedLines}A`); // Move up
        stdout.write('\x1B[0J'); // Clear from cursor to end
      }

      const lines: string[] = [];

      if (final) {
        lines.push(`${pc.green('◇')}  Bump levels selected`);
        const selected = displayOrder.filter(({ idx }) => levels[idx] !== 'skip');
        if (selected.length === 0) {
          lines.push(`${pc.dim('│')}  ${pc.dim('(none selected)')}`);
        } else {
          for (const { item, idx } of selected) {
            lines.push(`${pc.dim('│')}  ${pc.cyan(item.name)} ${pc.dim('→')} ${pc.bold(levels[idx]!)}`);
          }
        }
        lines.push(pc.dim('│'));

        const output = lines.join('\n') + '\n';
        stdout.write(output);
        renderedLines = lines.length;
        return;
      }

      const headerChrome = [
        `${pc.cyan('◆')}  Select bump levels`,
        `${pc.dim('│')}  ${pc.dim('↑/↓ navigate · ←/→ change level · enter to confirm')}`,
        `${pc.dim('│')}  ${pc.dim('0 skip current · x skip all · r reset all to defaults')}`,
        pc.dim('│'),
      ];

      const selectedCount = levels.filter((l) => l !== 'skip').length;
      const footerChrome = [
        pc.dim('│'),
        `${pc.dim('│')}  ${pc.dim(`${selectedCount} package${selectedCount !== 1 ? 's' : ''} selected`)}`,
        pc.dim('└'),
      ];

      // Determine viewport size: how many body lines fit in the terminal.
      const termRows = stdout.rows || 24;
      const chromeLines = headerChrome.length + footerChrome.length;
      const MIN_BODY = 3;
      const availableBody = Math.max(MIN_BODY, termRows - chromeLines - 1);

      let visibleRows: Row[];
      let topIndicator: string | null = null;
      let bottomIndicator: string | null = null;
      let stickyHeader: string | null = null;

      if (rows.length <= availableBody) {
        visibleRows = rows;
        scroll = 0;
      } else {
        // Reserve up to 2 lines for scroll indicators (one above, one below).
        let windowSize = Math.max(MIN_BODY, availableBody - 2);