Method render

bin/yarn-standalone.js:117315–117380

(content, bottomContent)

  }

  render(content, bottomContent) {
    this.rl.output.unmute();
    this.clean(this.extraLinesUnderPrompt);

    /**
     * Write message to screen and setPrompt to control backspace
     */

    var promptLine = lastLine(content);
    var rawPromptLine = stripAnsi(promptLine);

    // Remove the rl.line from our prompt. We can't rely on the content of
    // rl.line (mainly because of the password prompt), so just rely on it's
    // length.
    var prompt = rawPromptLine;
    if (this.rl.line.length) {
      prompt = prompt.slice(0, -this.rl.line.length);
    }
    this.rl.setPrompt(prompt);

    // SetPrompt will change cursor position, now we can get correct value
    var cursorPos = this.rl._getCursorPos();
    var width = this.normalizedCliWidth();

    content = this.forceLineReturn(content, width);
    if (bottomContent) {
      bottomContent = this.forceLineReturn(bottomContent, width);
    }
    // Manually insert an extra line if we're at the end of the line.
    // This prevent the cursor from appearing at the beginning of the
    // current line.
    if (rawPromptLine.length % width === 0) {
      content += '\n';
    }
    var fullContent = content + (bottomContent ? '\n' + bottomContent : '');
    this.rl.output.write(fullContent);

    /**
     * Re-adjust the cursor at the correct position.
     */

    // We need to consider parts of the prompt under the cursor as part of the bottom
    // content in order to correctly cleanup and re-render.
    var promptLineUpDiff = Math.floor(rawPromptLine.length / width) - cursorPos.rows;
    var bottomContentHeight =
      promptLineUpDiff + (bottomContent ? height(bottomContent) : 0);
    if (bottomContentHeight > 0) {
      util.up(this.rl, bottomContentHeight);
    }

    // Reset cursor at the beginning of the line
    util.left(this.rl, stringWidth(lastLine(fullContent)));

    // Adjust cursor on the right
    if (cursorPos.cols > 0) {
      util.right(this.rl, cursorPos.cols);
    }