docker-lemp-node/www/nodejs/node_modules/boxen/index.js

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JavaScript
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2022-03-27 16:02:38 +00:00
'use strict';
const stringWidth = require('string-width');
const chalk = require('chalk');
const widestLine = require('widest-line');
const cliBoxes = require('cli-boxes');
const camelCase = require('camelcase');
const ansiAlign = require('ansi-align');
const wrapAnsi = require('wrap-ansi');
const NL = '\n';
const PAD = ' ';
const terminalColumns = () => {
const {env, stdout, stderr} = process;
if (stdout && stdout.columns) {
return stdout.columns;
}
if (stderr && stderr.columns) {
return stderr.columns;
}
if (env.COLUMNS) {
return Number.parseInt(env.COLUMNS, 10);
}
return 80;
};
const getObject = detail => {
return typeof detail === 'number' ? {
top: detail,
right: detail * 3,
bottom: detail,
left: detail * 3
} : {
top: 0,
right: 0,
bottom: 0,
left: 0,
...detail
};
};
const getBorderChars = borderStyle => {
const sides = [
'topLeft',
'topRight',
'bottomRight',
'bottomLeft',
'vertical',
'horizontal'
];
let chararacters;
if (typeof borderStyle === 'string') {
chararacters = cliBoxes[borderStyle];
if (!chararacters) {
throw new TypeError(`Invalid border style: ${borderStyle}`);
}
} else {
for (const side of sides) {
if (!borderStyle[side] || typeof borderStyle[side] !== 'string') {
throw new TypeError(`Invalid border style: ${side}`);
}
}
chararacters = borderStyle;
}
return chararacters;
};
const makeTitle = (text, horizontal, alignement) => {
let title = '';
const textWidth = stringWidth(text);
switch (alignement) {
case 'left':
title = text + horizontal.slice(textWidth);
break;
case 'right':
title = horizontal.slice(textWidth) + text;
break;
default:
horizontal = horizontal.slice(textWidth);
if (horizontal.length % 2 === 1) { // This is needed in case the length is odd
horizontal = horizontal.slice(Math.floor(horizontal.length / 2));
title = horizontal.slice(1) + text + horizontal; // We reduce the left part of one character to avoid the bar to go beyond its limit
} else {
horizontal = horizontal.slice(horizontal.length / 2);
title = horizontal + text + horizontal;
}
break;
}
return title;
};
const makeContentText = (text, padding, columns, align) => {
text = ansiAlign(text, {align});
let lines = text.split(NL);
const textWidth = widestLine(text);
const max = columns - padding.left - padding.right;
if (textWidth > max) {
const newLines = [];
for (const line of lines) {
const createdLines = wrapAnsi(line, max, {hard: true});
const alignedLines = ansiAlign(createdLines, {align});
const alignedLinesArray = alignedLines.split('\n');
const longestLength = Math.max(...alignedLinesArray.map(s => stringWidth(s)));
for (const alignedLine of alignedLinesArray) {
let paddedLine;
switch (align) {
case 'center':
paddedLine = PAD.repeat((max - longestLength) / 2) + alignedLine;
break;
case 'right':
paddedLine = PAD.repeat(max - longestLength) + alignedLine;
break;
default:
paddedLine = alignedLine;
break;
}
newLines.push(paddedLine);
}
}
lines = newLines;
}
if (align === 'center' && textWidth < max) {
lines = lines.map(line => PAD.repeat((max - textWidth) / 2) + line);
} else if (align === 'right' && textWidth < max) {
lines = lines.map(line => PAD.repeat(max - textWidth) + line);
}
const paddingLeft = PAD.repeat(padding.left);
const paddingRight = PAD.repeat(padding.right);
lines = lines.map(line => paddingLeft + line + paddingRight);
lines = lines.map(line => {
if (columns - stringWidth(line) > 0) {
switch (align) {
case 'center':
return line + PAD.repeat(columns - stringWidth(line));
case 'right':
return line + PAD.repeat(columns - stringWidth(line));
default:
return line + PAD.repeat(columns - stringWidth(line));
}
}
return line;
});
if (padding.top > 0) {
lines = new Array(padding.top).fill(PAD.repeat(columns)).concat(lines);
}
if (padding.bottom > 0) {
lines = lines.concat(new Array(padding.bottom).fill(PAD.repeat(columns)));
}
return lines.join(NL);
};
const isHex = color => color.match(/^#(?:[0-f]{3}){1,2}$/i);
const isColorValid = color => typeof color === 'string' && ((chalk[color]) || isHex(color));
const getColorFn = color => isHex(color) ? chalk.hex(color) : chalk[color];
const getBGColorFn = color => isHex(color) ? chalk.bgHex(color) : chalk[camelCase(['bg', color])];
module.exports = (text, options) => {
options = {
padding: 0,
borderStyle: 'single',
dimBorder: false,
textAlignment: 'left',
float: 'left',
titleAlignment: 'left',
...options
};
// This option is deprecated
if (options.align) {
options.textAlignment = options.align;
}
const BORDERS_WIDTH = 2;
if (options.borderColor && !isColorValid(options.borderColor)) {
throw new Error(`${options.borderColor} is not a valid borderColor`);
}
if (options.backgroundColor && !isColorValid(options.backgroundColor)) {
throw new Error(`${options.backgroundColor} is not a valid backgroundColor`);
}
const chars = getBorderChars(options.borderStyle);
const padding = getObject(options.padding);
const margin = getObject(options.margin);
const colorizeBorder = border => {
const newBorder = options.borderColor ? getColorFn(options.borderColor)(border) : border;
return options.dimBorder ? chalk.dim(newBorder) : newBorder;
};
const colorizeContent = content => options.backgroundColor ? getBGColorFn(options.backgroundColor)(content) : content;
const columns = terminalColumns();
let contentWidth = widestLine(wrapAnsi(text, columns - BORDERS_WIDTH, {hard: true, trim: false})) + padding.left + padding.right;
// This prevents the title bar to exceed the console's width
let title = options.title && options.title.slice(0, columns - 4 - margin.left - margin.right);
if (title) {
title = ` ${title} `;
// Make the box larger to fit a larger title
if (stringWidth(title) > contentWidth) {
contentWidth = stringWidth(title);
}
}
if ((margin.left && margin.right) && contentWidth + BORDERS_WIDTH + margin.left + margin.right > columns) {
// Let's assume we have margins: left = 3, right = 5, in total = 8
const spaceForMargins = columns - contentWidth - BORDERS_WIDTH;
// Let's assume we have space = 4
const multiplier = spaceForMargins / (margin.left + margin.right);
// Here: multiplier = 4/8 = 0.5
margin.left = Math.max(0, Math.floor(margin.left * multiplier));
margin.right = Math.max(0, Math.floor(margin.right * multiplier));
// Left: 3 * 0.5 = 1.5 -> 1
// Right: 6 * 0.5 = 3
}
// Prevent content from exceeding the console's width
contentWidth = Math.min(contentWidth, columns - BORDERS_WIDTH - margin.left - margin.right);
text = makeContentText(text, padding, contentWidth, options.textAlignment);
let marginLeft = PAD.repeat(margin.left);
if (options.float === 'center') {
const marginWidth = Math.max((columns - contentWidth - BORDERS_WIDTH) / 2, 0);
marginLeft = PAD.repeat(marginWidth);
} else if (options.float === 'right') {
const marginWidth = Math.max(columns - contentWidth - margin.right - BORDERS_WIDTH, 0);
marginLeft = PAD.repeat(marginWidth);
}
const horizontal = chars.horizontal.repeat(contentWidth);
const top = colorizeBorder(NL.repeat(margin.top) + marginLeft + chars.topLeft + (title ? makeTitle(title, horizontal, options.titleAlignment) : horizontal) + chars.topRight);
const bottom = colorizeBorder(marginLeft + chars.bottomLeft + horizontal + chars.bottomRight + NL.repeat(margin.bottom));
const side = colorizeBorder(chars.vertical);
const LINE_SEPARATOR = (contentWidth + BORDERS_WIDTH + margin.left >= columns) ? '' : NL;
const lines = text.split(NL);
const middle = lines.map(line => {
return marginLeft + side + colorizeContent(line) + side;
}).join(LINE_SEPARATOR);
return top + LINE_SEPARATOR + middle + LINE_SEPARATOR + bottom;
};
module.exports._borderStyles = cliBoxes;