fancy.js
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import stringWidth from 'string-width'
import figures from 'figures'
import chalk from 'chalk'
import BasicReporter from './basic'
import { parseStack } from '../utils/error'
import { chalkColor, chalkBgColor } from '../utils/chalk'
import { TYPE_COLOR_MAP, LEVEL_COLOR_MAP } from '../utils/fancy'
const DEFAULTS = {
secondaryColor: 'grey',
formatOptions: {
date: true,
colors: true,
compact: false
}
}
const TYPE_ICONS = {
info: figures('ℹ'),
success: figures('✔'),
debug: figures('›'),
trace: figures('›'),
log: ''
}
export default class FancyReporter extends BasicReporter {
constructor (options) {
super(Object.assign({}, DEFAULTS, options))
}
formatStack (stack) {
const grey = chalkColor('grey')
const cyan = chalkColor('cyan')
return '\n' + parseStack(stack)
.map(line => ' ' + line
.replace(/^at +/, m => grey(m))
.replace(/\((.+)\)/, (_, m) => `(${cyan(m)})`)
)
.join('\n')
}
formatType (logObj, isBadge) {
const typeColor = TYPE_COLOR_MAP[logObj.type] ||
LEVEL_COLOR_MAP[logObj.level] ||
this.options.secondaryColor
if (isBadge) {
return chalkBgColor(typeColor).black(` ${logObj.type.toUpperCase()} `)
}
const _type = typeof TYPE_ICONS[logObj.type] === 'string' ? TYPE_ICONS[logObj.type] : (logObj.icon || logObj.type)
return _type ? chalkColor(typeColor)(_type) : ''
}
formatLogObj (logObj, { width }) {
const [message, ...additional] = this.formatArgs(logObj.args).split('\n')
const isBadge = typeof logObj.badge !== 'undefined' ? Boolean(logObj.badge) : logObj.level < 2
const secondaryColor = chalkColor(this.options.secondaryColor)
const date = this.formatDate(logObj.date)
const coloredDate = date && secondaryColor(date)
const type = this.formatType(logObj, isBadge)
const tag = logObj.tag ? secondaryColor(logObj.tag) : ''
const formattedMessage = message.replace(/`([^`]+)`/g, (_, m) => chalk.cyan(m))
let line
const left = this.filterAndJoin([type, formattedMessage])
const right = this.filterAndJoin([tag, coloredDate])
const space = width - stringWidth(left) - stringWidth(right) - 2
if (space > 0 && width >= 80) {
line = left + ' '.repeat(space) + right
} else {
line = left
}
line += additional.length ? '\n' + additional.join('\n') : ''
return isBadge ? '\n' + line + '\n' : line
}
}