You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.3 KiB
JavaScript
87 lines
2.3 KiB
JavaScript
9 months ago
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
Author Tobias Koppers @sokra
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {Array<number>} array array of numbers
|
||
|
|
* @returns {number} sum of all numbers in array
|
||
|
|
*/
|
||
|
|
const arraySum = array => {
|
||
|
|
let sum = 0;
|
||
|
|
for (const item of array) sum += item;
|
||
|
|
return sum;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {any[]} args items to be truncated
|
||
|
|
* @param {number} maxLength maximum length of args including spaces between
|
||
|
|
* @returns {string[]} truncated args
|
||
|
|
*/
|
||
|
|
const truncateArgs = (args, maxLength) => {
|
||
|
|
const lengths = args.map(a => `${a}`.length);
|
||
|
|
const availableLength = maxLength - lengths.length + 1;
|
||
|
|
|
||
|
|
if (availableLength > 0 && args.length === 1) {
|
||
|
|
if (availableLength >= args[0].length) {
|
||
|
|
return args;
|
||
|
|
} else if (availableLength > 3) {
|
||
|
|
return ["..." + args[0].slice(-availableLength + 3)];
|
||
|
|
} else {
|
||
|
|
return [args[0].slice(-availableLength)];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check if there is space for at least 4 chars per arg
|
||
|
|
if (availableLength < arraySum(lengths.map(i => Math.min(i, 6)))) {
|
||
|
|
// remove args
|
||
|
|
if (args.length > 1)
|
||
|
|
return truncateArgs(args.slice(0, args.length - 1), maxLength);
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
|
||
|
|
let currentLength = arraySum(lengths);
|
||
|
|
|
||
|
|
// Check if all fits into maxLength
|
||
|
|
if (currentLength <= availableLength) return args;
|
||
|
|
|
||
|
|
// Try to remove chars from the longest items until it fits
|
||
|
|
while (currentLength > availableLength) {
|
||
|
|
const maxLength = Math.max(...lengths);
|
||
|
|
const shorterItems = lengths.filter(l => l !== maxLength);
|
||
|
|
const nextToMaxLength =
|
||
|
|
shorterItems.length > 0 ? Math.max(...shorterItems) : 0;
|
||
|
|
const maxReduce = maxLength - nextToMaxLength;
|
||
|
|
let maxItems = lengths.length - shorterItems.length;
|
||
|
|
let overrun = currentLength - availableLength;
|
||
|
|
for (let i = 0; i < lengths.length; i++) {
|
||
|
|
if (lengths[i] === maxLength) {
|
||
|
|
const reduce = Math.min(Math.floor(overrun / maxItems), maxReduce);
|
||
|
|
lengths[i] -= reduce;
|
||
|
|
currentLength -= reduce;
|
||
|
|
overrun -= reduce;
|
||
|
|
maxItems--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return args reduced to length in lengths
|
||
|
|
return args.map((a, i) => {
|
||
|
|
const str = `${a}`;
|
||
|
|
const length = lengths[i];
|
||
|
|
if (str.length === length) {
|
||
|
|
return str;
|
||
|
|
} else if (length > 5) {
|
||
|
|
return "..." + str.slice(-length + 3);
|
||
|
|
} else if (length > 0) {
|
||
|
|
return str.slice(-length);
|
||
|
|
} else {
|
||
|
|
return "";
|
||
|
|
}
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
module.exports = truncateArgs;
|