63 lines
1.2 KiB
JavaScript
63 lines
1.2 KiB
JavaScript
'use strict';
|
|
const ansiEscapes = require('ansi-escapes');
|
|
const cliCursor = require('cli-cursor');
|
|
const wrapAnsi = require('wrap-ansi');
|
|
|
|
const getWidth = stream => {
|
|
const columns = stream.columns;
|
|
|
|
if (!columns) {
|
|
return 80;
|
|
}
|
|
|
|
// Windows appears to wrap a character early
|
|
// I hate Windows so much
|
|
if (process.platform === 'win32') {
|
|
return columns - 1;
|
|
}
|
|
|
|
return columns;
|
|
};
|
|
|
|
const main = (stream, options) => {
|
|
options = Object.assign({
|
|
showCursor: false
|
|
}, options);
|
|
|
|
let prevLineCount = 0;
|
|
|
|
const render = function () {
|
|
if (!options.showCursor) {
|
|
cliCursor.hide();
|
|
}
|
|
|
|
let out = [].join.call(arguments, ' ') + '\n';
|
|
out = wrapAnsi(out, getWidth(stream), {
|
|
trim: false,
|
|
hard: true,
|
|
wordWrap: false
|
|
});
|
|
stream.write(ansiEscapes.eraseLines(prevLineCount) + out);
|
|
prevLineCount = out.split('\n').length;
|
|
};
|
|
|
|
render.clear = () => {
|
|
stream.write(ansiEscapes.eraseLines(prevLineCount));
|
|
prevLineCount = 0;
|
|
};
|
|
|
|
render.done = () => {
|
|
prevLineCount = 0;
|
|
|
|
if (!options.showCursor) {
|
|
cliCursor.show();
|
|
}
|
|
};
|
|
|
|
return render;
|
|
};
|
|
|
|
module.exports = main(process.stdout);
|
|
module.exports.stderr = main(process.stderr);
|
|
module.exports.create = main;
|