50 lines
1023 B
JavaScript
50 lines
1023 B
JavaScript
'use strict';
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exports = module.exports = cliWidth;
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function normalizeOpts(options) {
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var defaultOpts = {
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defaultWidth: 0,
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output: process.stdout,
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tty: require('tty')
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};
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if (!options) {
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return defaultOpts;
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} else {
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Object.keys(defaultOpts).forEach(function (key) {
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if (!options[key]) {
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options[key] = defaultOpts[key];
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}
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});
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return options;
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}
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}
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function cliWidth(options) {
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var opts = normalizeOpts(options);
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if (opts.output.getWindowSize) {
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return opts.output.getWindowSize()[0] || opts.defaultWidth;
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} else {
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if (opts.tty.getWindowSize) {
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return opts.tty.getWindowSize()[1] || opts.defaultWidth;
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} else {
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if (opts.output.columns) {
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return opts.output.columns;
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} else {
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if (process.env.CLI_WIDTH) {
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var width = parseInt(process.env.CLI_WIDTH, 10);
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if (!isNaN(width) && width !== 0) {
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return width;
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}
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}
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}
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return opts.defaultWidth;
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}
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}
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};
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