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40 lines
841 B
40 lines
841 B
'use strict';
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// Older verions of Node.js might not have `util.getSystemErrorName()`.
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// In that case, fall back to a deprecated internal.
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const util = require('util');
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let uv;
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if (typeof util.getSystemErrorName === 'function') {
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module.exports = util.getSystemErrorName;
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} else {
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try {
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uv = process.binding('uv');
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if (typeof uv.errname !== 'function') {
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throw new TypeError('uv.errname is not a function');
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}
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} catch (err) {
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console.error('execa/lib/errname: unable to establish process.binding(\'uv\')', err);
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uv = null;
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}
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module.exports = code => errname(uv, code);
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}
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// Used for testing the fallback behavior
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module.exports.__test__ = errname;
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function errname(uv, code) {
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if (uv) {
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return uv.errname(code);
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}
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if (!(code < 0)) {
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throw new Error('err >= 0');
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}
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return `Unknown system error ${code}`;
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}
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