git ssb

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#!/usr/bin/env node
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/* eslint-disable no-multi-spaces */
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'use strict';
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const path = require('path');
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const assert = require('assert');
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const utils = require('../utils.js');
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assert(!module.parent);
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assert(__dirname === process.cwd());
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const host = 'node' + process.version.match(/^v(\d+)/)[1];
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const target = process.argv[2] || host;
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const input = './test-x-index.js';
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const output = './run-time/test-output.exe';
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// see readFromSnapshot "NODE_VERSION_MAJOR"
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function bitty (version) {
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  return (2  *  (/^(node|v)?4/.test(version))) |
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         (2  *  (/^(node|v)?5/.test(version))) |
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         (4  *  (/^(node|v)?6/.test(version))) |
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         (4  *  (/^(node|v)?7/.test(version))) |
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         (4  *  (/^(node|v)?8/.test(version))) |
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         (4  *  (/^(node|v)?9/.test(version))) |
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         (8  * (/^(node|v)?10/.test(version))) |
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         (8  * (/^(node|v)?11/.test(version))) |
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         (16 * (/^(node|v)?12/.test(version))) |
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         (16 * (/^(node|v)?13/.test(version))) |
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         (16 * (/^(node|v)?14/.test(version)));
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}
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const version1 = process.version;
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const version2 = target;
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if (bitty(version1) !== bitty(version2)) return;
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let left, right;
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utils.mkdirp.sync(path.dirname(output));
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left = utils.spawn.sync(
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  'node', [ path.basename(input) ],
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  { cwd: path.dirname(input) }
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);
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utils.pkg.sync([
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  '--target', target,
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  '--output', output, input
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]);
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right = utils.spawn.sync(
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  './' + path.basename(output), [],
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  { cwd: path.dirname(output) }
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);
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left = left.split('\n');
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right = right.split('\n');
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// right may have less lines, premature exit,
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// less trusted, so using left.length here
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for (let i = 0; i < left.length; i += 1) {
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  assert.equal(left[i], right[i]);
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}
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utils.vacuum.sync(path.dirname(output));
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