var _ = require('lodash').runInContext();
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module.exports = function(options, singleDash) {
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return _.reduce(options, function(memo, val, key) {
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val = _.isArray(val) ? val : [val];
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// Loop over each value for this key so that multiple values
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// can be assigned to an option
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_.each(val, function(v) {
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// Build the flag as --key
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var flag = key.length === 1 ? key : _.kebabCase(key);
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// Set = style options, e.g. --fruit=banana
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if (key.slice(-1) === '=') {
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flag = `${flag}=${v}`;
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}
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var prefix = (key.length === 1 || singleDash) ? '-' : '--';
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if (v === false) {
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prefix += 'no-';
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}
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flag = prefix + flag;
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// Add the option to the list
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memo.push(flag);
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// Specifically allow "true" to mean "this flag has no arg with it"
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if (typeof v !== 'boolean' && flag.indexOf('=') === -1) {
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// Add the value to the list as well
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memo.push(v);
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}
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});
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return memo;
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}, []);
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};
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