| 1 | const entries = require('core-js/fn/object/entries');
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| 2 |
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| 3 | module.exports = configuration => {
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| 4 | const lines = entries(configuration.description)
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| 5 | .map(entry => {
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| 6 | const name = entry[0];
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| 7 | const desc = entry[1];
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| 8 | const alias = Object.entries(configuration.alias)
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| 9 | .find(entry => entry[1] === name)
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| 10 | .map(entry => entry[0])[0];
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| 11 | const defaults = configuration.default[name];
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| 12 | return [[name, alias].filter(Boolean), desc, defaults]
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| 13 | .filter(item => item !== null && typeof item !== 'undefined');
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| 14 | });
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| 15 |
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| 16 | const longest = lines
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| 17 | .map(line => {
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| 18 | const flags = line[0];
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| 19 | return flags.reduce((sum, flag) => sum + flag.length, 0);
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| 20 | })
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| 21 | .sort(Number)[0];
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| 22 |
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| 23 | return lines
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| 24 | .map(line => {
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| 25 | const flags = line[0];
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| 26 | const desc = line[1];
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| 27 | const defaults = line[2];
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| 28 | const fs = flags.map(flag => flag.length > 1 ? `--${flag}` : `-${flag}`);
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| 29 | const ds = typeof defaults === 'undefined' ? '' : `, defaults to: ${defaults}`;
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| 30 | const length = flags.reduce((sum, flag) => sum + flag.length, 0);
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| 31 | return `${fs.join(',')}${' '.repeat(7 + longest - length)}${desc}${ds}`;
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| 32 | })
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| 33 | .join('\n');
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| 34 | };
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