1 | var Q = require('q');
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2 | var path = require('path');
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3 | var fs = require('../util/fs');
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4 | var createError = require('../util/createError');
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5 |
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6 | function help(logger, name, config) {
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7 | var json;
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8 |
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9 | if (name) {
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10 | json = path.resolve(
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11 | __dirname,
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12 | '../templates/json/help-' + name.replace(/\s+/g, '/') + '.json'
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13 | );
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14 | } else {
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15 | json = path.resolve(__dirname, '../templates/json/help.json');
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16 | }
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17 |
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18 | return Q.promise(function(resolve) {
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19 | fs.exists(json, resolve);
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20 | }).then(function(exists) {
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21 | if (!exists) {
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22 | throw createError('Unknown command: ' + name, 'EUNKNOWNCMD', {
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23 | command: name
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24 | });
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25 | }
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26 |
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27 | return require(json);
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28 | });
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29 | }
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30 |
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31 |
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32 |
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33 | help.readOptions = function(argv) {
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34 | var cli = require('../util/cli');
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35 | var options = cli.readOptions(argv);
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36 | var name = options.argv.remain.slice(1).join(' ');
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37 |
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38 | return [name];
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39 | };
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40 |
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41 | module.exports = help;
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