1 |
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2 | 'use strict';
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3 |
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4 | const os = require('os');
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5 | const createExplorer = require('./createExplorer');
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6 | const loaders = require('./loaders');
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7 |
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8 | module.exports = cosmiconfig;
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9 |
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10 | function cosmiconfig(
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11 | moduleName ,
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12 | options
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13 |
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14 |
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15 |
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16 |
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17 |
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18 |
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19 |
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20 |
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21 | ) {
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22 | options = options || {};
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23 | const defaults = {
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24 | packageProp: moduleName,
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25 | searchPlaces: [
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26 | 'package.json',
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27 | `.${moduleName}rc`,
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28 | `.${moduleName}rc.json`,
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29 | `.${moduleName}rc.yaml`,
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30 | `.${moduleName}rc.yml`,
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31 | `${moduleName}.config.js`,
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32 | ],
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33 | ignoreEmptySearchPlaces: true,
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34 | stopDir: os.homedir(),
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35 | cache: true,
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36 | transform: identity,
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37 | };
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38 | const normalizedOptions = Object.assign(
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39 | {},
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40 | defaults,
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41 | options,
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42 | {
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43 | loaders: normalizeLoaders(options.loaders),
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44 | }
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45 | );
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46 |
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47 | return createExplorer(normalizedOptions);
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48 | }
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49 |
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50 | cosmiconfig.loadJs = loaders.loadJs;
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51 | cosmiconfig.loadJson = loaders.loadJson;
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52 | cosmiconfig.loadYaml = loaders.loadYaml;
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53 |
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54 | function normalizeLoaders(rawLoaders ) {
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55 | const defaults = {
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56 | '.js': { sync: loaders.loadJs, async: loaders.loadJs },
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57 | '.json': { sync: loaders.loadJson, async: loaders.loadJson },
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58 | '.yaml': { sync: loaders.loadYaml, async: loaders.loadYaml },
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59 | '.yml': { sync: loaders.loadYaml, async: loaders.loadYaml },
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60 | noExt: { sync: loaders.loadYaml, async: loaders.loadYaml },
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61 | };
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62 |
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63 | if (!rawLoaders) {
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64 | return defaults;
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65 | }
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66 |
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67 | return Object.keys(rawLoaders).reduce((result, ext) => {
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68 | const entry = rawLoaders && rawLoaders[ext];
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69 | if (typeof entry === 'function') {
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70 | result[ext] = { sync: entry, async: entry };
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71 | } else {
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72 | result[ext] = entry;
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73 | }
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74 | return result;
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75 | }, defaults);
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76 | }
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77 |
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78 | function identity(x) {
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79 | return x;
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80 | }
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