1 |
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2 | 'use strict'
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3 |
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4 | const chalk = require('chalk')
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5 | const Table = require('cli-table2')
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6 |
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7 | const projectMeta = require('./utils/project-meta.js')
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8 |
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9 | function read (
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10 | cwd /* : string */,
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11 | env /* : string */
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12 | ) /* : Promise<{ [id:string]: string }> */ {
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13 | return projectMeta.read(cwd)
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14 | .then((config) => config && config.server && config.server.variables ? config.server.variables : {})
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15 | .then((variables) => {
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16 | const keys = Object.keys(variables)
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17 |
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18 | if (!keys.length) {
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19 | return {}
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20 | }
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21 |
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22 | return keys.reduce((memo, key) => {
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23 | const variable = variables[key]
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24 | switch (typeof variable) {
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25 | case 'string':
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26 | memo[key] = variable
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27 | return memo
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28 | case 'object': {
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29 | if (variable[env]) {
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30 | if (typeof variable[env] !== 'string') {
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31 | throw new Error(`Variable ${key} for Environment ${env} must be a string`)
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32 | }
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33 | memo[key] = variable[env]
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34 | }
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35 | return memo
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36 | }
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37 | default:
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38 | throw new Error(`Variable ${key} must be an object or a string`)
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39 | }
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40 | }, {})
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41 | })
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42 | }
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43 |
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44 | function display (
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45 | logger /* : any */,
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46 | cwd /* : string */,
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47 | env /* : string */
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48 | ) /* : Promise<void> */ {
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49 | return read(cwd, env)
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50 | .then((envVars) => _display(logger, envVars, env))
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51 | }
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52 |
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53 | function setToCurrentProcess (
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54 | logger /* : typeof console */,
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55 | cwd /* : string */,
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56 | env /* : string */
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57 | ) /* : Promise<void> */ {
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58 | return read(cwd, env)
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59 | .then((envVars) => {
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60 | const keys = Object.keys(envVars)
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61 | if (!keys.length) {
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62 | return
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63 | }
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64 |
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65 | keys.forEach((key) => {
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66 | process.env[key] = envVars[key]
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67 | })
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68 |
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69 | return _display(logger, envVars, env)
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70 | })
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71 | }
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72 |
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73 | function _display (
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74 | logger /* : typeof console */,
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75 | envVars /* : { [id:string]: string } */,
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76 | env /* : string */
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77 | ) /* : void */ {
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78 | const keys = Object.keys(envVars)
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79 | if (!keys.length) {
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80 | return
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81 | }
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82 |
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83 | const rows = keys.map((key) => [
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84 | chalk.grey(key),
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85 | envVars[key]
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86 | ])
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87 |
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88 | rows.unshift([{
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89 | content: chalk.bold(`Environment Variables (${env})`),
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90 | hAlign: 'center',
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91 | colSpan: 2
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92 | }])
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93 |
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94 | var table = new Table()
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95 | table.push.apply(table, rows)
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96 |
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97 | logger.log(table.toString())
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98 | }
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99 |
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100 | module.exports = {
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101 | read,
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102 | display,
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103 | setToCurrentProcess
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104 | }
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