|
| 1 | +const fs = require('fs'); |
| 2 | +const os = require('os'); |
| 3 | +const npmName = require('npm-name'); |
| 4 | +const pify = require('pify'); |
| 5 | +const recast = require('recast'); |
| 6 | + |
| 7 | +const fileName = `${os.homedir()}/.hyper.js`; |
| 8 | + |
| 9 | +let fileContents; |
| 10 | +let parsedFile; |
| 11 | +let plugins; |
| 12 | +let localPlugins; |
| 13 | + |
| 14 | +try { |
| 15 | + fileContents = fs.readFileSync(fileName, 'utf8'); |
| 16 | + |
| 17 | + parsedFile = recast.parse(fileContents); |
| 18 | + |
| 19 | + const properties = parsedFile.program.body[0].expression.right.properties; |
| 20 | + plugins = properties.find(property => { |
| 21 | + return property.key.name === 'plugins'; |
| 22 | + }).value.elements; |
| 23 | + |
| 24 | + localPlugins = properties.find(property => { |
| 25 | + return property.key.name === 'localPlugins'; |
| 26 | + }).value.elements; |
| 27 | +} catch (err) { |
| 28 | + if (err.code !== 'ENOENT') { |
| 29 | + // ENOENT === !exists() |
| 30 | + throw err; |
| 31 | + } |
| 32 | +} |
| 33 | + |
| 34 | +function exists() { |
| 35 | + return fileContents !== undefined; |
| 36 | +} |
| 37 | + |
| 38 | +function isInstalled(plugin, locally) { |
| 39 | + const array = locally ? localPlugins : plugins; |
| 40 | + if (array && Array.isArray(array)) { |
| 41 | + return array.find(entry => entry.value === plugin) !== undefined; |
| 42 | + } |
| 43 | + return false; |
| 44 | +} |
| 45 | + |
| 46 | +function save() { |
| 47 | + return pify(fs.writeFile)(fileName, recast.print(parsedFile).code, 'utf8'); |
| 48 | +} |
| 49 | + |
| 50 | +function existsOnNpm(plugin) { |
| 51 | + plugin = plugin.split('#')[0].split('@')[0]; |
| 52 | + return npmName(plugin).then(unavailable => { |
| 53 | + if (unavailable) { |
| 54 | + const err = new Error(`${plugin} not found on npm`); |
| 55 | + err.code = 'NOT_FOUND_ON_NPM'; |
| 56 | + throw err; |
| 57 | + } |
| 58 | + }); |
| 59 | +} |
| 60 | + |
| 61 | +function install(plugin, locally) { |
| 62 | + const array = locally ? localPlugins : plugins; |
| 63 | + return new Promise((resolve, reject) => { |
| 64 | + existsOnNpm(plugin) |
| 65 | + .then(() => { |
| 66 | + if (isInstalled(plugin, locally)) { |
| 67 | + return reject(`${plugin} is already installed`); |
| 68 | + } |
| 69 | + |
| 70 | + array.push(recast.types.builders.literal(plugin)); |
| 71 | + save() |
| 72 | + .then(resolve) |
| 73 | + .catch(err => reject(err)); |
| 74 | + }) |
| 75 | + .catch(err => { |
| 76 | + if (err.code === 'NOT_FOUND_ON_NPM') { |
| 77 | + reject(err.message); |
| 78 | + } else { |
| 79 | + reject(err); |
| 80 | + } |
| 81 | + }); |
| 82 | + }); |
| 83 | +} |
| 84 | + |
| 85 | +function uninstall(plugin) { |
| 86 | + return new Promise((resolve, reject) => { |
| 87 | + if (!isInstalled(plugin)) { |
| 88 | + return reject(`${plugin} is not installed`); |
| 89 | + } |
| 90 | + |
| 91 | + const index = plugins.findIndex(entry => entry.value === plugin); |
| 92 | + plugins.splice(index, 1); |
| 93 | + save() |
| 94 | + .then(resolve) |
| 95 | + .catch(err => reject(err)); |
| 96 | + }); |
| 97 | +} |
| 98 | + |
| 99 | +function list() { |
| 100 | + if (Array.isArray(plugins)) { |
| 101 | + return plugins.map(plugin => plugin.value).join('\n'); |
| 102 | + } |
| 103 | + return false; |
| 104 | +} |
| 105 | + |
| 106 | +module.exports.configPath = fileName; |
| 107 | +module.exports.exists = exists; |
| 108 | +module.exports.existsOnNpm = existsOnNpm; |
| 109 | +module.exports.isInstalled = isInstalled; |
| 110 | +module.exports.install = install; |
| 111 | +module.exports.uninstall = uninstall; |
| 112 | +module.exports.list = list; |
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