1 | var childProcess = require('child_process')
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2 | var pkgUp = require('pkg-up')
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3 | var path = require('path')
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4 | var fs = require('fs')
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5 |
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6 | var BrowserslistError = require('./error')
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7 |
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8 | function detectLockfile () {
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9 | var packagePath = pkgUp.sync()
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10 | if (!packagePath) {
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11 | throw new BrowserslistError(
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12 | 'Cannot find package.json. ' +
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13 | 'Is it a right project to run npx browserslist --update-db?'
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14 | )
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15 | }
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16 |
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17 | var rootDir = path.dirname(packagePath)
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18 | var lockfileNpm = path.join(rootDir, 'package-lock.json')
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19 | var lockfileYarn = path.join(rootDir, 'yarn.lock')
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20 | var lockfilePnpm = path.join(rootDir, 'pnpm-lock.yaml')
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21 |
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22 | if (fs.existsSync(lockfileNpm)) {
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23 | return { mode: 'npm', file: lockfileNpm }
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24 | } else if (fs.existsSync(lockfileYarn)) {
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25 | return { mode: 'yarn', file: lockfileYarn }
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26 | } else if (fs.existsSync(lockfilePnpm)) {
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27 | return { mode: 'pnpm', file: lockfilePnpm }
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28 | } else {
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29 | throw new BrowserslistError(
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30 | 'No lockfile found. Run "npm install", "yarn install" or "pnpm install"'
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31 | )
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32 | }
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33 | }
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34 |
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35 | function getCurrentVersion (lock) {
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36 | var match
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37 | if (lock.mode === 'npm') {
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38 | var dependencies = JSON.parse(lock.content).dependencies
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39 | if (dependencies && dependencies['caniuse-lite']) {
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40 | return dependencies['caniuse-lite'].version
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41 | }
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42 | } else if (lock.mode === 'yarn') {
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43 | match = /caniuse-lite@[^:]+:\n\s+version\s+"([^"]+)"/.exec(lock.content)
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44 | if (match[1]) return match[1]
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45 | } else if (lock.mode === 'pnpm') {
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46 | match = /\/caniuse-lite\/([^:]+):/.exec(lock.content)
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47 | if (match[1]) return match[1]
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48 | }
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49 | return null
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50 | }
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51 |
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52 | function getLastestInfo () {
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53 | return JSON.parse(
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54 | childProcess.execSync('npm show caniuse-lite --json').toString()
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55 | )
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56 | }
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57 |
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58 | function updateLockfile (lock, latest) {
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59 | if (lock.mode === 'npm') {
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60 | var fixed = deletePackage(JSON.parse(lock.content))
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61 | return JSON.stringify(fixed, null, ' ')
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62 | } else {
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63 | var lines = lock.content.split('\n')
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64 | var i
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65 | if (lock.mode === 'yarn') {
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66 | for (i = 0; i < lines.length; i++) {
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67 | if (lines[i].indexOf('caniuse-lite@') !== -1) {
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68 | lines[i + 1] = lines[i + 1].replace(
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69 | /version "[^"]+"/, 'version "' + latest.version + '"'
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70 | )
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71 | lines[i + 2] = lines[i + 2].replace(
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72 | /resolved "[^"]+"/, 'resolved "' + latest.dist.tarball + '"'
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73 | )
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74 | lines[i + 3] = lines[i + 3].replace(
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75 | /integrity .+/, 'integrity ' + latest.dist.integrity
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76 | )
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77 | i += 4
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78 | }
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79 | }
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80 | } else if (lock.mode === 'pnpm') {
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81 | for (i = 0; i < lines.length; i++) {
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82 | if (lines[i].indexOf('caniuse-lite:') >= 0) {
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83 | lines[i] = lines[i].replace(/: .*$/, ': ' + latest.version)
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84 | } else if (lines[i].indexOf('/caniuse-lite') >= 0) {
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85 | lines[i] = lines[i].replace(/\/[^/:]+:/, '/' + latest.version + ':')
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86 | for (i = i + 1; i < lines.length; i++) {
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87 | if (lines[i].indexOf('integrity: ') !== -1) {
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88 | lines[i] = lines[i].replace(
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89 | /integrity: .+/, 'integrity: ' + latest.dist.integrity
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90 | )
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91 | } else if (lines[i].indexOf(' /') !== -1) {
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92 | break
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93 | }
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94 | }
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95 | }
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96 | }
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97 | }
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98 | return lines.join('\n')
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99 | }
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100 | }
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101 |
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102 | function deletePackage (node) {
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103 | if (node.dependencies) {
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104 | delete node.dependencies['caniuse-lite']
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105 | for (var i in node.dependencies) {
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106 | node.dependencies[i] = deletePackage(node.dependencies[i])
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107 | }
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108 | }
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109 | return node
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110 | }
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111 |
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112 | module.exports = function updateDB (print) {
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113 | var lock = detectLockfile()
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114 | lock.content = fs.readFileSync(lock.file).toString()
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115 |
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116 | var current = getCurrentVersion(lock)
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117 | var latest = getLastestInfo()
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118 |
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119 | if (typeof current === 'string') {
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120 | print('Current version: ' + current + '\n')
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121 | }
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122 | print(
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123 | 'New version: ' + latest.version + '\n' +
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124 | 'Updating caniuse-lite…\n'
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125 | )
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126 |
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127 | fs.writeFileSync(lock.file, updateLockfile(lock, latest))
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128 | childProcess.execSync(lock.mode + ' install')
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129 |
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130 | print('caniuse-lite has been successfully updated')
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131 | }
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