Automatically migrate the old configuration file (#794)

* Automatically migrate the old configuration file

* Fixed git.io links

* credentials.json => auth.json

* Let the user know

* Removed trailing dot

readme.md

@@ -162,7 +162,7 @@ directory upon first running.
 There, two files can be found:
 
 - `config.json`
-- `credentials.json`
+- `auth.json`
 
 ## Implementation notes
 

src/get-default-auth-cfg.js

@@ -1,7 +1,28 @@
-const getDefaultAuthCfg = () => ({
-  _:
-    'This is your Now credentials file. DON\'T SHARE! More: https://git.io/v7dds',
-  credentials: []
-})
+// Native
+const { join } = require('path')
+const { homedir } = require('os')
 
-module.exports = getDefaultAuthCfg
+// Packages
+const { readJSON } = require('fs-extra')
+
+module.exports = async () => {
+  let migrated = false
+
+  const config = {
+    _: 'This is your Now credentials file. DON\'T SHARE! More: https://git.io/v5ECz',
+    credentials: []
+  }
+
+  try {
+    const {token} = await readJSON(join(homedir(), '.now.json'))
+
+    config.credentials.push({
+      provider: 'sh',
+      token
+    })
+
+    migrated = true
+  } catch (err) {}
+
+  return {config, migrated}
+}

src/get-default-cfg.js

@@ -1,6 +1,26 @@
-const getDefaultCfg = () => ({
-  _:
-    'This is your Now config file. See `now config help`. More: https://git.io/v7dds'
-})
+// Native
+const { join } = require('path')
+const { homedir } = require('os')
 
-module.exports = getDefaultCfg
+// Packages
+const { readJSON } = require('fs-extra')
+
+module.exports = async () => {
+  let migrated = false
+
+  const config = {
+    _: 'This is your Now config file. See `now config help`. More: https://git.io/v5ECz'
+  }
+
+  try {
+    const sh = await readJSON(join(homedir(), '.now.json'))
+
+    delete sh.lastUpdate
+    delete sh.token
+
+    Object.assign(config, { sh })
+    migrated = true
+  } catch (err) {}
+
+  return {config, migrated}
+}

src/get-now-dir.js

@@ -1,3 +1,4 @@
+// Native
 const { homedir } = require('os')
 const { join } = require('path')
 

src/get-welcome.js

@@ -1,7 +1,10 @@
+// Packages
+const { gray, bold } = require('chalk')
+
+// Utilities
 const cmd = require('./util/output/cmd')
 const li = require('./util/output/list-item')
 const link = require('./util/output/link')
-const { gray, bold } = require('chalk')
 
 // prettier-disable
 const getWelcome = (currentProvider, providers) =>

src/now.js

@@ -2,17 +2,19 @@
 //@flow
 
 // Native
-const { join } = require('path')
+const { join, basename } = require('path')
 
 // Packages
 const debug = require('debug')('now:main')
 const { existsSync } = require('fs-extra')
 const mkdirp = require('mkdirp-promise')
 const mri = require('mri')
+const chalk = require('chalk')
 
 // Utilities
 const error = require('./util/output/error')
 const param = require('./util/output/param')
+const info = require('./util/output/info')
 const getWelcome = require('./get-welcome')
 const getNowDir = require('./get-now-dir')
 const getDefaultCfg = require('./get-default-cfg')
@@ -79,6 +81,7 @@ const main = async (argv_) => {
     }
   }
 
+  let migrated = false
   let configExists
 
   try {
@@ -122,7 +125,11 @@ const main = async (argv_) => {
       return
     }
   } else {
-    config = getDefaultCfg()
+    const results = await getDefaultCfg()
+
+    config = results.config
+    migrated = results.migrated
+
     try {
       configFiles.writeToConfigFile(config)
     } catch (err) {
@@ -213,7 +220,10 @@ const main = async (argv_) => {
       return
     }
   } else {
-    authConfig = getDefaultAuthCfg()
+    const results = await getDefaultAuthCfg()
+
+    authConfig = results.config
+    migrated = results.migrated
 
     try {
       configFiles.writeToAuthConfigFile(authConfig)
@@ -229,6 +239,12 @@ const main = async (argv_) => {
     }
   }
 
+  // Let the user know we migrated the config
+  if (migrated) {
+    const directory = chalk.grey(join('~', basename(NOW_DIR)))
+    console.log(info(`Your credentials and configuration were migrated to ${directory}`))
+  }
+
   // the context object to supply to the providers or the commands
   const ctx = {
     config,