feat(cli): --migrate support

Author: AuHau

src/cli/parser.js

@@ -19,6 +19,11 @@ const parser = yargs
     type: 'string',
     default: ''
   })
+  .option('migrate', {
+    desc: 'Allows automatic migrations',
+    type: 'boolean',
+    default: false
+  })
   .epilog(utils.ipfsPathHelp)
   .demandCommand(1)
   .fail((msg, err, yargs) => {

src/cli/utils.js

@@ -47,6 +47,7 @@ exports.getIPFS = (argv, callback) => {
   const IPFS = require('../core')
   const node = new IPFS({
     silent: argv.silent,
+    repoAutoMigrate: argv.migrate,
     repo: exports.getRepoPath(),
     init: false,
     start: false,
@@ -60,7 +61,11 @@ exports.getIPFS = (argv, callback) => {
   })
 
   node.on('error', (err) => {
-    throw err
+    if (err.code === 'ERR_INVALID_REPO_VERSION') {
+      err.message = 'Incompatible repo version. Migration needed. Pass --migrate for automatic migration'
+    }
+
+    callback(null, node, cleanup)
   })
 
   node.once('ready', () => {