From b33c51c0a6c7c8a7b0c0a9a6ca101f874f2db3d1 Mon Sep 17 00:00:00 2001
From: kumavis <aaron@kumavis.me>
Date: Thu, 12 Jan 2017 01:17:05 -0800
Subject: migrations - introduce promise-based migrator

---
 app/scripts/migrations/002.js | 15 +++++++++------
 app/scripts/migrations/003.js | 16 +++++++++-------
 app/scripts/migrations/004.js | 17 ++++++++++-------
 3 files changed, 28 insertions(+), 20 deletions(-)

(limited to 'app/scripts/migrations')

diff --git a/app/scripts/migrations/002.js b/app/scripts/migrations/002.js
index 0b654f825..97f427d3a 100644
--- a/app/scripts/migrations/002.js
+++ b/app/scripts/migrations/002.js
@@ -1,13 +1,16 @@
+const version = 2
+
 module.exports = {
-  version: 2,
+  version,
 
-  migrate: function (data) {
+  migrate: function (meta) {
+    meta.version = version
     try {
-      if (data.config.provider.type === 'etherscan') {
-        data.config.provider.type = 'rpc'
-        data.config.provider.rpcTarget = 'https://rpc.metamask.io/'
+      if (meta.data.config.provider.type === 'etherscan') {
+        meta.data.config.provider.type = 'rpc'
+        meta.data.config.provider.rpcTarget = 'https://rpc.metamask.io/'
       }
     } catch (e) {}
-    return data
+    return Promise.resolve(meta)
   },
 }
diff --git a/app/scripts/migrations/003.js b/app/scripts/migrations/003.js
index 617c55c09..b25e26e01 100644
--- a/app/scripts/migrations/003.js
+++ b/app/scripts/migrations/003.js
@@ -1,15 +1,17 @@
-var oldTestRpc = 'https://rawtestrpc.metamask.io/'
-var newTestRpc = 'https://testrpc.metamask.io/'
+const version = 3
+const oldTestRpc = 'https://rawtestrpc.metamask.io/'
+const newTestRpc = 'https://testrpc.metamask.io/'
 
 module.exports = {
-  version: 3,
+  version,
 
-  migrate: function (data) {
+  migrate: function (meta) {
+    meta.version = version
     try {
-      if (data.config.provider.rpcTarget === oldTestRpc) {
-        data.config.provider.rpcTarget = newTestRpc
+      if (meta.data.config.provider.rpcTarget === oldTestRpc) {
+        meta.data.config.provider.rpcTarget = newTestRpc
       }
     } catch (e) {}
-    return data
+    return Promise.resolve(meta)
   },
 }
diff --git a/app/scripts/migrations/004.js b/app/scripts/migrations/004.js
index 1329a1eed..e72eef2b7 100644
--- a/app/scripts/migrations/004.js
+++ b/app/scripts/migrations/004.js
@@ -1,22 +1,25 @@
+const version = 4
+
 module.exports = {
-  version: 4,
+  version,  
 
-  migrate: function (data) {
+  migrate: function (meta) {
+    meta.version = version
     try {
-      if (data.config.provider.type !== 'rpc') return data
-      switch (data.config.provider.rpcTarget) {
+      if (meta.data.config.provider.type !== 'rpc') return Promise.resolve(meta)
+      switch (meta.data.config.provider.rpcTarget) {
         case 'https://testrpc.metamask.io/':
-          data.config.provider = {
+          meta.data.config.provider = {
             type: 'testnet',
           }
           break
         case 'https://rpc.metamask.io/':
-          data.config.provider = {
+          meta.data.config.provider = {
             type: 'mainnet',
           }
           break
       }
     } catch (_) {}
-    return data
+    return Promise.resolve(meta)
   },
 }
-- 
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