From 391afc4d7a3874832477981499dc265da6ef264e Mon Sep 17 00:00:00 2001
From: NGPixel <github@ngpixel.com>
Date: Mon, 13 Feb 2017 00:59:52 -0500
Subject: [PATCH] Initial work for upgrade feature

---
 controllers/admin.js | 12 +++++++++++-
 libs/git.js          |  2 +-
 libs/system.js       | 42 ++++++++++++++++++++++++++++++++++++++++++
 package.json         |  2 ++
 4 files changed, 56 insertions(+), 2 deletions(-)
 create mode 100644 libs/system.js

diff --git a/controllers/admin.js b/controllers/admin.js
index e0643e62..6f87ad75 100644
--- a/controllers/admin.js
+++ b/controllers/admin.js
@@ -6,7 +6,7 @@ const Promise = require('bluebird')
 const validator = require('validator')
 const _ = require('lodash')
 const axios = require('axios')
-const moment = require('moment')
+const path = require('path')
 
 /**
  * Admin
@@ -234,4 +234,14 @@ router.get('/settings', (req, res) => {
   })
 })
 
+router.get('/settings/install', (req, res) => {
+  if (!res.locals.rights.manage) {
+    return res.render('error-forbidden')
+  }
+
+  let sysLib = require(path.join(ROOTPATH, 'libs/system.js'))
+  sysLib.install('v1.0-beta.5')
+  res.status(200).end()
+})
+
 module.exports = router
diff --git a/libs/git.js b/libs/git.js
index ffb5b299..c519aae7 100644
--- a/libs/git.js
+++ b/libs/git.js
@@ -186,7 +186,7 @@ module.exports = {
       })
     })
     .catch((err) => {
-      winston.error('[' + PROCNAME + '][GIT] Unable to push changes to remote!')
+      winston.error('[' + PROCNAME + '.Git] Unable to push changes to remote!')
       throw err
     })
   },
diff --git a/libs/system.js b/libs/system.js
new file mode 100644
index 00000000..75d09b79
--- /dev/null
+++ b/libs/system.js
@@ -0,0 +1,42 @@
+'use strict'
+
+const Promise = require('bluebird')
+const https = require('follow-redirects').https
+const fs = Promise.promisifyAll(require('fs-extra'))
+const path = require('path')
+const tar = require('tar')
+const zlib = require('zlib')
+const _ = require('lodash')
+
+module.exports = {
+
+  _remoteFile: 'https://github.com/Requarks/wiki/releases/download/{0}/wiki-js.tar.gz',
+  _installDir: '',
+
+  install (targetTag) {
+    let self = this
+
+    self._installDir = path.resolve(ROOTPATH, appconfig.paths.data, 'install')
+
+    return fs.ensureDirAsync(self._installDir).then(() => {
+      let remoteURL = _.replace(self._remoteFile, '{0}', targetTag)
+
+      return new Promise((resolve, reject) => {
+        https.get(remoteURL, resp => {
+          if (resp.statusCode !== 200) {
+            return reject(new Error('Remote file not found'))
+          }
+
+          resp.pipe(zlib.createGunzip())
+          .pipe(tar.Extract({ path: self._installDir }))
+          .on('error', err => reject(err))
+          .on('end', () => {
+            resolve(true)
+          })
+        })
+      }).then(() => {
+
+      })
+    })
+  }
+}
diff --git a/package.json b/package.json
index 227688fb..c011d143 100644
--- a/package.json
+++ b/package.json
@@ -52,6 +52,7 @@
     "farmhash": "^1.2.1",
     "file-type": "^4.0.0",
     "filesize.js": "^1.0.2",
+    "follow-redirects": "^1.2.1",
     "fs-extra": "^2.0.0",
     "git-wrapper2-promise": "^0.2.9",
     "highlight.js": "^9.9.0",
@@ -94,6 +95,7 @@
     "sticky-js": "^1.0.7",
     "stopword": "^0.1.1",
     "stream-to-promise": "^2.2.0",
+    "tar": "^2.2.1",
     "validator": "^6.2.0",
     "validator-as-promised": "^1.0.2",
     "winston": "^2.3.0"