From 969610b37567ce3416db2c0f99a4ca2f29b60afb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benedikt=20R=C3=B6tsch?= <benedikt@contentful.com>
Date: Thu, 21 Sep 2017 14:57:13 +0200
Subject: [PATCH] refactor(data-download): load latest release instead of
 cloning the data repo

---
 bin/download-content-model.js | 113 ++++++++++++++++++++++++----------
 package.json                  |   7 ++-
 2 files changed, 86 insertions(+), 34 deletions(-)

diff --git a/bin/download-content-model.js b/bin/download-content-model.js
index da63ebe..cc26c2f 100755
--- a/bin/download-content-model.js
+++ b/bin/download-content-model.js
@@ -1,42 +1,93 @@
 const fs = require('fs')
 const path = require('path')
+const zlib = require('zlib')
 
-const clone = require('git-clone')
-const ora = require('ora')
+const fetch = require('node-fetch')
+const Listr = require('listr')
+const tar = require('tar')
+const mkdirp = require('mkdirp')
 const rimraf = require('rimraf')
 
 const REPO_ROOT = path.resolve(__dirname, '..')
 const DATA_DIR = path.resolve(REPO_ROOT, 'data')
 
-const permissions = ora('Checking permissions to write files to the disk').start()
-
-fs.access(REPO_ROOT, fs.constants.W_OK, (err) => {
-  if (err) {
-    permissions.fail(`Script is unable to write to project directory. Please check your users file permissions for ${REPO_ROOT}`)
-    process.exit(1)
-  }
-
-  permissions.succeed()
-
-  const cloning = ora('Cloning content model').start()
-
-  rimraf(DATA_DIR, (error) => {
-    if (error) {
-      cloning.fail('An error happend while removing existing content model')
-      process.exit(1)
+const tasks = new Listr([
+  {
+    title: `Checking permissions to write files to the disk`,
+    task: (ctx) => {
+      return new Promise((resolve, reject) => {
+        fs.access(REPO_ROOT, fs.constants.W_OK, (err) => {
+          if (err) {
+            reject()
+            console.error(`Script is unable to write to project directory. Please check your users file permissions for ${REPO_ROOT}`)
+            process.exit(1)
+          }
+          resolve()
+        })
+      })
     }
-    clone(
-      'git@github.com:contentful/content-models.git',
-      DATA_DIR,
-      (error) => {
-        if (error) {
-          cloning.fail('An error happend during cloning')
-          console.log(error)
-          process.exit(1)
+  },
+  {
+    title: `Clean up directory`,
+    task: (ctx) => {
+      return new Promise((resolve, reject) => {
+        rimraf(DATA_DIR, (err) => {
+          if (err) {
+            reject(err)
+          }
+          resolve()
+        })
+      }).then(() => {
+        return new Promise((resolve, reject) => {
+          mkdirp(DATA_DIR, (err) => {
+            if (err) {
+              reject(err)
+            }
+            resolve()
+          })
+        })
+      })
+    }
+  },
+  {
+    title: `Fetching release information of contentful/content-models`,
+    task: (ctx) => {
+      return fetch(`https://api.github.com/repos/contentful/content-models/releases/latest`)
+      .then((response) => response.json())
+      .then((json) => {
+        ctx.latestReleaseInfo = json
+      })
+    }
+  },
+  {
+    title: `Downloading latest release of contentful/content-models`,
+    task: (ctx) => {
+      ctx.latestReleaseZipLocation = path.join(DATA_DIR, 'latest-release.tar.gz')
+      return fetch(ctx.latestReleaseInfo.tarball_url)
+      .then((response) => {
+        ctx.latestReleaseTarballStream = response.body
+      })
+    }
+  },
+  {
+    title: `Unpacking latest release of contentful/content-models`,
+    task: (ctx) => {
+      return new Promise((resolve, reject) => {
+        try {
+          ctx.latestReleaseTarballStream
+            .pipe(zlib.Unzip())
+            .pipe(new tar.Unpack({
+              cwd: DATA_DIR,
+              strip: 1
+            }))
+            .on('error', reject)
+            .on('close', resolve)
+        } catch (err) {
+          reject(err)
         }
+      })
+    }
+  }
+])
 
-        cloning.succeed('Cloned data to ./data\n')
-      }
-    )
-  })
-})
+tasks.run()
diff --git a/package.json b/package.json
index b80272e..7156a09 100644
--- a/package.json
+++ b/package.json
@@ -31,10 +31,11 @@
     "eslint-plugin-promise": "^3.4.1",
     "eslint-plugin-standard": "^2.0.1",
     "gh-pages": "^1.0.0",
-    "git-clone": "^0.1.0",
+    "listr": "^0.12.0",
+    "node-fetch": "^1.7.3",
     "now": "^5.3.0",
-    "ora": "^1.3.0",
-    "rimraf": "^2.6.1"
+    "rimraf": "^2.6.1",
+    "tar": "^4.0.1"
   },
   "config": {
     "commitizen": {