Upload to S3 as well.

build/tasks/publish-build-task.coffee

@@ -6,6 +6,7 @@ async = require 'async'
 fs = require 'fs-plus'
 GitHub = require 'github-releases'
 request = require 'request'
+AWS = require 'aws-sdk'
 
 grunt = null
 
@@ -210,7 +211,7 @@ deleteExistingAssets = (release, assetNames, callback) ->
   async.parallel(tasks, callback)
 
 uploadAssets = (release, buildDir, assets, callback) ->
-  upload = (release, assetName, assetPath, callback) ->
+  uploadToReleases = (release, assetName, assetPath, callback) ->
     options =
       uri: release.upload_url.replace(/\{.*$/, "?name=#{assetName}")
       method: 'POST'
@@ -221,15 +222,42 @@ uploadAssets = (release, buildDir, assets, callback) ->
 
     assetRequest = request options, (error, response, body='') ->
       if error? or response.statusCode >= 400
-        logError("Upload release asset #{assetName} failed", error, body)
+        logError("Upload release asset #{assetName} to Releases failed", error, body)
         callback(error ? new Error(response.statusCode))
       else
         callback(null, release)
 
     fs.createReadStream(assetPath).pipe(assetRequest)
 
+  uploadToS3 = (release, assetName, assetPath, callback) ->
+    s3Key = process.env.BUILD_ATOM_RELEASES_S3_KEY
+    s3Secret = process.env.BUILD_ATOM_RELEASES_S3_SECRET
+    s3Bucket = process.env.BUILD_ATOM_RELEASES_S3_BUCKET
+
+    unless s3Key && s3Secret && s3Bucket
+      callback(new Error('BUILD_ATOM_RELEASES_S3_KEY, BUILD_ATOM_RELEASES_S3_SECRET, and BUILD_ATOM_RELEASES_S3_BUCKET environment variables must be set.'))
+      return
+
+    s3Info =
+      accessKeyId: s3Key
+      secretAccessKey: s3Secret
+    s3 = new AWS.S3 s3Info
+
+    uploadParams =
+      Bucket: s3Bucket
+      ACL: 'public-read'
+      Key: "releases/#{assetName}"
+      Body: fs.createReadStream(assetPath)
+    s3.upload uploadParams, (error, data) ->
+      if error?
+        console.log("Upload release asset #{assetName} to S3 failed", error)
+        callback(error)
+      else
+        callback(null, release)
+
   tasks = []
   for {assetName} in assets
     assetPath = path.join(buildDir, assetName)
-    tasks.push(upload.bind(this, release, assetName, assetPath))
+    tasks.push(uploadToReleases.bind(this, release, assetName, assetPath))
+    tasks.push(uploadToS3.bind(this, release, assetName, assetPath))
   async.parallel(tasks, callback)

package.json

@@ -16,6 +16,7 @@
   "dependencies": {
     "async": "0.2.6",
     "atom-keymap": "^6.1.1",
+    "aws-sdk": "^2.2.18",
     "babel-core": "^5.8.21",
     "bootstrap": "^3.3.4",
     "cached-run-in-this-context": "0.4.0",