Optionally skip initial sync from s3

Author: sivakumar-kailasam

README.md

@@ -24,4 +24,5 @@ The script pulls yuidoc build output from all Ember versions from Amazon S3, con
 
 
 ## To Generate docs for a specific project and/or version for development 
-You can do this by passing `--project ember/ember-data --version 2.11.1` as an argument to the index script. e.g., `yarn start -- --project ember --version 2.11.0`
+You can do this by passing `--project ember/ember-data --version 2.11.1` as an argument to the index script. e.g., `yarn start -- --project ember --version 2.11.0`.
+Setting `export SKIP_S3_SYNC=yes` will stop the generator from syncing existing docs from s3 in the beginning.

lib/s3-sync.js

@@ -12,7 +12,8 @@ http.globalAgent.maxSockets = https.globalAgent.maxSockets = 30
 const {
   AWS_ACCESS_KEY,
   AWS_SECRET_KEY,
-  AWS_SHOULD_PUBLISH
+  AWS_SHOULD_PUBLISH,
+  SKIP_S3_SYNC
 } = process.env
 
 const client = S3.createClient({
@@ -68,13 +69,17 @@ const downloadDir = (options, docName) => syncDir('download', options, docName)
 const uploadDir = (options, docName) => syncDir('upload', options, docName)
 
 module.exports.syncToLocal = function syncToLocal () {
-  return downloadDir(s3DocsDirOptions, 's3')
-  .then(() => downloadDir(jsonDocsDirOptions, 'json'))
+  if (!SKIP_S3_SYNC) {
+    return downloadDir(s3DocsDirOptions, 's3')
+    .then(() => downloadDir(jsonDocsDirOptions, 'json'))
+  }
+  return Promise.resolve()
 }
 
 module.exports.syncToS3 = function syncToS3 () {
   if (AWS_SHOULD_PUBLISH === 'yes') {
     return uploadDir(s3DocsDirOptions, 's3')
     .then(() => uploadDir(jsonDocsDirOptions, 'json'))
   }
+  return Promise.resolve()
 }