Google App Engineでデプロイ中に切断せざるを得なくなった後の問題を解消する方法 ref: http://qiita.com/takuan_osho/items/5b672ecd77e10f03f576

file0.txt

$ goapp deploy -oauth

09:22 PM Application: takuan-osho; version: 1
09:22 PM Host: appengine.google.com
09:22 PM 
Starting update of app: takuan-osho, version: 1
09:22 PM Getting current resource limits.
09:22 PM Scanning files on local disk.
09:22 PM Cloning 14 static files.
09:22 PM Cloning 90 application files.
^Cgoapp: caught SIGINT, waiting for appcfg.py to shut down
09:22 PM Interrupted.
error while running appcfg.py: exit status 1

file1.txt

$ goapp deploy -oauth
09:22 PM Application: takuan-osho; version: 1
09:22 PM Host: appengine.google.com
09:22 PM 
Starting update of app: takuan-osho, version: 1
09:22 PM Getting current resource limits.
09:22 PM Scanning files on local disk.
Error 409: --- begin server output ---
Another transaction by user shimizu.taku is already in progress for app: s~takuan-osho, version: 1. That user can undo the transaction with "appcfg rollback".
--- end server output ---
error while running appcfg.py: exit status 1

file2.txt

$ appcfg.py --oauth2 rollback .
09:22 PM Application: takuan-osho
09:22 PM Host: appengine.google.com
09:22 PM Rolling back the update.