Merge pull request #1188 from CircleCI-Public/fix/snapcraft-credentials-file

bring back manually decoding `SNAPCRAFT_LOGIN_FILE`

Author: jackieg017

.circleci/config.yml

@@ -268,6 +268,8 @@ jobs:
             # To refresh: run `snapcraft login` and `snapcraft export-login creds`
             # inside cibuilds/snapcraft:stable, then `cat creds | base64 | tr -d '\n'`
             # and store the output as SNAPCRAFT_LOGIN_FILE in CircleCI project settings.
+            mkdir -p .snapcraft
+            echo $SNAPCRAFT_LOGIN_FILE | base64 --decode --ignore-garbage > .snapcraft/snapcraft.cfg
             snapcraft push *.snap --release stable
 
   chocolatey-deploy: