Stop auto-setting AWS_REGION to us-east-1

rely on the aws cli to detect and use the appropriate region for a bucket

README.md

@@ -38,7 +38,7 @@ jobs:
         AWS_S3_BUCKET: ${{ secrets.AWS_S3_BUCKET }}
         AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
         AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
-        AWS_REGION: 'us-west-1'   # optional: defaults to us-east-1
+        AWS_REGION: 'us-west-1'   # optional
         SOURCE_DIR: 'public'      # optional: defaults to entire repository
 ```
 
@@ -52,7 +52,7 @@ The following settings must be passed as environment variables as shown in the e
 | `AWS_ACCESS_KEY_ID` | Your AWS Access Key. [More info here.](https://docs.aws.amazon.com/general/latest/gr/managing-aws-access-keys.html) | `secret env` | **Yes** | N/A |
 | `AWS_SECRET_ACCESS_KEY` | Your AWS Secret Access Key. [More info here.](https://docs.aws.amazon.com/general/latest/gr/managing-aws-access-keys.html) | `secret env` | **Yes** | N/A |
 | `AWS_S3_BUCKET` | The name of the bucket you're syncing to. For example, `jarv.is` or `my-app-releases`. | `secret env` | **Yes** | N/A |
-| `AWS_REGION` | The region where you created your bucket. Set to `us-east-1` by default. [Full list of regions here.](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html#concepts-available-regions) | `env` | No | `us-east-1` |
+| `AWS_REGION` | The region where you created your bucket. Unset by default. [Full list of regions here.](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html#concepts-available-regions) | `env` | No | Unset/Automatic |
 | `AWS_S3_ENDPOINT` | The endpoint URL of the bucket you're syncing to. Can be used for [VPC scenarios](https://aws.amazon.com/blogs/aws/new-vpc-endpoint-for-amazon-s3/) or for non-AWS services using the S3 API, like [DigitalOcean Spaces](https://www.digitalocean.com/community/tools/adapting-an-existing-aws-s3-application-to-digitalocean-spaces). | `env` | No | Automatic (`s3.amazonaws.com` or AWS's region-specific equivalent) |
 | `SOURCE_DIR` | The local directory (or file) you wish to sync/upload to S3. For example, `public`. Defaults to your entire repository. | `env` | No | `./` (root of cloned repository) |
 | `DEST_DIR` | The directory inside of the S3 bucket you wish to sync/upload to. For example, `my_project/assets`. Defaults to the root of the bucket. | `env` | No | `/` (root of bucket) |

entrypoint.sh

@@ -17,11 +17,6 @@ if [ -z "$AWS_SECRET_ACCESS_KEY" ]; then
   exit 1
 fi
 
-# Default to us-east-1 if AWS_REGION not set.
-if [ -z "$AWS_REGION" ]; then
-  AWS_REGION="us-east-1"
-fi
-
 # Override default AWS endpoint if user sets AWS_S3_ENDPOINT.
 if [ -n "$AWS_S3_ENDPOINT" ]; then
   ENDPOINT_APPEND="--endpoint-url $AWS_S3_ENDPOINT"