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Add sync downstream option #49

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Add sync downstream option #49

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Add new env variable 'AWS_DOWNSTREAM'. If defined and it's value is '…
luislaugga Jan 14, 2021
873c02e
Update README.
luislaugga Jan 14, 2021
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5 changes: 3 additions & 2 deletions README.md
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Expand Up @@ -54,8 +54,9 @@ The following settings must be passed as environment variables as shown in the e
| `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_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) |
| `AWS_DOWNSTREAM` | Use your remote AWS directory to synchronize downstream (download) with your local directory. Set to `false` by default. | `env` | No | `us-east-1` |
| `SOURCE_DIR` | The local directory (or file) you wish to sync with 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 with. For example, `my_project/assets`. Defaults to the root of the bucket. | `env` | No | `/` (root of bucket) |


## License
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12 changes: 11 additions & 1 deletion entrypoint.sh
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Expand Up @@ -27,6 +27,16 @@ if [ -n "$AWS_S3_ENDPOINT" ]; then
ENDPOINT_APPEND="--endpoint-url $AWS_S3_ENDPOINT"
fi

# Use the AWS directory as source to sync downstream.
# Default to false if AWS_DOWNSTREAM not set.
if [ "$AWS_DOWNSTREAM" = true ]; then
SOURCE_PATH="s3://${AWS_S3_BUCKET}/${DEST_DIR}" # AWS S3 directory as source
DEST_PATH="${SOURCE_DIR:-.}" # Local directory as destination
else
SOURCE_PATH="${SOURCE_DIR:-.}" # Local directory as source
DEST_PATH="s3://${AWS_S3_BUCKET}/${DEST_DIR}" # AWS S3 directory as destination
fi

# Create a dedicated profile for this action to avoid conflicts
# with past/future actions.
# https://github.com/jakejarvis/s3-sync-action/issues/1
Expand All @@ -39,7 +49,7 @@ EOF

# Sync using our dedicated profile and suppress verbose messages.
# All other flags are optional via the `args:` directive.
sh -c "aws s3 sync ${SOURCE_DIR:-.} s3://${AWS_S3_BUCKET}/${DEST_DIR} \
sh -c "aws s3 sync ${SOURCE_PATH} ${DEST_PATH} \
--profile s3-sync-action \
--no-progress \
${ENDPOINT_APPEND} $*"
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