feat: Initial commit

Dockerfile

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+FROM google/cloud-sdk:alpine
+
+LABEL "com.github.actions.name"="GCP Storage Sync"
+LABEL "com.github.actions.description"="Sync a directory to an GCP Storage repository"
+LABEL "com.github.actions.icon"="refresh-cw"
+LABEL "com.github.actions.color"="blue"
+
+LABEL version="1.0.0"
+LABEL repository="https://github.com/savi2w/gcp-storage-sync"
+LABEL homepage="https://savi2w.moe/"
+LABEL maintainer="Weslen Guerreiro <savi2w@icloud.com>"
+
+ADD entrypoint.sh /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]

LICENSE

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+MIT License
+
+Copyright (c) 2023 Weslen Guerreiro
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# GitHub Action to GCP Storage Bucket
+
+This simple action uses the [gsutil tool](https://cloud.google.com/storage/docs/gsutil) to sync a directory (either from your repository or generated during your workflow) with a remote GCP Storage bucket
+
+## Usage
+
+### `workflow.yml`
+
+Place in a `.yml` file such as this one in your `.github/workflows` folder. [Refer to the documentation on workflow YAML syntax here.](https://help.github.com/en/articles/workflow-syntax-for-github-actions)
+
+Mostly [`gsutil rsync` flags](https://cloud.google.com/storage/docs/gsutil/commands/rsync) are optional to allow for maximum customizability and must be provided by you via `args:`
+
+#### Example
+
+- `-d` mirror source and destination. [See.](https://cloud.google.com/storage/docs/gsutil/commands/rsync#using--d-option-with-caution-to-mirror-source-and-destination)
+
+```yaml
+name: gcp-storage-sync
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: savi2w/gcp-storage-sync@main
+        with:
+          args: -d
+        env:
+          GCP_SERVICE_ACCOUNT_KEY_FILE: ${{ secrets.GCP_SERVICE_ACCOUNT_KEY_FILE }}
+          GCP_STORAGE_BUCKET: ${{ secrets.GCP_STORAGE_BUCKET }}
+          SOURCE_DIR: "public"
+```
+
+### Configuration
+
+The following settings must be passed as environment variables as shown in the example. Sensitive information, especially `GCP_SERVICE_ACCOUNT_KEY_FILE`, should be [set as encrypted secrets](https://help.github.com/en/articles/virtual-environments-for-github-actions#creating-and-using-secrets-encrypted-variables) — otherwise, they'll be public to anyone browsing your repository's source code and CI logs
+
+| Key | Value | Suggested Type | Required | Default |
+| ------------- | ------------- | ------------- | ------------- | ------------- |
+| `GCP_SERVICE_ACCOUNT_KEY_FILE` | Your JSON GCP service account key file. [More info here](https://cloud.google.com/storage/docs/authentication/managing-hmackeys) | `Secret ENV` | **Yes** | N/A |
+| `GCP_STORAGE_BUCKET` | Your GCP Storage bucket name For example, `my-project` | `Secret ENV` | **Yes** | N/A |
+| `SOURCE_DIR` | The local directory (or file) you wish to sync/upload to GCP Storage. For example, `public` | `ENV` | **Yes** | N/A |
+| `DEST_DIR` | The directory inside of the GCP Storage bucket you wish to sync/upload to. For example, `my_project/assets`. Defaults to the root of the bucket | `ENV` | No | `/` (root of bucket) |
+
+## License
+
+This project is distributed under the [MIT license](LICENSE)

action.yml

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+name: "GCP Storage Sync"
+description: "Sync a directory to an GCP Storage repository"
+author: savi2w
+runs:
+  using: docker
+  image: Dockerfile
+branding:
+  icon: refresh-cw
+  color: blue

entrypoint.sh

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+#!/bin/sh
+
+set -e
+
+if [ -z "$GCP_STORAGE_BUCKET" ]; then
+  echo "GCP_STORAGE_BUCKET is not set. Quitting."
+  exit 1
+fi
+
+if [ -z "$GCP_SERVICE_ACCOUNT_KEY_FILE" ]; then
+  echo "GCP_SERVICE_ACCOUNT_KEY_FILE is not set. Quitting."
+  exit 1
+fi
+
+echo $GCP_SERVICE_ACCOUNT_KEY_FILE > json_file.json
+gcloud auth activate-service-account --key-file json_file.json
+
+sh -c "gsutil -m rsync $* -r ${SOURCE_DIR} gs://${GCP_STORAGE_BUCKET}/${DEST_DIR}"
+
+gcloud auth revoke --all
+shred -zvu -n 5 json_file.json