Improve documentation

- Provide summary of each action on main page
- Extract detailed documentation for each action
- Document usage with forked repositories
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This repository contains a set of GitHub Actions that are useful for building Gradle projects on GitHub.
## `gradle/actions/setup-gradle`
## The `setup-gradle` action
A simple wrapper around `gradle/gradle-build-action`, removing the deprecated `arguments` parameter (and thus removing the ability to _execute_ gradle).
The intention is to eventually deprecate `gradle-build-action` with this being the replacement.
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run: ./gradlew build
```
## `gradle/actions/dependency-submission`
See the [`gradle-build-action` documentation](https://github.com/gradle/gradle-build-action/blob/main/README.md) for a full description of this action.
Generates and submits a dependency graph for a Gradle project. This action is designed to be used in a standalone workflow.
The intention is to provide a simple, standardised way to enable Dependency Graph support for Gradle repositories,
with a long-term goal of having this functionality enabled by default for Gradle projects on GitHub.
## The `dependency-submission` action
Generates and submits a dependency graph for a Gradle project, allowing GitHub to alert about reported vulnerabilities in your project dependencies.
The following workflow will generate a dependency graph for a Gradle project and submit it immediately to the repository via the
Dependency Submission API. For most projects, this default configuration should be all that you need.
Simply add this as a new workflow file to your repository (eg `.github/workflows/dependency-submission.yml`).
### Example usage
```yaml
name: Dependency Submission
on:
workflow_dispatch:
push:
branches:
- main
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- name: Generate and submit dependency graph
uses: gradle/actions/dependency-submission@v0
```
See the [full action documentation](dependency-submission/README.md) for more advanced usage scenarios.

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# The `dependency-submission` action
Generates and submits a dependency graph for a Gradle project. This action is designed to be used in a standalone workflow.
The intention is to provide a simple, standardised way to enable Dependency Graph support for Gradle repositories,
with a long-term goal of having this functionality enabled by default for Gradle projects on GitHub.
## General usage
The following workflow will generate a dependency graph for a Gradle project and submit it immediately to the repository via the
Dependency Submission API. For most projects, this default configuration should be all that you need.
Simply add this as a new workflow file to your repository (eg `.github/workflows/dependency-submission.yml`).
```yaml
name: Dependency Submission
on:
push:
branches:
- main
permissions:
contents: write
jobs:
dependency-submission:
runs-on: ubuntu-latest
steps:
- name: Checkout sources
uses: actions/checkout@v4
- name: Generate and submit dependency graph
uses: gradle/actions/dependency-submission@v0
```
### Configuration parameters
In some cases, the default action configuration will not be sufficient, and additional action parameters will need to be specified.
See the example below for a summary, and the [Action Metadata file](../dependency-submission/action.yml) for a more detailed description of each input parameter.
```yaml
name: Dependency Submission with advanced config
on:
push:
branches:
- main
permissions:
contents: read
jobs:
dependency-submission:
runs-on: ubuntu-latest
steps:
- name: Checkout sources
uses: actions/checkout@v4
- name: Generate and save dependency graph
uses: gradle/actions/dependency-submission@v0
with:
# Use a particular Gradle version instead of the configured wrapper.
gradle-version: 8.6-rc-2
# The gradle project is not in the root of the repository.
build-root-directory: my-gradle-project
# Enable configuration-cache reuse for this build.
cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTION_KEY }}
# Do not attempt to submit the dependency-graph. Save it as a workflow artifact.
dependency-graph-action: generate-and-save
```
## Integrating the `dependency-review-action`
The GitHub [dependency-review-action](https://github.com/actions/dependency-review-action) helps you
understand dependency changes (and the security impact of these changes) for a pull request,
by comparing the dependency graph for the pull-request with that of the HEAD commit.
Example of a pull request workflow that executes a build for a pull request and runs the `dependency-review-action`:
```yaml
name: Dependency review for pull requests
on:
pull_request:
permissions:
contents: write
jobs:
dependency-submission:
runs-on: ubuntu-latest
steps:
- name: Checkout sources
uses: actions/checkout@v4
- name: Generate and submit dependency graph
uses: gradle/actions/dependency-submission@v0
dependency-review:
needs: dependency-submission
runs-on: ubuntu-latest
steps:
- name: Perform dependency review
uses: actions/dependency-review-action@v3
```
Note that the `dependency-submission` action submits the dependency graph at the completion of the workflow Job.
For this reason, the `dependency-review-action` must be executed in a dependent job, and not as a subsequent step in the job that generates the dependency graph.
## Usage with pull requests from public forked repositories
This `contents: write` permission is [not available for any workflow that is triggered by a pull request submitted from a public forked repository](https://docs.github.com/en/actions/security-guides/automatic-token-authentication#permissions-for-the-github_token).
This limitation is designed to prevent a malicious pull request from effecting repository changes.
Because of this restriction, we require 2 separate workflows in order to generate and submit a dependency graph:
1. The first workflow runs directly against the pull request sources and will `generate-and-save` the dependency graph.
2. The second workflow is triggered on `workflow_run` of the first workflow, and will `retrieve-and-submit` the previously saved dependency graph.
***Main workflow file***
```yaml
name: Generate and save dependency graph
on:
pull_request:
permissions:
contents: read # 'write' permission is not available
jobs:
dependency-submission:
runs-on: ubuntu-latest
steps:
- name: Checkout sources
uses: actions/checkout@v4
- name: Generate and submit dependency graph
uses: gradle/actions/dependency-submission@v0
with:
dependency-graph-action: generate-and-save
```
***Dependent workflow file***
```yaml
name: Retrieve and submit dependency graph
on:
workflow_run:
workflows: ['Generate and save dependency graph']
types: [completed]
permissions:
contents: write
jobs:
submit-dependency-graph:
runs-on: ubuntu-latest
steps:
- name: Retrieve and submit dependency graph
uses: gradle/actions/dependency-submission@v0
with:
dependency-graph-action: retrieve-and-submit # Download saved dependency-graph and submit
```
### Integrating `dependency-review-action` for pull requests from public forked repositories
To integrate the `dependency-review-action` into the pull request workflows above, a third workflow file is required.
This workflow will be triggered directly on `pull_request`, but will wait until the dependency graph results are
submitted before the dependency review can complete. The period to wait is controlled by the `retry-on-snapshot-warnings` input parameters.
Here's an example of a separate "Dependency Review" workflow that will wait for 10 minutes for the above PR check workflow to complete.
```yaml
name: dependency-review
on:
pull_request:
permissions:
contents: read
jobs:
dependency-review:
runs-on: ubuntu-latest
steps:
- name: 'Dependency Review'
uses: actions/dependency-review-action@v3
with:
retry-on-snapshot-warnings: true
retry-on-snapshot-warnings-timeout: 600
```
The `retry-on-snapshot-warnings-timeout` (in seconds) needs to be long enough to allow the entire `Generate and save dependency graph` and `Retrieve and submit dependency graph` workflows (above) to complete.
## Gradle version compatibility
Dependency-graph generation is compatible with most versions of Gradle >= `5.2`, and is tested regularly against
Gradle versions `5.2.1`, `5.6.4`, `6.0.1`, `6.9.4`, `7.1.1` and `7.6.3`, as well as all patched versions of Gradle 8.x.
A known exception to this is that Gradle `7.0`, `7.0.1` and `7.0.2` are not supported.

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# The `setup-gradle` action
This action is a simple wrapper around `gradle/gradle-build-action`, removing the deprecated `arguments` parameter (and thus removing the ability to _execute_ gradle).
The intention is to eventually deprecate `gradle-build-action` with this being the replacement.
### Example usage
```yaml
name: Build
on:
workflow_dispatch:
push:
jobs:
build:
runs-on: ubuntu-latest
steps:
- name: Checkout sources
uses: actions/checkout@v4
- name: Setup Gradle
uses: gradle/actions/setup-gradle@v0
- name: Build with Gradle
run: ./gradlew build
```
See the [`gradle-build-action` documentation](https://github.com/gradle/gradle-build-action/blob/main/README.md) for a full description of this action.