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Polish README for v2.1

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@ -2,16 +2,13 @@
This GitHub Action can be used to configure Gradle and optionally execute a Gradle build on any platform supported by GitHub Actions.
## Usage
## Use the action to setup Gradle
The following workflows will execute a Gradle build on ubuntu, macos and windows.
The only prerequisite is to have Java installed: you define the version of Java you need to run the build using the `actions/setup-java` action.
### Use the action to setup Gradle for later steps
If you have an existing workflow invoking Gradle, you can simply add an initial "Setup Gradle" Step to benefit from caching,
If you have an existing workflow invoking Gradle, you can add an initial "Setup Gradle" Step to benefit from caching,
build-scan capture and other features of the gradle-build-action.
All subsequent Gradle invocations will benefit from this initial setup, via `init` scripts added to the Gradle User Home.
```yaml
name: Run Gradle on PRs
on: pull_request
@ -34,54 +31,6 @@ jobs:
run: ./gradlew build
```
### Use the action to setup and execute Gradle
The `gradle-build-action` can also be used for the actual Gradle execution, by providing an `arguments` parameter.
The following workflow is effectively the same as the one above, without using a separate `run` step.
```yaml
name: Run Gradle on PRs
on: pull_request
jobs:
gradle:
strategy:
matrix:
os: [ubuntu-latest, macos-latest, windows-latest]
runs-on: ${{ matrix.os }}
steps:
- uses: actions/checkout@v2
- uses: actions/setup-java@v1
with:
java-version: 11
- name: Setup and execute Gradle build
uses: gradle/gradle-build-action@v2
with:
arguments: build
```
### Multiple Gradle executions in the same Job
It is possible to configure multiple Gradle executions to run sequentially in the same job.
The initial Action step will perform the Gradle setup.
```yaml
- uses: gradle/gradle-build-action@v2
with:
arguments: assemble
- uses: gradle/gradle-build-action@v2
with:
arguments: check
```
The same can be achieved with a single `gradle-build-action` step and multiple `run` steps.
```yaml
- uses: gradle/gradle-build-action@v2
- run: ./gradlew assemble
- run: ./gradlew check
```
## Why use the `gradle-build-action`?
It is possible to directly invoke Gradle in your workflow, and the `setup-java` action provides a simple way to cache Gradle dependencies.
@ -96,9 +45,9 @@ However, the `gradle-build-action` offers a number of advantages over this appro
The `gradle-build-action` is designed to provide these benefits with minimal configuration.
These features work both when Gradle is executed via the `gradle-build-action` and for any Gradle execution in subsequent steps.
## Use specific Gradle version
## Use a specific Gradle version
The `gradle-build-action` will download, install and run a specified Gradle version, adding this installed version to the PATH.
The `gradle-build-action` can download and install a specified Gradle version, adding this installed version to the PATH.
Downloaded Gradle versions are stored in the GitHub Actions cache, to avoid requiring downloading again later.
```yaml
@ -146,6 +95,41 @@ If the action is configured with an `arguments` input, then Gradle will execute
If no `arguments` are provided, the action will not execute Gradle, but will still cache Gradle state and configure build-scan capture for all subsequent Gradle executions.
```yaml
name: Run Gradle on PRs
on: pull_request
jobs:
gradle:
strategy:
matrix:
os: [ubuntu-latest, macos-latest, windows-latest]
runs-on: ${{ matrix.os }}
steps:
- uses: actions/checkout@v2
- uses: actions/setup-java@v1
with:
java-version: 11
- name: Setup and execute Gradle 'test' task
uses: gradle/gradle-build-action@v2
with:
arguments: test
```
### Multiple Gradle executions in the same Job
It is possible to configure multiple Gradle executions to run sequentially in the same job.
The initial Action step will perform the Gradle setup.
```yaml
- uses: gradle/gradle-build-action@v2
with:
arguments: assemble
- uses: gradle/gradle-build-action@v2
with:
arguments: check
```
### Gradle command-line arguments
The `arguments` input can used to pass arbitrary arguments to the `gradle` command line.