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added hosted tool cache section

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Maxim Lobanov 2021-03-23 18:39:46 +03:00
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docs/advanced-usage.md
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@ -9,6 +9,7 @@
- [Testing against different platforms](#Testing-against-different-platforms)
- [Publishing using Apache Maven](#Publishing-using-Apache-Maven)
- [Publishing using Gradle](#Publishing-using-Gradle)
- [Hosted Tool Cache](#Hosted-Tool-Cache)
See [action.yml](../action.yml) for more details on task inputs.
@ -291,3 +292,10 @@ jobs:
env:
GITHUB_TOKEN: ${{ github.token }}
```
## Hosted Tool Cache
GitHub Hosted Runners have a tools cache that comes with some Java versions installed. This tools cache helps speed up runs and tool setup by not requiring any new downloads. There is an environment variable called `RUNNER_TOOL_CACHE` on each runner that describes the location of this tools cache and there is where you will find Java installed. `setup-java` works by taking a specific version of Java in this tools cache and adding it to PATH.
Currently, LTS versions of Adopt OpenJDK (`adopt`) are cached on the GitHub Hosted Runners.
The tools cache gets updated on weekly basis. For information regarding locally cached versions of Java on GitHub hosted runners, check out [GitHub Actions Virtual Environments](https://github.com/actions/virtual-environments).