# Data collection

By default, Earthly collects anonymized data which we use for measuring performance of the earthly command.

## Installation ID

Earthly will create a universally unique installation ID (UUID v4) under `~/.earthly/install_id`, which is used to track each installation. This ID is randomly created and does not contain any personal data.

## Anonymized data

In addition to the installation ID, earthly will also collect a one-way-hash of the git repository name.

## CI platform

Earthly applies some heuristics to determine if it is running in a CI system, and will report which CI system is detected (e.g. GitHub Actions, Circle CI, Travis CI, Jenkins, etc).

## Command and exit code

Earthly will report which command was run (e.g. build, prune, etc), the execution time, and corresponding exit code. Command line arguments are *not* captured.

## Disabling analytics

To disable the collection of data, set the `disable_analytics` option to `true` under the global config file `~/.earthly/config.yml`.

For example:

```yaml
global:
    disable_analytics: true
```

This option is documented in the [Earthly configuration file page](https://docs.earthly.dev/earthly-0.7/docs/earthly-config).