| [](https://github.com/dart-lang/package_config/actions?query=workflow%3A"Dart+CI"+branch%3Amaster) |
| [](https://pub.dev/packages/package_config) |
| [](https://pub.dev/packages/package_config/publisher) |
| |
| Support for working with **Package Configuration** files as described |
| in the Package Configuration v2 [design document](https://github.com/dart-lang/language/blob/master/accepted/2.8/language-versioning/package-config-file-v2.md). |
| |
| A Dart package configuration file is used to resolve Dart package names (e.g. |
| `foobar`) to Dart files containing the source code for that package (e.g. |
| `file:///Users/myuser/.pub-cache/hosted/pub.dartlang.org/foobar-1.1.0`). The |
| standard package configuration file is `.dart_tool/package_config.json`, and is |
| written by the Dart tool when the command `dart pub get` is run. |
| |
| The primary libraries of this package are |
| * `package_config.dart`: |
| Defines the `PackageConfig` class and other types needed to use |
| package configurations, and provides functions to find, read and |
| write package configuration files. |
| |
| * `package_config_types.dart`: |
| Just the `PackageConfig` class and other types needed to use |
| package configurations. This library does not depend on `dart:io`. |
| |
| The package includes deprecated backwards compatible functionality to |
| work with the `.packages` file. This functionality will not be maintained, |
| and will be removed in a future version of this package. |
