*/
internal fun FileSystem.isCivilized(file: Path): Boolean {
  sink(file).use {
    try {
      delete(file)
      return true
    } catch (_: IOException) {
    }
  }
  delete(file)
  return false
}

/** Delete file we expect but don't require to exist. */
internal fun FileSystem.deleteIfExists(path: Path) {
  try {
    delete(path)
  } catch (fnfe: FileNotFoundException) {
    return

            try {
                Path configDir = Paths.get(System.getProperty(TestProperties.TEST_CONFIG_DIR));
                Iterator<Path> it = Files.newDirectoryStream(configDir).iterator();

                while ( it.hasNext() ) {
                    Path config = it.next();
                    loadConfigFile(config, applyMutations, configs);
                }

        }
        dictionaryManager.addCreator(this);
    }

    @Override
    protected DictionaryFile<? extends DictionaryItem> newDictionaryFile(final String id, final String path, final Date timestamp) {
        return new ProtwordsFile(id, path, timestamp).manager(dictionaryManager);
    }

        }
        dictionaryManager.addCreator(this);
    }

    @Override
    protected DictionaryFile<? extends DictionaryItem> newDictionaryFile(final String id, final String path, final Date timestamp) {
        return new SynonymFile(id, path, timestamp).manager(dictionaryManager);
    }

  override fun toString() = "input=$input output=$output"

  companion object {
    fun load(): List<WebPlatformToAsciiData> {
      val path = okHttpRoot / "okhttp/src/test/resources/web-platform-test-toascii.json"
      return SYSTEM_FILE_SYSTEM.read(path) {
        Json.decodeFromString<List<WebPlatformToAsciiData>>(readUtf8())
      }
    }
  }

# 全局依赖项

有时，我们要为整个应用添加依赖项。

通过与定义[*路径装饰器依赖项*](dependencies-in-path-operation-decorators.md){.internal-link target=_blank} 类似的方式，可以把依赖项添加至整个 `FastAPI` 应用。

这样一来，就可以为所有*路径操作*应用该依赖项：

```Python hl_lines="15"
{!../../docs_src/dependencies/tutorial012.py!}
```

[*路径装饰器依赖项*](dependencies-in-path-operation-decorators.md){.internal-link target=_blank} 一章的思路均适用于全局依赖项， 在本例中，这些依赖项可以用于应用中的所有*路径操作*。

## 为一组路径操作定义依赖项

                    "parameters": [
                        {
                            "required": True,
                            "schema": {"title": "File Path", "type": "string"},
                            "name": "file_path",
                            "in": "path",
                        }
                    ],
                }
            }
        },
        "components": {
            "schemas": {

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package config

// UI errors
var (
	ErrInvalidXLValue = newErrFn(
		"Invalid drive path",
		"Please provide a fresh drive for single drive MinIO setup",
		"MinIO only supports fresh drive paths",
	)

	ErrInvalidBrowserValue = newErrFn(
		"Invalid console value",
		"Please check the passed value",

* Tout est **automatiquement géré** par le framework
* Toutes les dépendances peuvent exiger des données d'une requêtes et **Augmenter les contraintes d'un path operation** et de la documentation automatique.
* **Validation automatique** même pour les paramètres de *path operation* définis dans les dépendances.
* Supporte les systèmes d'authentification d'utilisateurs complexes, les **connexions de base de données**, etc.

      "type": "bridge"
    },
    {
      "sysctl": {
        "net.core.somaxconn": "500"
      },
      "type": "tuning"
    },
    {
      "ambient_enabled": false,
      "cni_agent_run_dir": "/path/to/kubeconfig",
      "dns": {},
      "exclude_namespaces": [
        ""
      ],
      "ipam": {},
      "name": "istio-cni",
      "plugin_log_level": "debug",
      "type": "istio-cni"
    }
  ]