feat: Purge files before generating them

README.md

@@ -22,7 +22,8 @@ The following configuration generates static files using the `contributors` and
 }
 ```
 
-All static files are generated in the output path specified in the configuration.
+All static files are generated in the output path specified in the configuration.  
+The `purge` array in the configuration specifies which files should be deleted before generating the static files.
 
 ## Setup
 

config.example.json

@@ -36,5 +36,8 @@
 			}
 		}
 	],
-	"output": "static"
+	"output": "static",
+	"purge": [
+		"static"
+	]
 }

main.py

@@ -1,14 +1,24 @@
+from genericpath import isdir, isfile
+import os
+import shutil
 from app.config import load_config
 from app.generator import DefaultGeneratorProvider
 
 config = load_config()
 
-output = config["output"]
+output = config["output"] if "output" in config else "static"
-configs = config["configs"]
+purge = config["purge"] if "purge" in config else []
+generator_configs = config["configs"]
 
 generator_provider = DefaultGeneratorProvider()
 
-for config in configs:
+for path in purge:
+    if isdir(path):
+        shutil.rmtree(path)
+    elif isfile(path):
+        os.remove(path)
+
+for config in generator_configs:
     for generator_name in config["generators"]:
         generator = generator_provider.get(generator_name)
         if generator is None: