[FR] Update to OpenAPI from CoreAPI (#4178)

* [FR] Update to OpenAPI from CoreAPI
Fixes #3226

* factor request function out

* add schema export task

* add api-docs

* add action to check if diff occured

* also wait for docstyle

* use full command

* add envs for inventree

* update inventree before running

* use relative path

* remove schema action

* remove tags to fit 3.0 parsers

* fix url base name for reloads

* revert change in plugin resolver

* remove unused tags

* add rapidoc too

* declare api regex

* fix as suggested by @martonmiklos in
https://github.com/inventree/InvenTree/pull/4178#discussion_r1167279443

* set inventree logo

* remove Rapidoc

tasks.py

@@ -88,6 +88,22 @@ def manage(c, cmd, pty: bool = False):
     ), pty=pty)
 
 
+def check_file_existance(filename: str, overwrite: bool = False):
+    """Checks if a file exists and asks the user if it should be overwritten.
+
+    Args:
+        filename (str): Name of the file to check.
+        overwrite (bool, optional): Overwrite the file without asking. Defaults to False.
+    """
+    if Path(filename).is_file() and overwrite is False:
+        response = input("Warning: file already exists. Do you want to overwrite? [y/N]: ")
+        response = str(response).strip().lower()
+
+        if response not in ['y', 'yes']:
+            print("Cancelled export operation")
+            sys.exit(1)
+
+
 # Install tasks
 @task
 def plugins(c):
@@ -305,13 +321,7 @@ def export_records(c, filename='data.json', overwrite=False, include_permissions
 
     print(f"Exporting database records to file '{filename}'")
 
-    if Path(filename).is_file() and overwrite is False:
-        response = input("Warning: file already exists. Do you want to overwrite? [y/N]: ")
-        response = str(response).strip().lower()
-
-        if response not in ['y', 'yes']:
-            print("Cancelled export operation")
-            sys.exit(1)
+    check_file_existance(filename, overwrite)
 
     tmpfile = f"{filename}.tmp"
 
@@ -621,3 +631,13 @@ def coverage(c):
 
     # Generate coverage report
     c.run('coverage html -i')
+
+
+@task(help={
+    'filename': "Output filename (default = 'schema.yml')",
+    'overwrite': "Overwrite existing files without asking first (default = off/False)",
+})
+def schema(c, filename='schema.yml', overwrite=False):
+    """Export current API schema."""
+    check_file_existance(filename, overwrite)
+    manage(c, f'spectacular --file {filename}')