Update nixos version and change 301 to 302

.gitignore

@@ -158,4 +158,3 @@ cython_debug/
 
 # End of https://www.toptal.com/developers/gitignore/api/python
 
-channel_url.txt

app.py

@@ -7,14 +7,14 @@ from flask import Flask, request, jsonify, redirect
 from flask_restful import Api, Resource, reqparse
 
 # Read the current nixos channel URL from file channel_url.txt
-current_channel = open("channel_url.txt", "r").read()
+current_channel = open("/var/channel_url.txt", "r").read().strip()
 
 class Channel(Resource):
     def get(self):
-        """GET request returns the 301 redirect to the
-        current validated NixOS channel 
+        """GET request returns the 302 redirect to the
+        current validated NixOS channel
         """
-        return redirect(current_channel, code=301)
+        return redirect(current_channel, code=302)
 
     def post(self):
         """POST a new channel, save it to file and update
@@ -25,20 +25,22 @@ class Channel(Resource):
         args = parser.parse_args()
         channel = args['channel']
         # Save the new channel to file
-        with open("channel_url.txt", "w") as f:
+        with open("/var/channel_url.txt", "w") as f:
             f.write(channel)
         # Update the current channel
+        global current_channel
         current_channel = channel
         return jsonify({"message": "Channel updated"})
 
 class GetNewChannel(Resource):
     def post(self):
-        r = requests.get("https://nixos.org/channels/nixos-21.05")
+        r = requests.get("https://nixos.org/channels/nixos-22.11")
         channel = r.url
         # Save the new channel to file
-        with open("channel_url.txt", "w") as f:
+        with open("/var/channel_url.txt", "w") as f:
             f.write(channel)
         # Update the current channel
+        global current_channel
         current_channel = channel
         return jsonify({"message": "Channel updated", "channel": channel})
 

channel_url.txt

@@ -0,0 +1 @@
+https://nixos.org/channels/nixos-22.05

setup.py

@@ -0,0 +1,10 @@
+from setuptools import setup, find_packages
+
+setup(
+    name="nix-channel-redirect",
+    version="1.0.0",
+    packages=find_packages(),
+    scripts=[
+        "app.py",
+    ],
+)

shell.nix

@@ -1,24 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-let
-  sp-python = pkgs.python39.withPackages (p: with p; [
-    flask 
-    flask-restful 
-    setuptools
-    portalocker
-    pytest 
-    pytest-mock 
-    pytest-datadir
-    coverage
-    requests
-  ]);
-in
-pkgs.mkShell {
-  buildInputs = [
-    sp-python
-    pkgs.black
-  ];
-  shellHook = ''
-    PYTHONPATH=${sp-python}/${sp-python.sitePackages}
-    # maybe set more env-vars
-  '';
-}