selfprivacy-rest-api/selfprivacy_api/migrations/prepare_for_nixos_2305.py

59 lines
2.2 KiB
Python
Raw Normal View History

import os
import subprocess
from selfprivacy_api.migrations.migration import Migration
class MigrateToSelfprivacyChannelFrom2211(Migration):
"""Migrate to selfprivacy Nix channel.
For some reason NixOS 22.11 servers initialized with the nixos channel instead of selfprivacy.
This stops us from upgrading to NixOS 23.05
"""
def get_migration_name(self):
return "migrate_to_selfprivacy_channel_from_2211"
def get_migration_description(self):
return "Migrate to selfprivacy Nix channel from NixOS 22.11."
def is_migration_needed(self):
try:
output = subprocess.check_output(
["nix-channel", "--list"], start_new_session=True
)
output = output.decode("utf-8")
first_line = output.split("\n", maxsplit=1)[0]
return first_line.startswith("nixos") and (
first_line.endswith("nixos-22.11")
)
except subprocess.CalledProcessError:
return False
def migrate(self):
# Change the channel and update them.
# Also, go to /etc/nixos directory and make a git pull
current_working_directory = os.getcwd()
try:
print("Changing channel")
os.chdir("/etc/nixos")
subprocess.check_output(
[
"nix-channel",
"--add",
"https://channel.selfprivacy.org/nixos-selfpricacy",
"nixos",
]
)
subprocess.check_output(["nix-channel", "--update"])
nixos_config_branch = subprocess.check_output(
["git", "rev-parse", "--abbrev-ref", "HEAD"], start_new_session=True
)
if nixos_config_branch.decode("utf-8").strip() == "api-redis":
print("Also changing nixos-config branch from api-redis to master")
subprocess.check_output(["git", "checkout", "master"])
subprocess.check_output(["git", "pull"])
os.chdir(current_working_directory)
except subprocess.CalledProcessError:
os.chdir(current_working_directory)
print("Error")