nixos-config/scripts/diff-drvs.py

37 lines
1.2 KiB
Python

#!/usr/bin/env python3
import sys
import subprocess
import json
old_drv = sys.argv[1]
new_drv = sys.argv[2]
# Read both derivations recursively
old_derivation = json.loads(old_drv)
new_derivation = json.loads(new_drv)
packages = {}
for drv in old_derivation:
drvData = old_derivation[drv]
if "pname" in drvData["env"]:
packages[drvData["env"]["pname"]] = { "old": drvData["env"]["version"] }
for drv in new_derivation:
drvData = new_derivation[drv]
if "pname" in drvData["env"]:
if drvData["env"]["pname"] in packages:
packages[drvData["env"]["pname"]]["new"] = drvData["env"]["version"]
else:
packages[drvData["env"]["pname"]] = { "new": drvData["env"]["version"] }
for package in packages:
if "old" in packages[package] and "new" in packages[package]:
if packages[package]["old"] != packages[package]["new"]:
print(f"{package}: {packages[package]['old']} -> {packages[package]['new']}")
elif "old" in packages[package]:
print(f"{package}: {packages[package]['old']} -> removed")
elif "new" in packages[package]:
print(f"{package}: added -> {packages[package]['new']}")