nixos-config/scripts/diff-drvs.py

84 lines
2.6 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.load(open(old_drv))
new_derivation = json.load(open(new_drv))
packages = {}
def get_name(drv):
if "pname" in drv["env"]:
return drv["env"]["pname"]
name = drv["env"]["name"]
if "version" in drvData["env"]:
return name.removesuffix("-" + drvData["env"]["version"])
return name
for drv in old_derivation:
drvData = old_derivation[drv]
if not "pname" in drvData["env"] and not "name" in drvData["env"]:
continue
used_name = get_name(drvData)
if not "version" in drvData["env"]:
continue
version = drvData["env"]["version"]
if used_name in packages:
packages[used_name]["old"].add(version)
else:
packages[used_name] = {"old": {version}}
for drv in new_derivation:
drvData = new_derivation[drv]
if not "pname" in drvData["env"] and not "name" in drvData["env"]:
continue
used_name = get_name(drvData)
if not "version" in drvData["env"]:
continue
version = drvData["env"]["version"]
if used_name in packages:
if "new" in packages[used_name]:
packages[used_name]["new"].add(version)
else:
packages[used_name]["new"] = {version}
else:
packages[used_name] = {"new": {version}}
pkg_names = sorted(packages)
print("New packages")
for package in pkg_names:
if "new" in packages[package] and "old" not in packages[package]:
print(package + ": " + ", ".join(sorted(packages[package]["new"])))
print()
print("Old packages")
for package in pkg_names:
if "old" in packages[package] and "new" not in packages[package]:
print(package + ": " + ", ".join(sorted(packages[package]["old"])))
print()
print("Updated packages")
for package in pkg_names:
if "old" in packages[package] and "new" in packages[package]:
if packages[package]["old"] == packages[package]["new"]:
continue
common_versions = packages[package]["old"].intersection(
packages[package]["new"])
removed_versions = packages[package]["old"].difference(common_versions)
added_versions = packages[package]["new"].difference(common_versions)
common_versions_string = ", ".join(sorted(common_versions))
removed_versions_string = ", ".join(sorted(removed_versions))
added_versions_string = ", ".join(sorted(added_versions))
print(
f"{package}: [{removed_versions_string}] -> [{added_versions_string}] (common: {common_versions_string})"
)