initial version

.gitignore

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+.idea/

10apt-summary

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+DPkg::Pre-Install-Pkgs { "/home/lukas/PycharmProjects/apt-summary/main.py"; };
+DPkg::Tools::Options::/home/lukas/PycharmProjects/apt-summary/main.py::Version "3";
+#DPkg::Tools::Options::/usr/bin/apt-listchanges::InfoFD "20";
+#Dir::Etc::apt-listchanges-main "listchanges.conf";
+#Dir::Etc::apt-listchanges-parts "listchanges.conf.d";

README.md

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+# Apt-Summary
+
+Show a quick summary of version changes grouped by major/minor/patch/etc. while doing an apt upgrade.
+
+## Setup
+
+Copy `10apt-summary` to `/etc/apt/apt.conf.d/` and adapt the path to `main.py` in the first two lines.

main.py

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+#!/usr/bin/env python3
+import fileinput
+import pydoc
+import shutil
+from enum import Enum
+from typing import Union
+
+from dataclasses import dataclass
+from packaging import version
+from packaging.version import Version, LegacyVersion
+
+# https://www.debian.org/doc/debian-policy/ch-controlfields.html#version
+
+SomeVersion = Union[LegacyVersion, Version]
+
+lines = list(fileinput.input())
+
+
+class UpdateType(Enum):
+    EPOCH = "Epoch"
+    MAJOR = "Major"
+    MINOR = "Minor"
+    PATCH = "Patch"
+    DEBIAN = "Debian"
+    OTHER = "Other"
+
+
+@dataclass
+class Update:
+    name: str
+    old_version: str
+    new_version: str
+    type: UpdateType
+
+
+def longest_value(table, column_no):
+    return max(len(row[column_no]) for row in table)
+
+
+def update_type(old_version_str: str, new_version_str: str, depth=0) -> UpdateType:
+    old_version = version.parse(old_version_str.replace(":", "!", 1))
+    new_version = version.parse(new_version_str.replace(":", "!", 1))
+
+    if isinstance(old_version, LegacyVersion) or isinstance(new_version, LegacyVersion):
+        if not depth:
+            return update_type(old_version_str.split("+")[0], new_version_str.split("+")[0], depth=depth + 1)
+        if depth == 1:
+            return update_type(old_version_str.split("~")[0], new_version_str.split("~")[0], depth=depth + 1)
+        return UpdateType.OTHER
+    if new_version.epoch != old_version.epoch:
+        return UpdateType.EPOCH
+    if new_version.major != old_version.major:
+        return UpdateType.MAJOR
+    if new_version.minor != old_version.minor:
+        return UpdateType.MINOR
+    if new_version.micro != old_version.micro:
+        return UpdateType.PATCH
+    if new_version.post != old_version.post:
+        return UpdateType.DEBIAN
+    if depth:
+        return UpdateType.DEBIAN
+    return UpdateType.OTHER
+
+
+assert lines[0] == "VERSION 3\n"
+
+updatelines = lines[lines.index('\n') + 1:]
+updates = []
+
+for line in updatelines:
+    pkg_name, old_version_str, old_arch, _, comparison, new_version_str, new_arch, _, filename = line.split()
+    if filename == "**CONFIGURE**":
+        continue
+    if old_version_str == "-" or new_version_str == "-":
+        continue
+    type = update_type(old_version_str, new_version_str)
+    updates.append(Update(
+        pkg_name,
+        old_version_str,
+        new_version_str,
+        type
+    ))
+
+text = ""
+for update in UpdateType:
+    sub_updates = [u for u in updates if u.type == update]
+    if not sub_updates:
+        continue
+    width = shutil.get_terminal_size((80, 20)).columns
+    text += update.value.center(width, "-")
+
+    for update in sub_updates:
+        text += (
+            f"{update.name:<{max(len(u.name) for u in sub_updates)}}"
+            " "
+            f"{update.old_version:<{max(len(u.old_version) for u in sub_updates)}}"
+            " ➜ "
+            f"{update.new_version:<{max(len(u.old_version) for u in sub_updates)}}"
+            "\n"
+        )
+
+print(text)