Files
Pathfinder 3776dcb5a4 Snapper: no question on btrfs; vendor the SysGuides scripts
- On btrfs, snapshots + zstd compression now just happen (no prompt);
  --snapper=no remains the explicit opt-out.
- Vendor scripts/snapper-*.sh + config/snapper.actions from
  SysGuides/sysguides-snapper-fedora (MIT, upstream 0a28eb4) into
  vendor/snapper/ and install from there — no runtime clone of an
  external repo, and no dependency on exec bits (fixes the
  './install.sh: Permission denied' failure seen on the test VM).
- grub-btrfs still cloned at runtime from Antynea/grub-btrfs with the
  Fedora config applied; everything else is local now.
2026-10-27 12:37:18 +01:00

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#!/usr/bin/env bash
# snapper-post.sh
# ----------------
# Creates a POST snapshot after a DNF5 transaction completes.
#
# This script:
# - Retrieves stored PRE snapshot and description
# - Improves description using GUI package info (if available)
# - Applies SQLite WAL checkpoint fix for libdnf5
# - Creates the POST snapshot linked to the PRE snapshot
# - Cleans up temporary state files
#
# The WAL checkpoint is necessary on Fedora 44+ to reduce
# inconsistencies between filesystem state and RPM database.
#
# Project: sysguides-snapper-fedora
# Author: Madhu Desai (SysGuides)
# Website: https://sysguides.com
# GitHub: https://github.com/SysGuides/sysguides-snapper-fedora
PID="$1"
STATE_DIR="/run/snapper-actions"
DESC_FILE="$STATE_DIR/snapper_desc_${PID}"
PRE_FILE="$STATE_DIR/snapper_pre_${PID}"
GUI_FILE="$STATE_DIR/snapper_gui_${PID}"
# Load stored state (if available)
desc=$(cat "$DESC_FILE" 2>/dev/null || echo "")
pre=$(cat "$PRE_FILE" 2>/dev/null || echo "")
gui_pkg=$(cat "$GUI_FILE" 2>/dev/null || echo "")
# If no PRE snapshot exists, nothing to do
[[ -z "$pre" ]] && exit 0
# If GUI package info exists, improve snapshot description
if [[ -n "$gui_pkg" ]]; then
desc="$gui_pkg"
snapper -c root modify -d "$desc" "$pre" || true
fi
# Apply WAL checkpoint (best-effort; do not fail if it doesn't succeed)
/usr/local/bin/snapper-wal-checkpoint.sh || true
# Create POST snapshot linked to PRE snapshot
snapper -c root create -c number -t post \
--pre-number "$pre" -d "$desc"
# Clean up temporary state files
rm -f "$DESC_FILE" "$PRE_FILE" "$GUI_FILE"