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RingOfStorms (Joshua Bell) 2025-12-17 14:51:38 -06:00
parent 5271c21c50
commit 2e669463fb
1 changed files with 32 additions and 9 deletions
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35
hosts/i001/impermanence-tools.sh
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@ -6,6 +6,7 @@ KEEP_PER_MONTH=1
KEEP_RECENT_WEEKS=4
KEEP_RECENT_COUNT=5
DRY_RUN=0
DIFF_MAX_DEPTH=0
usage() {
cat <<EOF
@ -14,7 +15,7 @@ bcache-impermanence - tools for managing impermanence snapshots
Usage:
bcache-impermanence gc [--snapshot-root DIR] [--keep-per-month N] [--keep-recent-weeks N] [--keep-recent-count N] [--dry-run]
bcache-impermanence ls [-nN] [--snapshot-root DIR]
bcache-impermanence diff [-s SNAPSHOT] [--snapshot-root DIR] [PATH_PREFIX...]
bcache-impermanence diff [-s SNAPSHOT] [--snapshot-root DIR] [--max-depth N] [PATH_PREFIX...]
Subcommands:
gc Run garbage collection on old root snapshots.
@ -252,12 +253,16 @@ EOF_SNAPS
}
browse_diff_tree() {
local snapshot_name snapshot_dir diff_list
local snapshot_name snapshot_dir diff_list initial_prefix
snapshot_name="$1"
snapshot_dir="$2"
diff_list="$3"
initial_prefix="${4-}"
local current_prefix=""
if [ -n "$initial_prefix" ]; then
current_prefix="$initial_prefix"
fi
while :; do
local children
@ -410,8 +415,13 @@ cmd_diff() {
[ "$#" -gt 0 ] || { echo "--snapshot-root requires a value" >&2; exit 1; }
SNAPSHOT_ROOT="$1"
;;
--max-depth)
shift
[ "$#" -gt 0 ] || { echo "--max-depth requires a value" >&2; exit 1; }
DIFF_MAX_DEPTH="$1"
;;
--help|-h)
echo "Usage: bcache-impermanence diff [-s SNAPSHOT] [--snapshot-root DIR] [PATH_PREFIX...]" >&2
echo "Usage: bcache-impermanence diff [-s SNAPSHOT] [--snapshot-root DIR] [--max-depth N] [PATH_PREFIX...]" >&2
exit 0
;;
--*)
@ -470,15 +480,22 @@ cmd_diff() {
rel="${prefix#/}"
[ -z "$rel" ] && rel="."
if [ "$DIFF_MAX_DEPTH" -gt 0 ] 2>/dev/null; then
(
cd "$snapshot_dir" && find "$rel" -mindepth 1 -print 2>/dev/null || true
cd "$snapshot_dir" && find "$rel" -mindepth 1 -maxdepth "$DIFF_MAX_DEPTH" -print 2>/dev/null || true
) | sed "s/^/A /" >>"$tmp"
(
cd / && find "$rel" -mindepth 1 -print 2>/dev/null || true
cd / && find "$rel" -mindepth 1 -maxdepth "$DIFF_MAX_DEPTH" -print 2>/dev/null || true
) | sed "s/^/B /" >>"$tmp"
else
(
cd "$snapshot_dir" && find "$rel" -mindepth 1 -print 2>/dev/null || true
) | sed "s/^/B /" >>"$tmp"
fi
done
if [ ! -s "$tmp" ]; then
echo "No files found under specified prefixes" >&2
rm -f "$tmp"
@ -529,7 +546,13 @@ cmd_diff() {
exit 0
fi
browse_diff_tree "$snapshot_name" "$snapshot_dir" "$diff_list"
local initial_prefix=""
if [ "$#" -eq 1 ]; then
# Single prefix: start tree at that path relative to /
initial_prefix="${1#/}"
fi
browse_diff_tree "$snapshot_name" "$snapshot_dir" "$diff_list" "$initial_prefix"
rm -f "$diff_list"
}