Files
Varaverk/Transcodes/transcode_cleanup.sh
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2026-04-11 08:34:00 -04:00

235 lines
9.2 KiB
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#!/bin/bash
# -----------------------------------------------------------------------------------------------
# --------------------------------- Transcode Cleanup ------------------------------------------
# -----------------------------------------------------------------------------------------------
# Removes old inactive transcode files from both ramdisk and SSD fallback locations.
# Never deletes files belonging to active sessions or files being actively written.
# After cleanup checks if ramdisk usage dropped enough to flip symlink back to ramdisk.
#
# Safety rules — a file is eligible for deletion only if ALL conditions are true:
# 1. Older than TRANSCODE_MAX_AGE minutes (mtime)
# 2. Not currently open by any process (lsof check)
# 3. Not in an orphan grace period shorter than TRANSCODE_ORPHAN_AGE minutes
#
# Run every 5 minutes via cron/User Scripts plugin.
# All configuration in Master.conf under Transcode Manager section.
# Supports --dry-run to preview what would be deleted without making changes.
# -----------------------------------------------------------------------------------------------
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/../Master.conf"
source "$SCRIPT_DIR/../common.sh"
parse_args "$@"
STATE_FILE="/tmp/transcode_state.db"
# -----------------------------------------------------------------------------------------------
# ━━━ $ICON_GEAR Setup ━━━
# -----------------------------------------------------------------------------------------------
echo ""
echo "━━━ $ICON_GEAR Setup ━━━"
if [[ "$EUID" -ne 0 ]]; then
error "Must be run as root"
exit 1
fi
success "Running as root"
if ! command -v lsof >/dev/null 2>&1; then
warn "lsof not available — active file check will be skipped"
LSOF_AVAILABLE=false
else
LSOF_AVAILABLE=true
fi
# -----------------------------------------------------------------------------------------------
# ━━━ $ICON_SUMMARY Status ━━━
# -----------------------------------------------------------------------------------------------
if [[ "$SHOW_STATUS" == true ]]; then
echo ""
echo "━━━━━ $ICON_SUMMARY STATUS ━━━━━"
echo "$ICON_RAM Ramdisk: $RAMDISK_PATH"
echo "$ICON_DISK SSD fallback: $TRANSCODE_SSD"
echo "$ICON_TRASH Max age: ${TRANSCODE_MAX_AGE} minutes"
echo "$ICON_TRASH Orphan age: ${TRANSCODE_ORPHAN_AGE} minutes"
echo "$ICON_GEAR lsof check: $LSOF_AVAILABLE"
echo "$ICON_GEAR Dry Run: $DRY_RUN"
echo "━━━━━━━━━━━━━━━━━━━━━━━"
exit 0
fi
[[ "$DRY_RUN" == true ]] && warn "DRY RUN — no files will be deleted"
# -----------------------------------------------------------------------------------------------
# FILE SAFETY CHECK
# Returns 0 (safe to delete) if file is old enough and not actively open.
# Returns 1 (keep) if file should be preserved.
# -----------------------------------------------------------------------------------------------
is_safe_to_delete() {
local file="$1" max_age="$2"
# Check age using find — if find returns the file it's old enough
if ! find "$file" -maxdepth 0 -mmin +"$max_age" 2>/dev/null | grep -q .; then
return 1 # Too recent
fi
# Check if file is actively open by any process
if [[ "$LSOF_AVAILABLE" == true ]]; then
if lsof "$file" >/dev/null 2>&1; then
return 1 # File is open — being written or read
fi
fi
return 0 # Safe to delete
}
# -----------------------------------------------------------------------------------------------
# CLEANUP FUNCTION
# Scans a directory and removes eligible files.
# Returns bytes freed.
# -----------------------------------------------------------------------------------------------
cleanup_location() {
local location="$1" label="$2" max_age="$3"
local files_removed=0
local bytes_freed=0
local files_skipped=0
if [[ ! -d "$location" ]]; then
warn "$label does not exist — skipping"
return
fi
local file_count
file_count=$(find "$location" -type f 2>/dev/null | wc -l)
info "$ICON_TRASH $label: $file_count files to scan (age threshold: ${max_age}min)"
while IFS= read -r file; do
[[ -z "$file" ]] && continue
if is_safe_to_delete "$file" "$max_age"; then
local file_size
file_size=$(stat -c%s "$file" 2>/dev/null || echo 0)
if [[ "$DRY_RUN" == true ]]; then
warn "DRY RUN — would delete: $file"
((files_skipped++))
else
if rm -f "$file" 2>/dev/null; then
((files_removed++))
bytes_freed=$((bytes_freed + file_size))
log "Deleted: $file"
else
warn "Could not delete: $file"
((files_skipped++))
fi
fi
else
((files_skipped++))
log "Keeping: $file (active or too recent)"
fi
done < <(find "$location" -type f 2>/dev/null)
# Remove empty directories left behind
if [[ "$DRY_RUN" == false ]]; then
find "$location" -mindepth 1 -type d -empty -delete 2>/dev/null
fi
local freed_human
if (( bytes_freed > 1073741824 )); then
freed_human=$(awk "BEGIN {printf \"%.1fGB\", $bytes_freed / 1073741824}")
elif (( bytes_freed > 1048576 )); then
freed_human=$(awk "BEGIN {printf \"%.1fMB\", $bytes_freed / 1048576}")
else
freed_human="${bytes_freed}B"
fi
if [[ "$DRY_RUN" == true ]]; then
info "$label — dry run complete ($files_skipped files scanned)"
else
success "$label — removed $files_removed files, freed $freed_human, skipped $files_skipped"
fi
# Export for summary
LOCATION_REMOVED=$files_removed
LOCATION_FREED=$freed_human
LOCATION_SKIPPED=$files_skipped
}
# -----------------------------------------------------------------------------------------------
# ━━━ $ICON_TRASH Transcode Cleanup ━━━
# -----------------------------------------------------------------------------------------------
echo ""
echo "━━━ $ICON_TRASH Transcode Cleanup — $(date '+%Y-%m-%d %H:%M:%S') ━━━"
echo ""
START=$(date +%s)
TOTAL_REMOVED=0
TOTAL_SKIPPED=0
# Cleanup ramdisk
if mountpoint -q "$RAMDISK_PATH" 2>/dev/null; then
echo "━━━ $ICON_RAM Ramdisk ━━━"
RAMDISK_BEFORE=$(df "$RAMDISK_PATH" | awk 'NR==2 {print $3}')
cleanup_location "$RAMDISK_PATH" "Ramdisk" "$TRANSCODE_MAX_AGE"
TOTAL_REMOVED=$((TOTAL_REMOVED + LOCATION_REMOVED))
TOTAL_SKIPPED=$((TOTAL_SKIPPED + LOCATION_SKIPPED))
RAMDISK_FREED=$LOCATION_FREED
echo ""
else
warn "$ICON_RAM Ramdisk not mounted — skipping ramdisk cleanup"
RAMDISK_FREED="0B"
fi
# Cleanup SSD fallback
if [[ -d "$TRANSCODE_SSD" ]]; then
echo "━━━ $ICON_DISK SSD Fallback ━━━"
cleanup_location "$TRANSCODE_SSD" "SSD fallback" "$TRANSCODE_MAX_AGE"
TOTAL_REMOVED=$((TOTAL_REMOVED + LOCATION_REMOVED))
TOTAL_SKIPPED=$((TOTAL_SKIPPED + LOCATION_SKIPPED))
SSD_FREED=$LOCATION_FREED
echo ""
else
info "$ICON_DISK SSD fallback not found — skipping"
SSD_FREED="0B"
fi
# -----------------------------------------------------------------------------------------------
# Post-cleanup symlink check
# If ramdisk had space freed, check if manager should flip symlink back
# -----------------------------------------------------------------------------------------------
if [[ "$DRY_RUN" == false ]] && mountpoint -q "$RAMDISK_PATH" 2>/dev/null; then
RAMDISK_USED_KB=$(df "$RAMDISK_PATH" | awk 'NR==2 {print $3}')
LOW_THRESHOLD=$(awk "BEGIN {print $RAMDISK_LOW_GB * 1024 * 1024}")
if (( RAMDISK_USED_KB < LOW_THRESHOLD )); then
CURRENT_TARGET=$(grep "^current_target=" "$STATE_FILE" 2>/dev/null | cut -d'=' -f2)
if [[ "$CURRENT_TARGET" == "$TRANSCODE_SSD" ]]; then
info "$ICON_RAM Ramdisk has space after cleanup — triggering manager to flip back"
bash "$SCRIPT_DIR/transcode_manager.sh" --no-log
fi
fi
fi
END=$(date +%s)
# -----------------------------------------------------------------------------------------------
# ━━━ $ICON_SUMMARY Summary ━━━
# -----------------------------------------------------------------------------------------------
echo "━━━━━ $ICON_SUMMARY TRANSCODE CLEANUP SUMMARY ━━━━━"
echo "$ICON_RAM Ramdisk freed: $RAMDISK_FREED"
echo "$ICON_DISK SSD freed: $SSD_FREED"
echo "$ICON_TRASH Removed: $TOTAL_REMOVED files"
echo "$ICON_TRASH Skipped: $TOTAL_SKIPPED files (active or recent)"
echo "$ICON_TIME Duration: $(format_duration $((END - START)))"
if [[ "$DRY_RUN" == true ]]; then
echo "$ICON_WARN Status: DRY RUN — no files deleted"
else
echo "$ICON_DONE Status: $ICON_SUCCESS DONE"
if [[ "$TOTAL_REMOVED" -gt 0 ]]; then
notify "Transcode cleanup on $(hostname) — removed $TOTAL_REMOVED files (RAM: $RAMDISK_FREED SSD: $SSD_FREED)" "Transcode Cleanup" "normal"
fi
fi
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"