move cleanup_globe_history from ultrafeeder container to tar1090 cont…

…ainer

README.md

@@ -458,6 +458,7 @@ Where the default value is "Unset", `readsb`'s default will be used.
 | `READSB_STATS_EVERY`          | Number of seconds between showing and resetting stats.                                                                         | `--stats-every=<sec>`          | Unset   |
 | `READSB_STATS_RANGE`          | Set this to any value to collect range statistics for polar plot.                                                              | `--stats-range`                | Unset   |
 | `READSB_RANGE_OUTLINE_HOURS`  | Change which past timeframe the range outline is based on                                                                      | `--range-outline-hours`        | `24`    |
+| `MAX_GLOBE_HISTORY`           | Maximum number of days that `globe_history` data (used to produce heatmaps and ptracks) is retained. Note - this parameter doesn't affect the data used to produce `graphs1090` statistics | | Unset |
 
 ### AutoGain for RTLSDR Devices
 

rootfs/etc/s6-overlay/s6-rc.d/cleanup_globe_history/run

@@ -0,0 +1,2 @@
+#!/bin/sh
+exec /etc/s6-overlay/scripts/cleanup_globe_history

rootfs/etc/s6-overlay/s6-rc.d/cleanup_globe_history/type

@@ -0,0 +1 @@
+longrun

rootfs/etc/s6-overlay/scripts/cleanup_globe_history

@@ -0,0 +1,47 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash disable=SC2015,SC2016,SC1091,SC2001,SC2154
+
+#---------------------------------------------------------------------------------------------
+# Script to remove Globe_History files older than xxx days - this to ensure that the disk 
+# doesn't fill up with (unwanted) history files)
+
+# Copyright (C) 2023-2024, Ramon F. Kolb (kx1t) and contributors
+# Core script copyright and provided by Matthias Wirth (wiedehopf), used with permission
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with this program.
+# If not, see <https://www.gnu.org/licenses/>.
+#---------------------------------------------------------------------------------------------
+
+source /scripts/common
+
+if [[ -z "$MAX_GLOBE_HISTORY" ]]; then
+    "${s6wrap[@]}" echo "MAX_GLOBE_HISTORY not set - we will not expire any globe_history files"
+    exec sleep infinity
+fi
+
+cutoffepoch="$(date -d"-${MAX_GLOBE_HISTORY} days" +%s)"
+
+"${s6wrap[@]}" echo "Purging globe_history older than $MAX_GLOBE_HISTORY days (before $(date -d"-${MAX_GLOBE_HISTORY} days" +%d-%b-%Y))"
+for dir in $(find /var/globe_history -maxdepth 3 -mindepth 3 -type d | grep -o -E -e '[0-9]{4}/[0-9]{2}/[0-9]{2}$'); do
+    if (( $(date -d "$dir" +%s) < cutoffepoch )); then
+        "${s6wrap[@]}" echo Removing "/var/globe_history/$dir"
+        rm -rf "/var/globe_history/$dir"
+    fi
+done
+
+# delete empty year / month directories
+# make sure the directories haven't been touched for 3 days so freshly created directories aren't removed
+# this will also delay deletion of empty parent directories by 3 days after their contents have been removed but that's fine
+find /var/globe_history/ -mindepth 1 -maxdepth 2 -type d -empty -mtime +3 -delete
+
+"${s6wrap[@]}" echo "Done - next purge will be in 24 hours"
+exec sleep 24h