check disk space at klipper startup

meta-opencentauri/images/cosmos-image-base.bb

@@ -47,6 +47,7 @@ CORE_IMAGE_EXTRA_INSTALL += "\
     afc \
     tmc-autotune \ 
     dragonbreath \
+    check-disk \
 "
 
 INITRAMFS_IMAGE = "core-image-tiny-initramfs"

meta-opencentauri/recipes-apps/klipper/files/shell.cfg

@@ -107,4 +107,16 @@ initial_duration: 60
 gcode:
     {% if printer.idle_timeout.state in ["Idle", "Ready"] and printer.print_stats.state == "standby" %}
         RUN_SHELL_COMMAND CMD=CHECK_FOR_UPDATES
-    {% endif %}
+    {% endif %}
+
+[gcode_shell_command CHECK_DISK]
+command: check-disk
+timeout: 5
+verbose: True
+
+[delayed_gcode check_disk_startup]
+initial_duration: 60
+gcode:
+        RUN_SHELL_COMMAND CMD=CHECK_DISK
+
+

meta-opencentauri/recipes-data/check-disk/check-disk_0.1.bb

@@ -0,0 +1,21 @@
+DESCRIPTION = "COSMOS Disk Space Checker"
+LICENSE = "GPL-3.0-only"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-3.0-only;md5=c79ff39f19dfec6d293b95dea7b07891"
+
+SRC_URI = "file://check-disk.sh"
+
+inherit allarch
+
+RDEPENDS:${PN} = " \
+    curl \
+    screen-actions \
+"
+
+do_install[vardeps] += "DISTRO_VERSION"
+
+do_install() {
+    install -d ${D}${bindir}
+    install -m 0755 ${UNPACKDIR}/check-disk.sh ${D}${bindir}/check-disk
+}
+
+FILES:${PN} = "${bindir}/check-disk"

meta-opencentauri/recipes-data/check-disk/files/check-disk.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+ALERTS=""
+while read -r line; do
+    if [ -n "$line" ]; then
+        ALERTS="${ALERTS}${line}. "
+    fi
+done < <(df -P /user-resource /board-resource | awk 'NR>1 {sub(/%/, "", $5); if ($5 > 90) print $6 " is at " $5 "%"}')
+
+if [ -n "$ALERTS" ]; then
+	uiprompt "Disk Space Warning" "ALERT: ${ALERTS}"
+fi
+
+
+