Size tests

installer/functions

@@ -239,3 +239,60 @@ websocketcommand() {
         echo "EError timeout"
     fi
 }
+
+# Check space requirements on CHROOTS partition
+# $1: the partition's minimum size threshold
+# $2: the partition's minimum available space threshold
+check_space() {
+    local part=${CHROOTS:-/usr/local}
+    df -m $part | awk 'FNR == 2 {print $2,$4,$6}' |\
+    while read -r size avail mp; do
+        if [ "$size" -lt "$1" ]; then
+            local size_gb="$((${size}/1000))GB"
+            echo "WARNING: Your CHROOTS partition is rather small (${size_gb})."
+            echo "WARNING: Usually $((${1}/1000))GB or more is needed. "
+        #   error 1 "ERROR: Choose another partition then try again..."
+            return 1
+        elif [ "$avail" -lt "$2" ]; then
+            local avail_gb="$((${avail}/1000))GB"
+            echo "WARNING: Your available space for CHROOTS is rather small (${avail_gb})."
+            echo "WARNING: Usually $((${2}/1000))GB or more is needed. "
+        #   error 1 "ERROR: Free up more space then try again..."
+            return 2
+        else
+        #   echo "Your space requirements for CHROOTS have been met."
+            return 0
+        fi
+    done
+}
+
+# Check if partition 7 / ROOT-C (ChrUbuntu) has been resized
+# normally called when space requirements on the CHROOTS partiton aren't met
+check_chrubuntu() {
+    local disk=$(rootdev -s -d)
+    local chrubuntu_part=$(rootdev -s | sed 's/.$/7/')
+    local chrubuntu_size=$(cgpt show -i7 -s ${disk})
+    if [ "$chrubuntu_size" -gt 1 ]; then
+        echo "WARNING: Partiton 7, normally used for ChrUbuntu, has been resized"
+        local tmp="`mktemp -d --tmpdir=/tmp 'check-chrubuntu.XXX'`"
+        local unmount="umount -l '$tmp' && rmdir '$tmp'"
+    #   addtrap "$unmount"
+        mount $chrubuntu_part "$tmp" 2>/dev/null
+        df -m "$tmp" | awk 'FNR == 2 {print $2,$3,$4}' |\
+        while read -r size used avail; do
+            local chrubuntu_size_gb="$((${size}/1000))GB"
+            local chrubuntu_used_gb="$((${used}/1000))GB"
+            local chrubuntu_avail_gb="$((${avail}/1000))GB"
+            echo "WARNING: to ${chrubuntu_size_gb}, it's using ${chrubuntu_used_gb}, and ${chrubuntu_avail_gb} is available for your use..."
+        done
+        distrib="$(grep 'DISTRIB_DESCRIPTION=' "$tmp/etc/lsb-release" 2>/dev/null | cut -d= -f2)"
+        if [ -n "$distrib" ]; then
+            echo "WARNING: Also, it has $distrib installed."
+        fi
+    #   undotrap
+        eval "$unmount"
+        return 1
+    else
+        return 0
+    fi
+}

installer/main.sh

@@ -14,6 +14,8 @@ INSTALLERDIR="$SCRIPTDIR/installer"
 HOSTBINDIR="$SCRIPTDIR/host-bin"
 TARGETSDIR="$SCRIPTDIR/targets"
 SRCDIR="$SCRIPTDIR/src"
+PART_AVAIL_MIN=2000 # in MB
+PART_SIZE_MIN=4000  # in MB
 
 ARCH=''
 BOOTSTRAP_RELEASE=''
@@ -366,6 +368,15 @@ addtrap "stty echo 2>/dev/null"
 BIN="$PREFIX/bin"
 CHROOTS="$PREFIX/chroots"
 
+# Check if space requirements have been met
+# if not, check for chrubuntu
+#PART_AVAIL_MIN=200000 # in MB !!! TEST VALUE
+#PART_SIZE_MIN=400000  # in MB !!! TEST VALUE
+if ! check_space "$PART_SIZE_MIN" "$PART_AVAIL_MIN"; then
+    check_chrubuntu
+#   exit 1 # Don't exit, just spit out out warnings
+fi
+
 if [ -z "$RESTOREBIN" ]; then
     # Fix NAME if it was not specified.
     CHROOT="$CHROOTS/${NAME:="${RELEASE:-"$DEFAULTRELEASE"}"}"