remove mounts automatically

Also combined all these little mount and cleanup helpers into one `cleanup` script with flags.
2025-05-24 00:05:26 +10:00
parent 28de550295
commit 3898aa52be
6 changed files with 108 additions and 84 deletions
@@ -0,0 +1,90 @@
+#!/bin/sh
+
+if test `id -u` -ne 0
+then
+    echo "$0 must be run as root."
+    return
+fi
+
+FRESH=clean_environment
+ROOT=test_environment
+
+add_mount() {
+    if mountpoint "$ROOT$1" > /dev/null
+    then
+        echo "$ROOT$1 already mounted."
+    else
+        echo "Mounting $1 to $ROOT$1"
+        mkdir -p "$ROOT$1"
+        mount -o bind "$1" "$ROOT$1"
+    fi
+}
+
+remove_mount() {
+    if mountpoint "$ROOT$1" > /dev/null
+    then
+        echo "Unmounting $ROOT$1"
+        umount "$ROOT$1"
+    fi
+}
+
+add_mounts() {
+    add_mount /proc
+    add_mount /sys
+    add_mount /dev
+    add_mount /dev/pts
+}
+
+remove_mounts() {
+    remove_mount /dev/pts
+    remove_mount /dev
+    remove_mount /sys
+    remove_mount /proc
+}
+
+remove_environment() {
+    if test -d "$ROOT"
+    then
+        # Call this script that automatically unmounts the mount points too.
+        remove_mounts
+        echo "Removing $ROOT"
+        rm -r "$ROOT"
+    else
+        echo "No environment found at $ROOT. Doing nothing."
+    fi
+}
+
+remove_everything() {
+    if test -d "$ROOT"
+    then
+        # Call this script that automatically unmounts the mount points too.
+        remove_environment
+    fi
+
+    if test -d "$FRESH"
+    then
+        echo "Removing $FRESH"
+        rm -r "$FRESH"
+    fi
+
+    if test -d debootstrap
+    then
+        echo "Removing debootstrap"
+        rm -r debootstrap
+    fi
+
+    if test -f debootstrap.tar.gz
+    then
+        echo "Removing debootstrap.tar.gz"
+        rm debootstrap.tar.gz
+    fi
+}
+
+case "$1" in
+    everything)  remove_everything ;;
+    mounts)      remove_mounts ;;
+    add_mounts)  add_mounts ;;
+    environment) remove_environment ;;
+    "")          remove_environment ;;
+esac
+