Add scripts for Void scripts

debian/mountpoints

@@ -1,25 +0,0 @@
-#!/bin/sh
-
-if test `id -u` -ne 0
-then
-    echo "$0 must be run as root."
-    return
-fi
-
-ROOT=test_environment
-
-check_mount() {
-    if mountpoint "$ROOT$1" > /dev/null
-    then
-        echo "$ROOT$1 already mounted."
-    else
-        mkdir -p "$ROOT$1"
-        mount -o bind "$1" "$ROOT$1"
-    fi
-}
-
-check_mount /proc
-check_mount /sys
-check_mount /dev
-check_mount /dev/pts
-

void/cleanup

@@ -0,0 +1,86 @@
+#!/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$1" -q
+    then
+        echo "$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" -q
+    then
+        echo "Unmounting $ROOT$1"
+        umount "$ROOT$1"
+    fi
+}
+
+add_mounts() {
+    add_mount /proc
+    add_mount /sys
+    add_mount /dev
+    add_mount /dev/pts
+    add_mount /tmp/.X11-unix
+}
+
+remove_mounts() {
+    remove_mount /tmp/.X11-unix
+    remove_mount /dev/pts
+    remove_mount /dev
+    remove_mount /sys
+    remove_mount /proc
+}
+
+remove_environment() {
+    if test -d "$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 -f xbps-static*.tar.xz
+    then
+        echo "Removing xbps-static tarballs."
+        rm xbps-static*.tar.xz
+    fi
+}
+
+case "$1" in
+    everything)  remove_everything ;;
+    mounts)      remove_mounts ;;
+    add_mounts)  add_mounts ;;
+    environment) remove_environment ;;
+    "")          remove_environment ;;
+esac
+

void/create_environment

@@ -0,0 +1,63 @@
+#!/bin/sh
+
+if test `id -u` -ne 0
+then
+    echo "$0 must be run as root."
+    return
+fi
+
+ROOT=test_environment
+FRESH=clean_environment
+
+TARBALL=xbps-static-static-0.59_5.x86_64-musl.tar.xz
+# See https://xmirror.voidlinux.org/ for other mirrors.
+REPO=https://ftp.swin.edu.au/voidlinux
+
+if test -e "$FRESH"
+then
+    echo "Void installation found at $FRESH. Good."
+else
+    if test -e "$TARBALL"
+    then
+        echo "Tarball found."
+    else
+        URL="$REPO/static/$TARBALL"
+        echo "Fetching tarball from $URL"
+        curl "$URL" -O
+    fi
+
+    mkdir "$FRESH"
+    tar xf "$TARBALL" -C "$FRESH"
+
+    mkdir -p "$FRESH/etc/xbps.d"
+    echo "repository=$REPO/current" > "$FRESH/etc/xbps.d/00-repository-main.conf"
+
+    XBPS_ARCH=x86_64 "$FRESH/usr/bin/xbps-install.static" -r "$FRESH" -S base-system
+fi
+
+if test -e "$ROOT"
+then
+    echo "Existing installation found at $ROOT, removing."
+    ./cleanup
+fi
+
+echo "Copying $FRESH to $ROOT."
+cp -r "$FRESH" "$ROOT"
+
+echo "Initializing $ROOT."
+
+chmod 1777 "$ROOT"
+chmod 1777 "$ROOT/bin"
+chmod 1777 "$ROOT/tmp"
+chmod 4755 "$ROOT/usr/bin/sudo"
+
+# Add DNS configs
+cp /etc/resolv.conf "$ROOT/etc/resolv.conf"
+
+cp -r install_scripts "$ROOT/root"
+
+./cleanup add_mounts
+
+chroot "$ROOT" /root/install_scripts/user_setup "$@"
+
+./cleanup mounts

void/enter_environment

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+if test `id -u` -ne 0
+then
+    echo "$0 must be run as root."
+    return
+fi
+
+ROOT=test_environment
+
+if test -e "$ROOT"
+then
+    echo "Using existing environment in $ROOT."
+else
+    ./create_environment
+fi
+
+./cleanup add_mounts
+
+chroot "$ROOT" sudo -iu user "$@"
+
+./cleanup mounts

void/install_scripts/user_setup

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# Overwrite locale setting specified before the chroot
+#export LANG=C
+#export LC_ALL=C
+
+# Add a passwordless sudoer
+useradd -m -s /bin/bash -G wheel user
+passwd -d user
+echo "user ALL=(ALL) NOPASSWD:ALL" > "/etc/sudoers.d/user"
+chmod 0440 "/etc/sudoers.d/user"
+
+# Copy the install scripts into their home directory
+cp -r /root/install_scripts /home/user
+#chown -R user:user /home/user/install_scripts
+
+# su to this new user... Or sudo -iu, since we want to pass in arguments too.
+cd /home/user
+sudo -iu user "$@"