wsl2-systemd script

wsl2-systemd-script.sh

@@ -0,0 +1,90 @@
+#!/bin/bash
+
+if [ "$1" != "--force" ]; then
+    if [ -f /start-systemd-namespace ]; then
+        echo "It appears you have already installed the systemd hack."
+        echo "To forcibly reinstall, run this script with the \`--force\` parameter."
+        exit
+    fi
+    if [ -z "$WSL_DISTRO_NAME" ]; then
+        echo "It appears that you are not running on WSL."
+        echo "To forcibly install anyway, run this script with the \`--force\` parameter."
+        exit
+    fi
+fi
+
+#self_dir="$(dirname $0)"
+
+function interop_prefix {
+	win_location="/mnt/"
+	if [ -f /etc/wsl.conf ]; then
+		tmp="$(awk -F '=' '/root/ {print $2}' /etc/wsl.conf | awk '{$1=$1;print}')"
+		[ "$tmp" == "" ] || win_location="$tmp"
+		unset tmp
+	fi
+	echo "$win_location"
+
+	unset win_location
+}
+
+function sysdrive_prefix {
+	win_location="$(interop_prefix)"
+	hard_reset=0
+	for pt in $(ls "$win_location"); do
+		if [ $(echo "$pt" | wc -l) -eq 1 ]; then
+			if [ -d "$win_location$pt/Windows/System32" ]; then
+				hard_reset=1
+				win_location="$pt"
+				break
+			fi
+		fi 
+	done
+
+	if [ $hard_reset -eq 0 ]; then
+		win_location="c"
+	fi
+
+	echo "$win_location"
+
+	unset win_location
+	unset hard_reset
+}
+
+$SUDO_CMD hwclock -s
+$SUDO_CMD apt-get update && $SUDO_CMD apt-get install -yqq daemonize dbus-user-session fontconfig
+
+#$SUDO_CMD cp "$self_dir/start-systemd-namespace" /start-systemd-namespace
+#$SUDO_CMD cp "$self_dir/enter-systemd-namespace" /enter-systemd-namespace
+$SUDO_CMD chmod +x /enter-systemd-namespace
+
+$SUDO_CMD tee /etc/$SUDO_CMDers.d/systemd-namespace >/dev/null <<EOF
+Defaults        env_keep += WSLPATH
+Defaults        env_keep += WSLENV
+Defaults        env_keep += WSL_INTEROP
+Defaults        env_keep += WSL_DISTRO_NAME
+Defaults        env_keep += PRE_NAMESPACE_PATH
+Defaults        env_keep += PRE_NAMESPACE_PWD
+%$SUDO_CMD ALL=(ALL) NOPASSWD: /enter-systemd-namespace
+EOF
+
+if ! grep 'start-systemd-namespace' /etc/bash.bashrc >/dev/null; then
+  $SUDO_CMD sed -i 2a"# Start or enter a PID namespace in WSL2\nsource /start-systemd-namespace\n" /etc/bash.bashrc
+fi
+
+$SUDO_CMD rm -f /etc/systemd/user/sockets.target.wants/dirmngr.socket
+$SUDO_CMD rm -f /etc/systemd/user/sockets.target.wants/gpg-agent*.socket
+$SUDO_CMD rm -f /lib/systemd/system/sysinit.target.wants/proc-sys-fs-binfmt_misc.automount
+$SUDO_CMD rm -f /lib/systemd/system/sysinit.target.wants/proc-sys-fs-binfmt_misc.mount
+$SUDO_CMD rm -f /lib/systemd/system/sysinit.target.wants/systemd-binfmt.service
+
+if [ -f /proc/sys/fs/binfmt_misc/WSLInterop ] && [ "$(head -n1  /proc/sys/fs/binfmt_misc/WSLInterop)" == "enabled" ]; then
+  "$(interop_prefix)$(sysdrive_prefix)"/Windows/System32/cmd.exe /C setx WSLENV BASH_ENV/u
+  "$(interop_prefix)$(sysdrive_prefix)"/Windows/System32/cmd.exe /C setx BASH_ENV /etc/bash.bashrc
+else
+  echo
+  echo "You need to manually run the following two commands in Windows' cmd.exe:"
+  echo
+  echo "  setx WSLENV BASH_ENV/u"
+  echo "  setx BASH_ENV /etc/bash.bashrc"
+  echo
+fi