From 05a4a827e5c1395cc413102ff9cb830dc333e96b Mon Sep 17 00:00:00 2001
From: Pete Peteches McCabe <pete@peteches.co.uk>
Date: Mon, 23 Nov 2015 18:28:38 +0000
Subject: [PATCH] initial stab at systemd support for tmux-continuum

---
 continuum.tmux                                |  2 +
 scripts/handle_tmux_automatic_start.sh        | 10 ++++
 .../systemd_disable.sh                        | 10 ++++
 .../systemd_enable.sh                         | 57 +++++++++++++++++++
 scripts/variables.sh                          |  3 +
 5 files changed, 82 insertions(+)
 create mode 100755 scripts/handle_tmux_automatic_start/systemd_disable.sh
 create mode 100755 scripts/handle_tmux_automatic_start/systemd_enable.sh

diff --git a/continuum.tmux b/continuum.tmux
index 3f97736..e8d60e3 100755
--- a/continuum.tmux
+++ b/continuum.tmux
@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+set -x
+
 CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 source "$CURRENT_DIR/scripts/helpers.sh"
diff --git a/scripts/handle_tmux_automatic_start.sh b/scripts/handle_tmux_automatic_start.sh
index 35acae9..8f3c72d 100755
--- a/scripts/handle_tmux_automatic_start.sh
+++ b/scripts/handle_tmux_automatic_start.sh
@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+set -x
+
 CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 source "$CURRENT_DIR/helpers.sh"
@@ -14,14 +16,22 @@ is_osx() {
 	[ $(uname) == "Darwin" ]
 }
 
+is_systemd() {
+	[ $(ps -o comm= -p1) == 'systemd' ]
+}
+
 main() {
 	if is_tmux_automatic_start_enabled; then
 		if is_osx; then
 			"$CURRENT_DIR/handle_tmux_automatic_start/osx_enable.sh"
+		elif is_systemd; then
+			"$CURRENT_DIR/handle_tmux_automatic_start/systemd_enable.sh"
 		fi
 	else
 		if is_osx; then
 			"$CURRENT_DIR/handle_tmux_automatic_start/osx_disable.sh"
+		elif is_systemd; then
+			"$CURRENT_DIR/handle_tmux_automatic_start/systemd_disable.sh"
 		fi
 	fi
 }
diff --git a/scripts/handle_tmux_automatic_start/systemd_disable.sh b/scripts/handle_tmux_automatic_start/systemd_disable.sh
new file mode 100755
index 0000000..115e1c9
--- /dev/null
+++ b/scripts/handle_tmux_automatic_start/systemd_disable.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+source "$CURRENT_DIR/../variables.sh"
+
+main() {
+	systemctl --user disable ${systemd_service_name}
+}
+main
diff --git a/scripts/handle_tmux_automatic_start/systemd_enable.sh b/scripts/handle_tmux_automatic_start/systemd_enable.sh
new file mode 100755
index 0000000..4fcd816
--- /dev/null
+++ b/scripts/handle_tmux_automatic_start/systemd_enable.sh
@@ -0,0 +1,57 @@
+#!/usr/bin/env bash
+
+set -x
+
+CURRENT_DIR="$( dirname ${BASH_SOURCE[0]} )"
+
+source "$CURRENT_DIR/../helpers.sh"
+source "$CURRENT_DIR/../variables.sh"
+
+template() {
+	local tmux_start_script="$1"
+	shift
+	local options="$@"
+	local content=""
+
+	read -r -d '' content <<-EOF
+	[Unit]
+	Description=tmux default session (detached)
+	Documentation=man:tmux(1)
+
+	[Service]
+	Type=oneshot
+	RemainAfterExit=True
+	Environment=DISPLAY=:0
+	ExecStart=/usr/bin/tmux ${systemd_tmux_server_start_cmd}
+	ExecStartPost=/usr/bin/tmux run /home/peteches/.tmux/plugins/tmux-resurrect/scripts/restore.sh
+
+	ExecStop=/home/peteches/.tmux/plugins/tmux-resurrect/scripts/save.sh
+	ExecStop=/usr/bin/tmux kill-server
+	KillMode=none
+
+	[Install]
+	WantedBy=default.target
+	EOF
+
+	echo "$content"
+}
+
+systemd_tmux_is_enabled() {
+	systemctl --user is_enabled $(basename "${systemd_unit_file_path}") >/dev/null 2>&1
+}
+
+enable_tmux_unit_on_boot() {
+	if ! systemd_tmux_is_enabled; then
+		systemctl --user enable ${systemd_service_name}
+	fi
+}
+
+main() {
+	local options="$(get_tmux_option "$auto_start_config_option" "${auto_start_config_default}")"
+	local systemd_tmux_server_start_cmd="$(get_tmux_option "${systemd_tmux_server_start_cmd}" "${systemd_tmux_default_server_start_cmd}" )"
+	local tmux_start_script_path="${CURRENT_DIR}/linux_start_tmux.sh"
+	local systemd_unit_file=$(template "${tmux_start_script_path}" "${options}")
+	echo "$systemd_unit_file" > "${systemd_unit_file_path}"
+	enable_tmux_unit_on_boot
+}
+main
diff --git a/scripts/variables.sh b/scripts/variables.sh
index 52597fd..be743c9 100644
--- a/scripts/variables.sh
+++ b/scripts/variables.sh
@@ -32,3 +32,6 @@ status_script="#($CURRENT_DIR/scripts/continuum_status.sh)"
 status_on_style_wrap_option="@continuum-status-on-wrap-style"   # example value: "#[fg=green]#{value}#[fg=white]"
 status_off_style_wrap_option="@continuum-status-off-wrap-style" # example value: "#[fg=yellow,bold]#{value}#[fg=white,nobold]"
 status_wrap_string="\#{value}"
+
+systemd_service_name="tmux.service"
+systemd_unit_file_path="$HOME/.config/systemd/user/${systemd_service_name}"