Added backup function

CentOS/7-Days-To-Die/7D2D-Manage.bash

@@ -129,14 +129,18 @@ start_server() {
   fi
 
   log "info" "Creating new session for $(important "${server_name}") as session $(important "${server_session_name}")"
-  tmux new-session -d -s "${server_session_name}" ~/.bin/7D2D-Serv-Handler "${server_directory}"
+  tmux new-session -d -s "${server_session_name}"
+  tmux send-keys \
+"until ${server_directory}/startserver.sh -configfile=${server_directory}/serverconfig.xml; do
+    echo 'Server died with code $?, restarting in 60 seconds...' >&2
+    sleep 60;
+done" C-m
   log "info" "Finished starting $(important "${server_name}") on port $(important "${server_port}") as tmux session $(important "${server_session_name}")"
 
 }
 
 kill_server() {
   local prefix
-  local tmux_response
   local server_id
 
   server_id=""
@@ -248,7 +252,7 @@ update() {
       printf "Usage: %s\n" \
 "update [OPTIONS]
   --server <server id: int> | -s <server id: int>
-    Starts the given server id
+    Updates the given server id
 
     Example:
       --server 3"
@@ -285,11 +289,7 @@ update() {
   server_directory="${BASE_DIR}/${server_name}"
   backup_dir="${HOME}/Server-Backups/${server_name}"
   backup_full_path="${backup_dir}/$(date +%s).tar.gz"
-  log "info" "Backing up server $(important "${server_name}") to $(important "${backup_full_path}"), this may take a while"
-  mkdir -p "${backup_dir}"
-  tar cf - "${server_directory}" -P | pv -s $(du -sb "${server_directory}" | awk '{print $1}') | \
-    gzip > "${backup_full_path}"
-  tar -czf "${server_directory}" "${backup_dir}"/
+  backup -s "${server_id}"
   log "info" "Updating server $(important "${server_name}") located at $(important "${server_directory}")..."
   steamcmd +force_install_dir "${server_directory}" +login anonymous +app_update 294420 validate +quit
 
@@ -297,6 +297,66 @@ update() {
 
 }
 
+backup() {
+
+  local server_id
+  server_id=""
+
+  while :; do
+    case ${1} in
+    -h | -\? | --help)
+      printf "Usage: %s\n" \
+"backup [OPTIONS]
+  --server <server id: int> | -s <server id: int>
+    Backups the given server id
+
+    Example:
+      --server 3"
+
+      exit
+      ;;
+    --) # End of all options.
+      break
+      ;;
+    --server | -s)
+      shift
+      server_id="${1}"
+      [[ -z "${server_id}" ]] && log "error" "No server id passed" && exit 1
+      ;;
+    -?*)
+      printf 'Unknown option: %s\n' "$1" >&2
+      ;;
+    *) # Default case: No more options, so break out of the loop.
+      break ;;
+    esac
+    shift
+  done
+
+  [[ -z "${server_id}" ]] && log "error" "No server id passed" && exit 1
+
+
+  # Kill the server to ensure a smooth backup
+  kill_server -s "${server_id}" >/dev/null 2>&1
+
+  local backup_dir
+  local backup_full_path
+  local server_directory
+  local server_name
+  server_name="Server-${server_id}"
+  server_directory="${BASE_DIR}/${server_name}"
+  backup_dir="${HOME}/Server-Backups/${server_name}"
+  backup_full_path="${backup_dir}/$(date +%s).tar.gz"
+
+  [[ ! -d "${server_directory}" ]] && log "info" "The server $(important "${server_name}") had no directory located at $(important "${server_directory}")" && exit 1
+
+  log "info" "Backing up server $(important "${server_name}") to $(important "${backup_full_path}"), this may take a while"
+  mkdir -p "${backup_dir}"
+  set -x
+  tar cf - "${server_directory}" -P | pv -s "$(du -sb "${server_directory}" | awk '{print $1}')" | \
+    gzip > "${backup_full_path}"
+  tar -czf "${server_directory}" "${backup_dir}"/
+}
+
 list_servers() {
   local picked_option
   picked_option=""
@@ -340,26 +400,29 @@ list_servers() {
       log "error" "An option must be passed for list, check list -h" &&
       return 1
 
-  if (( picked_option == 0 )); then
-    log "debug" "Listing running servers"
-    local tmux_sessions
-    tmux_sessions="$(tmux list-sessions)" >/dev/null 2>&1
-    if [[ ! "${?}" -eq "0" ]]; then
-      important "No servers currently running."
-    fi
-    while read -r; do
-      if [[ "${REPLY}" = *"-Server-"* ]]; then
-        local running_server
-        running_server="$(echo "${REPLY}" | cut -d ":" -f1)"
-        important "${running_server}"
+  case "${picked_option}" in
+    1)
+      log "debug" "Listing running servers"
+      local tmux_sessions
+      tmux_sessions="$(tmux list-sessions)" >/dev/null 2>&1
+      if [[ ! "${?}" -eq "0" ]]; then
+       important "No servers currently running."
       fi
-    done <<< "${tmux_sessions}"
-  elif (( picked_option == 1 )); then
-    log "debug" "Listing installed servers"
-    while read -r; do
-      important "${BASE_DIR}/${REPLY}"
-    done <<< "$(find "${BASE_DIR}" -name "startserver.sh" | cut -d "/" -f5)"
-  fi
+      while read -r; do
+        if [[ "${REPLY}" = *"-Server-"* ]]; then
+          local running_server
+          running_server="$(echo "${REPLY}" | cut -d ":" -f1)"
+          important "${running_server}"
+        fi
+      done <<< "${tmux_sessions}"
+      ;;
+    2)
+      log "debug" "Listing installed servers"
+      while read -r; do
+          important "${BASE_DIR}/${REPLY}"
+      done <<< "$(find "${BASE_DIR}" -name "startserver.sh" | cut -d "/" -f5)"
+      ;;
+  esac
 }
 
 usage() {
@@ -375,7 +438,7 @@ usage() {
   #   Yes
   #
   printf "Usage: %s\n" \
-    "$(basename ${0}) -h
+    "$(basename "${0}") -h
   start
     Exposes options to start 7 Days To Die Servers, pass -h to it for details
   kill
@@ -385,7 +448,9 @@ usage() {
   update
     Exposes options to update 7 Days To Die Servers, pass -h to it for details
   list
-    Exposes options to list 7 Days To Die Servers, pass -h to it for details"
+    Exposes options to list 7 Days To Die Servers, pass -h to it for details
+  backup
+    Exposes options to backup 7 Days To Die Servers, pass -h to it for details"
 }
 
 
@@ -437,6 +502,11 @@ main() {
       list_servers "$@"
       break
       ;;
+    backup | b)
+      shift
+      backup "$@"
+      break
+      ;;
     -?*)
       printf "Unknown option: %s\n" "$1" >&2
       usage