headlessvnc : ré-écriture complète

This commit is contained in:
Ahurac 2024-04-04 15:26:55 +02:00
parent cb3fc72d2b
commit 58ee6d737a

View file

@ -1,107 +1,59 @@
#!/bin/bash
# cd to the local VNC directory, exit if it fails
cd "${HOME}/.vnc" || exit 5
# Variable
verbs="start status stop restart help"
# echo bold text
echobf() {
printf '\033[1m%s\033[0m\n' "$*"
#!/usr/bin/env sh
perror() {
>&2 printf '\033[1;31mERROR:\033[0m \033[1m%s\033[0m\n' "$*"
}
# Print an error message
print_error() {
(
printf '\033[1;31m%s\033[0m ' "ERROR:"
echobf "$*"
) > /dev/stderr
error_usage() {
perror "invalid usage"
>&2 usage
exit 1
}
# Print an error and exit
error() {
print_error "$1"
shift
exit "$1"
}
# Check if the VNC server is running
is_running() {
vncserver -list | grep -q '^:1'
}
# Show a help message
public_help() {
local name
name="$(basename "$0")"
cat << EOF
${name} - Start a VNC server
Usage:
${name} ${verbs// /|}
EOF
}
# Show the same help with an error
error_help() {
print_error "Invalid usage"
>&2 public_help
return 1
}
# Start the VNC server
public_start() {
start() {
if ! is_running; then
set -e
vncserver \
-xstartup ./xstartup \
-localhost \
-alwaysshared \
-securitytypes none \
-nocursor \
-geometry 1600x900
set -- vncserver \
-localhost -alwaysshared \
-securitytypes none
[ -x ~/.vnc/xstartup ] && set -- "$@" -xstartup ~/.vnc/xstartup
"$@"
else
error "The VNC server is already running!" 4
perror "server already started"
exit 2
fi
}
# Check if the server is running
public_status() {
if is_running; then
echobf "The VNC server is running."
tail "./$(cat /proc/sys/kernel/hostname):1.log" | sed 's/^/\t/g'
else
echobf "The VNC server is not running."
fi
}
# Stop the VNC server
public_stop() {
stop() {
if is_running; then
vncserver -kill :1
else
error "The VNC server is not running!" 3
perror "server is not running"
exit 2
fi
}
# Restart the VNC server
public_restart() {
public_stop
public_start
status() {
if is_running; then
printf '\033[1;32m*\033[0m \033[1m%s\n' "the server is running"
else
printf '\033[1;31m*\033[0m \033[1m%s\n' "the server is not running"
fi
}
# Parse argument
if [ -n "$1" ]; then
arg="$1"
else
arg=status
fi
# Main switch
if echo "$verbs" | tr ' ' '\n' | grep -q "$arg"; then
"public_${arg}"
else
error_help
fi
case "$1" in
""|status) status ;;
start) start ;;
stop) stop ;;
restart)
stop
start
;;
*)
error_usage
;;
esac