new links in readme

README.md

@@ -85,6 +85,9 @@ where:
 * https://lug.fh-swf.de/vim/vim-bash/StyleGuideShell.en.pdf
 * https://www.thegeekstuff.com/2010/06/bash-array-tutorial/
 * https://www.distributednetworks.com/linux-network-admin/module4/ephemeral-reserved-portNumbers.php
+* https://github.com/community-scripts/ProxmoxVE/tree/main/install
+* https://github.com/community-scripts/ProxmoxVE/tree/main/misc
+* https://faculty.cs.niu.edu/~hutchins/csci480/signals.htm
 
 ## License
 

helpers/basic.sh

@@ -5,6 +5,34 @@ source $( dirname $(readlink -e -- "${BASH_SOURCE}"))/io.sh || exit 255
 # Little handy helpers for scripting
 ########################################################
 
+is_bash() {
+    [[ "$(basename "$SHELL")" != "bash" ]]
+}
+
+is_sourced() {
+    [[ "${BASH_SOURCE[0]}" != "$0" ]]
+}
+
+is_root() {
+    [[ "$(id -u)" -ne 0 || $(ps -o comm= -p $PPID) == "sudo" ]]
+}
+
+get_os() {
+    case "$(uname -s)" in
+        Linux*) echo Linux ;;
+        Darwin*) echo Macos ;;
+        CYGWIN*) echo Cygwin ;;
+        MINGW*) echo MinGw ;;
+        MSYS_NT*) echo Git ;;
+        *) return 1 ;;
+    esac
+}
+
+get_os_id() {
+    [ -f /etc/os-release ] && source /etc/os-release
+    echo "$ID"
+}
+
 # convert relative path $1 to full one
 abspath() {
     echo $(realpath -q "${1/#\~/$HOME}")
@@ -93,3 +121,7 @@ is_int() {
 is_number() {
     [[ "$1" =~ ^[0-9]+([.,][0-9]+)?$ ]]
 }
+
+trim() {
+    echo "$1" | xargs
+}

helpers/docker.sh

@@ -46,3 +46,34 @@ docker.exec() {
     debug "Команда: $cmd"
     $cmd
 }
+
+# Выводит информацию о контейнере
+docker.inspect() {
+    cmd="docker inspect $*"
+    debug "Команда: $cmd"
+    $cmd 2>/dev/null
+}
+
+docker.ip() { # not finished
+    if [ "$1" ]; then
+        if [ "$1" = "-a" ]; then
+            docker ps -aq \
+            | xargs -n 1 docker inspect --format '{{.Name}}{{range .NetworkSettings.Networks}} {{.IPAddress}}{{end}}' \
+            | sed -e 's#^/##' \
+            | column -t
+        elif [ "$1" = "-c" ]; then
+            docker-compose ps -q \
+            | xargs -n 1 docker inspect --format '{{.Name}}{{range .NetworkSettings.Networks}} {{.IPAddress}}{{end}}' \
+            | sed -e 's#^/##' \
+            | column -t
+        else
+            docker inspect --format '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$1"
+            docker port "$1"
+        fi
+    else
+        docker ps -q \
+        | xargs -n 1 docker inspect --format '{{.Name}}{{range .NetworkSettings.Networks}} {{.IPAddress}}{{end}}' \
+        | sed -e 's#^/##' \
+        | column -t
+    fi
+}

helpers/help.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+#TODO source basic.sh
+#TODO source args-parser/args.sh
+
+########################################################
+# Help functions
+########################################################
+
+process_help_arg() {
+    command="${FUNCNAME[1]}"
+    need_help=$(arg help 1)
+    [[ "$need_help" -eq 0 ]] && need_help=$(argl help 1)
+    [[ "$need_help" -eq 1 ]] && help "$command"
+}
+
+help() {
+    is_function "help.$1" && help."$1" && exit
+    echo "Main help message"
+}
+
+help.example() {
+    echo "Example help message"
+}
+
+example() {
+    process_help_arg
+    echo "Example command"
+}

helpers/io.sh

@@ -76,9 +76,14 @@ ask() {
 }
 
 print() {
+    # if [ -n "$SPINNER_PID" ] && ps -p $SPINNER_PID > /dev/null; then kill $SPINNER_PID > /dev/null; fi
     echo -e "$*${FRESET}"
 }
 
+link() {
+    echo -e "\e]8;;$2\a$1\e]8;;\a"
+}
+
 debug() {
     if [ "$2" ]; then
         print "${FDIM}${FBOLD}${FRESET}${FDIM}$(now)${IDEBUG} ${FUNCNAME[1]:-?}():${BASH_LINENO:-?}\t$1 " >&2
@@ -141,20 +146,53 @@ die() {
     exit ${2:-255}
 }
 
-var='test var_dump'
-var_dump var
-debug 'test debug'
-verbose 'test verbose'
-info 'test info'
-note 'test note'
-success 'test success'
-warn 'test warn'
-error 'test error'
-fatal 'test fatal'
-die 'test die'
+# var='test var_dump'
+# var_dump var
+# debug 'test debug'
+# verbose 'test verbose'
+# info 'test info'
+# note 'test note'
+# success 'test success'
+# warn 'test warn'
+# error 'test error'
+# fatal 'test fatal'
+# die 'test die'
 
 # experiments ==============================================================================
 
+# spinner() {
+#     local frames=('⠋' '⠙' '⠹' '⠸' '⠼' '⠴' '⠦' '⠧' '⠇' '⠏')
+#     local spin_i=0
+#     local interval=0.1
+#     printf "\e[?25l"
+
+#     local color="${FGREEN}"
+
+#     while true; do
+#     printf "\r ${color}%s${CL}" "${frames[spin_i]}"
+#     spin_i=$(( (spin_i + 1) % ${#frames[@]} ))
+#     sleep "$interval"
+#     done
+# }
+
+# echo "lorem ipsum dolor sit amet"
+# spinner &
+# SPINNER_PID=$!
+
+
+
+
+
+
+
+
+
+
+
+
+# ===========
+
+
 # https://unix.stackexchange.com/a/269085
 # https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit
 # https://linuxcommand.org/lc3_adv_tput.php

helpers/misc.sh

@@ -6,10 +6,10 @@
 
 # https://askubuntu.com/a/30414
 is_full_screen() {
-    local WINDOW=$(echo $(xwininfo -id $(xdotool getactivewindow) -stats | \
-            egrep '(Width|Height):' | \
-            awk '{print $NF}') | \
-            sed -e 's/ /x/')
+    local WINDOW=$(xwininfo -id "$(xdotool getactivewindow)" -stats \
+                    | grep -E '(Width|Height):' \
+                    | awk '{print $NF}' \
+                    | sed -e 's/ /x/')
     local SCREEN=$(xdpyinfo | grep -m1 dimensions | awk '{print $2}')
     if [ "$WINDOW" = "$SCREEN" ]; then
         return 0
@@ -17,19 +17,6 @@ is_full_screen() {
     return 1
 }
 
-curltime() {
-    curl -w @- -o /dev/null -s "$@" <<'EOF'
-    time_namelookup: %{time_namelookup} sec\n
-       time_connect: %{time_connect} sec\n
-    time_appconnect: %{time_appconnect} sec\n
-   time_pretransfer: %{time_pretransfer} sec\n
-      time_redirect: %{time_redirect} sec\n
- time_starttransfer: %{time_starttransfer} sec\n
-                     ---------------\n
-         time_total: %{time_total} sec\n
-EOF
-}
-
 ytm() {
     youtube-dl \
         --extract-audio \
@@ -38,29 +25,5 @@ ytm() {
         --format bestaudio \
         --write-info-json \
         --output "$HOME/Downloads/ytm/%(playlist_title)s/%(channel)s - %(title)s.%(ext)s" \
-        $*
-}
-
-docker.ip() { # not finished
-    if [ "$1" ]; then
-        if [ "$1" = "-a" ]; then
-            docker ps -aq \
-            | xargs -n 1 docker inspect --format '{{.Name}}{{range .NetworkSettings.Networks}} {{.IPAddress}}{{end}}' \
-            | sed -e 's#^/##' \
-            | column -t
-        elif [ "$1" = "-c" ]; then
-            docker-compose ps -q \
-            | xargs -n 1 docker inspect --format '{{.Name}}{{range .NetworkSettings.Networks}} {{.IPAddress}}{{end}}' \
-            | sed -e 's#^/##' \
-            | column -t
-        else
-            docker inspect --format '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$1"
-            docker port "$1"
-        fi
-    else
-        docker ps -q \
-        | xargs -n 1 docker inspect --format '{{.Name}}{{range .NetworkSettings.Networks}} {{.IPAddress}}{{end}}' \
-        | sed -e 's#^/##' \
-        | column -t
-    fi
+        "$@"
 }

helpers/net.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+########################################################
+# Networking functions
+########################################################
+
+get_current_ip() {
+    local CURRENT_IP
+    [ -f /etc/os-release ] && source /etc/os-release
+    case "$ID" in
+        debian|ubuntu) CURRENT_IP=$(hostname -I | awk '{print $1}') ;;
+        alpine) CURRENT_IP=$(ip -4 addr show eth0 | awk '/inet / {print $2}' | cut -d/ -f1 | head -n 1) ;;
+        *) CURRENT_IP="Unknown" ;;
+    esac
+    echo "$CURRENT_IP"
+}
+
+get_external_ip() {
+    local ip="$(curl -s https://api.myip.com | jq .ip)"
+    echo "$ip" | tr -d '"'
+}
+
+is_valid_ipv4() {
+    local ip="$1"
+    local regex="^([0-9]{1,3}\.){3}[0-9]{1,3}$"
+
+    if [[ $ip =~ $regex ]]; then
+        IFS='.' read -r -a parts <<< "$ip"
+        for part in "${parts[@]}"; do
+            if ! [[ $part =~ ^[0-9]+$ ]] || ((part < 0 || part > 255)); then
+                return 1
+            fi
+        done
+        return 0
+    fi
+    return 1
+}
+
+curltime() {
+    curl -w @- -o /dev/null -s "$@" <<'EOF'
+    time_namelookup: %{time_namelookup} sec\n
+       time_connect: %{time_connect} sec\n
+    time_appconnect: %{time_appconnect} sec\n
+   time_pretransfer: %{time_pretransfer} sec\n
+      time_redirect: %{time_redirect} sec\n
+ time_starttransfer: %{time_starttransfer} sec\n
+                     ---------------\n
+         time_total: %{time_total} sec\n
+EOF
+}
+

helpers/traps.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+#TODO source basic.sh
+#TODO source args-parser/args.sh
+
+########################################################
+# Trap usage examples
+########################################################
+
+# for sig in SIGHUP SIGINT SIGQUIT SIGABRT SIGKILL SIGTERM SIGTSTP; do
+#     # shellcheck disable=SC2064
+#     trap "set +x && echo && echo && echo '*** Прервано сигналом $sig, остановка ***' && exit" $sig
+# done
+
+for sig in SIGHUP SIGINT SIGQUIT SIGABRT SIGKILL SIGTERM SIGTSTP; do
+    trap "myfunc" $sig
+done
+
+myfunc() {
+    echo "trapped!"
+    exit
+}