Bash useful scripts

common

#!/bin/bash

exit_help () { echo -e "$doc"; exit 1; }

send-notification() {
    DISPLAY=:0 DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus notify-send "Script:" "$1"
}  

result-message() {
    message="$@"
    if [[ -t 1 ]]; then
        echo $message
    else
        send-notification "$message"
    fi
}

send2clipboard() {
    message="$@"
    echo "$message" | xclip -sel clip
}

result-json() {
    formatted_json="$@"
    
    if [[ -t 1 ]]; then
        echo $formatted_json
    else
        file_name="/tmp/json_text.json"
        ps aux | grep "kate $file_name" | xargs kill -9
        echo $formatted_json | jq . > $file_name && kate $file_name
    fi
}

gsudo() {
    parameters="$@"
    if [[ -t 1 ]]; then
        sudo $parameters
    else
        pkexec $parameters
    fi
}

format_deltatime() {
  local secs=${1%.*-0}
  secs=${secs%.*}
  local formatted_runtime=`printf '%dh:%dm:%ds\n' $(($secs/3600)) $(($secs%3600/60)) $(($secs%60))`
  echo $formatted_runtime
}

acquire-lock() {
    if [ $# -eq 0 ]
    then
        echo "Must provide lock name"
        exit
    fi

    lock_name=$1
    lock_file_name=$HOME/.$lock_name.lck
    
    while test -f $lock_file_name; do
        echo "Waiting for lock $lock_name to be released"
        sleep 1
    done

    touch $lock_file_name
    echo "Lock $lock_name successfully acquired"
}

release-lock() {

    if [ $# -eq 0 ]
    then
        echo "Must provide lock name"
        exit
    fi
    lock_name=$1
    lock_file_name=$HOME/.$lock_name.lck

    if test -f $lock_file_name; then
        rm $lock_file_name
        echo "Lock $lock_name successfully released"
    else
        echo "Lock file $lock_file_name doesn't exists"
    fi
}

dolphin-copy-n-paste

#!/bin/bash
source common

file_name="$@"
if [ ! -f "$file_name" ]; then
    result-message "File $file_name not found!"
fi

file_url="file://$file_name"
echo $file_url | xclip -i -selection clipboard -t text/uri-list
result-message "Press Ctrl+V to copy $file_name"

drag-n-drop

#!/usr/bin/env bash
# Dependencies: xclip dragon-drag-and-drop 
source common

doc="$0 <filename>

Drags a given file to where the mouse is using dragon. Click to drop it (anywere).
If no filename is provided will attempt to get image from clipboard
(i.e. ideal to be triggered by a hotkey).
"

get_image_from_clipboard () {
    echo "Trying to get image from clipboard"
    image_file=/tmp/clipboard.png
    rm $image_file 
    result=1
    attempts=0
    # Long pulling for images on clipboard, flameshot can take a while to move the image to clipboard
    while [ $result -ne 0 ] && [ $attempts -lt 100 ]; do
        sleep .3
        xclip -selection clipboard -t image/png -o > "$image_file" && identify -format '%f' "$image_file"
        result=$?
        let attempts++
    done
    file=$image_file
    test "$result" == 1 && echo "Unable to retrieve image from clipboard"
    return $result
}

drag_file () {
    eval "$(xdotool getmouselocation --shell)"
    killall dragon-drag-and-drop 2>/dev/null
    dragon-drag-and-drop --and-exit "$file" &
    while true; do
        xid="$(xdotool search --onlyvisible --class  dragon-drag-and-drop | head -n 2)"
        test -z "$xid" || break
        sleep 0.05
    done
    xdotool mousemove --sync -w "$xid" 1 1 mousedown 1 mousemove $X $Y
    result-message "Click to drop $file..."
}

main () {
    test "$1" == "-h" && exit_help
    file="$1"
    test "$file" == "" && { get_image_from_clipboard EXIT || return 1; }
    drag_file
}

main "$@"

The drag script was adapted from @AXGKl `s solution at mwh/dragon#24