Update bash-folders-image-to-webp.sh

bash-folders-image-to-webp.sh

@@ -1 +1,123 @@
 
+#!/usr/bin/env bash
+
+# --
+# Description: Script that decompresses all the files that are left in the folder.
+# --nnnnnnn
+# Requirements: Install inotify-tools, gzip bzip2 xz-utils unzip p7zip-full and unrar
+# Example Debian: $sudo apt install inotify-tools gzip bzip2 xz-utils unzip p7zip-full unrar
+# --
+# Cron: @reboot bash-folders-descompress.sh >/dev/null 2>&1 &
+# --
+
+# START
+set -e
+
+# EXPORTS
+# Fix: notify-send command doesn't launch the notification through systemd service
+export DBUS_SESSION_BUS_ADDRESS="${DBUS_SESSION_BUS_ADDRESS:-unix:path=/run/user/${UID}/bus}"
+
+# VARIABLES
+PROGNAME=$(basename "$0")
+FOLDER_ORIGIN="$2"
+EXTENSIONS_TO_WATCH=("gzip" "bzip2" "xz" "zip" "7z" "rar")
+
+# FUNCTIONS
+
+usage() {
+    if [ "$*" != "" ] ; then
+        echo "Error: $*"
+    fi
+
+    cat << EOF
+Usage: $PROGNAME [OPTION]
+Watches new compress files and decompresses all the files.
+Options:
+--folder [path]  Folder path where will be monitored.
+--help           Display this usage message and exit
+EOF
+
+    exit 1
+}
+
+send-notification() {
+    if command -v notify-send >/dev/null 2>&1; then
+	# Send a native notification
+	notify-send "$1"
+    else
+	# If the above command is not available, print by console
+	echo "$1"
+    fi
+
+}
+
+start() {
+    # Output
+    cd "$FOLDER_ORIGIN"
+    # Monitors the selected folder
+    inotifywait -m -e create,moved_to --format '%f' "$FOLDER_ORIGIN" |
+	while read -r filename; do
+	    # Gets the file extension
+	    extension="${filename##*.}"
+	    filepath=$(readlink -f "$FOLDER_ORIGIN/$filename")
+	    # Checks if the extension is in the extension list
+	    for ext in "${EXTENSIONS_TO_WATCH[@]}"; do
+		if [[ "$ext" = "$extension" ]]; then
+		    # Notifies that the conversion is to be started
+		    send-notification "Descompressing '$filename', please wait."
+		    # Decompresses the file
+		    filetype=$(file -b "$filepath" | awk '{print $1}')
+		    case "$filetype" in
+			"gzip")
+			    gzip -d "$filepath"
+			    ;;
+			"bzip2")
+			    bzip2 -d "$filepath"
+			    ;;
+			"XZ")
+			    xz -d "$filepath"
+			    ;;
+			"Zip")
+			    unzip "$filepath"
+			    ;;
+			"7-zip")
+			    7z x "$filepath"
+			    ;;
+			"RAR")
+			    unrar x "$filepath"
+			    ;;
+			*)
+			    send-notification "Error: Unknown file type $filetype"
+			    ;;
+		    esac
+		    # Notifies that it has been terminated
+		    send-notification "Descompressing $filename finished."
+		fi
+	    done
+	done
+}
+
+# CONTROLE ARGUMENTS
+isArg=""
+
+while [ $# -gt 0 ] ; do
+    case "$1" in
+    --help)
+        usage
+        ;;
+    --folder)
+        isArg="1"
+	if [ $# -eq 2 ]; then
+	    start
+	else
+	    usage "You need to specify the path of the folder to watch."
+	fi
+        ;;
+    *)
+    esac
+    shift
+done
+
+if [ -z $isArg ] ; then
+    usage "Not enough arguments"
+fi