Tvheadend

See this

You basically need to fake tv_find_grabbers.

Oh, im such a newbie with Linux commands, my level is that I have to google to learn how to copy a file with SSH

I tried to create a script but I Think i need a more detailed guide of how to do this fix.

thank you!

See answer below.

I'm struggling with the exact same thing with HTS Tvheadend 4.2.4 running on a Synology NAS, trying to make it work with WebGrab++.

As first suggested I made a tv_find_grabbers script in /usr/bin:

#!/bin/sh

my_grabber_script="/usr/bin/tv_grab_wg++" 

echo "${my_grabber_script}|WebGrab+Plus" 

I made a dummy for that particular grabber /usr/bin/tv_grab_wg++ that creates a file if run, just for the sake of testing, although it has no XML output for tvheadend to read:

#!/bin/bash
echo "Hello World!" >> /var/packages/tvheadend/target/var/tested.txt

Both of these scripts have the proper +x permission:

-rwxr-xr-x 1 root   root      95 Dec 31 12:28 tv_find_grabbers
-rwxr-xr-x 1 root   root      91 Dec 31 12:22 tv_grab_wg++

The directory /var/packages/tvheadend/target/var/ is writable by the sc-tvheadend user that the service is relying on.

With these in place I restarted tvheadend. No grabber was listed on the page.
Used the option "Re-run Internal EPG Grabbers". No file was created, no grabber was listed on the page.

Also tried setting up the grabber config file as per the later suggestion with this entry, at the tail:

        "tv_grab_wg++": {
            "class": "epggrab_mod_int_xmltv",
            "name": "WebGrab+Plus",
            "type": "Internal",
            "enabled": true,
            "priority": 6
        }

Restarted tvheadend. No grabber was listed on the page.
Used the option "Re-run Internal EPG Grabbers". No file was created, no grabber was listed on the page.

At some point, though, the grabber config file was overwritten, the entry I placed was not there and there was this one in the beginning of the list:

        "/usr/bin/tv_grab_wg++": {
            "class": "epggrab_mod_int_xmltv",
            "dn_chnum": 0,
            "name": "XMLTV: WebGrab+Plus",
            "type": "Internal",
            "enabled": false,
            "priority": 3
        }

So I presume that the tv_find_grabbers list is being read by tvheadend and the config updated with it. Tried editing enabled to true and restart, but it still seems like the target script tv_grab_wg++ is never being called.

Yes, I remember it wasn't so easy! Try adding an entry in the config file under the "xmltv" folder. This also has an entry for the grabbers as well.

{
        "grabbers": [
                {
                        "path": "/storage/.kodi/addons/service.tvheadend42/bin/tv_grab_file",
                        "description": "tv_grag_file is a simple grabber that just read the ~/.xmltv/tv_grab_file.xmltv file",
                        "version": "0.1\n",
                        "mtime": 1318774706,
                        "capabilities": 1
                }
        ],
        "grab-interval": 12,
        "grab-enabled": 1,
        "current-grabber": "/storage/.kodi/addons/service.tvheadend42/bin/tv_grab_file" 
}

Good Luck!

Actually, turns out that editing the enabled flag to true seems to have done the trick!

So, more ore less, you can get to work this way:

1. Create the tv_find_grabbers as suggested previously by Mark https://tvheadend.org/boards/12/topics/30358?r=30359#message-30359
2. Restart tvheadend so it reads the list of grabbers and updates the grabber config file
3. Edit the file epggrab/config in the tvheadend user data directory, find the entry belonging to your grabber and set it to enabled
4. Restart tvheadend so it reads the new grabber config file

tvheadend should now be able to run your grabber. No grabber is ever listed on the web UI, not sure whether that's intended in this version or not.

I have tried all of these. my config shows that my grabber is enabled. I have my setting set to expert in the web interface. I have updated a script to print out my grabber location. I still do not see a dropdown in the EPG grabber tab. Is there a patch or a previous version that does not have this issue or something else for me to try. Everything up to this point has gone smooth but I cannot get past this part.