Note: These instructions are for Ubuntu 17.10. If you got it working on another platform please submit a pull request!
The first thing you'll need to do is install the various dependences.
$ sudo apt install ffmpeg mediainfo webhook incron
Then install the publicly available Ruby Gems:
$ sudo gem install rest-client digest syslog-logger
Next, check out and install the mediainfo gem
$ git clone https://github.com/icelander/mediainfo.git
$ cd mediainfo
$ gem build mediainfo.gemspec
$ sudo gem install mediainfo-0.7.4.gem
Now you're ready to check out the main project
$ cd ~/
$ git clone https://github.com/icelander/mattermost-video-preview.git
$ cd mattermost-video-preview
$ cp video_preview_config.example.yaml video_preview_config.yaml
Now edit the video_preview_config.yaml file to match your specific configuration. To test it, run the following command:
$ ./mattermost-video-preview.rb preview clouds.mov
You should see something like this in your Mattermost channel
Now that you've got that running properly, set up your webhook to respond to the commands. First, edit the webhook.example.conf file to match the paths in the video_preview_config.yaml Once that's done install it and activate the webhook:
$ sudo cp webhook.example.conf /etc/webhook.conf
$ sudo service webhook restart
To enable directory watching you'll need to set up incron. To do that you need to add your user to the incron.allow file:
$ sudo echo $USER >> /etc/incron.allow
Next, run incrontab -e to edit the incron table and add this:
/directory/to/watch IN_CREATE /path/to/mattermost-video-preview/mattermost-video-preview.rb preview $@/$#
Make sure you change the paths to reflect your configuration.
Now to test it, drop a video file in your watch directory and make sure it's working. You should get the same screen shot as before.