openhasp-config-manager

A tool to manage all of your openHASP device configs in a centralized place.

Features

• manage as many devices as you like
• share configuration files between devices
• jsonl preprocessing, which allows for
  • // comments within jsonl files
  • line breaks wherever you like
  • jinja2 templating within object values
  • local and globally scoped variables
• output validation for
  • jsonl object
  • cmd files
• one click configuration upload to the device
  • automatic diffing to only update changed configuration files
  • git-style diff output for changed lines
• execute commands directly from the CLI (still needs a connection to the MQTT broker)

Disclaimer

TL;DR: This project is still experimental.

I do use openhasp-config-manager exclusively to configure all of my openHASP devices. I am in the process of adding tests to everything to make it more reliable and have also added lots of features along the way. However, there are definitely still a couple of things that do not yet work as intended. Error logs might need some love to be able to figure out what you did wrong. If you like the project, feel free to open an issue or PR to help me out.

How to use

Installation

Since openhasp-config-manager needs some dependencies (see here) it is recommended to install it inside a virtualenv:

mkdir -p ~/venvs/openhasp-config-manager
python3 -m venv ~/venvs/openhasp-config-manager
source ~/venvs/openhasp-config-manager/bin/activate
pip3 install openhasp-config-manager
openhasp-config-manager -h

Configuration

openhasp-config-manager is first and foremost a configuration management system. Simply follow the basic folder structure and config deployment will become trivial. Please read all of this, as it is very important to understand the basic structure on which everything relies.

Folder Structure

The following folders should reside inside a single parent folder, f.ex. named openhasp-configs. This folder can be located anywhere you like, but must be accessible to openhasp-config-manager when executing.

• common: The common subdirectory can be used for files that should be included on all device. This folder is optional.
• devices: The devices folder is required. It must contain one subfolder for each openHASP device you want to configure using openhasp-config-maager. It is recommended to name subfolders according to the physical devices associated with them.
  • touch_down_1 (example device folder)
    • A device folder contains *.jsonl, *.cmd and other files which should only be uploaded to that particular device.
    • You can create arbitrary nested folder structures for organizing the files. There is a limit to the file name length though, see FAQ
    • You must provide a config.json file, see config.json for more info.

A more advanced configuration layout could look something like this:

openhasp-configs
├── common
│   ├── content
│   │   └── card.jsonl
│   ├── dialog
│   │   ├── connected.jsonl
│   │   └── offline.jsonl
│   ├── navigation_bar.jsonl
│   └── page_header.jsonl
└── devices
    └── touch_down_1
        ├── 0_home
        │   ├── 0_header.jsonl
        │   ├── 1_content.jsonl
        │   └── page.cmd
        ├── 5_about
        │   ├── 0_header.jsonl
        │   ├── 1_content.jsonl
        │   └── page.cmd
        ├── boot.cmd
        ├── config.json
        ├── offline.cmd
        └── online.cmd

config.json

openhasp-config-manager makes use of the config.json on your plate. It can extract information from it to detect things like screen orientation, and also allows you to deploy changes within the config.json file. Since the official API does not support uploading the full file, only settings which can also be set through the web ui on the plate itself are currently supported.

To retrieve the initial version of the config.json file you can use the built-in file browser integrated into the webserver of your openHASP plate, see official docs.

The official config.json file doesn't provide enough info for openhasp-config-manager to enable all of its features though. To fix that simply add a section to the file after downloading it:

{
  "openhasp_config_manager": {
    "device": {
      "ip": "192.168.5.134",
      "screen": {
        "width": 320,
        "height": 480
      }
    }
  },
  "wifi": {
    "ssid": "Turris IoT",
    ...
  }

Config File Preprocessing

openhasp-config-manager runs all configuration files through various preprocessors, which allow us to use features the original file formats do not support by themselves, like f.ex. templating.

Templating

You can use Jinja2 templates inside all jsonl object values. To access the value of another object in a template, you can use the pXbY syntax established by openHASP, where X is the page of an object and Y is its id. openhasp-config-manager even tries to resolve templates that lead to other templates. Be careful not to create loops in this way though.

You can use the full functionality of Jinja2 like f.ex. math operations, function calls or type conversions.

{
  "page": 1,
  "id": 1,
  "x": 0,
  "y": 0,
  ...
}

  {
    "page": 1,
    "id": 2,
    "x": "{{ p1b1.x }}",
    "y": "{{ p1b1.y + 10 }}",
    ...
  }

Variables

Besides accessing other objects, you can also define custom variables yourself, which can then be referenced inside of templates. Variables are defined using *.yaml files. If you decided to use a subfolder structure to organize your configuration files you can use these folders to also set the scope of variables. More specific variable definitions (longer path) will override less specific ones.

Global

Global variables can be specified by creating *.yaml files inside the root config folder (f.ex. openhasp-configs).

Example:

openhasp-configs/global.vars.yaml

about:
  page_title: "About"

To access this variable, use a Jinja2 template:

openhasp-configs/common/about_page.jsonl

{
  "page": 9,
  "id": 1,
  ...
  "title": "{{ about.page_title }}",
  ...
}

Device specific

Device specific variables can be specified by creating *.yaml files inside any of the sub-folders of a device folder.

Note

Device specific variables will override global variables, given the same name.

Example:

openhasp-configs/device/my_device/device.vars.yaml

page_title: "My Device"

openhasp-configs/device/my_device/some_folder/some_page.jsonl

{
  "page": 1,
  "id": 1,
  ...
  "title": "{{ page_title }}",
  ...
}

openhasp-configs/device/my_device/some_other_folder/some_page.jsonl

{
  "page": 2,
  "id": 1,
  ...
  "title": "{{ page_title }}",
  ...
}

Deployment

To deploy your configurations to the already connected openHASP devices, simply use the command line tool openhasp-config-manager:

> openhasp-config-manager                                                         0 (0.604s) < 02:11:38
Usage: openhasp-config-manager [OPTIONS] COMMAND [ARGS]...

Options:
  --version   Show the version and exit.
  -h, --help  Show this message and exit.

Commands:
  cmd       Sends a command request to a device.
  deploy    Combines the generation and upload of a configuration.
  generate  Generates the output files for all devices in the given...
  upload    Uploads the previously generated configuration to their...

Run commands

While openhasp-config-manager is first and foremost a config management system, it also allows you to run commands on a device by issuing MQTT messages without the need to install a separate MQTT client first. Note that the MQTT server still needs to be running and also has to be reachable from your local machine for this to work.

For a list of possible commands to send to a device, take a look at the official documentation: https://openhasp.haswitchplate.com/latest/commands/

> openhasp-config-manager cmd -c ./openhasp-configs -d plate35 -C backlight -p "{\"state\":\"on\",\"brightness\":128}"

FAQ

How do I see device logs?

With the device connected via USB cable, open a terminal and run:

bash -c "screen -q -L -Logfile device.log /dev/ttyUSB0 115200 &> /dev/null; tail -F device.log; killall screen"

Output file name length must not exceed 30 characters

If you want to organize your files (both common and device-specific ones) you can simply create subfolders to achieve your desired structure. However, due to a technical limitation openHASP does not support subfolder on the actual device. To overcome this limitation openhasp-config-manager will automatically generate a file name for files in subfolders before uploading them to the device. .json or .cmd files within subfolders will be renamed by concatenating their full subpath using an underscore (_) as a separator. So f.ex. the file in the following structure:

openhasp-configs
└── devices
    └── touch_down_1
        └── 0_home
            └── 0_header.jsonl

would be uploaded to the touch_down_1 device with the name 0_home_0_header.jsonl.

Contributing

GitHub is for social coding: if you want to write code, I encourage contributions through pull requests from forks of this repository. Create GitHub tickets for bugs and new features and comment on the ones that you are interested in.

License

openhasp-config-manager is free software: you can redistribute it and/or modify
it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.