Blog

  • composed

    composed.sh

    Simplest “GitOps” for Docker Compose. This script automates the process of updating and deploying services using Docker Compose. It pulls the latest changes from a Git repository, checks for updates in docker-compose.yml or docker-compose.yaml files, and restarts the affected services. Additionally, it sends notifications to a Discord channel if configured.

    Prerequisites

    • Docker and Docker Compose installed.
    • Git installed.
    • Optional: Discord webhook URL for notifications.

    Configuration

    Edit the script and configure the following variables:

    • DEPLOYMENT_ENV: Description of the deployment environment (used in Discord messages).
    • DEPLOYMENTS_DIR: Directory containing Docker Compose files.
    • DISCORD_WEBHOOK_URL: Discord Webhook URL (leave empty if you don’t want to use it).

    Directory Structure

    Ensure the DEPLOYMENTS_DIR is set up with the proper file structure. Each service should have its own directory containing the docker-compose.yml or docker-compose.yaml file.

    Example structure:

    /deployments
      ├── composed.sh
      └── services
          ├── service1
          │   └── docker-compose.yml
          ├── service2
          │   └── docker-compose.yaml
          └── service3
              └── docker-compose.yml
    

    Git Repository Setup

    The /deployments directory should be a Git repository. This repository contains the Docker Compose files for each service. Each service needs its own folder for the script to work properly (as shown in the example above). To work with the script properly, initialize a Git repository in this directory and commit your changes.

    Example workflow:

    1. Initialize the Git repository:
      mkdir /deployments
      cd /deployments
      git init
    2. Add your remote repository:
      git remote add origin <repository-url>
    3. Place the script in the /deployments directory (scripts/composed.sh):
      cp /path/to/composed.sh /deployments/
    4. Make the script executable:
      chmod +x /deployments/composed.sh
    5. Commit these changes and push them to your repository:
      git add .
      git commit -m "Initial commit with deployment script"
      git push -u origin main
    6. Set up crontab for execution (instructions below).
    7. When you set up your first service in your remote repository (e.g., on another computer or GitHub), commit and push your changes. You will see the results in the logs on your server and possibly on your Discord.
    8. Enjoy!

    Example Discord message - notification

    Setting Up Crontab

    To automate the execution of the script every 15 seconds and redirect the output to log files:

    1. Open the crontab editor:

      crontab -e
    2. Add the following lines to schedule the script every 15 seconds (ugly but works):

      * * * * * /deployments/composed.sh >> /var/log/composed.log 2>&1
      * * * * * sleep 15; /deployments/composed.sh >> /var/log/composed.log 2>&1
      * * * * * sleep 30; /deployments/composed.sh >> /var/log/composed.log 2>&1
      * * * * * sleep 45; /deployments/composed.sh >> /var/log/composed.log 2>&1

      This configuration ensures the script runs every 15 seconds.

    3. Save and exit the editor.

    Logging

    The script logs its activity with timestamps. Logs can be found in the specified log file (e.g., /var/log/composed.log).

    Disable Service Rule

    To disable the deployment of a specific service, add #disabled as the first line in its docker-compose.yml or docker-compose.yaml file. The script will check for this comment and skip the deployment of services marked as disabled, ensuring they remain stopped.

    Example:

    #disabled
    version: '3'
    services:
      web:
        image: nginx
        ports:
          - "80:80"

    When the script encounters this comment, it will log that the service is disabled, pull its images, stop the service, and not attempt to restart it. To enable the service again, simply remove the #disabled line from the docker-compose.yml or docker-compose.yaml file.

    Discord Notifications

    To enable Discord notifications, set the DISCORD_WEBHOOK_URL variable in the script with your Discord webhook URL. Notifications will include the deployment environment and the status of updated services.

    License

    This script is provided “as is” without any warranty. Use at your own risk.


    Feel free to modify and extend this script according to your needs. Contributions and improvements are welcome!

    Visit original content creator repository https://github.com/Pelski/composed
  • AntiBio-Advisor

    AntiBio-Advisor

    An intelligent interface project targeted towards educating people of different ages about when and why to use antibiotic medication.

    This will be done by educating users through the use of a simple to use chat-bot which will answer varied questions relating to antibiotics and its use.

    Antibio.Advisor.mp4

    Table of Contents

    Motivation

    Antibiotic overuse breeds treatment resistance. This is a global problem that is rapidly increasing and threatens our ability to treat common infectious diseases.

    According to the World Health Organisation: “Antimicrobials – including antibiotics, antivirals, antifungals and antiparasitics – are medicines used to prevent and treat infections in humans, animals and plants.” Excessive antibiotic use leads to heightened drug resistance, impacting treatment efficacy and complicating infection management, posing severe health risks.

    Antimicrobial Resistance (AMR) generates drug-resistant organisms globally, limiting treatment options, inflating healthcare costs, and elevating risks during medical procedures, necessitating urgent prevention and treatment strategies.

    Proposed Solution

    Antibio Advisor, a web app tailored for individuals 18 or older but available for all. Our web app offers an array of vital features: an intelligent chatbot for medical guidance, an interactive map to locate pharmacies and general practitioners, and a comprehensive term guide.

    Prioritising user awareness, our platform provides essential information in the form of a FAQs page, an informative Quiz and a prescription info page.

    The web app features mentioned above needed to be implemented in such a manner that they are easily accessible and usable. This was facilitated through a variety of different features such as:

    • Web Page Demo which guides the user on proper usage of applicable web pages.
    • Dynamic page size applicable for use with computers, mobile devices and tablets.
    • Colourful and simple interface to ensure easy navigation.
    • Elderly individuals were also considered through the use of a large font to ensure ease of use.

    Chatbot

    Chatbot

    As outlined above the chatbot has a myriad of different features ranging from:

    • Set of initial prompts aimed at providing the user with a possible conversation starter.
    • Clear button allowing the user to clear the current conversation and start afresh.
    • Speech to text button allowing to use voice to communicate with the chatbot directly.
    • Text to Speech button and volume slider allowing users to have messages read out loud.

    These features and the general chatbot layout was selected whilst keeping the possible users in mind to ensure a pleasant user experience. Additionally the UIs adaptability to different screen sizes maintains the ease of use of the chatbot and its features.

    FAQ

    The FAQ page is composed of a variety of relevant questions sorted according to relevant age groups these being General, Adult, Child, Elderly. This is done as certain knowledge is more applicable to certain age demographics. Additionally the FAQ can be sorted in accordance with the symptoms these being General, Cough, Rash, Skin Condition.

    FAQ

    Further adding to the intractability of the webpage each question only displays the answer when selected by the user. This can be seen in the image showcased in this slide.

    Prescription Info

    The main components of the Prescription Info page showcased here consist of three dropdowns relating to the antibiotic name, abbreviations and notations used by doctors when prescribing medicine.

    These dropdowns when appropriately selected provide the user with explanations regarding their antibiotics and the relevant dosages as denoted by a medical professionals prescription notation. The dropdowns in addition to a sample explanation can be seen below.

    Prescription Info

    Map

    The map was designed to showcase the users nearest pharmacies and general practitioners, this was carried out to provide the user with all the required information they might require to purchase, enquire or return unused antibiotics. In the map the blue markers represent general practitioners and the red markers represent pharmacies.

    Map

    Learn More

    The Learn More page similar to the FAQ page provides the user with a further degree of general information on the topic of AMR in contrast to the specific information presented in the FAQ page.

    Learn More

    This page contains an informative video alongside an interactive carousel composed of several infographics and informative paragraphs.

    Quiz

    The webapp also includes a quiz web page which compiles four questions from a possible set. This provides users a fun and engaging manner by which they can test their knowledge on AMR. Upon submitting the quiz users are provided with the correct answer where applicable in addition to a score showcased below. Furthermore the quiz can be regenerated multiple times and additional question can easily be added through the editing of a simple .json file.

    Quiz

    Ethical Considerations

    The website is not intended to replace medical advice, and the chatbot is not a substitute for a doctor. The chatbot is intended to provide general information and guidance on antibiotics and their use. Additionally, a disclaimer is provided on the chatbot page to ensure that users are aware of the chatbot’s limitations.

    Moreover, no user data is stored or kept, ensuring that no chatbot history or personal information is stored on the platform or any cloud storage system.

    Ethical Considerations

    Mobile Functionality

    The web app is designed to be used on a variety of different devices ranging from mobile phones to tablets and computers. This is achieved through the use of a dynamic page size which adapts to the screen size of the device being used. This ensures that the web app is usable on a variety of different devices and maintains the ease of use of the web app.

    Mobile Design

    Interactable Design

    The web app offers feedback to the user in the form of different bot expressions. This is achieved through the use of different images which are displayed depending on the current state of the demo bot.

    Interactable Design Interactable Design

    A Good Design takes a lot of Effort, Feedback and Time

    The design of the web app was a long and arduous process which required a lot of effort and feedback. The design process was broken down into 3 main stages:

    1. Paper Prototyping – This stage involved the creation of a paper prototype which was used to gather feedback from potential users. This feedback was then used to improve the design of the web app.
    2. Computer Prototyping – This stage involved the creation of a computer prototype which was used to gather feedback in the form of recommendations and improvements. This feedback was then used to improve the design of the web app. Additionally, in this stage improvements from the previous stage were implemented into the design.
    3. Final Design – This stage involved the creation of the final design which utilised the feedback gathered from the previous stages to create a final design which was then implemented into the web app.

    Design

    Libraries used

    The following libraries were used in the development of the web app:

    License

    Copyright © Antibio Advisor 2023
    Created by: Matthias Bartolo, Jerome Agius and Isaac Muscat
    This project was developed under supervision of Dr Vanessa Camilleri and Mr Gavin Schranz at the University of Malta.

    University of Malta Logo

    Visit original content creator repository https://github.com/mbar0075/AntiBio-Advisor
  • Graph-Diffusion-Models-A-Comprehensive-Survey-of-Methods-and-Applications

    Graph Diffusion Models: A Comprehensive Survey of Methods and Applications

    This is the summation of all the methods, datasets, and other survey mentioned in our survey ‘Graph Diffusion Models: A Comprehensive Survey of Methods and Applications’ 🔥. Any problems, please contact shouyuntao@stu.xjtu.edu.cn. Any other interesting papers or codes are welcome. If you find this repository useful to your research or work, it is really appreciated to star this repository ❤️.

    GitHub stars GitHub forks

    Contents

    Molecule generation

    De novo molecule design

    Methods Paper Code Methods Paper Code
    DiGress (ICLR-23) [paper] [code] MiDi (ICLR-23) [paper] [code]
    CDGS (NeurIPS-22) [paper] [code] GCDM (ICLR-23) [paper] [code]
    EDM (ICML-22) [paper] [code] Wu et al. (NeurIPS-22) [paper]
    MDM (AAAI-23) [paper] [code] DiffLinker [paper] [code]
    JODO [paper] [code] SILVR [paper]
    HierDiff (ICML-23) [paper] [code]
    BIMODAL [paper] [code] RationaleRL (ICML20) [paper] [code]
    GEOLDM (ICML-23) [paper] [code] MGM [paper]
    LFM AISTATS-20 [paper] [code] RetMol [paper] [code]
    MolGPT [paper] Bridge (NeurIPS-2022) [paper]
    Bresson et al. [paper] FLAG (ICLR-23) [paper] [code]
    LIMO [paper] [code] D3FG NeurIPS-24 [paper] [code]

    Conformation design

    Methods Paper Code Methods Paper Code
    ConfGF (ICML-21) [paper] [code] DGSM (NeurIPS-21) [paper]
    GeoDiff (ICLR-22) [paper] [code] ColfNet (ICML-22) [paper]
    Torsion Diffusion (NeurIPS-22) [paper] [code] DiffMD (AAAI-23) [paper]
    RINGER [paper]

    De novo ligand design

    Methods Paper Code Methods Paper Code
    DiffBP [paper] DiffSBDD [paper]
    TargetDiff (ICLR-23) [paper] PMDM [paper]
    D3FG [paper]

    Ligand docking

    Methods Paper Code
    DIFFDOCK (NeurIPS-22) [paper]
    EDM-Dock (JCIM) [paper] [code]
    DPL [paper] [code]
    NeuralPLexer [paper]
    E3BIND (ICLR-23) [paper]

    Protein design

    Methods Paper Code Methods Paper Code
    DiffAb (NeurIPS-22) [paper] Anand [paper]
    PROTSEED (ICLR-23) [paper] ProteinSGM [paper] [code]
    SMCDiff (ICLR-23) [paper] [code] GraDe-IF [paper]
    EigenFold [paper] [code]
    CGM (NeurIPS-19) [paper] [code] SeqDesign [paper] [code]
    Fold2Seq (ICML-21) [paper] [code] EvoDiff [paper]
    GVP (ICLR-21) [paper] [code] ESM (NeurIPS-21) [paper]

    Motion generation

    Motion synthesis

    Methods Paper Code Homepage Methods Paper Code Homepage
    MotionDiffuse [paper] [code] [homepage] Modiff [paper]
    Ren et al. (ICASSP-23) [paper] FLAME (AAAI-23) [paper]
    MoFusion (CVPR-23) [paper] [homepage] MDM (ICLR-23) [paper] [code] [homepage]
    MLD (CVPR-23) [paper] [code] [homepage] PriorMDM [paper] [code] [homepage]
    Alexanderson et al. (ACM Trans. Graph.) [paper] EDGE (CVPR-23) [paper] [code] [homepage]
    SceneDiffuser [paper] [code] [homepage] MoDi (CVPR-23) [paper] [code] [homepage]
    BiGraphDiff [paper] DiffuPose [paper]

    Motion prediction

    Methods Paper Code Homepage
    Ahn et al. (ICRA-23) [paper] [code] [homepage]
    HumanMAC [paper] [code] [homepage]
    TCD (ICRA-23) [paper] [code]
    DiffMotion [paper]

    Others

    Methods Paper Code Homepage Methods Paper Code Homepage
    EDP-GNN [paper] GSDM [paper]
    NVDiff [paper] DPM-GSP [paper]
    DiffSTG [paper] DIFUSCO [paper]
    GraphGDP [paper] [code] HouseDiffusion (CVPR-23) [paper] [code] [homepage]
    NAP [paper] [homepage] EDGE [paper]
    DruM [paper] DDM [Paper]
    DiffusionNAG [paper] TSDiff [paper]
    GraphArm [paper] HGDM [paper] [code]
    Lee et al. [paper] SaGess [paper]
    SLD [paepr] Diff-POI [paper]
    Brain Diffuser [paper] Lu et al. [paper]
    GBD [paper] [code] DiffGraph [paper] [code]
    ProGDM [paper] [code] R-ode [paper]

    Datasets

    Dataset Dimensionality Category No.of Graphs (G) No. of Nodes (N)
    Community-small 2D Social 100 11 < N < 20
    Ego-small 2D Social 200 3 < N < 18
    Grid 2D Grid 100 N <= 400
    QM9 3D Bioinformatics/Molecular 130,831 3 < N < 29
    ZINC250K 3D Bioinformatics/Molecular 249,456 6 < N < 38
    Enzymes 3D Bioinformatics/Protein 600 9 < N < 125
    SBM-27 2D Social 200 24 < N < 27
    Planar-60 2D Social 200 N = 60
    AIDS 2D Bioinformatics/Molecular 2000
    Synthie 2D Social 300 N = 100
    Proteins 3D Bioinformatics/Protein 1113 N = 39.1

    Molecule generation

    Methods Paper Source Methods Paper Source
    Zinc [paper] [source] GEOM-QM9 [paper] [source]
    GEOM-Drugs [paper] [source] CrossDocked2020 [paper] [source]
    BioLiP [paper] [source] PDBBind [paper] [source]
    SAbDab [paper] [source]

    Motion generation

    Methods Paper Source Methods Paper Source
    Human3.6M [paper] [source] HumanEva-I [paper] [source]
    HumanAct12 [paper] [source] HumanML3D [paper] [source]
    KIT [paper] [source] BABEL [paper] [source]
    UESTC [paper] [source] 3DPW [paper] [source]
    NTU RGB+D [paper] [source] AIST++ [paper] [source]
    TSG [paper] [source] ZeroEGGS [paper] [source]

    Other surveys

    Paper Url Source
    Diffusion-based Graph Generative Methods [paper] [source]
    Diffusion Models: A Comprehensive Survey of Methods and Applications [paper] [source]
    A Survey on Generative Diffusion Model [paper] [source]
    Generative Diffusion Models on Graphs: Methods and Applications [paper]
    A Survey on Graph Diffusion Models: Generative AI in Science for Molecule, Protein and Material [paper]
    Graph-based Molecular Representation Learning [paper]
    Generative Models as an Emerging Paradigm in the Chemical Sciences [paper]
    A Survey on Deep Graph Generation: Methods and Applications (LoG-22) [paper]
    A Survey on Temporal Graph Representation Learning and Generative Modeling [paper]
    Human motion modeling with deep learning: A survey [paper]
    MolGenSurvey: A Systematic Survey in Machine Learning Models for Molecule Design [paper]

    Acknowledgement ❤️

    Thanks to Diffusion-based-Graph-Generative-Methods.

    Star History

    Star History Chart

    Visit original content creator repository https://github.com/yuntaoshou/Graph-Diffusion-Models-A-Comprehensive-Survey-of-Methods-and-Applications
  • kmusic-recos

    kmusic-recos

    When I first began working on this project I wanted to see if there were any commonalities between my favorite artists and songs within k-pop. The scope slowly grew bigger and bigger over the months. Now, not only has data been scraped and a recommender system built, but a micro framework using flask has also been constructed for users to interact with the recommender engine. Future goals for this project include hosting everything in the cloud and scheduling regular scraping of Spotify to ensure data contained within the recommender engine is up to date.

    How to Use This Repo

    In order to run the “website” on your end, see the following steps:

    1. First clone the repo to a desired location: git clone https://github.com/ericwan1/kmusic-recos.git
    2. Open terminal or command prompt and navigate to the repository.
    3. Run export FLASK_APP=app or set FLASK_APP=app if you are using the latter.
    4. Then run flask run.
    5. Following the output from step 4, you will notice that the framework is most likely running on the default port (5000). Follow the url provided http://127.0.0.1:5000 and you can begin playing around with the site!

    Some Details

    • The model uses nearest neighbors. Scraping was done using the Spotipy API, and a basic analysis notebook is also included.
    • Flask was selected due to ease of set up, features, and easy integration with the code I already wrote.

    Data Dictionary

    • 273_kArtists.csv contains 273 artists and their Spotify IDs
      • Artist (Artist Name)
      • Spotify_Id (Artists’ Unique Spotify ID)
    • album_to_track_df.csv houses artist, album, and track information
      • Artist (Artist Name)
      • Artist_Id (Artists’ Unique Spotify ID)
      • Album_Name (Album Name)
      • Album_Id (Album’s Unique Spotify ID)
      • Track_Title (Title of the Track)
      • Track_Id (A Track’s Unique ID)
      • misc. song information – see bottom of dictionary
    • artist_appears_on_df.csv contains information on other albums the artist appears on
      • Artist (Artist Name)
      • Artist_Id (Artists’ Unique Spotify ID)
      • Appears_On_Name (“Albums” the Artist has Appeared On)
      • Appears_On_Id (The ID of the “Album” the Artist Appeared On)
    • compilation_track.csv includes artist information and compilation information, as well as track information for tracks contained within the artist compilation
      • Artist (Artist Name)
      • Artist_Id (Artists’ Unique Spotify ID)
      • Compilation_Name (Compilation Name)
      • Compilation_Id (The Compilation’s Unique Spotify ID)
      • Track_Title (Title of the Track)
      • Track_Id (A Track’s Unique ID)
      • misc. song information – see bottom of dictionary
    • single_album_track_data.csv contains artist information, any “single albums” and tracks contained within said albums and track information
      • Artist (Artist Name)
      • Artist_Id (Artists’ Unique Spotify ID)
      • Single_Album_Name (Name of the Single Album)
      • Single_Album_Id (Artists’ Unique Spotify ID)
      • Track_Title (Title of the Track)
      • Track_Id (A Track’s Unique ID)
      • misc. song information – see bottom of dictionary
    • misc. song information
      • danceability (Track Suitability to Dancing, 0.0 to 1.0)
      • energy (Measurement of Intensity and Activity, 0.0. to 1.0)
      • key (The Key of the Track – see pitch class table Guide Here)
      • loudness (Overall Loudness in Decibels, Typically -60 to 0 db)
      • mode (Major or Minor, 1 or 0)
      • speechiness (Presence of Words – the higher, the more wordy. 0.0 to 1.0)
      • acousticness (Confidence Measurement of a Track Being Acoustic. 0.0 to 1.0)
      • instrumentalness (Predicts if a Track Contains no Vocals, 0.0 to 1.0)
      • liveness (Predicts if a Live Audience in the Track, 0.0 to 1.0)
      • valence (Musical Positiveness, the Higher, the ‘Happier’. 0.0 to 1.0)
      • tempo (Track’s Estimated BPM)
      • duration_ms (Track Duration in Milliseconds)
      • time_signature (Time Signature, 3 to 7 for 3/4 to 7/4)

    Future To Do’s:

    • Host everything on a server and make the website interactable to the world
    • Automate the scraping notebook and orchestrate runs; potentially store and run everything in the cloud

    Visit original content creator repository
    https://github.com/ericwan1/kmusic-recos

  • squash

    squash

    squash is the web frontend to embed the bokeh apps and navigate through them. You can learn more about SQuaSH at SQR-009.

    Build Status

    Requirements

    The squash web frontend requires the squash-restful-api and squash-bokeh microservices, and the TLS certificats that are installed by the squash-deployment.

    Kubernetes deployment

    You can provision a Kubernetes cluster in GKE, clone this repo and deploy the squash microservice using:

    cd squash
    TAG=latest make service deployment
    

    The variables SQUASH_MONITOR_APP and SQUASH_BOKEH_APPS can be used to control the bokeh apps allowed in this deployment, for example:

    export SQUASH_MONITOR_APP=code_changes
    export SQUASH_BOKEH_APPS="code_changes AMx PAx"
    

    their default values correspond to the production deployment.

    Debugging

    Use the kubectl logs command to view the logs of the nginx and dash containers:

    kubectl logs deployment/squash-api nginx
    kubectl logs deployment/squash-api dash
    

    Use the kubectl exec to run an interactive shell inside a container. Use tab completion or kubectl get pods command to find the pod’s name:

    kubectl exec -it <squash pod> -c dash /bin/bash
    

    Rolling out updates

    Check the update history with:

    kubectl rollout history deployment squash
    

    Modify the squash image and then apply the new configuration for the kubernetes deployment:

    # we need to setup the env for django to collect static files
    virtualenv env -p python3
    source env/bin/activate
    pip install -r requirements.txt
    TAG=latest make build push update
    

    Check the deployment changes:

    kubectl describe deployments squash
    

    Scaling up the squash microservice

    Use the kubectl get replicasets command to view the current set of replicas, and then the kubectl scale command to scale up the squash deployment:

    kubectl scale deployments squash --replicas=3
    

    or change the kubernetes/deployment.yaml configuration file and apply the new configuration:

    kubectl apply -f kubernetes/deployment.yaml
    

    Check the deployment changes:

    kubectl describe deployments squash
    kubectl get pods
    kubectl get replicasets
    

    Development workflow

    You can install the dependencies for developing

    1. Install the software dependencies
    git clone  https://github.com/lsst-sqre/squash.git
    
    cd squash
    
    virtualenv env -p python3
    source env/bin/activate
    pip install -r requirements.txt
    
    1. Run squash
    export SQUASH_DASH_DEBUG=True
    export SQUASH_BOKEH_URL=<suqash-bokeh url> # e.g. the one from squash-bokeh deployment
    export SQUASH_API_URL=<squash-restful-api url> # e.g. the one from squash-restful-api deployment
    

    The variables SQUASH_MONITOR_APP and SQUASH_BOKEH_APPS can be used to control the bokeh apps allowed in this deployment, for example:

    export SQUASH_MONITOR_APP=code_changes
    export SQUASH_BOKEH_APPS="code_changes AMx PAx"
    
    python manage.py runserver
    

    The squash will run at http://localhost:8000.

    Visit original content creator repository https://github.com/lsst-sqre/squash
  • tails

    Logo resembling fox
    Preview

    An experimental functional systems programming language,
    written in Rust, and powered by LLVM as a backend.


    🎯 Goal: The intent is to create a programming language that balances simplicity and performance, focusing on functional programming paradigms and compile-time safety mechanisms. The language aims to facilitate explicit tracking of side effects and embrace a predictable coding environment. See the principles section for more information.

    Features

    Principles

    • Simplicity: The language should be easy to learn but powerful enough for complex tasks. A simple syntax helps lower the barrier to entry.
    • 📐 Consistency & orthogonality: Stick to one way of doing things. The language should use a few basic constructs that can be combined in many ways. This makes it easier to learn and use.
    • 🔮 Predictable, explicit, and deterministic semantics: The type system should be straightforward and avoid surprises. No guessing games—you should always know what the code is doing.
    • Opinionated: Make the language so there’s a ‘right way’ to do things. This ensures everyone writes code that looks and works similarly, making it easier to understand and collaborate.
    • 🙅🏻‍♂️ No meta-programming or reflection: Avoid features like meta-programming and reflection. They’re often misused and make the language harder to learn and less consistent.
    • Compile-time emphasis: Do most heavy lifting, like error checking and memory management, when the code is compiled. This makes the executables faster and more reliable.
    • ⛓️ Functional paradigm: Use functional programming to simplify code and reduce errors. It minimizes side effects and makes the code easier to reason about.

    Hello world example

    Syntax highlighting of a code snippet showing an application that prints 'hello world' to the console

    The foreign keyword lets you include functions and variables from other programming languages. You can put multiple such items in a foreign block to keep your code neat.

    The unsafe keyword is used for actions that have potential risks, like calling foreign functions or using pointers. This is much like Rust’s unsafe keyword and helps you be explicit about the risky parts of your code.

    nat is a type that stands for unsigned integers, which are 32-bit by default. You can also use variations like nat8, nat16, and nat64 for different bit sizes.

    The compiler doesn’t automatically coerce types, so you can use 0::nat to specify a literal’s type. This is handy when the type you want doesn’t match the compiler’s default 32-bit numeric type.

    Building and running

    Prerequisites

    Building

    cargo build

    Running tests

    cargo test
    Visit original content creator repository https://github.com/yurixander/tails
  • Whitepaper

    Warning - this repo is synced with the online version here: https://whitepaper.treecoin.online

    Tree Coin Whitepaper

    The Tree Coin® is an alternative solidarity model linked to an electronic symbol, the Tree Coin Logo, as academic Non-Financial, Non-Monetary, Non-Currency solidarity experiment.
    It’s a non-exchangeable electronic instrument, deemed to facilitate ethical approvisionnement of basic goods trough ethical barter.
    It’s a solidarity symbol, based on CREDIT, on sustainability, on mutual trust, respect for others and Mother Nature.

    • The Tree Coin is not a money
    • The Tree Coin is a symbol to facilitate barter
    • The Tree Coin is an ecological concept

    With the Tree Coin® you can generate your [ethical-artistic-note] by yourself and share it with your circles as alternative collaborative instrument.

    The Tree Coin® follow lunar phases and regenerates the minimum amount 1000 TREE every lunar cycle (28 days), as the plants regenerates itself in Mother Nature.
    You cannot never own less than zero, and it’s specifically designed for emerging realities such as eco-villages and rural areas.

    The Tree Coin® project allow anyone attaining the goal of protecting land and trees, as well as to establish eco-villages, relying on the concept of Sustainable Development and Climate Change reduction and better life conditions, in attainment of the United Nations Sustainable Development Goals (SDGs), promulgated by the United Nations General Assembly on 25 September 2015.


    Participation to the UN Global goals

    The Tree Coin® project works in attainment of the United Nations Sustainable Development Goals (SDGs) on three main following UN Global Goals:

    • Reforestation, and Life on Earth (SDG 15)
    • Reduction of CO₂ and Climate Change (SDG 13)
    • Post Pandemic Recovery and General well-being (SDG 3)

    Discover more on the official website

    Visit original content creator repository https://github.com/Tree-Coin/Whitepaper
  • OtakuDB

                        GNU GENERAL PUBLIC LICENSE
                           Version 3, 29 June 2007
    
     Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
     Everyone is permitted to copy and distribute verbatim copies
     of this license document, but changing it is not allowed.
    
                                Preamble
    
      The GNU General Public License is a free, copyleft license for
    software and other kinds of works.
    
      The licenses for most software and other practical works are designed
    to take away your freedom to share and change the works.  By contrast,
    the GNU General Public License is intended to guarantee your freedom to
    share and change all versions of a program--to make sure it remains free
    software for all its users.  We, the Free Software Foundation, use the
    GNU General Public License for most of our software; it applies also to
    any other work released this way by its authors.  You can apply it to
    your programs, too.
    
      When we speak of free software, we are referring to freedom, not
    price.  Our General Public Licenses are designed to make sure that you
    have the freedom to distribute copies of free software (and charge for
    them if you wish), that you receive source code or can get it if you
    want it, that you can change the software or use pieces of it in new
    free programs, and that you know you can do these things.
    
      To protect your rights, we need to prevent others from denying you
    these rights or asking you to surrender the rights.  Therefore, you have
    certain responsibilities if you distribute copies of the software, or if
    you modify it: responsibilities to respect the freedom of others.
    
      For example, if you distribute copies of such a program, whether
    gratis or for a fee, you must pass on to the recipients the same
    freedoms that you received.  You must make sure that they, too, receive
    or can get the source code.  And you must show them these terms so they
    know their rights.
    
      Developers that use the GNU GPL protect your rights with two steps:
    (1) assert copyright on the software, and (2) offer you this License
    giving you legal permission to copy, distribute and/or modify it.
    
      For the developers' and authors' protection, the GPL clearly explains
    that there is no warranty for this free software.  For both users' and
    authors' sake, the GPL requires that modified versions be marked as
    changed, so that their problems will not be attributed erroneously to
    authors of previous versions.
    
      Some devices are designed to deny users access to install or run
    modified versions of the software inside them, although the manufacturer
    can do so.  This is fundamentally incompatible with the aim of
    protecting users' freedom to change the software.  The systematic
    pattern of such abuse occurs in the area of products for individuals to
    use, which is precisely where it is most unacceptable.  Therefore, we
    have designed this version of the GPL to prohibit the practice for those
    products.  If such problems arise substantially in other domains, we
    stand ready to extend this provision to those domains in future versions
    of the GPL, as needed to protect the freedom of users.
    
      Finally, every program is threatened constantly by software patents.
    States should not allow patents to restrict development and use of
    software on general-purpose computers, but in those that do, we wish to
    avoid the special danger that patents applied to a free program could
    make it effectively proprietary.  To prevent this, the GPL assures that
    patents cannot be used to render the program non-free.
    
      The precise terms and conditions for copying, distribution and
    modification follow.
    
                           TERMS AND CONDITIONS
    
      0. Definitions.
    
      "This License" refers to version 3 of the GNU General Public License.
    
      "Copyright" also means copyright-like laws that apply to other kinds of
    works, such as semiconductor masks.
    
      "The Program" refers to any copyrightable work licensed under this
    License.  Each licensee is addressed as "you".  "Licensees" and
    "recipients" may be individuals or organizations.
    
      To "modify" a work means to copy from or adapt all or part of the work
    in a fashion requiring copyright permission, other than the making of an
    exact copy.  The resulting work is called a "modified version" of the
    earlier work or a work "based on" the earlier work.
    
      A "covered work" means either the unmodified Program or a work based
    on the Program.
    
      To "propagate" a work means to do anything with it that, without
    permission, would make you directly or secondarily liable for
    infringement under applicable copyright law, except executing it on a
    computer or modifying a private copy.  Propagation includes copying,
    distribution (with or without modification), making available to the
    public, and in some countries other activities as well.
    
      To "convey" a work means any kind of propagation that enables other
    parties to make or receive copies.  Mere interaction with a user through
    a computer network, with no transfer of a copy, is not conveying.
    
      An interactive user interface displays "Appropriate Legal Notices"
    to the extent that it includes a convenient and prominently visible
    feature that (1) displays an appropriate copyright notice, and (2)
    tells the user that there is no warranty for the work (except to the
    extent that warranties are provided), that licensees may convey the
    work under this License, and how to view a copy of this License.  If
    the interface presents a list of user commands or options, such as a
    menu, a prominent item in the list meets this criterion.
    
      1. Source Code.
    
      The "source code" for a work means the preferred form of the work
    for making modifications to it.  "Object code" means any non-source
    form of a work.
    
      A "Standard Interface" means an interface that either is an official
    standard defined by a recognized standards body, or, in the case of
    interfaces specified for a particular programming language, one that
    is widely used among developers working in that language.
    
      The "System Libraries" of an executable work include anything, other
    than the work as a whole, that (a) is included in the normal form of
    packaging a Major Component, but which is not part of that Major
    Component, and (b) serves only to enable use of the work with that
    Major Component, or to implement a Standard Interface for which an
    implementation is available to the public in source code form.  A
    "Major Component", in this context, means a major essential component
    (kernel, window system, and so on) of the specific operating system
    (if any) on which the executable work runs, or a compiler used to
    produce the work, or an object code interpreter used to run it.
    
      The "Corresponding Source" for a work in object code form means all
    the source code needed to generate, install, and (for an executable
    work) run the object code and to modify the work, including scripts to
    control those activities.  However, it does not include the work's
    System Libraries, or general-purpose tools or generally available free
    programs which are used unmodified in performing those activities but
    which are not part of the work.  For example, Corresponding Source
    includes interface definition files associated with source files for
    the work, and the source code for shared libraries and dynamically
    linked subprograms that the work is specifically designed to require,
    such as by intimate data communication or control flow between those
    subprograms and other parts of the work.
    
      The Corresponding Source need not include anything that users
    can regenerate automatically from other parts of the Corresponding
    Source.
    
      The Corresponding Source for a work in source code form is that
    same work.
    
      2. Basic Permissions.
    
      All rights granted under this License are granted for the term of
    copyright on the Program, and are irrevocable provided the stated
    conditions are met.  This License explicitly affirms your unlimited
    permission to run the unmodified Program.  The output from running a
    covered work is covered by this License only if the output, given its
    content, constitutes a covered work.  This License acknowledges your
    rights of fair use or other equivalent, as provided by copyright law.
    
      You may make, run and propagate covered works that you do not
    convey, without conditions so long as your license otherwise remains
    in force.  You may convey covered works to others for the sole purpose
    of having them make modifications exclusively for you, or provide you
    with facilities for running those works, provided that you comply with
    the terms of this License in conveying all material for which you do
    not control copyright.  Those thus making or running the covered works
    for you must do so exclusively on your behalf, under your direction
    and control, on terms that prohibit them from making any copies of
    your copyrighted material outside their relationship with you.
    
      Conveying under any other circumstances is permitted solely under
    the conditions stated below.  Sublicensing is not allowed; section 10
    makes it unnecessary.
    
      3. Protecting Users' Legal Rights From Anti-Circumvention Law.
    
      No covered work shall be deemed part of an effective technological
    measure under any applicable law fulfilling obligations under article
    11 of the WIPO copyright treaty adopted on 20 December 1996, or
    similar laws prohibiting or restricting circumvention of such
    measures.
    
      When you convey a covered work, you waive any legal power to forbid
    circumvention of technological measures to the extent such circumvention
    is effected by exercising rights under this License with respect to
    the covered work, and you disclaim any intention to limit operation or
    modification of the work as a means of enforcing, against the work's
    users, your or third parties' legal rights to forbid circumvention of
    technological measures.
    
      4. Conveying Verbatim Copies.
    
      You may convey verbatim copies of the Program's source code as you
    receive it, in any medium, provided that you conspicuously and
    appropriately publish on each copy an appropriate copyright notice;
    keep intact all notices stating that this License and any
    non-permissive terms added in accord with section 7 apply to the code;
    keep intact all notices of the absence of any warranty; and give all
    recipients a copy of this License along with the Program.
    
      You may charge any price or no price for each copy that you convey,
    and you may offer support or warranty protection for a fee.
    
      5. Conveying Modified Source Versions.
    
      You may convey a work based on the Program, or the modifications to
    produce it from the Program, in the form of source code under the
    terms of section 4, provided that you also meet all of these conditions:
    
        a) The work must carry prominent notices stating that you modified
        it, and giving a relevant date.
    
        b) The work must carry prominent notices stating that it is
        released under this License and any conditions added under section
        7.  This requirement modifies the requirement in section 4 to
        "keep intact all notices".
    
        c) You must license the entire work, as a whole, under this
        License to anyone who comes into possession of a copy.  This
        License will therefore apply, along with any applicable section 7
        additional terms, to the whole of the work, and all its parts,
        regardless of how they are packaged.  This License gives no
        permission to license the work in any other way, but it does not
        invalidate such permission if you have separately received it.
    
        d) If the work has interactive user interfaces, each must display
        Appropriate Legal Notices; however, if the Program has interactive
        interfaces that do not display Appropriate Legal Notices, your
        work need not make them do so.
    
      A compilation of a covered work with other separate and independent
    works, which are not by their nature extensions of the covered work,
    and which are not combined with it such as to form a larger program,
    in or on a volume of a storage or distribution medium, is called an
    "aggregate" if the compilation and its resulting copyright are not
    used to limit the access or legal rights of the compilation's users
    beyond what the individual works permit.  Inclusion of a covered work
    in an aggregate does not cause this License to apply to the other
    parts of the aggregate.
    
      6. Conveying Non-Source Forms.
    
      You may convey a covered work in object code form under the terms
    of sections 4 and 5, provided that you also convey the
    machine-readable Corresponding Source under the terms of this License,
    in one of these ways:
    
        a) Convey the object code in, or embodied in, a physical product
        (including a physical distribution medium), accompanied by the
        Corresponding Source fixed on a durable physical medium
        customarily used for software interchange.
    
        b) Convey the object code in, or embodied in, a physical product
        (including a physical distribution medium), accompanied by a
        written offer, valid for at least three years and valid for as
        long as you offer spare parts or customer support for that product
        model, to give anyone who possesses the object code either (1) a
        copy of the Corresponding Source for all the software in the
        product that is covered by this License, on a durable physical
        medium customarily used for software interchange, for a price no
        more than your reasonable cost of physically performing this
        conveying of source, or (2) access to copy the
        Corresponding Source from a network server at no charge.
    
        c) Convey individual copies of the object code with a copy of the
        written offer to provide the Corresponding Source.  This
        alternative is allowed only occasionally and noncommercially, and
        only if you received the object code with such an offer, in accord
        with subsection 6b.
    
        d) Convey the object code by offering access from a designated
        place (gratis or for a charge), and offer equivalent access to the
        Corresponding Source in the same way through the same place at no
        further charge.  You need not require recipients to copy the
        Corresponding Source along with the object code.  If the place to
        copy the object code is a network server, the Corresponding Source
        may be on a different server (operated by you or a third party)
        that supports equivalent copying facilities, provided you maintain
        clear directions next to the object code saying where to find the
        Corresponding Source.  Regardless of what server hosts the
        Corresponding Source, you remain obligated to ensure that it is
        available for as long as needed to satisfy these requirements.
    
        e) Convey the object code using peer-to-peer transmission, provided
        you inform other peers where the object code and Corresponding
        Source of the work are being offered to the general public at no
        charge under subsection 6d.
    
      A separable portion of the object code, whose source code is excluded
    from the Corresponding Source as a System Library, need not be
    included in conveying the object code work.
    
      A "User Product" is either (1) a "consumer product", which means any
    tangible personal property which is normally used for personal, family,
    or household purposes, or (2) anything designed or sold for incorporation
    into a dwelling.  In determining whether a product is a consumer product,
    doubtful cases shall be resolved in favor of coverage.  For a particular
    product received by a particular user, "normally used" refers to a
    typical or common use of that class of product, regardless of the status
    of the particular user or of the way in which the particular user
    actually uses, or expects or is expected to use, the product.  A product
    is a consumer product regardless of whether the product has substantial
    commercial, industrial or non-consumer uses, unless such uses represent
    the only significant mode of use of the product.
    
      "Installation Information" for a User Product means any methods,
    procedures, authorization keys, or other information required to install
    and execute modified versions of a covered work in that User Product from
    a modified version of its Corresponding Source.  The information must
    suffice to ensure that the continued functioning of the modified object
    code is in no case prevented or interfered with solely because
    modification has been made.
    
      If you convey an object code work under this section in, or with, or
    specifically for use in, a User Product, and the conveying occurs as
    part of a transaction in which the right of possession and use of the
    User Product is transferred to the recipient in perpetuity or for a
    fixed term (regardless of how the transaction is characterized), the
    Corresponding Source conveyed under this section must be accompanied
    by the Installation Information.  But this requirement does not apply
    if neither you nor any third party retains the ability to install
    modified object code on the User Product (for example, the work has
    been installed in ROM).
    
      The requirement to provide Installation Information does not include a
    requirement to continue to provide support service, warranty, or updates
    for a work that has been modified or installed by the recipient, or for
    the User Product in which it has been modified or installed.  Access to a
    network may be denied when the modification itself materially and
    adversely affects the operation of the network or violates the rules and
    protocols for communication across the network.
    
      Corresponding Source conveyed, and Installation Information provided,
    in accord with this section must be in a format that is publicly
    documented (and with an implementation available to the public in
    source code form), and must require no special password or key for
    unpacking, reading or copying.
    
      7. Additional Terms.
    
      "Additional permissions" are terms that supplement the terms of this
    License by making exceptions from one or more of its conditions.
    Additional permissions that are applicable to the entire Program shall
    be treated as though they were included in this License, to the extent
    that they are valid under applicable law.  If additional permissions
    apply only to part of the Program, that part may be used separately
    under those permissions, but the entire Program remains governed by
    this License without regard to the additional permissions.
    
      When you convey a copy of a covered work, you may at your option
    remove any additional permissions from that copy, or from any part of
    it.  (Additional permissions may be written to require their own
    removal in certain cases when you modify the work.)  You may place
    additional permissions on material, added by you to a covered work,
    for which you have or can give appropriate copyright permission.
    
      Notwithstanding any other provision of this License, for material you
    add to a covered work, you may (if authorized by the copyright holders of
    that material) supplement the terms of this License with terms:
    
        a) Disclaiming warranty or limiting liability differently from the
        terms of sections 15 and 16 of this License; or
    
        b) Requiring preservation of specified reasonable legal notices or
        author attributions in that material or in the Appropriate Legal
        Notices displayed by works containing it; or
    
        c) Prohibiting misrepresentation of the origin of that material, or
        requiring that modified versions of such material be marked in
        reasonable ways as different from the original version; or
    
        d) Limiting the use for publicity purposes of names of licensors or
        authors of the material; or
    
        e) Declining to grant rights under trademark law for use of some
        trade names, trademarks, or service marks; or
    
        f) Requiring indemnification of licensors and authors of that
        material by anyone who conveys the material (or modified versions of
        it) with contractual assumptions of liability to the recipient, for
        any liability that these contractual assumptions directly impose on
        those licensors and authors.
    
      All other non-permissive additional terms are considered "further
    restrictions" within the meaning of section 10.  If the Program as you
    received it, or any part of it, contains a notice stating that it is
    governed by this License along with a term that is a further
    restriction, you may remove that term.  If a license document contains
    a further restriction but permits relicensing or conveying under this
    License, you may add to a covered work material governed by the terms
    of that license document, provided that the further restriction does
    not survive such relicensing or conveying.
    
      If you add terms to a covered work in accord with this section, you
    must place, in the relevant source files, a statement of the
    additional terms that apply to those files, or a notice indicating
    where to find the applicable terms.
    
      Additional terms, permissive or non-permissive, may be stated in the
    form of a separately written license, or stated as exceptions;
    the above requirements apply either way.
    
      8. Termination.
    
      You may not propagate or modify a covered work except as expressly
    provided under this License.  Any attempt otherwise to propagate or
    modify it is void, and will automatically terminate your rights under
    this License (including any patent licenses granted under the third
    paragraph of section 11).
    
      However, if you cease all violation of this License, then your
    license from a particular copyright holder is reinstated (a)
    provisionally, unless and until the copyright holder explicitly and
    finally terminates your license, and (b) permanently, if the copyright
    holder fails to notify you of the violation by some reasonable means
    prior to 60 days after the cessation.
    
      Moreover, your license from a particular copyright holder is
    reinstated permanently if the copyright holder notifies you of the
    violation by some reasonable means, this is the first time you have
    received notice of violation of this License (for any work) from that
    copyright holder, and you cure the violation prior to 30 days after
    your receipt of the notice.
    
      Termination of your rights under this section does not terminate the
    licenses of parties who have received copies or rights from you under
    this License.  If your rights have been terminated and not permanently
    reinstated, you do not qualify to receive new licenses for the same
    material under section 10.
    
      9. Acceptance Not Required for Having Copies.
    
      You are not required to accept this License in order to receive or
    run a copy of the Program.  Ancillary propagation of a covered work
    occurring solely as a consequence of using peer-to-peer transmission
    to receive a copy likewise does not require acceptance.  However,
    nothing other than this License grants you permission to propagate or
    modify any covered work.  These actions infringe copyright if you do
    not accept this License.  Therefore, by modifying or propagating a
    covered work, you indicate your acceptance of this License to do so.
    
      10. Automatic Licensing of Downstream Recipients.
    
      Each time you convey a covered work, the recipient automatically
    receives a license from the original licensors, to run, modify and
    propagate that work, subject to this License.  You are not responsible
    for enforcing compliance by third parties with this License.
    
      An "entity transaction" is a transaction transferring control of an
    organization, or substantially all assets of one, or subdividing an
    organization, or merging organizations.  If propagation of a covered
    work results from an entity transaction, each party to that
    transaction who receives a copy of the work also receives whatever
    licenses to the work the party's predecessor in interest had or could
    give under the previous paragraph, plus a right to possession of the
    Corresponding Source of the work from the predecessor in interest, if
    the predecessor has it or can get it with reasonable efforts.
    
      You may not impose any further restrictions on the exercise of the
    rights granted or affirmed under this License.  For example, you may
    not impose a license fee, royalty, or other charge for exercise of
    rights granted under this License, and you may not initiate litigation
    (including a cross-claim or counterclaim in a lawsuit) alleging that
    any patent claim is infringed by making, using, selling, offering for
    sale, or importing the Program or any portion of it.
    
      11. Patents.
    
      A "contributor" is a copyright holder who authorizes use under this
    License of the Program or a work on which the Program is based.  The
    work thus licensed is called the contributor's "contributor version".
    
      A contributor's "essential patent claims" are all patent claims
    owned or controlled by the contributor, whether already acquired or
    hereafter acquired, that would be infringed by some manner, permitted
    by this License, of making, using, or selling its contributor version,
    but do not include claims that would be infringed only as a
    consequence of further modification of the contributor version.  For
    purposes of this definition, "control" includes the right to grant
    patent sublicenses in a manner consistent with the requirements of
    this License.
    
      Each contributor grants you a non-exclusive, worldwide, royalty-free
    patent license under the contributor's essential patent claims, to
    make, use, sell, offer for sale, import and otherwise run, modify and
    propagate the contents of its contributor version.
    
      In the following three paragraphs, a "patent license" is any express
    agreement or commitment, however denominated, not to enforce a patent
    (such as an express permission to practice a patent or covenant not to
    sue for patent infringement).  To "grant" such a patent license to a
    party means to make such an agreement or commitment not to enforce a
    patent against the party.
    
      If you convey a covered work, knowingly relying on a patent license,
    and the Corresponding Source of the work is not available for anyone
    to copy, free of charge and under the terms of this License, through a
    publicly available network server or other readily accessible means,
    then you must either (1) cause the Corresponding Source to be so
    available, or (2) arrange to deprive yourself of the benefit of the
    patent license for this particular work, or (3) arrange, in a manner
    consistent with the requirements of this License, to extend the patent
    license to downstream recipients.  "Knowingly relying" means you have
    actual knowledge that, but for the patent license, your conveying the
    covered work in a country, or your recipient's use of the covered work
    in a country, would infringe one or more identifiable patents in that
    country that you have reason to believe are valid.
    
      If, pursuant to or in connection with a single transaction or
    arrangement, you convey, or propagate by procuring conveyance of, a
    covered work, and grant a patent license to some of the parties
    receiving the covered work authorizing them to use, propagate, modify
    or convey a specific copy of the covered work, then the patent license
    you grant is automatically extended to all recipients of the covered
    work and works based on it.
    
      A patent license is "discriminatory" if it does not include within
    the scope of its coverage, prohibits the exercise of, or is
    conditioned on the non-exercise of one or more of the rights that are
    specifically granted under this License.  You may not convey a covered
    work if you are a party to an arrangement with a third party that is
    in the business of distributing software, under which you make payment
    to the third party based on the extent of your activity of conveying
    the work, and under which the third party grants, to any of the
    parties who would receive the covered work from you, a discriminatory
    patent license (a) in connection with copies of the covered work
    conveyed by you (or copies made from those copies), or (b) primarily
    for and in connection with specific products or compilations that
    contain the covered work, unless you entered into that arrangement,
    or that patent license was granted, prior to 28 March 2007.
    
      Nothing in this License shall be construed as excluding or limiting
    any implied license or other defenses to infringement that may
    otherwise be available to you under applicable patent law.
    
      12. No Surrender of Others' Freedom.
    
      If conditions are imposed on you (whether by court order, agreement or
    otherwise) that contradict the conditions of this License, they do not
    excuse you from the conditions of this License.  If you cannot convey a
    covered work so as to satisfy simultaneously your obligations under this
    License and any other pertinent obligations, then as a consequence you may
    not convey it at all.  For example, if you agree to terms that obligate you
    to collect a royalty for further conveying from those to whom you convey
    the Program, the only way you could satisfy both those terms and this
    License would be to refrain entirely from conveying the Program.
    
      13. Use with the GNU Affero General Public License.
    
      Notwithstanding any other provision of this License, you have
    permission to link or combine any covered work with a work licensed
    under version 3 of the GNU Affero General Public License into a single
    combined work, and to convey the resulting work.  The terms of this
    License will continue to apply to the part which is the covered work,
    but the special requirements of the GNU Affero General Public License,
    section 13, concerning interaction through a network will apply to the
    combination as such.
    
      14. Revised Versions of this License.
    
      The Free Software Foundation may publish revised and/or new versions of
    the GNU General Public License from time to time.  Such new versions will
    be similar in spirit to the present version, but may differ in detail to
    address new problems or concerns.
    
      Each version is given a distinguishing version number.  If the
    Program specifies that a certain numbered version of the GNU General
    Public License "or any later version" applies to it, you have the
    option of following the terms and conditions either of that numbered
    version or of any later version published by the Free Software
    Foundation.  If the Program does not specify a version number of the
    GNU General Public License, you may choose any version ever published
    by the Free Software Foundation.
    
      If the Program specifies that a proxy can decide which future
    versions of the GNU General Public License can be used, that proxy's
    public statement of acceptance of a version permanently authorizes you
    to choose that version for the Program.
    
      Later license versions may give you additional or different
    permissions.  However, no additional obligations are imposed on any
    author or copyright holder as a result of your choosing to follow a
    later version.
    
      15. Disclaimer of Warranty.
    
      THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
    APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
    HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
    OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
    THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
    IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
    ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
    
      16. Limitation of Liability.
    
      IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
    WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
    THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
    GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
    USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
    DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
    PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
    EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
    SUCH DAMAGES.
    
      17. Interpretation of Sections 15 and 16.
    
      If the disclaimer of warranty and limitation of liability provided
    above cannot be given local legal effect according to their terms,
    reviewing courts shall apply local law that most closely approximates
    an absolute waiver of all civil liability in connection with the
    Program, unless a warranty or assumption of liability accompanies a
    copy of the Program in return for a fee.
    
                         END OF TERMS AND CONDITIONS
    
                How to Apply These Terms to Your New Programs
    
      If you develop a new program, and you want it to be of the greatest
    possible use to the public, the best way to achieve this is to make it
    free software which everyone can redistribute and change under these terms.
    
      To do so, attach the following notices to the program.  It is safest
    to attach them to the start of each source file to most effectively
    state the exclusion of warranty; and each file should have at least
    the "copyright" line and a pointer to where the full notice is found.
    
        OtakuDB – JSON-based simple database for otaku.
        Copyright (C) 2024-2025. DUB1401.
    
        This program is free software: you can redistribute it and/or modify
        it under the terms of the GNU 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 <http://www.gnu.org/licenses/>.
    
    Also add information on how to contact you by electronic and paper mail.
    
      If the program does terminal interaction, make it output a short
    notice like this when it starts in an interactive mode:
    
        OtakuDB. Copyright (C) 2024-2025. DUB1401.
        This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
        This is free software, and you are welcome to redistribute it
        under certain conditions; type `show c' for details.
    
    The hypothetical commands `show w' and `show c' should show the appropriate
    parts of the General Public License.  Of course, your program's commands
    might be different; for a GUI interface, you would use an "about box".
    
      You should also get your employer (if you work as a programmer) or school,
    if any, to sign a "copyright disclaimer" for the program, if necessary.
    For more information on this, and how to apply and follow the GNU GPL, see
    <http://www.gnu.org/licenses/>.
    
      The GNU General Public License does not permit incorporating your program
    into proprietary programs.  If your program is a subroutine library, you
    may consider it more useful to permit linking proprietary applications with
    the library.  If this is what you want to do, use the GNU Lesser General
    Public License instead of this License.  But first, please read
    <http://www.gnu.org/philosophy/why-not-lgpl.html>.
    

    Visit original content creator repository
    https://github.com/OtakuDB/OtakuDB

  • jakarta-demorepo-cargotracker

    Eclipse Cargo Tracker – Applied Domain-Driven Design Blueprints for Jakarta EE

    Overview

    The project demonstrates how you can develop applications with Jakarta EE using widely adopted architectural best practices like Domain-Driven Design (DDD). The project is directly based on the well known original Java DDD sample application developed by DDD pioneer Eric Evans’ company Domain Language and the Swedish software consulting company Citerus. The cargo example actually comes from Eric Evans’ seminal book on DDD. The original application is written in Spring, Hibernate and Jetty whereas the application is built on Jakarta EE.

    The application is an end-to-end system for keeping track of shipping cargo. It has several interfaces described in the following sections.

    For further details on the project, please visit: https://eclipse-ee4j.github.io/cargotracker/.

    Cargo Tracker cover

    Getting Started

    The project website has detailed information on how to get started.

    The simplest steps are the following (no IDE required):

    • Get the project source code.
    • Ensure you are running Java SE 8 or Java SE 11.
    • Make sure JAVA_HOME is set.
    • As long as you have Maven set up properly, navigate to the project source root and type: mvn clean package cargo:run
    • Go to http://localhost:8080/cargo-tracker

    To set up in Eclipse, follow these steps:

    • Set up Java SE 8 or Java SE 11, Eclipse for Enterprise Java Developers and Payara 5. You will also need to set up Payara Tools in Eclipse.
    • Import this code in Eclipse as a Maven project, Eclipse will do the rest for you. Proceed with clean/building the application.
    • After the project is built (which will take a while the very first time as Maven downloads dependencies), simply run it via Payara 5.

    Exploring the Application

    After the application runs, it will be available at: http://localhost:8080/cargo-tracker/. Under the hood, the application uses a number of Jakarta EE features including Faces, CDI, Enterprise Beans, Persistence, REST, Batch, JSON Binding, JSON Processing, Bean Validation and Messaging.

    There are several web interfaces, REST interfaces and a file system scanning interface. It’s probably best to start exploring the interfaces in the rough order below.

    The tracking interface let’s you track the status of cargo and is intended for the general public. Try entering a tracking ID like ABC123 (the application is pre-populated with some sample data).

    The administrative interface is intended for the shipping company that manages cargo. The landing page of the interface is a dashboard providing an overall view of registered cargo. You can book cargo using the booking interface. One cargo is booked, you can route it. When you initiate a routing request, the system will determine routes that might work for the cargo. Once you select a route, the cargo will be ready to process handling events at the port. You can also change the destination for cargo if needed or track cargo.

    The Handling Event Logging interface is intended for port personnel registering what happened to cargo. The interface is primarily intended for mobile devices, but you can use it via a desktop browser. The interface is accessible at this URL: http://localhost:8080/cargo-tracker/event-logger/index.xhtml. For convenience, you could use a mobile emulator instead of an actual mobile device. Generally speaking cargo goes through these events:

    • It’s received at the origin location.
    • It’s loaded and unloaded onto voyages on it’s itinerary.
    • It’s claimed at it’s destination location.
    • It may go through customs at arbitrary points.

    While filling out the event registration form, it’s best to have the itinerary handy. You can access the itinerary for registered cargo via the admin interface. The cargo handling is done via Messaging for scalability. While using the event logger, note that only the load and unload events require as associated voyage.

    You should also explore the file system based bulk event registration interface. It reads files under /tmp/uploads. The files are just CSV files. A sample CSV file is available under src/test/resources/handling_events.csv. The sample is already set up to match the remaining itinerary events for cargo ABC123. Just make sure to update the times in the first column of the sample CSV file to match the itinerary as well.

    Sucessfully processed entries are archived under /tmp/archive. Any failed records are archived under /tmp/failed.

    Don’t worry about making mistakes. The application is intended to be fairly error tolerant. If you do come across issues, you should report them.

    All data entered is wiped upon application restart, so you can start from a blank slate easily if needed.

    You can also use the soapUI scripts included in the source code to explore the REST interfaces as well as the numerous unit tests covering the code base generally.

    Exploring the Code

    As mentioned earlier, the real point of the application is demonstrating how to create well architected, effective Jakarta EE applications. To that end, once you have gotten some familiarity with the application functionality the next thing to do is to dig right into the code.

    DDD is a key aspect of the architecture, so it’s important to get at least a working understanding of DDD. As the name implies, Domain-Driven Design is an approach to software design and development that focuses on the core domain and domain logic.

    For the most part, it’s fine if you are new to Jakarta EE. As long as you have a basic understanding of server-side applications, the code should be good enough to get started. For learning Jakarta EE further, we have recommended a few links in the resources section of the project site. Of course, the ideal user of the project is someone who has a basic working understanding both Jakarta EE and DDD. Though it’s not our goal to become a kitchen sink example for demonstrating the vast amount of APIs and features in Jakarta EE, we do use a very representative set. You’ll find that you’ll learn a fair amount by simply digging into the code to see how things are implemented.

    Exploring the Tests

    Cargo Tracker’s testing is done using JUnit and Arquillian. The Arquillian configuration uses a remote container (Payara 5). Therefore, to perform a test you will need to make sure to have a container running.

    Testing Locally with Payara

    For testing locally you will first need to run a Payara 5 server.

    You can do that with the following script:

    wget https://repo1.maven.org/maven2/fish/payara/distributions/payara/5.2021.1/payara-5.2021.1.zip
    unzip payara-5.2021.1.zip && cd payara5/bin
    ./asadmin start-domain

    Now for running the tests:

    mvn clean verify -DskipTests=false

    Contributing

    This project complies with the Google Java Style Guide. You can use the google-java-format tool to help you comply with the Google Java Style Guide. You can use the tool with most major IDEs such as Eclipse and IntelliJ.

    In addition, for all XML, XHTML and HTML files we use a column/line width of 100 and we use 4 spaces for indentation. Please adjust the formatting settings of your IDE accordingly.

    Known Issues

    • You may get a log message stating that Payara SSL certificates have expired. This won’t get in the way of functionality, but it will stop log messages from being printed to the IDE console. You can solve this issue by manually removing the expired certificates from the Payara domain, as explained here.
    • If you restart the application a few times, you will run into a bug causing a spurious deployment failure. While the problem can be annoying, it’s harmless. Just re-run the application (make sure to completely shut down Payara first).
    • Sometimes when the server is not shut down correctly or there is a locking/permissions issue, the H2 database that the application uses get’s corrupted, resulting in strange database errors. If this occurs, you will need to stop the application and clean the database. You can do this by simply removing ./cargo-tracker-database from the file system and restarting the application. This directory will typically be under $your-payara-installation/glassfish/domains/domain1/config.
    Visit original content creator repository https://github.com/silviotorre/jakarta-demorepo-cargotracker
  • react-is-in-viewport

    React Is In Viewport

    fit-overlap

    The component allows to track the other React components whether or not it is in the Viewport.


    version codecov Build Status Greenkeeper badge License: MIT PRs Welcome quality

    Package Quality

    Installation

    To install, you can use npm or yarn:

    $ npm install react-is-in-viewport
    $ yarn add react-is-in-viewport

    Props

    Name Type Default value Description
    children React Node or string React component or string that display in UI
    delay number 100 Delay time to execute scrolling event callback
    type ‘fit’ or ‘overlap’ fit Mode to track component fits in the viewport or overlaps with viewport
    id string Identifier of Viewport
    className string Custom CSS class
    autoTrack boolean false It will count how many seconds the user spending on the component
    waitToStartAutoTrack number After waiting how many seconds, then starting the auto track on the component

    The autoTrack only works with type = fit

    Here is how type = 'fit' and type = 'overlap' look like:

    fit

    fit

    overlap

    overlap

    API

    Name Type Parameter Description
    onLoad void When components first appear and fit in the viewport
    onEnter void enterCount When scrolling to a component, the enterCount increase 1
    onLeave void leaveCount When scrolling away from a component, the leaveCount increase 1
    onFocusOut void focusCount When component is not in the viewport, then onFocusOut called with seconds user spent on the component

    Example

    With overlap & fit mode

    https://codesandbox.io/s/react-is-in-viewport-fit-overlap-mode-zx897

    import ReactDOM from 'react-dom';
    import React from 'react';
    import { Viewport } from 'react-is-in-viewport';
    
    class App extends React.Component {
      render() {
        return (
          <div>
            <div style={{ marginTop: '50%' }}>
              <Viewport
                type="fit"
                onLoad={this.onLoadRed}
                onEnter={this.onEnterRed}
                onLeave={this.onLeaveRed}
              >
                <div style={{ height: 100, background: 'red' }}></div>
              </Viewport>
            </div>
    
            <div style={{ marginTop: '200%' }}>
              <Viewport type="overlap" onEnter={this.onEnterBlue} onLeave={this.onLeaveBlue}>
                <div style={{ height: 100, background: 'blue' }}></div>
              </Viewport>
            </div>
          </div>
        );
      }
    
      onLoadRed = () => {
        console.log('component RED loaded')
      };
    
      onEnterRed = (enterTimes) => {
        console.log('enter red', enterTimes);
      };
    
      onLeaveRed = (leaveTimes) => {
        console.log('leave red', leaveTimes);
      };
    
      onEnterBlue = (enterTimes) => {
        console.log('enter blue', enterTimes);
      };
    
      onLeaveBlue = (leaveTimes) => {
        console.log('leave blue', leaveTimes);
      };
    }
    
    ReactDOM.render(<App />, document.getElementById('root'));

    With autoTrack & waitToStartAutoTrack mode

    https://codesandbox.io/s/react-is-in-viewport-autotrack-mode-9f9vz

    import ReactDOM from 'react-dom';
    import React from 'react';
    import { Viewport } from 'react-is-in-viewport';
    
    class App extends React.Component {
      render() {
        return (
          <div>
            <div style={{ marginTop: '50%' }}>
              <Viewport
                autoTrack
                waitToStartAutoTrack={2}
                type="fit"
                onLoad={this.onLoadRed}
                onEnter={this.onEnterRed}
                onLeave={this.onLeaveRed}
                onFocusOut={this.onFocusOut}
              >
                <div style={{ height: 100, background: 'red' }}></div>
              </Viewport>
            </div>
    
            <div style={{ marginTop: '200%' }}>
              <Viewport type="overlap" onEnter={this.onEnterBlue} onLeave={this.onLeaveBlue}>
                <div style={{ height: 100, background: 'blue' }}></div>
              </Viewport>
            </div>
          </div>
        );
      }
    
      onLoadRed = () => {
        console.log('component RED loaded')
      };
    
      onEnterRed = (enterTimes) => {
        console.log('enter red', enterTimes);
      };
    
      onLeaveRed = (leaveTimes) => {
        console.log('leave red', leaveTimes);
      };
    
      onFocusOut = (focusTimes) => {
        console.log('out focus red', focusTimes);
      };
    
      onEnterBlue = (enterTimes) => {
        console.log('enter blue', enterTimes);
      };
    
      onLeaveBlue = (leaveTimes) => {
        console.log('leave blue', leaveTimes);
      };
    }
    
    ReactDOM.render(<App />, document.getElementById('root'));

    License

    This project is licensed under the MIT License – see the LICENSE file for details

    Visit original content creator repository https://github.com/davidnguyen11/react-is-in-viewport