Z3Guide Documentation

This repository contains sources of Z3Guide, an online tutorial for Z3 powered by RiSE at Microsoft Research.

The rest of this page is for developers contributing to the tutorial docs of Z3.

Table of Content

1. Developer Setup
   1. Local Setup
   2. Codespaces
2. Development
   1. Contributing to Existing Materials
   2. Creating New Tutorial Materials
   3. Testing the Website
3. Manually Updating z3-solver
4. Code of Conduct
5. Trademarks

Developer Setup

Local Setup (not using Codespaces)

• install node.js >= 16.15.1
• install yarn globally if needed

npm install -g yarn

• Set up repo and start development following the steps in Development.

Codespaces

These instruction use GitHub Codespaces, a convienient way to get a perfect cloud development environment. Your organization may or may not support Codespaces.

• From this repository, click on the green <> Code button, select the Codespaces tab and then Create codespaces on main. The setup might take a couple of minutes.

• From there, a VSCode tab will open in your browser. You may now edit, test and commit to the repository just like on your local machine.

  • All command line instructions assume a bash-like terminal.

• Set up repo and start development following the steps in Development.

Microsoft Employees ONLY

• Join the Microsoft github organization from Microsoft Open Source via the Employee sign-in at the bottom.

  • From there, go to the GitHub for Open Source at Microsoft tab and follow the instructions to join the organization via the management portal.

Development

• Change the working directory to website:

cd website

• From website, run the script to install dependencies

yarn

• Launch the docs server (which does client-side rendering and allows for hot reloading, so that you see your changes immediately reflected to the locally running page)

yarn clear; # for clearing cache
yarn start; 

• Click on the generated URL in the terminal output to see the website now running locally.

Inspecting the Output from the Build

• In case you want to inspect the output (.html files etc. from server-side rendering) from the build, you can run

yarn clear; # clearing your cache first is always recommended
yarn build;

and if successful, you should see a build directory under website.

• If you want to see how these output files are rendered in the browser, you may run

yarn serve

Note that this is different from yarn start, as yarn serve does not do hot-reloading because it is simply serving the files under build rather than rebuilding everything from scratch for every change you make, like what yarn start does.

Contributing to Existing Tutorial Materials

The online Z3 Guide serves multiple instances of tutorial materials: currently it has a Z3 tutorial in SMTLIB format, and Programming Z3 in different language bindings.

The instances are hosted under website/docs-smtlib and website/docs-programming, respectively. To contribute to existing tutorial materials, you may add/edit materials in either directory.

• You may find the Docusaurus documentation on Docs useful, especially for configuring the sidebar.

• Note that Docusaurus does live reload, so that every change you make to website/docs will be immediately reflected in the locally running tab.

• For all Z3-SMTLIB code snippets, please use the following Markdown code blocks format:

  ```z3
  (exec-this-command arg)
  ```
  

• Any Z3 runtime error with the code specified in the code block above would fail the build. However, you may intentionally bypass the errors by using flags of no-build or ignore-errors:

  ```z3 no-build
  give me the error on the webpage I know it is invalid
  ```
  

  or

  ```z3 ignore-errors
  I know this snippet is problematic but I want to teach about error messages so show them
  ```
  

• You may also add Z3-JavaScript or Z3-Python code snippets using Markdown code blocks, e.g.,:

  ```z3-js
  // some z3-js code
  ```
  

  and

  ```z3-python
  # some z3-python code
  ```
  

  and the flags of no-build and ignore-errors remain applicable to these code blocks.

  Note that we currently support output rendering and code editing for Z3-SMTLIB and Z3-JavaScript code snippets, with similar support for Z3-Python coming soon.

• Programming Z3 in other language bindings is not supported at the moment.

• Sidebar content is maintained in files under website/sidebars. The Z3-SMTLIB guide uses website/sidebars/smtlibSidebars.js, while the Programming Z3 (with other language bindings) guide uses website/sidebars/programmingSidebars.js. If you find your new content missing from either sidebar, please modify the respective sidebar file accordingly.

Creating New Tutorial Materials

The process of creating new tutorial materials is similar to the above, except for the following additional steps:

1. You will need to create a new docs-* directory under website. E.g., website/docs-api.
2. You will need a JavaScript file for configuring the sidebar for your docs under website/sidebars. The sidebar can be generated automatically. You may simply make a renamed copy of programmingSidebars.js for such automation.
3. You will need to go to docusaurus.config.js to add additional configurations so that the build process can pick up the new directories. Search for comments beginning with [NEW DOCS] within the file for more instructions.

Testing the Website

We provided a test file that contains all kinds of Z3 (SMTLIB and JavaScript) code snippets, docs-playground/_03.test.md. To test if the interactivity with Z3 snippets works as expected, you may remove the underscord at the beginning of the file name, and run

yarn start

to access the file at https://localhost:[PORT]/z3guide/playground/test, where [PORT] is 3000 by default or the port number you specified in docusaurus.config.js.

You may add more code snippets to this test file, or create your own test file under any docs-* directory your prefer. We recommend putting the test files under docs-playground.

When you are done testing, make sure to add the underscore back to the test file name, so that the content will not be included in rendering the website.

Manually Updating z3-solver

Upgrades of z3-solver should be done ONLY you are certain that the latest version of z3-solver works well with the existing examples and website infrastructure. We provide a script to automate the manual upgrade process:

# remember to switch into the `website` directory first
yarn upgrade-z3

The script will update z3-solver to the latest and then try to build the website. If the build fails, then it will downgrade z3-solver to the version before your upgrade. It is unlikely that the update itself fails.

After done, make sure the field dependencies.z3-solver in website/package.json is exactly the version that you just upgraded to. For example, if you just upgraded to version 4.10.1, it should look like

{
  //...
  "dependencies": {
    //...
    "z3-solver": "4.10.1" // it should not be "^4.10.1" or "~4.10.1" or any other values that contain other symbols
  }
}

So that we make sure that yarn install always picks up the exact version of z3-solver that you mean for the website to run on.

Microsoft Open Source Code of Conduct

This project is hosted at https://github.com/microsoft/z3guide/. This project has adopted the Microsoft Open Source Code of Conduct.

Resources:

• Microsoft Open Source Code of Conduct
• Microsoft Code of Conduct FAQ
• Contact opencode@microsoft.com with questions or concerns

Trademarks

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.