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paranext-multi-extension-template

Template for creating multiple Platform.Bible extensions in one repo

Template Info

This is a webpack project template pre-configured to build an arbitrary number of Platform.Bible extensions. It contains the bare minimum of what a multi-extension repo needs. Note that many of the files mentioned in Summary are not present in this template because they describe extension code which must be added to this template. For inspiration on what extensions in a multi-extension repo could look like, refer to any repo forked from this template. An example would be the paranext-sample-extensions [MISSING! PLEASE ADD WHEN AVAILABLE].

Customize repo details

Follow these instructions to customize the template to be your own Platform.Bible extension repo.

Install and hook up to the template

To make the process of customizing from the template as smooth as possible, we recommend you do the following before anything else:

Replace placeholders

  • At the top of this README.md:

    • Replace the first line # paranext-multi-extension-template with # your-extension-repo-name
    • Below the first line, replace the repo description with your own description
  • In package.json:

    • Replace "paranext-multi-extension-template" with "your-extension-repo-name"
    • Update ownership information and other relevant fields as desired
  • In LICENSE:

    • Adjust as desired (feel free to choose a different license)
    • If you choose to stay with the current license, update the copyright statement

Create your first extension in this repo

Follow the steps in To create a new extension in this repo to create your first extension in this repo! You can follow the same steps to create new extensions as desired.

Hide Template Info

Once finished customizing this template to be your own, you can uncomment the HTML comment tag above the Template Info section to hide this template-related info in this readme. You can do this by clicking on the line and doing CTRL + / in VS Code. You can also do this manually by removing the first opening '<!--' and the only closing '-->' on the line. Leaving this info commented in your readme will hide it in your readme while avoiding merge conflicts if you decide to update this repo and extensions from the templates in the future. If you never want to update this repo and extensions from the templates, you can remove the Template Info section and sub-sections of this readme.

Note: if you update this repo and extensions from the templates, there may be important changes in this section like additional customizations you must make to this repo. Please keep an eye out for readme changes when updating from the template.

Summary

This is a webpack project configured to build Platform.Bible extensions. The general file structure is as follows:

  • src/ contains the source code for all extensions
    • Each sub-folder in src/ with a manifest.json in it is an extension
      • package.json contains information about this extension's npm package. It is required for Platform.Bible to use the extension properly. It is copied into the build folder
      • manifest.json is the manifest file that defines the extension and important properties for Platform.Bible. It is copied into the build folder
      • src/ contains the source code for the extension
        • src/main.ts is the main entry file for the extension
        • src/types/<extension_name>.d.ts is this extension's types file that defines how other extensions can use this extension through the papi
        • *.web-view.tsx files will be treated as React WebViews
        • *.web-view.html files are a conventional way to provide HTML WebViews (no special functionality)
      • assets/ contains asset files the extension and its WebViews can retrieve using the papi-extension: protocol, as well as textual descriptions in various languages. It is copied into the build folder
        • assets/displayData.json contains (optionally) a path to the extension's icon file as well as text for the extension's display name, short summary, and path to the full description file
        • assets/descriptions/ contains textual descriptions of the extension in various languages
          • assets/descriptions/description-<locale>.md contains a brief description of the extension in the language specified by <locale>
      • contributions/ contains JSON files the platform uses to extend data structures for things like menus and settings. The JSON files are referenced from the manifest
      • public/ contains other static files that are copied into the build folder
  • dist/ is a generated folder containing the built extension files
  • release/ is a generated folder containing zips of the built extension files

To install

Install dependencies:

  1. Follow the instructions to install paranext-core.
  2. In this repo, run npm install to install local and published dependencies

Note: running npm install automatically adds remotes that help with updating from the templates.

[Optional] Adding remotes manually

Adding remotes manually

To add these remotes manually, run the following commands:

git remote add paranext-multi-extension-template https://github.com/paranext/paranext-multi-extension-template

git remote add paranext-extension-template https://github.com/paranext/paranext-extension-template

Configure paths to paranext-core repo

In order to interact with paranext-core, you must point package.json to your installed paranext-core repository:

  1. Follow the instructions to install paranext-core. We recommend you clone paranext-core in the same parent directory in which you cloned this repository so you do not have to reconfigure paths to paranext-core.
  2. If you cloned paranext-core anywhere other than in the same parent directory in which you cloned this repository, update the paths to paranext-core in this repository's package.json to point to the correct paranext-core directory.

To run

Running Platform.Bible with these extensions

To run Platform.Bible with these extensions:

npm start

Note: The built extensions will be the dist folder. In order for Platform.Bible to run these extensions, you must provide the directory to these built extensions to Platform.Bible via a command-line argument. This command-line argument is already provided in this package.json's start script. If you want to start Platform.Bible and use these extensions any other way, you must provide this command-line argument or put the dist folder into Platform.Bible's extensions folder.

Building these extensions independently

To watch extension files (in src) for changes:

npm run watch

To build the extensions once:

npm run build

To package for distribution

To package these extensions into a zip file for distribution:

npm run package

To create a new extension in this repo

To create a new extension in this repo, make sure your repo has no working changes, then run the following command (replace <extension_name> with the preferred extension name. This will also be the extension's folder name in the src folder):

npm run create-extension -- <extension_name>

Then follow the instructions for customizing the new extension.

Note: The merge/squash commits created when creating a new extension are important; Git uses them to compare the files for future updates. If you edit this repo's Git history, please preserve these commits (do not squash them, for example) to avoid duplicated merge conflicts in the future.

[Optional] Creating a new extension manually

Manually create a new extension

Alternatively, you can create a new extension manually:

git fetch paranext-extension-template main

git subtree add --prefix src/<extension_name> paranext-extension-template main --squash

After running these commands, run a regex find and replace inside the new extension folder to fix the file paths pointing to paranext-core:

  • Find: ([^/])\.\.\/paranext-core
  • Replace with: $1../../../paranext-core

You can ignore occurrences from many files. Please see ./lib/git.util.ts -> formatExtensionFolder for more information.

To update this repo and extensions from the templates

This project is forked from paranext-multi-extension-template, and its extensions are derived from paranext-extension-template. Both are updated periodically and will sometimes receive updates that help with breaking changes on paranext-core. We recommend you periodically update your repo and extensions by merging the latest template updates into them.

To update this repo including all extensions to have the latest updates and upgrades from the templates, make sure your repo has no working changes, then run the following npm script:

npm run update-from-templates

If you encounter errors from merge conflicts, please resolve the merge conflicts, finish the commit, and run the script above again.

Note: The merge/squash commits created when updating this repo and its extensions from the templates are important; Git uses them to compare the files for future updates. If you edit this repo's Git history, please preserve these commits (do not squash them, for example) to avoid duplicated merge conflicts in the future.

[Optional] Update from the templates manually

Update from the templates manually

Alternatively, you can update from the templates manually.

Manually update this repo from paranext-multi-extension-template

git fetch paranext-multi-extension-template main

git merge paranext-multi-extension-template/main --allow-unrelated-histories

Manually update extensions from paranext-extension-template

git fetch paranext-extension-template main

For each extension, run the following (replace <extension_name> with each extension's folder name):

git subtree pull --prefix src/<extension_name> paranext-extension-template main --squash

Special features in this project

This project has special features and specific configuration to make building extensions for Platform.Bible easier. In the following expandable section are a few important notes:

Expand to read about special features in this project

React WebView files - .web-view.tsx

Platform.Bible WebViews must be treated differently than other code, so this project makes doing that simpler:

  • WebView code must be bundled and can only import specific packages provided by Platform.Bible (see externals in webpack.config.base.ts), so this project bundles React WebViews before bundling the main extension file to support this requirement. The project discovers and bundles files that end with .web-view.tsx in this way.
    • Note: while watching for changes, if you add a new .web-view.tsx file, you must either restart webpack or make a nominal change and save in an existing .web-view.tsx file for webpack to discover and bundle this new file.
  • WebView code and styles must be provided to the papi as strings, so you can import WebView files with ?inline after the file path to import the file as a string.

Built-in Tailwind CSS support

This project is equipped with Tailwind CSS configured the same way it is configured in Platform.Bible's React component library platform-bible-react to enable WebViews to match Platform.Bible's look and feel. To add Tailwind CSS to your WebView, simply import your extension's ./src/tailwind.css file into your WebView's style .scss file (note that you should not add the .css extension when importing local CSS files into .scss files):

@import './path/to/src/tailwind';

Adding this import to your WebView's styles enables Tailwind CSS in the WebView. Alternatively, you can directly use ./src/tailwind.css as your WebView's style file if you do not need any additional CSS. Important Tailwind configuration notes:

  • This project's Tailwind's configuration is set up with the prefix tw-, so all Tailwind classes must have tw- at the beginning (e.g. tw-bg-purple-500).
  • Tailwind's preflight is enabled by default, meaning some default HTML tag styles are significantly modified. You can disable it or restrict its scope if desired. However, we generally recommend instead using @tailwindcss/typography, included in this project's Tailwind configuration by default, when displaying flowing content.
  • You can apply theme colors using Tailwind classes corresponding to the CSS property and theme color variable name like tw-bg-primary.

Please see the wiki's Tailwind CSS in Web Views page for more information about using Tailwind in your web view.

Special imports

  • Adding ?inline to the end of a file import causes that file to be imported as a string after being transformed by webpack loaders but before bundling dependencies (except if that file is a React WebView file, in which case dependencies will be bundled). The contents of the file will be on the file's default export.
    • Ex: import myFile from './file-path?inline
  • Adding ?raw to the end of a file import treats a file the same way as ?inline except that it will be imported directly without being transformed by webpack.

Misc features

  • Platform.Bible extensions' code must be bundled all together in one file, so webpack bundles all the code together into one main file per extension.
  • Platform.Bible extensions can interact with other extensions, but they cannot import and export like in a normal Node environment. Instead, they interact through the papi. As such, each extension's src/types folder contains its declarations file that tells other extensions how to interact with it through the papi.

Two-step webpack build

These extensions are built by webpack (webpack.config.ts) in two steps: a WebView bundling step and a main bundling step:

Build 1: TypeScript WebView bundling

Webpack (./webpack/webpack.config.web-view.ts) prepares TypeScript WebViews for use and outputs them into temporary build folders adjacent to the WebView files:

  • Formats WebViews to match how they should look to work in Platform.Bible
  • Transpiles React/TypeScript WebViews into JavaScript
  • Bundles dependencies into the WebViews
  • Embeds Sourcemaps into the WebViews inline

Build 2: Main and final bundling

Webpack (./webpack/webpack.config.main.ts) prepares the main extension files and bundles each extension together into the dist folder:

  • Transpiles the main TypeScript file and its imported modules into JavaScript
  • Injects the bundled WebViews into the main file
  • Bundles dependencies into the main file
  • Embeds Sourcemaps into the file inline
  • Packages everything up into an extension folder dist

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