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Developer Information

If you’re looking to customize the interface for your community or, want to improve it for all then this should help you get started.

Step 1: Fork & Clone

So. The first thing you’re going to need to do is fork & clone this repository.

❯ git clone
# or if you have ssh keys set up
❯ git clone

> Cloning into 'live_map-interface'...
> remote: Enumerating objects: 8288, done.
> remote: Counting objects: 100% (511/511), done.
> remote: Compressing objects: 100% (350/350), done.
> remote: Total 8288 (delta 199), reused 430 (delta 150), pack-reused 7777
> Receiving objects: 100% (8288/8288), 257.39 MiB | 7.10 MiB/s, done.
> Resolving deltas: 100% (2991/2991), done.```

If you’re working on a new feature that you want to push to the main repository then, best practice is to create a new branch.

❯ git checkout -b feature/new-feature

Step 2: Installing Dependencies

In order to work with this repository, you will need a few programs installed. The main one is Node Package Manager (NPM). You can find information on their website on how to install NPM:

It is recommended that you also install yarn but, not it’s not required.

Once npm/yarn is installed you can install the dependencies needed to “build” your code.

❯ npm install 
# or if using yarn
❯ yarn install

> yarn install v1.13.0
> [1/4] Resolving packages...
> [2/4] Fetching packages...
> info fsevents@1.2.13: The platform "win32" is incompatible with this module.
> info "fsevents@1.2.13" is an optional dependency and failed compatibility check. Excluding it from installation.
> [3/4] Linking dependencies...
> [4/4] Building fresh packages...
> Done in 108.30s.

Step 3: Edit code

Hopefully the structure of the project isn’t too alien. I’ve tried to create a directory structure that “makes sense”. For example, the JavaScript files all go in js/src and all the styling files go into style.

Some directory names you may come across include:

  • vendor - Other projects that this project depends on. For example, bootstrap’s files.
  • {first,last}_bundle - This determines where in the HTML page these JS files are loaded.
    • first_bundle - Loaded in the “head”.
    • last_bundle - Loaded after all the other HTML tags.
  • scss - The SCSS files for styling the interface
  • webfonts - Fonts used by the interface

Editing JS files

By default Gulp is configured to file all files ending with .js inside js/src/{first,last}_bundle and bundle them all together into their corresponding dist/*.js file. For example, if you wanted to add some code to head of the interface, you would create a new JS file inside js/src/first_bundle (or another subdirectory if needed) and just run Gulp.

If you wanted to create another directory inside js/src/ for your files then, make sure to add them to gulp. For example, if you wanted to create a directory for some-new-feature then the modified gulpfile.js should included something along the lines of

function pack_some_new_feature() {
    return gulp.src(["js/src/some-new-feature/**/*.js"]) // ALL js files, even ones in subdirectories
        .pipe(concat("some-new-feature.js")) // The file all this code will be placed into
        .pipe(minify({ // Minify the code 
            ext: {
                min: ".js"
            noSource: true
        .pipe(gulp.dest("dist/")); // Output "some-new-feature.js" to the "dist/" folder

exports.default = gulp.series(
    gulp.parallel(pack_js, pack_js_2, pack_css, pack_some_new_feature) // Make sure we run the function we just created

And obviously make sure to include the new JS file in index.html!

Editing SCSS files

By default Gulp is configured to file all files ending with .scss inside style/scss/src/ and bundle them all together into the style/src/style.css file. The style/src/style.css file is the file that is used inside debug.html so, it’s recommended to always build your SCSS before viewing the debug page. There’s a Gulp task set up called sass:watch which, will automatically pick up any changes inside style/scss/src/ and build them to style.css. You can run this by typing the following:

❯ npx gulp sass:watch
# or if using yarn
❯ yarn gulp sass:watch
yarn run v1.13.0
$ live_map-interface\node_modules\.bin\gulp sass:watch
[00:06:05] Using gulpfile live_map-interface\gulpfile.js
[00:06:05] Starting 'sass:watch'...

Step 4: Build!

Since you’ve already installed all the dependencies and what not, this step should be easy. Just run Gulp!

❯ npx gulp
# or if using yarn
❯ yarn gulp
[00:09:16] Using gulpfile live_map-interface\gulpfile.js
[00:09:16] Starting 'default'...
[00:09:16] Starting 'preprocess_sass'...
[00:09:16] Starting 'preprocess_bootstrap'...
[00:09:16] Finished 'preprocess_sass' after 13 ms
[00:09:17] Finished 'preprocess_bootstrap' after 734 ms
[00:09:17] Starting 'pack_js'...
[00:09:17] Starting 'pack_js_2'...
[00:09:17] Starting 'pack_css'...
[00:09:18] Finished 'pack_css' after 915 ms
[00:09:18] Finished 'pack_js_2' after 1 s
[00:09:20] Finished 'pack_js' after 3.19 s
[00:09:20] Finished 'default' after 3.93 s

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