mapcomplete/Docs/Development_deployment.md

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Development and deployment
==========================
There are various scripts to help setup MapComplete for deployment and develop-deployment.
This documents attempts to shed some light on these scripts.
Note: these scripts change every now and then - if the documentation here is incorrect or you run into troubles, do
leave a message in [the issue tracker](https://github.com/pietervdvn/MapComplete/issues)
Architecture overview
---------------------
At its core, MapComplete is a static (!) website. There are no servers to host.
The data is fetched from Overpass/OSM/Wikidata/Wikipedia/Mapillary/... and written there directly. This means that any
static file server will do to create a self-hosted version of MapComplete.
Development
-----------
**Windows users**: All scripts are made for linux devices. Use the Ubuntu terminal for Windows (or even better - make
the switch ;) ). If you are using Visual Studio Code you can use
a [WSL Remote](https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-wsl) window, or use the
Devcontainer (see more details later).
To develop and build MapComplete, you
0. Make a fork and clone the repository. (We recommend a shallow clone with `git clone --filter=blob:none <repo>`)
0. Install the nodejs version specified in [.tool-versions](./.tool-versions)
- On linux: install npm first `sudo apt install npm`, then install `n` using npm: ` npm install -g n`, which can
then install node with `n install <node-version>`
- You can [use asdf to manage your runtime versions](https://asdf-vm.com/).
0. Install `npm`. Linux: `sudo apt install npm` (or your favourite package manager), Windows: install
nodeJS: https://nodejs.org/en/download/
0. Run `npm run init` which …
- runs `npm install`
- generates some additional dependencies and files
0. Run `npm run start` to host a local testversion at http://localhost:1234/index.html
0. By default, a landing page with available themes is served. In order to load a single theme, use `layout=themename`
or `userlayout=true#<layout configuration>` as [Query parameter](URL_Parameters.md). Note that the shorter URLs (
e.g. `bookcases.html`, `aed.html`, ...) _don't_ exist on the development version.
Development using Windows
------------------------
For Windows you can use the devcontainer, or the WSL subsystem.
Raw installation
0. Clone the repo
1. Install `npm` and install `ts-node` globally with `npm install -g ts-node`
2. Execute `npm run init`. It will install and build some assets
3. Run `npm run start` to start the dev server
To use the WSL in Visual Studio Code:
1. Install a WSL Distribution (e.g. Ubuntu)
2. Install basic dependencies `sudo apt install make g++`
3. Install NVM `wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash`
4. Use NVM to install node 16.x: `nvm install 16.9.1`
5. Activate the node version: `nvm use 16.9.1`
6. Install `npm` using `sudo apt install npm`.
7. Install the [Remote - WSL](https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-wsl) extension and it's dependencies.
8. Open a remote WSL window using the button in the bottom left.
9. Make a fork and clone the repository.
10. Run `npm run init` and generate some additional dependencies and generated files. Note that it'll install the
dependencies too
11. Run `npm run start` to host a local testversion at http://localhost:1234/index.html
12. By default, a landing page with available themes is served. In order to load a single theme, use `layout=themename`
or `userlayout=true#<layout configuration>` as [Query parameter](URL_Parameters.md). Note that the shorter URLs (
e.g. `bookcases.html`, `aed.html`, ...) _don't_ exist on the development version.
To use WSL without Visual Studio Code you can replace steps 7 and 8 by opening up a WSL terminal
On mac
------
Install the `Command line tools for XCode which you can find [here](https://developer.apple.com/download/all/). You might need an apple dev account for this.
Automatic deployment
--------------------
Currently, the master branch is automatically deployed to 'mapcomplete.osm.be' by a github action.
Every branch is automatically built (upon push) to 'pietervdvn.github.io/mc/<branchname>' by a github action.
Deploying a fork
----------------
A script creates a webpage for every theme automatically, with some customizations in order to:
- to have shorter urls
- have individual social images
- have individual web manifests
This script can be invoked with `npm run prepare-deploy`
If you want to deploy your fork:
0. `npm run prepare-deploy`
1. `npm run build`
2. Copy the entire `dist` folder to where you host your website. Visiting `index.html` gives you the landing page,
visiting `yourwebsite/<theme>` should bring you to the appropriate theme.
Weird errors
------------
Try removing `node_modules`, `package-lock.json` and `.cache`
Misc setup
----------
~~The json-git-merger is used to quickly merge translation
files, [documentation here](https://github.com/jonatanpedersen/git-json-merge#single-project--directory).~~
This merge driver is broken and would sometimes drop new questions or duplicate them... Not a good idea!
Overview of package.json-scripts
--------------------------------
- `increase-memory`: this is a big (and memory-intensive) project to build and run, so we give nodejs some more RAM.
- `start`: start a development server.
- `test`: run the unit tests
- `init`: Generates and downloads various assets which are needed to compile
- `generate:editor-layer-index`: downloads the editor-layer-index-json from osmlab.github.io
- `generate:images`: compiles the SVG's into an asset
- `generate:translations`: compiles the translation file into a javascript file
- `generate:layouts`: uses `index.html` as template to create all the theme index pages. You'll want to run `clean` when
done
- `generate:docs`: generates various documents, such as information about available metatags, information to put on
the [OSM-wiki](https://wiki.openstreetmap.org/wiki/MapComplete),...
- `generate:report`: downloads statistics from OsmCha, compiles neat graphs
- `generate:cache:speelplekken`: creates an offline copy of all the data required for one specific (paid for) theme
- `generate:layeroverview`: reads all the theme- and layerconfigurations, compiles them into a single JSON.
- `reset:layeroverview`: if something is wrong with the layeroverview, creates an empty one
- `generate:licenses`: compiles all the license info of images into a single json
- `optimize:images`: attempts to make smaller pngs - optional to run before a deployment
- `generate`: run all the necesary generate-scripts
- `build`: actually bundle all the files into a single `dist/`-folder
- `prepare-deploy`: create the layouts
- `deploy:staging`,`deploy:pietervdvn`, `deploy:production`: deploy the latest code on various locations
- `lint`: get depressed by the amount of warnings
- `clean`: remove some generated files which are annoying in the repo