Quick start¶

We assume that you have installed a Lino developer environment as described in Install your Lino developer environment.

In case of problems during the following quick instructions, see Troubleshoot issues with Node.js and npm.

Install NodeJS on your computer:

$ sudo apt install nodejs npm

Get the latest Node.js version using the n package:

$ sudo npm install -g n
$ sudo n stable

Install the Lino React project into NodeJS:

$ go react
$ npm update
$ npm install

Make your first build:

$ npm run dev

Before pushing changes to the repository:

$ git rm -r lino_react/react/static
$ npm run build
$ git add lino_react/react/static

See How to prepare lino_react for commit below.

How to prepare lino_react for commit ¶

The Lino React repository includes the files that get generated by webpack when you run npm run build. If Lino React was a Node.js application we wouldn’t include them because they are just the result of npm run build command. But Lino React is a Python package, not a Node.js package. We don’t want to require a Lino production site to install the Node.js framework just to build these files. That’s why we let webpack generate these files into the lino_react/react/static directory where Django’s collectstatic command will find them.

Let’s say you have done a one-line change in LinoComponents.jsx, you did several npm run dev and finally a npm run build. Now you want to commit and push your changes. Here is how your git status looks now:

$ git st
On branch master
Changes not staged for commit:
  (use "git add/rm <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   lino_react/react/components/LinoComponents.jsx
        modified:   lino_react/react/config/react/main.html
        deleted:    lino_react/react/static/react/main.LinoComponents_LinoDetail.3a2ba6c95a6a1ea45dfa.js
        deleted:    lino_react/react/static/react/main.LinoComponents_LinoDetail.3a2ba6c95a6a1ea45dfa.js.map
        deleted:    lino_react/react/static/react/main.runtime.0d5dac49c1a36c98c50a.js
        deleted:    lino_react/react/static/react/main.runtime.0d5dac49c1a36c98c50a.js.map

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        lino_react/react/static/react/main.LinoComponents_LinoDetail.d6be98efa3b7c0026319.js
        lino_react/react/static/react/main.LinoComponents_LinoDetail.d6be98efa3b7c0026319.js.map
        lino_react/react/static/react/main.runtime.91ad014441c6c21a0d74.js
        lino_react/react/static/react/main.runtime.91ad014441c6c21a0d74.js.map

no changes added to commit (use "git add" and/or "git commit -a")

We can see that four files have been deleted and four similar files are new. That’s because each build uses a new hash in order to make sure the files are not getting cached somewhere.

Rather than manually deleting the four files and then adding their new version, you can git rm the whole lino_react/react/static/react directory, run another build, and then git add the directory whole again:

$ git rm -r lino_react/react/static/react
$ npm run build
$ git add lino_react/react/static/react

The static/react directory contains more than 100 files, but most of them get rebuilt exactly as before. Git detects that there is no difference and so the git add for these files “cancels” the git rm. The result is that you have just two files deleted and two similar files added:

$ git st
On branch master
Changes to be committed:
  (use "git restore --staged <file>..." to unstage)
        deleted:    lino_react/react/static/react/main.LinoComponents_LinoDetail.3a2ba6c95a6a1ea45dfa.js
        deleted:    lino_react/react/static/react/main.LinoComponents_LinoDetail.3a2ba6c95a6a1ea45dfa.js.map
        new file:   lino_react/react/static/react/main.LinoComponents_LinoDetail.6acd0e3ccae181744860.js
        new file:   lino_react/react/static/react/main.LinoComponents_LinoDetail.6acd0e3ccae181744860.js.map
        renamed:    lino_react/react/static/react/main.runtime.0d5dac49c1a36c98c50a.js -> lino_react/react/static/react/main.runtime.1b037ddc1d1b089893ea.js
        renamed:    lino_react/react/static/react/main.runtime.0d5dac49c1a36c98c50a.js.map -> lino_react/react/static/react/main.runtime.1b037ddc1d1b089893ea.js.map

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   lino_react/react/components/LinoComponents.jsx
        modified:   lino_react/react/config/react/main.html

lino_react/react/static¶

The files in this directory will be distributed with the Python package, and Django’s collectstatic command on a Lino site will find them.

It contains two subdirectories:

react is the output path for webpack where it stores minimized js code (see webpack.config.js)
media is also populated by webpack, from files other than JavaScript.

Quick start¶

How to prepare lino_react for commit¶

How to prepare lino_react for commit ¶