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nativefier/docs/development.md
Ronan Jouchet cde5c1e13b Fix failing to global-sudo-install due to postinstall script (fix #923)
As documented in https://github.com/jiahaog/nativefier/issues/923#issuecomment-599300317 ,

- #923 is caused by installing placeholder app deps at nativefier
  *install* time, with yarn (8.0.2) or npm (8.0.3). This is new in
  Nativefier 8.x, for the motivations behind it, see
  https://github.com/jiahaog/nativefier/pull/898#issuecomment-583865045

- During testing, I did test global installs, but never to a
  system / non-user-writable path (my `$npm_config_prefix` is set to
  `"$HOME/.node_modules"`)

- But without such a config and when installing globally to a
  non-user-writable/system path with `sudo npm i -g nativefier`,

    - Installation of nativefier core works...

    - ... but then `postinstall` tries to do its job of installing
    app deps, and fails in various OS-dependent ways, but all about
    access rights.
    I suspect that, although main nativefier install runs as `su` with
    access rights to system paths, `postinstall` scripts are run *out*
    of `su`.
    That would make sense for security reasons: out of hook scripts,
    npm knows exactly what will be touched in your filesystem: it's the
    static contents of the published tarball; a postinstall script with
    sudo rights could do nasty dynamic stuff. So, although I don't see
    any mention of that in
    [npm-scripts docs / hooks](https://docs.npmjs.com/misc/scripts#hook-scripts)
    and I haven't dug npm/cli's code, I can understand it.

So, reverting back to `webpack`ing the placeholder app, as done pre-8.0.
2020-03-16 21:06:03 -04:00

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Markdown

# Development Guide
## Setup
First, clone the project
```bash
git clone https://github.com/jiahaog/nativefier.git
cd nativefier
```
Install dependencies for both the CLI and the Electron app:
```bash
# Under Linux and macOS:
npm run dev-up
# Under Windows:
npm run dev-up-win
```
Build nativefier:
```bash
npm run build
```
Set up a symbolic link so that running `nativefier` calls your dev version with your changes:
```bash
npm link
which nativefier
# -> Should return a path, e.g. /home/youruser/.node_modules/lib/node_modules/nativefier
# If not, be sure your `npm_config_prefix` env var is set and in your `PATH`
```
After doing so, you can run Nativefier with your test parameters:
```bash
nativefier --your-awesome-new-flag 'https://your-test-site.com'
```
Then run your nativefier app *through the command line too* (to see logs & errors):
```bash
# Under Linux
./your-test-site-linux-x64/your-test-site
# Under Windows
your-test-site-win32-x64/your-test-site.exe
# Under macOS
open -a YourTestSite.app
```
## Linting & formatting
Nativefier uses [Prettier](https://prettier.io/), which will shout at you for
not formatting code exactly like it expects. This guarantees a homogenous style,
but is painful to do manually. Do yourself a favor and install a
[Prettier plugin for your editor](https://prettier.io/docs/en/editors.html).
## Tests
- To run all tests, `npm t`
- To run only unit tests, `npm run test:unit`
- To run only integration tests, `npm run test:integration`
- Logging is suppressed by default in tests, to avoid polluting Jest output.
To get debug logs, `npm run test:withlog` or set the `LOGLEVEL` env. var.
- For a good live experience, open two terminal panes/tabs running code/tests watchers:
1. Run a TSC watcher: `npm run build:watch`
2. Run a Jest unit tests watcher: `npm run test:watch`