Files
OpenNoodl/dev-docs/tasks/phase-8-distribution/TASK-7.4-linux-distribution.md

387 lines
8.4 KiB
Markdown

# Task 7.4: Linux Universal Distribution
## Problem Statement
Linux support is currently incomplete:
- Only `.deb` target configured
- Someone added Arch Linux support (AUR?) but status unclear
- No AppImage for universal distribution
- No auto-update support for Linux
- Native modules (dugite, desktop-trampoline) may have compatibility issues
## Goals
1. **AppImage**: Universal format that works on any Linux distribution
2. **.deb**: Native experience for Debian/Ubuntu users (largest desktop Linux market)
3. **Auto-update**: AppImage supports electron-updater
4. **Tested**: Verified on Ubuntu 22.04 LTS and 24.04 LTS
## Linux Desktop Market Context
| Distribution Family | Market Share | Target Format |
|---------------------|--------------|---------------|
| Ubuntu/Debian | ~60% | .deb + AppImage |
| Fedora/RHEL | ~15% | AppImage (RPM optional) |
| Arch | ~10% | AppImage + AUR |
| Other | ~15% | AppImage |
**Decision**: AppImage as primary (works everywhere), .deb as secondary (native experience for majority).
## Implementation
### Phase 1: Configure electron-builder for Linux
**Step 1.1: Update package.json**
```json
{
"build": {
"linux": {
"target": [
{
"target": "AppImage",
"arch": ["x64"]
},
{
"target": "deb",
"arch": ["x64"]
}
],
"category": "Development",
"icon": "build/icons",
"synopsis": "Visual low-code React development platform",
"description": "Nodegex is a full-stack low-code platform for building React applications visually.",
"desktop": {
"Name": "Nodegex",
"Comment": "Visual React Development",
"Categories": "Development;IDE;",
"Keywords": "react;low-code;visual;programming;node;"
},
"mimeTypes": [
"x-scheme-handler/nodegex"
]
},
"appImage": {
"artifactName": "${productName}-${version}-${arch}.AppImage",
"license": "LICENSE"
},
"deb": {
"artifactName": "${productName}-${version}-${arch}.deb",
"depends": [
"libgtk-3-0",
"libnotify4",
"libnss3",
"libxss1",
"libxtst6",
"xdg-utils",
"libatspi2.0-0",
"libuuid1",
"libsecret-1-0"
],
"category": "Development"
}
}
}
```
### Phase 2: Handle Native Modules
The trickiest part is ensuring dugite's embedded git and desktop-trampoline work on Linux.
**Step 2.1: Verify dugite Linux binaries**
dugite downloads platform-specific git binaries. Verify they're included:
```bash
# After build, check the AppImage contents
./Nodegex-1.2.0-x64.AppImage --appimage-extract
ls -la squashfs-root/resources/app.asar.unpacked/node_modules/dugite/git/
```
**Step 2.2: Check desktop-trampoline**
```bash
ls -la squashfs-root/resources/app.asar.unpacked/node_modules/desktop-trampoline/build/Release/
file squashfs-root/resources/app.asar.unpacked/node_modules/desktop-trampoline/build/Release/desktop-trampoline
```
**Step 2.3: Verify library dependencies**
```bash
# Check for missing shared libraries
ldd squashfs-root/resources/app.asar.unpacked/node_modules/dugite/git/bin/git
ldd squashfs-root/nodegex
```
### Phase 3: AppImage Auto-Update Support
AppImage is the only Linux format that supports electron-updater.
**Step 3.1: How it works**
1. electron-updater checks GitHub Releases for `latest-linux.yml`
2. Downloads new `.AppImage` to temp location
3. User confirms restart
4. New AppImage replaces old one
5. App restarts
**Step 3.2: Required publish config**
```json
{
"build": {
"publish": {
"provider": "github",
"owner": "the-low-code-foundation",
"repo": "opennoodl"
}
}
}
```
**Step 3.3: Auto-update behavior**
The existing `autoupdater.js` already handles Linux correctly:
```javascript
if (process.platform === 'linux') {
return; // Currently disabled
}
```
We need to **enable** it for AppImage:
```javascript
function setupAutoUpdate(window) {
if (process.env.autoUpdate === 'no') return;
// AppImage auto-update works, .deb does not
if (process.platform === 'linux' && !process.env.APPIMAGE) {
console.log('Auto-update only available for AppImage');
return;
}
// ... rest of auto-update logic
}
```
### Phase 4: Icon Generation
Linux needs multiple icon sizes in PNG format.
**Step 4.1: Create icon set**
```bash
# From a 1024x1024 source icon
mkdir -p build/icons
for size in 16 24 32 48 64 128 256 512 1024; do
convert icon-source.png -resize ${size}x${size} build/icons/${size}x${size}.png
done
```
**Step 4.2: Directory structure**
```
build/
icons/
16x16.png
24x24.png
32x32.png
48x48.png
64x64.png
128x128.png
256x256.png
512x512.png
1024x1024.png
```
### Phase 5: Protocol Handler Registration
For `nodegex://` URLs to work:
**Step 5.1: Desktop file configuration**
The `mimeTypes` config in package.json creates the association. Additionally, update the `protocols` config:
```json
{
"build": {
"protocols": {
"name": "nodegex",
"schemes": ["nodegex"]
}
}
}
```
**Step 5.2: Manual registration (if needed)**
```bash
# For AppImage users who need manual registration
xdg-mime default nodegex.desktop x-scheme-handler/nodegex
```
### Phase 6: Build Script
**Step 6.1: Create Linux build script**
```bash
#!/bin/bash
# scripts/build-linux.sh
set -e
# Build for x64 (most common)
# ARM64 support would require additional setup for native modules
echo "Building Linux targets..."
# AppImage
npx electron-builder --linux AppImage --x64
# Debian package
npx electron-builder --linux deb --x64
echo "Build complete!"
echo ""
echo "Outputs:"
ls -la dist/*.AppImage dist/*.deb 2>/dev/null || echo "No artifacts found"
```
**Step 6.2: Add to package.json**
```json
{
"scripts": {
"build:linux": "./scripts/build-linux.sh",
"build:linux:appimage": "electron-builder --linux AppImage --x64",
"build:linux:deb": "electron-builder --linux deb --x64"
}
}
```
### Phase 7: Testing
**Step 7.1: Test on fresh Ubuntu VM**
```bash
# Ubuntu 22.04 LTS
sudo apt update
sudo apt install -y libfuse2 # Required for AppImage
chmod +x Nodegex-1.2.0-x64.AppImage
./Nodegex-1.2.0-x64.AppImage
```
**Step 7.2: Test .deb installation**
```bash
sudo dpkg -i Nodegex-1.2.0-x64.deb
# If dependencies missing:
sudo apt-get install -f
# Launch
nodegex
```
**Step 7.3: Test protocol handler**
```bash
xdg-open "nodegex://test"
```
**Step 7.4: Verify auto-update (AppImage only)**
1. Install older version
2. Create GitHub Release with newer version
3. Wait for update notification
4. Click "Restart"
5. Verify new version launches
## Known Issues & Workarounds
### AppImage FUSE dependency
Ubuntu 22.04+ doesn't include FUSE by default:
```bash
# Users need to install:
sudo apt install libfuse2
```
Document this in release notes.
### Wayland compatibility
Some Electron features behave differently on Wayland vs X11:
```bash
# Force X11 if issues occur
GDK_BACKEND=x11 ./Nodegex.AppImage
```
### Sandbox issues on some distributions
If sandbox errors occur:
```bash
# Disable sandbox (less secure but works)
./Nodegex.AppImage --no-sandbox
```
Or fix system-wide:
```bash
sudo sysctl -w kernel.unprivileged_userns_clone=1
```
## Files to Modify
| File | Changes |
|------|---------|
| `packages/noodl-editor/package.json` | Add Linux targets, icons, desktop config |
| `packages/noodl-editor/src/main/src/autoupdater.js` | Enable for AppImage |
| `packages/noodl-editor/build/icons/` | Add PNG icon set |
| `scripts/build-linux.sh` | Create build script |
## Success Criteria
1. ✅ AppImage runs on fresh Ubuntu 22.04 LTS
2. ✅ AppImage runs on fresh Ubuntu 24.04 LTS
3. ✅ .deb installs without manual dependency resolution
4. ✅ Auto-update works for AppImage distribution
5.`nodegex://` protocol handler works
6. ✅ Desktop integration (icon, menu entry) works
## Distribution Channels
### GitHub Releases
Both AppImage and .deb uploaded to releases.
### Optional: Snapcraft
```yaml
# snap/snapcraft.yaml (future enhancement)
name: nodegex
base: core22
version: '1.2.0'
summary: Visual low-code React development platform
confinement: classic
```
### Optional: Flathub
Flatpak provides another universal format but requires more setup and maintenance.
## ARM64 Consideration
ARM64 Linux (Raspberry Pi, etc.) would require:
- Cross-compilation setup
- ARM64 dugite binaries
- ARM64 desktop-trampoline build
This is out of scope for initial release but could be added later.