arch/notes.md
2021-10-01 10:50:50 +02:00

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# Notes and TODOs
## Some notes on arch (meta-)package management
* https://disconnected.systems/blog/archlinux-meta-packages/
* https://nerdstuff.org/posts/2020/2020-002_meta_packages/
* https://gitlab.com/archi3linux/meta/-/blob/master/PKGBUILD
* https://github.com/alfredopalhares/arch-pkgbuilds
### Managing custom packages; managing a remote repository
1) One could use [crema](https://gitlab.com/mipimipi/crema)
2) Or some self-made shell scripts: [pkg/de-p1st-repo/README.md](pkg/de-p1st-repo/README.md)
## Notes about PKGBUILD
### Package naming
* [package naming](https://wiki.archlinux.org/index.php/Arch_package_guidelines#Package_naming)
Package names are prefixed with `de-p1st` as this is one of my
domains ([p1st.de](https://p1st.de)) which itself is an abbreviation of
[privacy1st.de](https://privacy1st.de)
### Creating config files
```shell
install -Dm644 $src $pkgdir/$dst
```
Example: [pkg/de-p1st-sudo/PKGBUILD](pkg/de-p1st-sudo/PKGBUILD)
### Changing existing config files
* `holo` from the AUR
* [https://github.com/holocm/holo/blob/master/doc/holo-files.8.pod]()
```shell
install -Dm0544 some-config.conf.holoscript "$pkgdir"/usr/share/holo/files/20-"$pkgname"/etc/path/to/some-config.conf.holoscript
```
Example:
* [pkg/de-p1st-pacman/pacman.conf.holoscript](pkg/de-p1st-pacman/pacman.conf.holoscript)
* [pkg/de-p1st-pacman/PKGBUILD](pkg/de-p1st-pacman/PKGBUILD)
### Changing config files that are not owned by any package
See [pkg/de-p1st-locale/PKGBUILD](pkg/de-p1st-locale/PKGBUILD) for an example.
### Home skeleton
Pacman should **never** change files in `$HOME`. To still be able to include
customized configurations, one can copy them to the skeleton used for new users:
Files from `/etc/skel` are copied to `/home/$USER` when new users are created.
Example: [pkg/de-p1st-gnupg/PKGBUILD](pkg/de-p1st-gnupg/PKGBUILD)
### Enabling services
* systemd.preset - Service enablement presets
* [man 5 systemd.preset](https://www.systutorials.com/docs/linux/man/5-systemd.preset/)
**Note**: the preset name shall start with a two-digit number < 99.
```shell
install -Dm0644 systemd.preset "$pkgdir"/usr/lib/systemd/system-preset/20-"$pkgname".preset
```
Example package:
* [pkg/de-p1st-networkmanager/systemd.preset](pkg/de-p1st-networkmanager/systemd.preset)
* [pkg/de-p1st-networkmanager/PKGBUILD](pkg/de-p1st-networkmanager/PKGBUILD)
**Note**:
Running `systemctl preset-all` resets all installed unit files to the defaults configured in the preset policy files.
This implies: **All manual changes** such as `systemctl enable serviceXYZ` will get lost!
To avoid this, enable your services with systemd-presets!
```shell
echo 'enable NetworkManager.service' | sudo tee -a /usr/lib/systemd/system-preset/20-custom.preset
sudo systemctl preset-all
```
### Multiple providers
Example:
* Two packages (`de-p1st-test2` and `de-p1st-test3`) provide `de-p1st-test`
* If one installs `de-p1st-test` he can interactively choose one which provider to select:
```
$ sudo pacman -S de-p1st-test
:: There are 2 providers available for de-p1st-test:
:: Repository de-p1st
1) de-p1st-test2 2) de-p1st-test3
Enter a number (default=1):
```
## TODOs (Ordered by priority)
* Install more packages with a Makefile, see [toggle-bluetooth/Makefile](pkg/toggle-bluetooth/Makefile)
* de-p1st-cups
* qt-installer-framework
* see https://codeberg.org/privacy1st/qt-installer-framework and https://bbs.archlinux.org/viewtopic.php?pid=1991208
* split up the "base" package:
* base-headless (no fonts required)
* base-graphical (depends on base-headless)
*
* remove "de-p1st-grub" from base
* just one "base" package for both: BIOS and (U)EFI installation!
* installer: support BIOS boot mode? Or drop BIOS support?
* installer: systemd-boot as alternative to GRUB?
* https://wiki.archlinux.org/title/systemd-boot
* AUR-API
* for each PKG: built with docker then sign wit pgp
* signed package db
* installer: Option to disable full disk encryption
* How does Pacman pick the default option? Are packages simply
ordered alphabetically?
* de-p1st-pacman -> ungoogled-chromium
* https://github.com/ungoogled-software/ungoogled-chromium-archlinux#open-build-service-repository
* build for multiple architectures
* https://ownyourbits.com/2018/06/27/running-and-building-arm-docker-containers-in-x86/
* https://ownyourbits.com/2018/06/27/running-and-building-arm-docker-containers-in-x86/#comment-19124