Prerequisites

To set up a AerynOS system to be able to build package recipes, a few prerequisites need to be installed, and a new directory for storing local build artifacts needs to be set up.

Installing the build-essential package

We maintain a build-essential metapackage that should contain the basics for getting started with packaging on AerynOS.

sudo moss sync -u
sudo moss it build-essential

Activating the AerynOS helper scripts

The easiest way to create a local repository is to use the helper script distributed with the AerynOS recipe repository in the tools/ directory.

Start by cloning the recipes/ git repository:

mkdir -pv repos/aerynos/
pushd repos/aerynos
git clone https://github.com/AerynOS/recipes

After the recipes/ git repository has been cloned, symlink helpers.bash into ~/.bashrcd.d/:

popd
mkdir -pv ~/.bashrc.d/
ln -sv ~/repos/aerynos/recipes/tools/helpers.bash ~/.bashrc.d/90-aerynos-helpers.bash

Finally, execute the following in a new terminal tab:

cd ~
gotoaosrepo

If the helpers script has been correctly loaded, the gotoaosrepo command should switch to the directory containing the recipes/ git repository clone.

Setting up git hooks and linters

The just command runner should have been installed as part of build-essential.

Run the following:

gotoaosrepo
just init

This will setup git hooks that will lint for the most common packaging errors upon git commit, as well as fill out commit message templates for you to edit as appropriate.

Setting up git diff auto-conversion of manifest.*.bin files

This will make it so you can view git diff output for binary manifest.*.bin files in both git diff and git log -p . invocations.

Edit the recipe repo .git/config file to contain the following below the [core] section:

[diff "moss"]
    textconv = moss inspect
    binary = true

The recipe repo already contains the .gitattributes file that sets up the moss diff filter referenced here.

Setting up the git gone alias

This will make it so that executing git gone will remove any local branches that no longer exist upstream.

Edit your ~/.gitconfig file to contain the following:

[alias]
    gone = "!f() { git fetch --all --prune; git branch -vv | awk '/: gone]/{print $1}' | xargs git branch -D; }; f"

Adding /etc/subuid and /etc/subgid entries

Since boulder uses user-namespaces to set up isolated build roots, it is necessary to set up a subuid and a subgid file for the relevant users first:

sudo touch /etc/sub{uid,gid}
sudo usermod --add-subuids 1000000-1065535 --add-subgids 1000000-1065535 root
sudo usermod --add-subuids 1065536-1131071 --add-subgids 1065536-1131071 "$USER"

If /etc/subuid and /etc/subgid already exist, adapt the above as appropriate.