community.general/test/integration/targets/setup_flatpak_remote

Create a dummy flatpak repository remote

This document describes how to create a local flatpak dummy repo. Just like the one contained in the files/repo.tar.gxz archive.

Create a hello world app

Prerequisites:

• flathub

Prepare the environment:

flatpak install --system flathub org.freedesktop.Platform//1.6 org.freedesktop.Sdk//1.6

Create a hello world executable:

echo $'#!/bin/sh\necho hello world' > hello.sh

To create dummy flatpaks, run this (defining a unique NUM for every flatpak to add):

export NUM=1
flatpak build-init appdir$NUM com.dummy.App$NUM org.freedesktop.Sdk org.freedesktop.Platform 1.6;
flatpak build appdir$NUM mkdir /app/bin;
flatpak build appdir$NUM install --mode=750 hello.sh /app/bin;
flatpak build-finish --command=hello.sh appdir$NUM

Create a repo and/or add the app to it

Create a repo and add the file to it in one command:

flatpak build-export repo appdir$NUM stable

Create flatpak*-files

Put a flatpakref file under the repo folder (repo/com.dummy.App1.flatpakref):

[Flatpak Ref]
Title=Dummy App$NUM
Name=com.dummy.App$NUM
Branch=stable
Url=file:///tmp/flatpak/repo
GPGKey={{ base64-encoded public KEY }}
IsRuntime=false
RuntimeRepo=https://flathub.org/repo/flathub.flatpakrepo

Add a .flatpakrepo file to the repo folder (repo/dummy-repo.flatpakrepo):

[Flatpak Repo]
Title=Dummy Repo
Url=file:///tmp/flatpak/repo
Comment=Dummy repo for ansible module integration testing
Description=Dummy repo for ansible module integration testing
GPGKey={{ base64-encoded public KEY }}

Sign the repo

Create a new key in a new gpg home folder (On RedHat systems, the executable needs to addressed as gpg2):

mkdir gpg
gpg --homedir gpg --quick-gen-key test@dummy.com

Sign the repo and summary file, you need to redo this when you update the repository:

flatpak build-sign repo --gpg-sign=KEY_ID --gpg-homedir=gpg
flatpak build-update-repo repo --gpg-sign=KEY_ID --gpg-homedir=gpg

Export the public key as a file:

gpg --homedir=gpg --export KEY_ID > dummy-repo.gpg

Create base64-encoded string from gpg-file for GPGKey= property in flatpak*-files:

base64 dummy-repo.gpg | tr -d '\n'

How to use the repo

Now you can add the repo folder as a local repo:

flatpak --system remote-add --gpg-import=/tmp/flatpak/repo/dummy-repo.gpg dummy-repo /tmp/flatpak/repo

Or, via .flatpakrepo file:

flatpak --system remote-add dummy-repo /tmp/flatpak/repo/dummy-repo.flatpakrepo

And install the hello world flatpaks like this:

flatpak --system install dummy-repo com.dummy.App$NUM

Or from flatpakref:

flatpak --system install --from /tmp/flatpak/repo/com.dummy.App$NUM.flatpakref

Run the app:

flatpak run com.dummy.App$NUM

To install an app without any runtime dependencies (the app will be broken, but it is enough to test flatpak installation):

flatpak --system install --no-deps dummy-repo com.dummy.App$NUM

Sources:

• https://blogs.gnome.org/alexl/2017/02/10/maintaining-a-flatpak-repository/

• http://docs.flatpak.org/en/latest/first-build.html