flatpak: add tests in CI, add no_dependencies parameter (#2751) (#2754)

* Similar version restrictions than flatpak_remote tests.

* ...

* Try to work around missing dependencies.

* Revert "Try to work around missing dependencies."

This reverts commit 66a4e38566.

* Add changelog.

* App8 -> App2; make sure that there are two apps App1 and App2.

* Fix forgotten variabe.

* Remove test notices.

* Seems like flatpak no longer supports file:// URLs.

The tests would need to be rewritten to offer the URL via http:// instead.

* Try local HTTP server for URL tests.

* ...

* Lint, add status check.

* Add boilerplate.

* Add 'ps aux'.

* Surrender to -f.

* Work around apparent flatpak bug.

* Fix YAML.

* Improve condition.

* Make sure test reruns behave better.

(cherry picked from commit bb37b67166)

Co-authored-by: Felix Fontein <felix@fontein.de>

tests/integration/targets/setup_flatpak_remote/create-repo.sh

@@ -1,51 +1,59 @@
 #!/usr/bin/env bash
 set -eux
 
-flatpak install -y --system flathub org.freedesktop.Platform//1.6 org.freedesktop.Sdk//1.6
-
-echo $'#!/bin/sh\necho hello world' > hello.sh
-
-export NUM=1
-flatpak build-init appdir$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
-
-flatpak build-export repo appdir$NUM stable
+# Delete traces from last run
+rm -rf appdir* dummy-repo.gpg gpg hello.sh repo
 
+# Create GPG key
 mkdir -p gpg
 chmod 0700 gpg
 gpg --homedir gpg --batch --passphrase '' --quick-gen-key test@dummy.com future-default default 10y
-
 KEY_ID=$(gpg --homedir=gpg --list-keys --with-colons test@dummy.com | grep fpr: | head -1 | cut -d ':' -f 10)
-
 gpg --homedir=gpg --export "${KEY_ID}" > dummy-repo.gpg
-
 BASE64_PUBLIC_KEY=$(base64 dummy-repo.gpg | tr -d '\n')
 
-cat > repo/com.dummy.App1.flatpakref <<EOF
-[Flatpak Ref]
-Title=Dummy App$NUM
-Name=com.dummy.App$NUM
-Branch=stable
-Url=file:///tmp/flatpak/repo
-GPGKey=${BASE64_PUBLIC_KEY}
-IsRuntime=false
-RuntimeRepo=https://flathub.org/repo/flathub.flatpakrepo
-EOF
+# Install dependencies
+flatpak install -y --system flathub org.freedesktop.Platform//1.6 org.freedesktop.Sdk//1.6
 
+# Add individual flatpaks
+echo $'#!/bin/sh\necho hello world' > hello.sh
+
+for NUM in 1 2; do
+    flatpak build-init appdir${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}
+
+    flatpak build-export repo appdir${NUM} stable
+
+    cat > repo/com.dummy.App${NUM}.flatpakref <<EOF
+        [Flatpak Ref]
+        Title=Dummy App${NUM}
+        Name=com.dummy.App${NUM}
+        Branch=stable
+        Url=file:///tmp/flatpak/repo
+        GPGKey=${BASE64_PUBLIC_KEY}
+        IsRuntime=false
+        RuntimeRepo=https://flathub.org/repo/flathub.flatpakrepo
+EOF
+done
+
+# Build repository
 cat > repo/dummy-repo.flatpakrepo <<EOF
-[Flatpak Repo]
-Title=Dummy Repo
-Url=file:///tmp/flatpak/repo
-Comment=Dummy repo for ansible module integration testing
-Description=Dummy repo for ansible module integration testing
-GPGKey=${BASE64_PUBLIC_KEY}
+    [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_PUBLIC_KEY}
 EOF
 
 flatpak build-sign repo --gpg-sign="${KEY_ID}" --gpg-homedir=gpg
 flatpak build-update-repo repo --gpg-sign="${KEY_ID}" --gpg-homedir=gpg
+
+# Compress repository
 tar cvfJ repo.tar.xz repo/
 mv repo.tar.xz files/
 
+# Cleanup
 rm -rf appdir* dummy-repo.gpg gpg hello.sh repo