use found_refs

lorax_templates/download_flatpaks.tmpl.in

@@ -0,0 +1,49 @@
+## Lorax template to embed Flatpaks into the installer.iso
+
+## Args:
+##  - root                - the root directory of the iso tree
+##  - flatpak_remote_name - the name for the flaptak remote to fetch from
+##  - flatpak_remote_url  - the url for the remote
+##  - flatpak_remote_refs - refs to fetch from the remote (whitespace separated)
+
+<%page args="root, flatpak_remote_name, flatpak_remote_url, flatpak_remote_refs"/>
+<%
+import os
+import re
+import tempfile
+import subprocess
+from pylorax.executils import runcmd_output, setenv
+from pylorax.sysutils import joinpaths
+
+dest_repo=joinpaths(root, "flatpak/repo")
+refs=re.split(r"\s+", flatpak_remote_refs)
+
+# the temporary Flatpak directory is a sibling of the install tree
+flatpak_dir=joinpaths(os.path.dirname(root), "flatpak")
+setenv("FLATPAK_USER_DIR", flatpak_dir)
+flatpak_repo=joinpaths(flatpak_dir, "repo")
+# suppress executing triggers by using an empty directory
+triggers_dir = tempfile.mkdtemp(prefix='flatpak-triggers-')
+setenv("FLATPAK_TRIGGERSDIR", triggers_dir)
+%>
+
+runcmd flatpak config --user --set languages "*"
+runcmd flatpak remote-add --user ${flatpak_remote_name} ${flatpak_remote_url}
+%if len(refs) > 0:
+    # We have to run a DBus session here, because Flatpak wants to talk to
+    # flatpak-oci-authenticator for OCI remotes - even ones that don't require
+    # authentication
+    runcmd dbus-run-session flatpak install -y --user ${flatpak_remote_name} ${flatpak_remote_refs}
+%endif
+runcmd mkdir -p ${root}/flatpak
+runcmd ostree init --repo=${dest_repo} --mode=archive-z2
+<%
+cmd_result = subprocess.run(['ostree', 'refs', '--repo={0}'.format(${flatpak_repo})])
+found_refs = cmd_result.stdout.decode('utf-8').trim().split('\n')
+%>
+%for ref in found_refs:
+    runcmd sh -c "ostree --repo=${dest_repo} pull-local ${flatpak_repo} $(ostree --repo=${flatpak_repo} rev-parse ${flatpak_remote_name}/${ref})"
+    runcmd sh -c "mkdir -p $(dirname ${dest_repo}/refs/heads/${ref})"
+    runcmd sh -c "ostree --repo=${flatpak_repo} rev-parse ${flatpak_remote_name}/${ref} > ${dest_repo}/refs/heads/${ref}"
+%endfor
+runcmd flatpak build-update-repo ${dest_repo}