[gnome-build-meta/valentindavid/disable-libvirtd-system] core-deps/libvirt.bst: Disable system units

[Valentin David <valentindavid src gnome org>]

commit 2fe170b487ab9271ccbf44c88be6e0e27e9dc2c3
Author: Valentin David <valentin david codethink co uk>
Date:   Sat Aug 29 22:35:13 2020 +0200

    core-deps/libvirt.bst: Disable system units
    
    libvirtd has 2 modes, system and session. While it can be useful
    to be able to using the system virtual machines, Boxes does not use
    that and uses session virtual machines only. So it is better
    not to start those.
    
    User can re-enable system services with:
    ```
    sudo ln -s /dev/null /etc/systemd/system-preset/80-libvirt.preset
    systemctl preset-all
    ```

 elements/core-deps/libvirt.bst  | 5 +++++
 files/libvirt/80-libvirt.preset | 7 +++++++
 2 files changed, 12 insertions(+)
---
diff --git a/elements/core-deps/libvirt.bst b/elements/core-deps/libvirt.bst
index 85d3d275..2ab6feb1 100644
--- a/elements/core-deps/libvirt.bst
+++ b/elements/core-deps/libvirt.bst
@@ -2,6 +2,8 @@ kind: autotools
 sources:
 - kind: tar
   url: https://libvirt.org/sources/libvirt-6.5.0.tar.xz
+- kind: local
+  path: files/libvirt/80-libvirt.preset
 build-depends:
 - core-deps/rpcsvc-proto.bst
 - freedesktop-sdk.bst:components/libxslt.bst
@@ -41,6 +43,9 @@ config:
     cd build
     %{make-install}
   - mv %{install-root}/var/run %{install-root}
+  - |
+    presetdir="$(pkg-config --variable=systemdsystempresetdir systemd)"
+    install -Dm644 -t "%{install-root}${presetdir}" 80-libvirt.preset
 variables:
   conf-cmd: ../configure
   # --disable-Werror does not work
diff --git a/files/libvirt/80-libvirt.preset b/files/libvirt/80-libvirt.preset
new file mode 100644
index 00000000..3d655a23
--- /dev/null
+++ b/files/libvirt/80-libvirt.preset
@@ -0,0 +1,7 @@
+disable libvirt-guests.service
+disable libvirtd.service
+disable libvirtd.socket
+disable libvirtd-*.socket
+disable virt*d.service
+disable virt*d.socket
+disable virt*d-*.socket