dnf: allow whitelisting plugins through [Host] configuration

See-Also: systemd#700 (comment)
Signed-off-by: Jake Helmert <[email protected]>

NEWS.md

@@ -2,6 +2,8 @@
 
 ## v23
 
+- Added `DNFPlugins=` to allow configuring what DNF plugins are used
+  for builds using DNF.
 - Added `CleanScripts=` to allow running custom cleanup code whenever
   mkosi cleans up the output directory. This allows cleaning up extra
   outputs produced by e.g. a build script that mkosi doesn't know about.

mkosi/config.py

@@ -1506,6 +1506,7 @@ class Config:
     machine: Optional[str]
     forward_journal: Optional[Path]
     vmm: Vmm
+    dnf_plugins: list[str]
 
     # QEMU-specific options
     qemu_gui: bool
@@ -2935,6 +2936,13 @@ def parse_ini(path: Path, only_sections: Collection[str] = ()) -> Iterator[tuple
         parse=config_make_path_parser(required=False),
         help="Set the path used to store forwarded machine journals",
     ),
+    ConfigSetting(
+        dest="dnf_plugins",
+        metavar="BOOL",
+        section="Host",
+        parse=config_make_list_parser(delimiter=" "),
+        help="Specify DNF plugins to enable during the build",
+    ),
     ConfigSetting(
         dest="qemu_gui",
         metavar="BOOL",
@@ -4088,6 +4096,7 @@ def bold(s: Any) -> str:
                     SSH Certificate: {none_to_none(config.ssh_certificate)}
                             Machine: {config.machine_or_name()}
                     Forward Journal: {none_to_none(config.forward_journal)}
+                        DNF Plugins: {line_join_list(config.dnf_plugins)}
 
             Virtual Machine Monitor: {config.vmm}
                            QEMU GUI: {yes_no(config.qemu_gui)}

mkosi/installer/dnf.py

@@ -116,6 +116,12 @@ def cmd(
             "--enable-plugin=builddep" if dnf.endswith("dnf5") else "--enableplugin=builddep",
         ]
 
+        for plugin in context.config.dnf_plugins:
+            if dnf.endswith("dnf5"):
+                cmdline += [f"--enable-plugin={plugin}"]
+            else:
+                cmdline += [f"--enableplugin={plugin}"]
+
         if ARG_DEBUG.get():
             cmdline += ["--setopt=debuglevel=10"]
 

tests/test_json.py

@@ -129,6 +129,7 @@ def test_config() -> None:
                 "dep1"
             ],
             "Distribution": "fedora",
+            "DnfPlugins": [],
             "Environment": {
                 "BAR": "BAR",
                 "Qux": "Qux",
@@ -390,6 +391,7 @@ def test_config() -> None:
         forward_journal=Path("/mkosi.journal"),
         hostname=None,
         vmm=Vmm.qemu,
+        dnf_plugins=[],
         image="default",
         image_id="myimage",
         image_version="5",