Allow installing RPM packages via DNF

.github/workflows/this-repo.yml

@@ -15,9 +15,11 @@ jobs:
       uses: ./
       with:
         tox_env: ${{ matrix.tox_env }}
+        dnf_install: ${{ matrix.dnf_install }}
     strategy:
       matrix:
         tox_env: [py39]
+        dnf_install: ["", "libffi-devel", "--enablerepo=updates-testing libffi-devel libyaml-devel"]
 
     # Use GitHub's Linux Docker host
     runs-on: ubuntu-latest

README.md

@@ -27,6 +27,16 @@ from your Tox configuration.
 (As far as we know, this is required in order to have individual environments
 show up as separate runs on GitHub. Discuss this limitation in [issue 8].)
 
+Optionally, you can install RPM packages from Fedora by setting the
+`dnf_install` to a space separated list of packages (or provides, groups etc.,
+the string will be literally used in `dnf install ...`):
+
+```yaml
+- uses: fedora-python/tox-github-action
+  with:
+    tox_env: py38
+    dnf_install: libffi-devel libyaml-devel
+```
 
 [issue 8]: https://github.com/fedora-python/tox-github-action/issues/8
 

action.yaml

@@ -5,12 +5,16 @@ inputs:
     required: true
     default: 'py38'
     description: Tox environment to run the tests on
+  dnf_install:
+    required: false
+    default: ''
+    description: Space separated packages to install via dnf install (can contain options)
 runs:
   using: docker
   image: docker://fedorapython/fedora-python-tox
-  entrypoint: tox
-  args:
-    - '-e${{ inputs.tox_env }}'
+  env:
+    TOXENV: ${{ inputs.tox_env }}
+    DNF_INSTALL: ${{ inputs.dnf_install }}
 branding:
   color: green
   icon: check