Implement WORKDIR from the container image here

Fixes: #16

Co-authored-by: Miro Hrončok <miro@hroncok.cz>

Author: frenzymadness

.github/workflows/this-repo.yml

@@ -20,6 +20,7 @@ jobs:
       matrix:
         tox_env: [py39]
         dnf_install: ["", "libffi-devel", "--enablerepo=updates-testing libffi-devel libyaml-devel"]
+        workdir: ["", "./test/", "test"]
 
     # Use GitHub's Linux Docker host
     runs-on: ubuntu-latest

README.md

@@ -46,12 +46,26 @@ groups or DNF options.
 
 [issue 8]: https://github.com/fedora-python/tox-github-action/issues/8
 
+If your application isn't in the root of your project, set `workdir`. The action
+will switch to the specified path before tox execution.
+
+```yaml
+- uses: fedora-python/tox-github-action
+  with:
+    tox_env: py38
+    workdir: "python/"
+```
+
 ## Changelog
 
 Until version 0.4, this action always used the latest [fedora-python-tox](https://hub.docker.com/repository/docker/fedorapython/fedora-python-tox)
 image. Since version 34.0, the first number in the version (also sometimes
 referred to as the "major version") represents the release of Fedora used in the image.
 
+### v35.1
+
+* Allows to run tests from a subdirectory via `workdir`.
+
 ### v35.0
 
 * Uses Fedora 35 as the base container image.

action.yaml

@@ -9,12 +9,18 @@ inputs:
     required: false
     default: ''
     description: Space separated packages to install via dnf install (can contain options)
+  workdir:
+    required: false
+    default: ''
+    description: Path to switch to before running tox.
+
 runs:
   using: docker
   image: docker://fedorapython/fedora-python-tox:f35
   env:
     TOXENV: ${{ inputs.tox_env }}
     DNF_INSTALL: ${{ inputs.dnf_install }}
+    WORKDIR: ${{ inputs.workdir }}
 branding:
   color: green
   icon: check