Support running inside windows self-hosted runner (#43)

* Add couple lines in action.py, action.yml and venv.bash to support running inside windows self-hosted runner

* Fixed new lines based on William Woodruff feedback

action.py

@@ -12,11 +12,15 @@
 from base64 import b64encode
 from pathlib import Path
 
+sys.stdout.reconfigure(encoding="utf-8")
+
 _HERE = Path(__file__).parent.resolve()
 _TEMPLATES = _HERE / "templates"
 
-_GITHUB_STEP_SUMMARY = Path(os.getenv("GITHUB_STEP_SUMMARY")).open("a")
-_GITHUB_OUTPUT = Path(os.getenv("GITHUB_OUTPUT")).open("a")
+_GITHUB_STEP_SUMMARY = Path(os.getenv("GITHUB_STEP_SUMMARY")).open(
+    "a", encoding="utf-8"
+)
+_GITHUB_OUTPUT = Path(os.getenv("GITHUB_OUTPUT")).open("a", encoding="utf-8")
 _RENDER_SUMMARY = os.getenv("GHA_PIP_AUDIT_SUMMARY", "true") == "true"
 _DEBUG = os.getenv("RUNNER_DEBUG") is not None
 

action.yml

@@ -71,7 +71,7 @@ runs:
         # NOTE: Sourced, not executed as a script.
         source "${{ github.action_path }}/setup/venv.bash"
 
-        ${{ github.action_path }}/action.py "${{ inputs.inputs }}"
+        python "${{ github.action_path }}/action.py" "${{ inputs.inputs }}"
       env:
         GHA_PIP_AUDIT_SUMMARY: "${{ inputs.summary }}"
         GHA_PIP_AUDIT_NO_DEPS: "${{ inputs.no-deps }}"

setup/venv.bash

@@ -17,7 +17,12 @@ fi
 # `python -m pip install ...` invocation might happen to choose.
 if [[ -n "${GHA_PIP_AUDIT_VIRTUAL_ENVIRONMENT}" ]] ; then
   if [[ -d "${GHA_PIP_AUDIT_VIRTUAL_ENVIRONMENT}" ]]; then
-    source "${GHA_PIP_AUDIT_VIRTUAL_ENVIRONMENT}/bin/activate"
+    if [[ "$(uname)" == MSYS_NT* || "$(uname)" == MINGW* ]]; then
+      # execute in windows
+      source "${GHA_PIP_AUDIT_VIRTUAL_ENVIRONMENT}/scripts/activate"
+    else
+      source "${GHA_PIP_AUDIT_VIRTUAL_ENVIRONMENT}/bin/activate"
+    fi
   else
     die "Fatal: virtual environment is not a directory"
   fi