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
 
@@ -45,8 +49,7 @@ def _pip_audit(*args):
 
 
 def _fatal_help(msg):
-    msg = f"::error::❌ {msg}"
-    print(sys.stdout.buffer.write(msg.encode("utf-8")))
+    print(f"::error::❌ {msg}")
     sys.exit(1)
 
 
@@ -132,11 +135,9 @@ def _fatal_help(msg):
 _debug(status.stdout)
 
 if status.returncode == 0:
-    msg = "🎉 pip-audit exited successfully"
-    _summary(sys.stdout.buffer.write(msg.encode("utf-8")))
+    _summary("🎉 pip-audit exited successfully")
 else:
-    msg = "❌ pip-audit found one or more problems"
-    _summary(sys.stdout.buffer.write(msg.encode("utf-8")))
+    _summary("❌ pip-audit found one or more problems")
 
     output = "⚠️ pip-audit did not return any output"
     try:

action.yml

@@ -71,11 +71,7 @@ runs:
         # NOTE: Sourced, not executed as a script.
         source "${{ github.action_path }}/setup/venv.bash"
 
-        if [[ "${{runner.os}}" == "Windows" ]]; then
-          python "${{ github.action_path }}/action.py" "${{ inputs.inputs }}"
-        else
-          ${{ github.action_path }}/action.py "${{ inputs.inputs }}"
-        fi
+        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 +17,7 @@ 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
-    if [[ "$OSTYPE" == "msys" || "$(uname)" == MSYS_NT* || "$(uname)" == MINGW* ]]; then
+    if [[ "$(uname)" == MSYS_NT* || "$(uname)" == MINGW* ]]; then
       # execute in windows
       source "${GHA_PIP_AUDIT_VIRTUAL_ENVIRONMENT}/scripts/activate"
     else