stestrCheckHook: init

This adds a useful hook to be used for projects that use stestr,
it is primiative at the moment but covers most scenarios for using
it.

This PR also changes a Python module to start using it, once it
lands, follow up PRs can update all of them to use it tree-wide.

Signed-off-by: Vinetos <contact+git@vinetos.fr>

pkgs/development/interpreters/python/hooks/default.nix

@@ -442,6 +442,17 @@ in
     } ./setuptools-build-hook.sh
   ) { };
 
+  stestrCheckHook = callPackage (
+    { makePythonHook }:
+    makePythonHook {
+      name = "stestr-check-hook";
+      propagatedBuildInputs = [ stestr ];
+      substitutions = {
+        inherit pythonCheckInterpreter;
+      };
+    } ./stestr-check-hook.sh
+  ) { };
+
   unittestCheckHook = callPackage (
     { makePythonHook }:
     makePythonHook {

pkgs/development/interpreters/python/hooks/stestr-check-hook.sh

@@ -0,0 +1,39 @@
+# Setup hook for stestr
+# shellcheck shell=bash
+
+echo "Sourcing stestr-check-hook"
+
+function stestrCheckPhase() {
+    echo "Executing stestrCheckPhase"
+    runHook preCheck
+
+    local -a patterns=()
+
+    # Append regex pattern
+    read -ra patterns <<< "$disabledTestsRegex"
+
+    # Sanitize disabledTests options
+    if [[ -n "${disabledTests[*]-}" ]] || [[ -n "${disabledTestsRegex[*]-}" ]]; then
+        # Prevent unintentional matching for specific tests
+        for test in ${disabledTests[@]-}; do
+            patterns+=("^${test}$")
+        done
+    fi
+
+    # Compose arguments
+    local -a flagsArray=()
+    if [[ -n "${patterns[*]}" ]]; then
+        flagsArray+=(--exclude-regex "($(concatStringsSep "|" patterns))")
+    fi
+
+    echoCmd 'stestr flags' "${flagsArray[@]}"
+    @pythonCheckInterpreter@ -m stestr run "${flagsArray[@]}"
+
+    runHook postCheck
+    echo "Finished executing stestrCheckPhase"
+}
+
+if [ -z "${dontUseStestrCheck-}" ] && [ -z "${installCheckPhase-}" ]; then
+    echo "Using stestrCheckPhase"
+    appendToVar preDistPhases stestrCheckPhase
+fi