actions: Add pisp HW verification test

Signed-off-by: Naushir Patuck <[email protected]>

.github/workflows/pisp-verification.test.yaml

@@ -0,0 +1,41 @@
+name: pisp verification tests
+
+on:
+  workflow_dispatch:
+
+  pull_request:
+    branches: [ main ]
+
+env:
+  BE_TEST_DIR: "${{github.workspace}}/../be_test"
+  LKG_DIR: "${{github.workspace}}/../lkg"
+  TESTS_DIR: "/home/pi/pisp_tests"
+
+jobs:
+  build-test:
+
+    runs-on: [ self-hosted, pi5 ]
+
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        fetch-depth: 1
+        clean: true
+
+    - name: Configure meson
+      run: meson setup build -Dbuildtype=debug
+      timeout-minutes: 5
+
+    - name: Build
+      run: ninja -C build
+      timeout-minutes: 10
+
+  run-test:
+
+    runs-on: [ self-hosted, pi5 ]
+    needs: build-test
+
+    steps:
+    - name: Run verification tests
+      run: LD_LIBRARY_PATH=${{github.workspace}}/build/src LIBPISP_BE_CONFIG_FILE="${{github.workspace}}/src/libpisp/backend/backend_default_config.json" ${{env.BE_TEST_DIR}}/run_be_tests.py --hw --logall --test ${{env.BE_TEST_DIR}}/be_test ${{env.TESTS_DIR}} 
+      timeout-minutes: 20

src/libpisp/backend/backend.cpp

@@ -7,6 +7,7 @@
  */
 #include "backend.hpp"
 
+#include <cstdlib>
 #include <cstring>
 
 #include "common/logging.hpp"
@@ -89,7 +90,8 @@ BackEnd::BackEnd(Config const &config, PiSPVariant const &variant)
 	smart_resize_.resize(2, { 0, 0 });
 	smart_resize_dirty_ = 0;
 
-	initialiseDefaultConfig(config.defaults_file);
+	const char *env = std::getenv("LIBPISP_BE_CONFIG_FILE");
+	initialiseDefaultConfig(env ? std::string(env) : config.defaults_file);
 }
 
 BackEnd::~BackEnd()