CI: Fix Astsee (verilator/verilator#6399) (#7)

Author: ArturBieniek4

.github/workflows/build-test.yml

@@ -76,9 +76,10 @@ jobs:
           CI_BUILD_STAGE_NAME: test
         run: |
           ( cd submodules/verilator && bash ci/ci-install.bash )
-          pipx install submodules/astsee
+          pipx install --system-site-packages submodules/astsee
 
       - name: Test
         run: |
           export VERILATOR_ROOT=$GITHUB_WORKSPACE/submodules/verilator
+          source /opt/pipx/venvs/astsee/bin/activate
           make test

.gitignore

@@ -1,3 +1,4 @@
 obj_*
 *.swp
 .gdb_history
+t/__pycache__

submodules/verilator

@@ -8,6 +8,7 @@
 # SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
 
 import vltest_bootstrap
+import sysconfig
 
 test.scenarios('vlt')
 test.top_filename = "t/t_dump.v"
@@ -20,6 +21,11 @@
 if 'NotFoundError:' in out:
     test.skip("No astsee package file installed")
 
+purelib = sysconfig.get_paths().get("purelib", "")
+platlib = sysconfig.get_paths().get("platlib", "")
+pythonpaths = [p for p in (purelib, platlib, test.getenv_def("PYTHONPATH")) if p]
+test.setenv("PYTHONPATH", os.pathsep.join(pythonpaths))
+
 test.setenv(
     "VERILATOR_GDB", "gdb --return-child-result" +
     (" --batch-silent --quiet" if test.verbose else " --batch") +