try fix windows builds

.github/workflows/python-package.yml

@@ -15,6 +15,11 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         python-version: [3.7, 3.8, 3.9]
+        exclude:
+          - os: macos-latest
+            python-version: 3.8
+          - os: macos-latest
+            python-version: 3.9
 
     steps:
     - uses: actions/checkout@v2
@@ -22,6 +27,10 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Install Clang (on Windows)
+      if: runner.os == 'Windows'
+      run: |
+        choco install llvm
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
@@ -35,7 +44,13 @@ jobs:
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
     - name: Test with nose
       run: |
-        nosetests tests/unit --with-coverage --cover-branches
+        nosetests tests/unit --verbose
     - name: Test with lit
+      if: runner.os != 'Windows'
       run: |
         lit -v tests
+    - name: Test with lit (on Windows)
+      if: runner.os == 'Windows'
+      run: |
+        pip install . --use-feature=in-tree-build
+        lit -DUSE_INSTALLED=true -v tests

tests/functional/lit.local.cfg

@@ -17,9 +17,6 @@ config.environment['test_input_dir'] = os.path.join(this_dir, 'Input')
 config.environment['CC'] = 'clang'
 config.environment['CXX'] = 'clang++'
 
-# this hack is needed to run the right compiler on travis-ci
-clang=os.environ.get('TRAVIS_CLANG', 'clang')
-
 ab = 'analyze-build'
 sb = 'scan-build'
 ib = 'intercept-build'
@@ -33,28 +30,28 @@ if lit_config.params.get('USE_INSTALLED') is None:
     config.environment['PATH'] = os.pathsep.join([bin_dir, os.environ['PATH']])
     config.environment['PYTHONPATH'] = project_dir
 
-    # run with coverage if the tool is available
-    if 'coverage' in config.available_features:
-        rc_file=os.path.join(project_dir, '.coveragerc')
-        config.environment['COVERAGE_PROCESS_START'] = rc_file
+# run with coverage if the tool is available
+if 'coverage' in config.available_features:
+    rc_file=os.path.join(project_dir, '.coveragerc')
+    config.environment['COVERAGE_PROCESS_START'] = rc_file
 
-        coverage = 'coverage run --rcfile={rc}'.format(rc=rc_file)
-        ab = '{coverage} {path}'.format(
-            coverage=coverage,
-            path=os.path.join(bin_dir, 'analyze-build'))
-        sb = '{coverage} {path}'.format(
-            coverage=coverage,
-            path=os.path.join(bin_dir, 'scan-build'))
-        ib = '{coverage} {path}'.format(
-            coverage=coverage,
-            path=os.path.join(bin_dir, 'intercept-build'))
+    coverage = 'coverage run --rcfile={rc}'.format(rc=rc_file)
+    ab = '{coverage} {path}'.format(
+        coverage=coverage,
+        path=os.path.join(bin_dir, 'analyze-build'))
+    sb = '{coverage} {path}'.format(
+        coverage=coverage,
+        path=os.path.join(bin_dir, 'scan-build'))
+    ib = '{coverage} {path}'.format(
+        coverage=coverage,
+        path=os.path.join(bin_dir, 'intercept-build'))
 
 config.substitutions.append(
     ('%{analyze-build}',
-     '{cmd} --use-analyzer={clang} -vvvv'.format(cmd=ab, clang=clang)))
+     '{cmd} -vvvv'.format(cmd=ab)))
 config.substitutions.append(
     ('%{scan-build}',
-     '{cmd} --use-analyzer={clang} -vvvv'.format(cmd=sb, clang=clang)))
+     '{cmd} -vvvv'.format(cmd=sb)))
 config.substitutions.append(
     ('%{intercept-build}',
      '{cmd} -vvvv'.format(cmd=ib)))
@@ -64,3 +61,9 @@ config.substitutions.append(
 config.substitutions.append(
     ('%{expect}',
     '{python} {expect}'.format(python=sys.executable, expect=os.path.join(tool_dir, 'expect.py'))))
+
+
+print("lit.local.cfg config")
+print(config.substitutions)
+print(config.environment)
+print(config.available_features)

tests/lit.cfg

@@ -75,4 +75,10 @@ else:
 sys.path.append(project_dir)
 from libscanbuild.intercept import is_preload_disabled
 if not is_preload_disabled(sys.platform):
-    config.available_features.add('preload')
+    config.available_features.add('preload')
+
+
+print("lit.cfg config")
+print(config.substitutions)
+print(config.environment)
+print(config.available_features)

tests/unit/lit.local.cfg

@@ -1,16 +0,0 @@
-# -*- coding: utf-8 -*-
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open Source
-# License. See LICENSE.TXT for details.
-
-import os.path
-import lit.util
-
-# test_source_root: The root path where tests are located.
-this_dir = os.path.dirname(__file__)
-parent_dir = os.path.dirname(this_dir)
-project_dir = os.path.dirname(parent_dir)
-
-
-config.environment['PYTHONPATH'] = project_dir

tests/unit/run_unit_test.ft

@@ -1 +0,0 @@
-# RUN: %{python} -m unittest discover -v