add additional checks to ghidrathon_configure.py

Author: mike-hunhoff

Diff for: .github/workflows/tests.yml

@@ -70,7 +70,7 @@ jobs:
         Rename-Item -Path "./dist/$((Get-ChildItem -Path "./dist").Name)" -NewName "Ghidrathon.zip"
         tar -xf ./dist/Ghidrathon.zip -C ../tmp/ghidra/ghidra_PUBLIC/Ghidra/Extensions/
     - name: Set Ghidrathon Python interpreter
-      run: python util/ghidrathon_configure.py ../tmp/ghidra/ghidra_PUBLIC
+      run: python util/ghidrathon_configure.py ../tmp/ghidra/ghidra_PUBLIC -d
     - name: Run tests
       run: |
         ../tmp/ghidra/ghidra_PUBLIC/support/analyzeHeadless ${{ github.workspace }}/../tmp/ghidra test -Import ${{ github.workspace }}/../tmp/ghidra/ghidra_PUBLIC/GPL/DemanglerGnu/os/linux_x86_64/demangler_gnu_v2_24 -PostScript ${{ github.workspace }}/data/python/tests/hello.py -PostScript ${{ github.workspace }}/data/python/tests/runall.py

Diff for: util/ghidrathon_configure.py

@@ -6,12 +6,15 @@
 #  is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and limitations under the License.
 
+import importlib
 import argparse
 import pathlib
 import logging
 import sys
 
 
+SUPPORTED_JEP_VERSION = "4.2.0"
+
 logger = logging.getLogger(__name__)
 
 handler = logging.StreamHandler()
@@ -28,20 +31,60 @@ def main(args):
     if args.debug:
         logger.setLevel(logging.DEBUG)
 
+    jep_spec = importlib.util.find_spec("jep")
+    if jep_spec is None:
+        logger.error(
+            "Jep is not installed. Please install Jep version %s before configuring Ghidrathon.", SUPPORTED_JEP_VERSION
+        )
+        return -1
+
+    jep_version_file: pathlib.path = pathlib.Path(jep_spec.origin).parent / "version.py"
+    if not all((jep_version_file.exists(), jep_version_file.is_file())):
+        logger.error(
+            "Jep file %s is not valid. Please verify your Jep install is correct before configuring Ghidrathon.",
+            jep_version_file,
+        )
+        return -1
+
+    logger.debug('Verifying Jep version.py file located at "%s".', jep_version_file)
+
+    if SUPPORTED_JEP_VERSION not in jep_version_file.read_text(encoding="utf-8"):
+        logger.error(
+            "Jep version is not supported. Please install Jep version %s before configuring Ghidrathon.",
+            SUPPORTED_JEP_VERSION,
+        )
+        return -1
+
     install_path: pathlib.Path = args.ghidrathon_install_directory
     if not all((install_path.exists(), install_path.is_dir())):
-        logger.error('"%s" does not exist or is not a directory.', str(install_path))
+        logger.error(
+            'Ghidra install directory "%s" is not valid. Please specify the absolute path of your Ghidra install directory.',
+            install_path,
+        )
+        return -1
+
+    python_path: pathlib.Path = pathlib.Path("None" if not sys.executable else sys.executable)
+    if not all((python_path.exists(), python_path.is_file())):
+        logger.error(
+            'sys.executable value "%s" is not valid. Please verify your Python environment is correct before configuring Ghidrathon.',
+            python_path,
+        )
         return -1
 
+    logger.debug('Using Python interpreter located at "%s".', python_path)
+
     save_path: pathlib.Path = install_path / "ghidrathon.save"
     try:
-        save_path.write_text(sys.executable, encoding="utf-8")
+        save_path.write_text(str(python_path), encoding="utf-8")
     except Exception as e:
-        logger.error('Failed to write "%s" to "%s" (%s).', sys.executable, str(save_path), e)
+        logger.error('Failed to write "%s" to "%s" (%s).', python_path, save_path, e)
         return -1
 
-    logger.debug('Wrote "%s" to "%s".', sys.executable, str(save_path))
-    logger.info("Please restart Ghidra for these changes to take effect.")
+    logger.debug('Wrote "%s" to "%s".', python_path, save_path)
+    logger.info(
+        'Ghidrathon has been configured to use the Python interpreter located at "%s". Please restart Ghidra for these changes to take effect.',
+        python_path,
+    )
 
     return 0