feat: use cve-bin-tool without Reportlab (Fixes #1464) (#1485)

* fixes #1464

cve_bin_tool/cli.py

@@ -13,6 +13,7 @@
 """
 
 import argparse
+import importlib.util
 import logging
 import os
 import platform
@@ -348,6 +349,15 @@ def main(argv=None):
     if int(args["cvss"]) > 0:
         score = int(args["cvss"])
 
+    # Check for PDF support
+    output_format = args["format"]
+    if output_format == "pdf" and importlib.util.find_spec("reportlab") is None:
+        LOGGER.info("PDF output not available. Default to console.")
+        LOGGER.info(
+            "If you want to produce PDF output, please install reportlab using pip install reportlab"
+        )
+        output_format = "console"
+
     merged_reports = None
     if args["merge"]:
         LOGGER.info(
@@ -545,7 +555,7 @@ def main(argv=None):
             )
 
             if not args["quiet"]:
-                output.output_file(args["format"])
+                output.output_file(output_format)
                 if args["backport_fix"] or args["available_fix"]:
                     distro_info = args["backport_fix"] or args["available_fix"]
                     is_backport = True if args["backport_fix"] else False

test/test_output_engine.py

@@ -5,6 +5,7 @@
 CVE-bin-tool OutputEngine tests
 """
 import csv
+import importlib.util
 import json
 import logging
 import os
@@ -470,6 +471,11 @@ def test_output_csv(self):
         expected_value = [dict(x) for x in reader]
         self.assertEqual(expected_value, self.FORMATTED_OUTPUT)
 
+    @unittest.skipUnless(
+        importlib.util.find_spec("reportlab") is not None
+        and importlib.util.find_spec("pdftotext") is not None,
+        "Skipping PDF tests. Please install reportlab and pdftotext to run these tests.",
+    )
     def test_output_pdf(self):
         """Test formatting output as PDF"""
         output_pdf(self.MOCK_PDF_OUTPUT, False, 1, "cve_test.pdf", False)