allow safety from config to be overwritten

Author: firewave

cli/cmdlineparser.cpp

@@ -1016,6 +1016,9 @@ CmdLineParser::Result CmdLineParser::parseFromArgs(int argc, const char* const a
             mSettings.cppHeaderProbe = false;
         }
 
+        else if (std::strcmp(argv[i], "--no-safety") == 0)
+            mSettings.safety = false;
+
         // Write results in file
         else if (std::strncmp(argv[i], "--output-file=", 14) == 0)
             mSettings.outputFile = Path::simplifyPath(argv[i] + 14);
@@ -1116,7 +1119,7 @@ CmdLineParser::Result CmdLineParser::parseFromArgs(int argc, const char* const a
                 "misra-c++-2023",
                 "misra-cpp-2023",
                 "bughunting",
-                "safety",
+                "safety",  // TODO: deprecate in favor of the regular --saftey/--no-safety
                 "debug-progress"};
             // valid options --premium-..=
             const std::set<std::string> valid2{

lib/settings.cpp

@@ -162,7 +162,7 @@ std::string Settings::loadCppcheckCfg(Settings& settings, Suppressions& suppress
             const auto& v = it->second;
             if (!v.is<bool>())
                 return "'safety' is not a bool";
-            settings.safety = settings.safety || v.get<bool>();
+            settings.safety = v.get<bool>();
         }
     }
 

test/cli/other_test.py

@@ -1743,6 +1743,27 @@ def test_config_invalid(tmpdir):
     ]
 
 
+def test_config_override(tmpdir):
+    # cppcheck.cfg needs to be next to executable
+    exe = shutil.copy2(__lookup_cppcheck_exe(), tmpdir)
+    shutil.copytree(os.path.join(os.path.dirname(__lookup_cppcheck_exe()), 'cfg'), os.path.join(tmpdir, 'cfg'))
+
+    test_file = os.path.join(tmpdir, 'test.c')
+    with open(test_file, 'wt'):
+        pass
+
+    config_file = os.path.join(tmpdir, 'cppcheck.cfg')
+    with open(config_file, 'wt') as f:
+        f.write(json.dumps({
+            'safety': False
+        }))
+
+    exitcode, stdout, stderr, exe = cppcheck_ex(['-q', '--safety', test_file], cwd=tmpdir, cppcheck_exe=exe, remove_checkers_report=False)
+    assert exitcode == 0, stdout if stdout else stderr
+    assert stdout.splitlines() == []
+    assert 'checkersReport' in stderr
+
+
 def test_checkers_report(tmpdir):
     test_file = os.path.join(tmpdir, 'test.c')
     with open(test_file, 'wt') as f:

test/testcmdlineparser.cpp

@@ -489,6 +489,10 @@ class TestCmdlineParser : public TestFixture {
         TEST_CASE(debugNormalVerbose);
         TEST_CASE(debug);
         TEST_CASE(debugVerbose);
+        TEST_CASE(safety);
+        TEST_CASE(safetyOverride);
+        TEST_CASE(noSafety);
+        TEST_CASE(noSafetyOverride);
 
         TEST_CASE(ignorepaths1);
         TEST_CASE(ignorepaths2);
@@ -3389,6 +3393,34 @@ class TestCmdlineParser : public TestFixture {
         ASSERT_EQUALS(true, settings->debugsymdb);
     }
 
+    void safety() {
+        REDIRECT;
+        const char * const argv[] = {"cppcheck", "--safety", "file.cpp"};
+        ASSERT_EQUALS_ENUM(CmdLineParser::Result::Success, parseFromArgs(argv));
+        ASSERT_EQUALS(true, settings->safety);
+    }
+
+    void safetyOverride() {
+        REDIRECT;
+        const char * const argv[] = {"cppcheck", "--no-safety", "--safety", "file.cpp"};
+        ASSERT_EQUALS_ENUM(CmdLineParser::Result::Success, parseFromArgs(argv));
+        ASSERT_EQUALS(true, settings->safety);
+    }
+
+    void noSafety() {
+        REDIRECT;
+        const char * const argv[] = {"cppcheck", "--no-safety", "file.cpp"};
+        ASSERT_EQUALS_ENUM(CmdLineParser::Result::Success, parseFromArgs(argv));
+        ASSERT_EQUALS(false, settings->safety);
+    }
+
+    void noSafetyOverride() {
+        REDIRECT;
+        const char * const argv[] = {"cppcheck", "--safety", "--no-safety", "file.cpp"};
+        ASSERT_EQUALS_ENUM(CmdLineParser::Result::Success, parseFromArgs(argv));
+        ASSERT_EQUALS(false, settings->safety);
+    }
+
     void ignorepaths1() {
         REDIRECT;
         const char * const argv[] = {"cppcheck", "-isrc", "file.cpp"};

test/testsettings.cpp

@@ -250,7 +250,7 @@ class TestSettings : public TestFixture {
             Suppressions supprs;
             ScopedFile file("cppcheck.cfg", "{\"safety\": false}");
             ASSERT_EQUALS("", Settings::loadCppcheckCfg(s, supprs));
-            ASSERT_EQUALS(true, s.safety);
+            ASSERT_EQUALS(false, s.safety);
         }
 
         {