add --suppress= command line option

cli/cmdlineparser.cpp

@@ -197,6 +197,18 @@ bool CmdLineParser::ParseFromArgs(int argc, const char* const argv[])
             }
         }
 
+        else if (strncmp(argv[i], "--suppress=", 11) == 0)
+        {
+            std::string suppression = argv[i];
+            suppression = suppression.substr(11);
+            const std::string errmsg(_settings->nomsg.addSuppressionLine(suppression));
+            if (!errmsg.empty())
+            {
+                PrintMessage(errmsg);
+                return false;
+            }
+        }
+
         // Enables inline suppressions.
         else if (strcmp(argv[i], "--inline-suppr") == 0)
             _settings->_inlineSuppressions = true;

test/testcmdlineparser.cpp

@@ -77,6 +77,8 @@ private:
         TEST_CASE(suppressionsOld); // TODO: Create and test real suppression file
         TEST_CASE(suppressions)
         TEST_CASE(suppressionsNoFile)
+        TEST_CASE(suppressionSingle)
+        TEST_CASE(suppressionSingleFile)
         TEST_CASE(templates);
         TEST_CASE(templatesGcc);
         TEST_CASE(templatesVs);
@@ -554,6 +556,26 @@ private:
         ASSERT(!parser.ParseFromArgs(3, argv));
     }
 
+    void suppressionSingle()
+    {
+        REDIRECT;
+        const char *argv[] = {"cppcheck", "--suppress=uninitvar", "file.cpp"};
+        Settings settings;
+        CmdLineParser parser(&settings);
+        ASSERT(parser.ParseFromArgs(3, argv));
+        ASSERT_EQUALS(true, settings.nomsg.isSuppressed("uninitvar", "file.cpp", 1U));
+    }
+
+    void suppressionSingleFile()
+    {
+        REDIRECT;
+        const char *argv[] = {"cppcheck", "--suppress=uninitvar:file.cpp", "file.cpp"};
+        Settings settings;
+        CmdLineParser parser(&settings);
+        ASSERT(parser.ParseFromArgs(3, argv));
+        ASSERT_EQUALS(true, settings.nomsg.isSuppressed("uninitvar", "file.cpp", 1U));
+    }
+
     void templates()
     {
         REDIRECT;