Add support for Clang-Tidy plugins

analyzer/codechecker_analyzer/analyzers/clangtidy/analyzer.py

@@ -266,6 +266,42 @@ def analyzer_binary(cls):
         return analyzer_context.get_context() \
             .analyzer_binaries[cls.ANALYZER_NAME]
 
+    @classmethod
+    def analyzer_base_cmd(cls) -> List[str]:
+        return [cls.analyzer_binary()] + \
+            ["-load=" + f for f in cls.analyzer_plugins()]
+
+    @classmethod
+    def analyzer_plugins(cls) -> List[str]:
+        """
+        Return the list of .so file paths which contain checker plugins to
+        Clang-Tidy.
+        """
+        if env.is_analyzer_from_path():
+            clangtidy_plugin_dir = env.get_clangtidy_plugin_dir()
+            if not clangtidy_plugin_dir:
+                return []
+
+            # If the CC_ANALYZERS_FROM_PATH and CC_CLANGTIDY_PLUGIN_DIR
+            # environment variables are set we will use this value as the
+            # plugin directory.
+            plugin_dir = clangtidy_plugin_dir
+
+        else:
+            base_plugin_dir = analyzer_context.get_context().checker_plugin
+            if not base_plugin_dir:
+                return []
+
+            plugin_dir = os.path.join(base_plugin_dir, "clangtidy")
+
+        if not os.path.isdir(plugin_dir):
+            return []
+
+        return [os.path.join(plugin_dir, f)
+                for f in os.listdir(plugin_dir)
+                if os.path.isfile(os.path.join(plugin_dir, f))
+                and f.endswith(".so")]
+
     @classmethod
     def get_binary_version(cls) -> Optional[Version]:
         if not cls.analyzer_binary():
@@ -311,7 +347,7 @@ def get_analyzer_checkers(cls):
 
             environ = context.get_env_for_bin(cls.analyzer_binary())
             result = subprocess.check_output(
-                [cls.analyzer_binary(), "-list-checks", "-checks=*"],
+                cls.analyzer_base_cmd() + ["-list-checks", "-checks=*"],
                 env=environ,
                 universal_newlines=True,
                 encoding="utf-8",
@@ -340,7 +376,7 @@ def get_checker_config(cls) -> List[analyzer_base.CheckerConfig]:
         """
         try:
             help_page = subprocess.check_output(
-                [cls.analyzer_binary(), "-dump-config", "-checks=*"],
+                cls.analyzer_base_cmd() + ["-dump-config", "-checks=*"],
                 env=analyzer_context.get_context()
                 .get_env_for_bin(cls.analyzer_binary()),
                 universal_newlines=True,
@@ -365,7 +401,7 @@ def get_analyzer_config(cls) -> List[analyzer_base.AnalyzerConfig]:
 
         try:
             result = subprocess.check_output(
-                [cls.analyzer_binary(), "-dump-config", "-checks=*"],
+                cls.analyzer_base_cmd() + ["-dump-config", "-checks=*"],
                 env=analyzer_context.get_context()
                 .get_env_for_bin(cls.analyzer_binary()),
                 universal_newlines=True,
@@ -494,7 +530,7 @@ def construct_analyzer_cmd(self, result_handler):
         try:
             config = self.config_handler
 
-            analyzer_cmd = [ClangTidy.analyzer_binary()]
+            analyzer_cmd = ClangTidy.analyzer_base_cmd()
 
             checks, compiler_warnings = self.get_checker_list(config)
 

analyzer/codechecker_analyzer/cli/analyze.py

@@ -53,6 +53,9 @@
                            is set you can configure the plugin directory of the
                            Clang Static Analyzer by using this environment
                            variable.
+  CC_CLANGTIDY_PLUGIN_DIR  If the CC_ANALYZERS_FROM_PATH environment variable
+                           is set you can configure the plugin directory of
+                           Clang-Tidy by using this environment variable.
 """
 
 EPILOG_ISSUE_HASHES = """

analyzer/codechecker_analyzer/env.py

@@ -212,3 +212,8 @@ def is_analyzer_from_path():
 def get_clangsa_plugin_dir():
     """ Return the value of the CC_CLANGSA_PLUGIN_DIR environment variable. """
     return os.environ.get('CC_CLANGSA_PLUGIN_DIR')
+
+
+def get_clangtidy_plugin_dir():
+    """ Return the value of the CC_CLANGTIDY_PLUGIN_DIR environment variable. """
+    return os.environ.get('CC_CLANGTIDY_PLUGIN_DIR')

docs/analyzer/user_guide.md

@@ -571,6 +571,9 @@ Environment variables for 'CodeChecker analyze' command:
                            is set you can configure the plugin directory of the
                            Clang Static Analyzer by using this environment
                            variable.
+  CC_CLANGTIDY_PLUGIN_DIR  If the CC_ANALYZERS_FROM_PATH environment variable
+                           is set you can configure the plugin directory of
+                           Clang-Tidy by using this environment variable.
 
 Environment variables for 'CodeChecker parse' command:
 
@@ -1150,6 +1153,9 @@ Environment variables
                            is set you can configure the plugin directory of the
                            Clang Static Analyzer by using this environment
                            variable.
+  CC_CLANGTIDY_PLUGIN_DIR  If the CC_ANALYZERS_FROM_PATH environment variable
+                           is set you can configure the plugin directory of
+                           Clang-Tidy by using this environment variable.
 ```
 </details>
 
@@ -2570,7 +2576,8 @@ You can set the `CC_ANALYZERS_FROM_PATH` environment variable before running a
 CodeChecker command to `yes` or `1` to enforce taking the analyzers from the
 `PATH` instead of the given binaries. If this option is set you can also
 configure the plugin directory of the Clang Static Analyzer by using the
-`CC_CLANGSA_PLUGIN_DIR` environment variable.
+`CC_CLANGSA_PLUGIN_DIR` environment variable and of Clang-Tidy by using the
+`CC_CLANGTIDY_PLUGIN_DIR` environment variable.
 
 Make sure that the required include paths are at the right place!
 Clang based tools search by default for

docs/package_layout.md

@@ -28,7 +28,8 @@ You can set the `CC_ANALYZERS_FROM_PATH` environment variable before running a
 CodeChecker command to `yes` or `1` to enforce taking the analyzers from the
 `PATH` instead of the given binaries. If this option is set you can also
 configure the plugin directory of the Clang Static Analyzer by using the
-`CC_CLANGSA_PLUGIN_DIR` environment variable.
+`CC_CLANGSA_PLUGIN_DIR` environment variable and of Clang-Tidy by using the
+`CC_CLANGTIDY_PLUGIN_DIR` environment variable.
 
 ### Replacer section
 This section is a key-value component. The key is `clang-apply-replacements`