[cmake_frontend.py] add get_library_targets; add some documentation

Author: diivm

clang_bind/cmake_frontend.py

@@ -4,7 +4,11 @@
 
 
 class CompilationDatabase:
-    """Class to get information from a CMake compilation database."""
+    """Class to get information from a CMake compilation database.
+
+    :param build_dir: Build directory path, where compile_commands.json is present.
+    :type build_dir: str
+    """
 
     def __init__(self, build_dir):
         self.compilation_database = clang.CompilationDatabase.fromDirectory(
@@ -36,7 +40,11 @@ def get_compilation_arguments(self, filename=None):
 
 
 class Target:
-    """Class to get information about targets found from the CMake file API."""
+    """Class to get information about targets found from the CMake file API.
+
+    :param target_file: Target file path.
+    :type target_file: str
+    """
 
     def __init__(self, target_file):
         with open(target_file) as f:
@@ -196,7 +204,11 @@ def get_type(self):
 
 
 class CMakeFileAPI:
-    """CMake File API front end."""
+    """CMake File API front end.
+
+    :param build_dir: Build directory path, where .cmake directory is present.
+    :type build_dir: str
+    """
 
     def __init__(self, build_dir):
         self.reply_dir = Path(build_dir, ".cmake", "api", "v1", "reply")
@@ -220,6 +232,17 @@ def _set_targets_from_codemodel(self):
                 target_obj = Target(Path(self.reply_dir, target_file))
                 self.targets[target_obj.get_name()] = target_obj
 
+    def get_library_targets(self):
+        """Get all library targets' names.
+
+        :return: Library targets.
+        :rtype: list
+        """
+        library_targets_objs = filter(
+            lambda target: target.get_type() == "SHARED_LIBRARY", self.targets.values()
+        )
+        return list(map(lambda target: target.get_name(), library_targets_objs))
+
     def get_dependencies(self, target=None):
         """Get dependencies of the target(s).