C++: Update summary queries.

Author: criemen

cpp/ql/src/Summary/Files.ql

@@ -1,11 +1,11 @@
 /**
  * @id cpp/summary/lines-of-code
- * @name Total lines of code
- * @description The total number of lines of code across all source files.
+ * @name Total lines of C/C++ code
+ * @description The total number of lines of C/C++ code across all files, including system headers and libraries.
  * @kind metric
  * @tags summary
  */
 
 import cpp
 
-select sum(File f | f.fromSource() | f.getMetrics().getNumberOfLinesOfCode())
+select sum(File f | f.fromSource() | f.getMetrics().getNumberOfLines())

cpp/ql/src/Summary/Lines.ql

@@ -1,7 +1,7 @@
 /**
  * @id cpp/summary/lines-of-code-per-file
- * @name Lines of code per source file
- * @description The number of lines of code for each source file.
+ * @name Lines of C/C++ code per source file
+ * @description The number of lines of C/C++ code for each file in the database, including system headers and libraries.
  * @kind metric
  * @tags summary
  */
@@ -10,4 +10,4 @@ import cpp
 
 from File f
 where f.fromSource()
-select f, f.getMetrics().getNumberOfLinesOfCode()
+select f, f.getMetrics().getNumberOfLines()

cpp/ql/src/Summary/LinesOfCode.ql

@@ -0,0 +1,11 @@
+/**
+ * @id cpp/summary/lines-of-user-code
+ * @name Total lines of C/C++ source code
+ * @description The total number of lines of C/C++ code across all files, excluding system headers and libraries.
+ * @kind metric
+ * @tags summary
+ */
+
+import cpp
+
+select sum(File f | exists(f.getRelativePath()) | f.getMetrics().getNumberOfLines())

cpp/ql/src/Summary/LinesOfCodePerFile.ql

@@ -0,0 +1,13 @@
+/**
+ * @id cpp/summary/lines-of-user-code-per-file
+ * @name Lines of C/C++ code per source file
+ * @description The number of lines of C/C++ code for each file in the source directory.
+ * @kind metric
+ * @tags summary
+ */
+
+import cpp
+
+from File f
+where exists(f.getRelativePath())
+select f, f.getMetrics().getNumberOfLines()