1 files changed, 137 insertions, 0 deletions
diff --git a/Source/CTest/cmParseBlanketJSCoverage.cxx b/Source/CTest/cmParseBlanketJSCoverage.cxx
new file mode 100644
index 0000000..63d6a15
--- /dev/null
+++ b/Source/CTest/cmParseBlanketJSCoverage.cxx
@@ -0,0 +1,137 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmParseBlanketJSCoverage.h"
+
+#include "cmCTest.h"
+#include "cmCTestCoverageHandler.h"
+#include "cmSystemTools.h"
+
+#include "cmsys/FStream.hxx"
+#include <stdio.h>
+#include <stdlib.h>
+
+class cmParseBlanketJSCoverage::JSONParser
+{
+public:
+  typedef cmCTestCoverageHandlerContainer::SingleFileCoverageVector
+    FileLinesType;
+  JSONParser(cmCTestCoverageHandlerContainer& cont)
+    : Coverage(cont)
+  {
+  }
+
+  virtual ~JSONParser() = default;
+
+  std::string getValue(std::string const& line, int type)
+  {
+    size_t begIndex;
+    size_t endIndex;
+    endIndex = line.rfind(',');
+    begIndex = line.find_first_of(':');
+    if (type == 0) {
+      //  A unique substring to remove the extra characters
+      //  around the files name in the JSON (extra " and ,)
+      std::string foundFileName =
+        line.substr(begIndex + 3, endIndex - (begIndex + 4));
+      return foundFileName;
+    }
+    return line.substr(begIndex);
+  }
+  bool ParseFile(std::string const& file)
+  {
+    FileLinesType localCoverageVector;
+    std::string filename;
+    bool foundFile = false;
+    bool inSource = false;
+    std::string covResult;
+    std::string line;
+
+    cmsys::ifstream in(file.c_str());
+    if (!in) {
+      return false;
+    }
+    while (cmSystemTools::GetLineFromStream(in, line)) {
+      if (line.find("filename") != std::string::npos) {
+        if (foundFile) {
+          /*
+           * Upon finding a second file name, generate a
+           * vector within the total coverage to capture the
+           * information in the local vector
+           */
+          FileLinesType& CoverageVector =
+            this->Coverage.TotalCoverage[filename];
+          CoverageVector = localCoverageVector;
+          localCoverageVector.clear();
+        }
+        foundFile = true;
+        inSource = false;
+        filename = getValue(line, 0);
+      } else if ((line.find("coverage") != std::string::npos) && foundFile &&
+                 inSource) {
+        /*
+         *  two types of "coverage" in the JSON structure
+         *
+         *  The coverage result over the file or set of files
+         *  and the coverage for each individual line
+         *
+         *  FoundFile and foundSource ensure that
+         *  only the value of the line coverage is captured
+         */
+        std::string result = getValue(line, 1);
+        result = result.substr(2);
+        if (result == "\"\"") {
+          // Empty quotation marks indicate that the
+          // line is not executable
+          localCoverageVector.push_back(-1);
+        } else {
+          // Else, it contains the number of time executed
+          localCoverageVector.push_back(atoi(result.c_str()));
+        }
+      } else if (line.find("source") != std::string::npos) {
+        inSource = true;
+      }
+    }
+
+    // On exit, capture end of last file covered.
+    FileLinesType& CoverageVector = this->Coverage.TotalCoverage[filename];
+    CoverageVector = localCoverageVector;
+    localCoverageVector.clear();
+    return true;
+  }
+
+private:
+  cmCTestCoverageHandlerContainer& Coverage;
+};
+
+cmParseBlanketJSCoverage::cmParseBlanketJSCoverage(
+  cmCTestCoverageHandlerContainer& cont, cmCTest* ctest)
+  : Coverage(cont)
+  , CTest(ctest)
+{
+}
+
+bool cmParseBlanketJSCoverage::LoadCoverageData(std::vector<std::string> files)
+{
+  cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
+                     "Found " << files.size() << " Files" << std::endl,
+                     this->Coverage.Quiet);
+  for (std::string const& file : files) {
+    cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
+                       "Reading JSON File " << file << std::endl,
+                       this->Coverage.Quiet);
+
+    if (!this->ReadJSONFile(file)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+bool cmParseBlanketJSCoverage::ReadJSONFile(std::string const& file)
+{
+  cmParseBlanketJSCoverage::JSONParser parser(this->Coverage);
+  cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
+                     "Parsing " << file << std::endl, this->Coverage.Quiet);
+  parser.ParseFile(file);
+  return true;
+}