Add support for Cache coverage.

This adds support for Cache coverage parsing. A test is added
that does a basic run of the coverage on a small bit of data.

1 files changed, 187 insertions, 0 deletions

diff --git a/Source/CTest/cmParseCacheCoverage.cxx b/Source/CTest/cmParseCacheCoverage.cxx
new file mode 100644
index 0000000..d2ff404
--- /dev/null
+++ b/Source/CTest/cmParseCacheCoverage.cxx
@@ -0,0 +1,187 @@
+#include "cmStandardIncludes.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include "cmSystemTools.h"
+#include "cmParseCacheCoverage.h"
+#include <cmsys/Directory.hxx>
+#include <cmsys/Glob.hxx>
+
+
+cmParseCacheCoverage::cmParseCacheCoverage(cmCTestCoverageHandlerContainer& cont,
+                                       cmCTest* ctest)
+  :cmParseMumpsCoverage(cont, ctest)
+{
+}
+
+
+bool cmParseCacheCoverage::LoadCoverageData(const char* d)
+{
+  // load all the .mcov files in the specified directory
+  cmsys::Directory dir;
+  if(!dir.Load(d))
+    {
+    return false;
+    }
+  size_t numf;
+  unsigned int i;
+  numf = dir.GetNumberOfFiles();
+  for (i = 0; i < numf; i++)
+    {
+    std::string file = dir.GetFile(i);
+    if(file != "." && file != ".."
+       && !cmSystemTools::FileIsDirectory(file.c_str()))
+      {
+      std::string path = d;
+      path += "/";
+      path += file;
+      if(cmSystemTools::GetFilenameLastExtension(path) == ".cmcov")
+        {
+        if(!this->ReadCMCovFile(path.c_str()))
+          {
+          return false;
+          }
+        }
+      }
+    }
+  return true;
+}
+
+bool cmParseCacheCoverage::SplitString(std::vector<std::string>& args,
+                                       std::string const& line)
+{
+  std::string::size_type pos1 = 0;
+  std::string::size_type pos2 = line.find(',', 0);
+  if(pos2 == std::string::npos)
+    {
+    return false;
+    }
+  std::string arg;
+  while(pos2 != std::string::npos)
+    {
+    arg = line.substr(pos1, pos2-pos1);
+    args.push_back(arg);
+    pos1 = pos2+1;
+    pos2 = line.find(',',pos1);
+    }
+  arg = line.substr(pos1);
+  args.push_back(arg);
+  return true;
+}
+
+bool cmParseCacheCoverage::ReadCMCovFile(const char* file)
+{
+  std::ifstream in(file);
+  if(!in)
+    {
+    cmCTestLog(this->CTest, ERROR_MESSAGE,
+               "Can not open : "
+               << file << "\n");
+    return false;
+    }
+  std::string line;
+  std::vector<std::string> separateLine;
+  if(!cmSystemTools::GetLineFromStream(in, line))
+    {
+    cmCTestLog(this->CTest, ERROR_MESSAGE,
+               "Empty file : "
+               << file << "  referenced in this line of cmcov data:\n"
+               "[" << line << "]\n");
+    return false;
+    }
+  separateLine.clear();
+  this->SplitString(separateLine, line);
+  if(separateLine.size() !=4 || separateLine[0] != "Routine"
+     || separateLine[1] != "Line" || separateLine[2] != "RtnLine"
+     || separateLine[3] != "Code")
+    {
+    cmCTestLog(this->CTest, ERROR_MESSAGE,
+               "Bad first line of cmcov file : "
+               << file << "  line:\n"
+               "[" << line << "]\n");
+    }
+  std::string routine;
+  std::string filepath;
+  bool foundFile = false;
+  while(cmSystemTools::GetLineFromStream(in, line))
+    {
+    // clear out line argument vector
+    separateLine.clear();
+    // parse the comma separated line
+    this->SplitString(separateLine, line);
+    // might have more because code could have a quoted , in it
+    // but we only care about the first 3 args anyway
+    if(separateLine.size() < 4)
+      {
+      cmCTestLog(this->CTest, ERROR_MESSAGE,
+                 "Bad line of cmcov file expected at least 4 found: "
+                 << separateLine.size() << " "
+                 << file << "  line:\n"
+                 "[" << line << "]\n");
+      for(std::string::size_type i = 0; i < separateLine.size(); ++i)
+        {
+        cmCTestLog(this->CTest, ERROR_MESSAGE,""
+                   << separateLine[1] << " ");
+        }
+      cmCTestLog(this->CTest, ERROR_MESSAGE, "\n");
+      return false;
+      }
+    // if we do not have a routine yet, then it should be
+    // the first argument in the vector
+    if(routine.size() == 0)
+      {
+      routine = separateLine[0];
+      // Find the full path to the file
+      if(!this->FindMumpsFile(routine, filepath))
+        {
+        cmCTestLog(this->CTest, ERROR_MESSAGE,
+                   "Could not find mumps file for routine: "
+                   << routine << "\n");
+        filepath = "";
+        continue; // move to next line
+        }
+      }
+    // if we have a routine name, check for end of routine
+    else
+      {
+      // Totals in arg 0 marks the end of a routine
+      if(separateLine[0].substr(0, 6) == "Totals")
+        {
+        routine = ""; // at the end of this routine
+        filepath = "";
+        continue; // move to next line
+        }
+      }
+    // if the file path was not found for the routine
+    // move to next line. We should have already warned
+    // after the call to FindMumpsFile that we did not find
+    // it, so don't report again to cut down on output
+    if(filepath.size() == 0)
+      {
+      continue;
+      }
+    // routine and filepath should be set at this point.
+    // see if we have visited this file before, and if not
+    // call InitializeMumpsFile
+    if( this->Coverage.TotalCoverage[filepath].size() == 0)
+      {
+      // hack, this should be done on every file, but for now
+      // just do it on the ones that have coverage at all
+      this->InitializeMumpsFile(filepath);
+      }
+    // now we are ready to set the coverage from the line of data
+    cmCTestCoverageHandlerContainer::SingleFileCoverageVector&
+      coverageVector = this->Coverage.TotalCoverage[filepath];
+    std::string::size_type linenumber = atoi(separateLine[1].c_str()) -1;
+    int count = atoi(separateLine[2].c_str());
+    if(linenumber > coverageVector.size())
+      {
+      cmCTestLog(this->CTest, ERROR_MESSAGE,
+                 "Parse error line is greater than number of lines in file: "
+                 << linenumber << " " << filepath << "\n");
+      continue; // skip setting count to avoid crash
+      }
+    // now add to count for linenumber
+    coverageVector[linenumber] += count;
+    }
+  return true;
+}