1 files changed, 132 insertions, 0 deletions
diff --git a/Source/cmIncludeDirectoryCommand.cxx b/Source/cmIncludeDirectoryCommand.cxx
new file mode 100644
index 0000000..549a263
--- /dev/null
+++ b/Source/cmIncludeDirectoryCommand.cxx
@@ -0,0 +1,132 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmIncludeDirectoryCommand.h"
+
+#include <algorithm>
+#include <set>
+#include <utility>
+
+#include "cmGeneratorExpression.h"
+#include "cmMakefile.h"
+#include "cmSystemTools.h"
+
+class cmExecutionStatus;
+
+// cmIncludeDirectoryCommand
+bool cmIncludeDirectoryCommand::InitialPass(
+  std::vector<std::string> const& args, cmExecutionStatus&)
+{
+  if (args.empty()) {
+    return true;
+  }
+
+  std::vector<std::string>::const_iterator i = args.begin();
+
+  bool before = this->Makefile->IsOn("CMAKE_INCLUDE_DIRECTORIES_BEFORE");
+  bool system = false;
+
+  if ((*i) == "BEFORE") {
+    before = true;
+    ++i;
+  } else if ((*i) == "AFTER") {
+    before = false;
+    ++i;
+  }
+
+  std::vector<std::string> beforeIncludes;
+  std::vector<std::string> afterIncludes;
+  std::set<std::string> systemIncludes;
+
+  for (; i != args.end(); ++i) {
+    if (*i == "SYSTEM") {
+      system = true;
+      continue;
+    }
+    if (i->empty()) {
+      this->SetError("given empty-string as include directory.");
+      return false;
+    }
+
+    std::vector<std::string> includes;
+
+    this->GetIncludes(*i, includes);
+
+    if (before) {
+      beforeIncludes.insert(beforeIncludes.end(), includes.begin(),
+                            includes.end());
+    } else {
+      afterIncludes.insert(afterIncludes.end(), includes.begin(),
+                           includes.end());
+    }
+    if (system) {
+      systemIncludes.insert(includes.begin(), includes.end());
+    }
+  }
+  std::reverse(beforeIncludes.begin(), beforeIncludes.end());
+
+  this->Makefile->AddIncludeDirectories(afterIncludes);
+  this->Makefile->AddIncludeDirectories(beforeIncludes, before);
+  this->Makefile->AddSystemIncludeDirectories(systemIncludes);
+
+  return true;
+}
+
+// do a lot of cleanup on the arguments because this is one place where folks
+// sometimes take the output of a program and pass it directly into this
+// command not thinking that a single argument could be filled with spaces
+// and newlines etc like below:
+//
+// "   /foo/bar
+//    /boo/hoo /dingle/berry "
+//
+// ideally that should be three separate arguments but when sucking the
+// output from a program and passing it into a command the cleanup doesn't
+// always happen
+//
+void cmIncludeDirectoryCommand::GetIncludes(const std::string& arg,
+                                            std::vector<std::string>& incs)
+{
+  // break apart any line feed arguments
+  std::string::size_type pos = 0;
+  std::string::size_type lastPos = 0;
+  while ((pos = arg.find('\n', lastPos)) != std::string::npos) {
+    if (pos) {
+      std::string inc = arg.substr(lastPos, pos);
+      this->NormalizeInclude(inc);
+      if (!inc.empty()) {
+        incs.push_back(std::move(inc));
+      }
+    }
+    lastPos = pos + 1;
+  }
+  std::string inc = arg.substr(lastPos);
+  this->NormalizeInclude(inc);
+  if (!inc.empty()) {
+    incs.push_back(std::move(inc));
+  }
+}
+
+void cmIncludeDirectoryCommand::NormalizeInclude(std::string& inc)
+{
+  std::string::size_type b = inc.find_first_not_of(" \r");
+  std::string::size_type e = inc.find_last_not_of(" \r");
+  if ((b != std::string::npos) && (e != std::string::npos)) {
+    inc.assign(inc, b, 1 + e - b); // copy the remaining substring
+  } else {
+    inc.clear();
+    return;
+  }
+
+  if (!cmSystemTools::IsOff(inc)) {
+    cmSystemTools::ConvertToUnixSlashes(inc);
+
+    if (!cmSystemTools::FileIsFullPath(inc)) {
+      if (!cmGeneratorExpression::StartsWithGeneratorExpression(inc)) {
+        std::string tmp = this->Makefile->GetCurrentSourceDirectory();
+        tmp += "/";
+        tmp += inc;
+        inc = tmp;
+      }
+    }
+  }
+}