1 files changed, 80 insertions, 0 deletions
diff --git a/Source/cmWriteFileCommand.cxx b/Source/cmWriteFileCommand.cxx
new file mode 100644
index 0000000..96c8e27
--- /dev/null
+++ b/Source/cmWriteFileCommand.cxx
@@ -0,0 +1,80 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmWriteFileCommand.h"
+
+#include <cmsys/FStream.hxx>
+
+#include <sys/types.h>
+// include sys/stat.h after sys/types.h
+#include <sys/stat.h>
+
+#include "cmMakefile.h"
+#include "cmSystemTools.h"
+
+class cmExecutionStatus;
+
+// cmLibraryCommand
+bool cmWriteFileCommand::InitialPass(std::vector<std::string> const& args,
+                                     cmExecutionStatus&)
+{
+  if (args.size() < 2) {
+    this->SetError("called with incorrect number of arguments");
+    return false;
+  }
+  std::string message;
+  std::vector<std::string>::const_iterator i = args.begin();
+
+  std::string fileName = *i;
+  bool overwrite = true;
+  i++;
+
+  for (; i != args.end(); ++i) {
+    if (*i == "APPEND") {
+      overwrite = false;
+    } else {
+      message += *i;
+    }
+  }
+
+  if (!this->Makefile->CanIWriteThisFile(fileName.c_str())) {
+    std::string e =
+      "attempted to write a file: " + fileName + " into a source directory.";
+    this->SetError(e);
+    cmSystemTools::SetFatalErrorOccured();
+    return false;
+  }
+
+  std::string dir = cmSystemTools::GetFilenamePath(fileName);
+  cmSystemTools::MakeDirectory(dir.c_str());
+
+  mode_t mode = 0;
+
+  // Set permissions to writable
+  if (cmSystemTools::GetPermissions(fileName.c_str(), mode)) {
+    cmSystemTools::SetPermissions(fileName.c_str(),
+#if defined(_MSC_VER) || defined(__MINGW32__)
+                                  mode | S_IWRITE
+#else
+                                  mode | S_IWUSR | S_IWGRP
+#endif
+                                  );
+  }
+  // If GetPermissions fails, pretend like it is ok. File open will fail if
+  // the file is not writable
+  cmsys::ofstream file(fileName.c_str(),
+                       overwrite ? std::ios::out : std::ios::app);
+  if (!file) {
+    std::string error = "Internal CMake error when trying to open file: ";
+    error += fileName;
+    error += " for writing.";
+    this->SetError(error);
+    return false;
+  }
+  file << message << std::endl;
+  file.close();
+  if (mode) {
+    cmSystemTools::SetPermissions(fileName.c_str(), mode);
+  }
+
+  return true;
+}