1 files changed, 133 insertions, 0 deletions
diff --git a/Source/cmGetFilenameComponentCommand.cxx b/Source/cmGetFilenameComponentCommand.cxx
new file mode 100644
index 0000000..1b358ab
--- /dev/null
+++ b/Source/cmGetFilenameComponentCommand.cxx
@@ -0,0 +1,133 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmGetFilenameComponentCommand.h"
+
+#include "cmMakefile.h"
+#include "cmStateTypes.h"
+#include "cmSystemTools.h"
+
+class cmExecutionStatus;
+
+// cmGetFilenameComponentCommand
+bool cmGetFilenameComponentCommand::InitialPass(
+  std::vector<std::string> const& args, cmExecutionStatus&)
+{
+  if (args.size() < 3) {
+    this->SetError("called with incorrect number of arguments");
+    return false;
+  }
+
+  // Check and see if the value has been stored in the cache
+  // already, if so use that value
+  if (args.size() >= 4 && args[args.size() - 1] == "CACHE") {
+    const char* cacheValue = this->Makefile->GetDefinition(args[0]);
+    if (cacheValue && !cmSystemTools::IsNOTFOUND(cacheValue)) {
+      return true;
+    }
+  }
+
+  std::string result;
+  std::string filename = args[1];
+  if (filename.find("[HKEY") != std::string::npos) {
+    // Check the registry as the target application would view it.
+    cmSystemTools::KeyWOW64 view = cmSystemTools::KeyWOW64_32;
+    cmSystemTools::KeyWOW64 other_view = cmSystemTools::KeyWOW64_64;
+    if (this->Makefile->PlatformIs64Bit()) {
+      view = cmSystemTools::KeyWOW64_64;
+      other_view = cmSystemTools::KeyWOW64_32;
+    }
+    cmSystemTools::ExpandRegistryValues(filename, view);
+    if (filename.find("/registry") != std::string::npos) {
+      std::string other = args[1];
+      cmSystemTools::ExpandRegistryValues(other, other_view);
+      if (other.find("/registry") == std::string::npos) {
+        filename = other;
+      }
+    }
+  }
+  std::string storeArgs;
+  std::string programArgs;
+  if (args[2] == "DIRECTORY" || args[2] == "PATH") {
+    result = cmSystemTools::GetFilenamePath(filename);
+  } else if (args[2] == "NAME") {
+    result = cmSystemTools::GetFilenameName(filename);
+  } else if (args[2] == "PROGRAM") {
+    for (unsigned int i = 2; i < args.size(); ++i) {
+      if (args[i] == "PROGRAM_ARGS") {
+        i++;
+        if (i < args.size()) {
+          storeArgs = args[i];
+        }
+      }
+    }
+
+    // First assume the path to the program was specified with no
+    // arguments and with no quoting or escaping for spaces.
+    // Only bother doing this if there is non-whitespace.
+    if (!cmSystemTools::TrimWhitespace(filename).empty()) {
+      result = cmSystemTools::FindProgram(filename);
+    }
+
+    // If that failed then assume a command-line string was given
+    // and split the program part from the rest of the arguments.
+    if (result.empty()) {
+      std::string program;
+      if (cmSystemTools::SplitProgramFromArgs(filename, program,
+                                              programArgs)) {
+        if (cmSystemTools::FileExists(program)) {
+          result = program;
+        } else {
+          result = cmSystemTools::FindProgram(program);
+        }
+      }
+      if (result.empty()) {
+        programArgs.clear();
+      }
+    }
+  } else if (args[2] == "EXT") {
+    result = cmSystemTools::GetFilenameExtension(filename);
+  } else if (args[2] == "NAME_WE") {
+    result = cmSystemTools::GetFilenameWithoutExtension(filename);
+  } else if (args[2] == "ABSOLUTE" || args[2] == "REALPATH") {
+    // If the path given is relative, evaluate it relative to the
+    // current source directory unless the user passes a different
+    // base directory.
+    std::string baseDir = this->Makefile->GetCurrentSourceDirectory();
+    for (unsigned int i = 3; i < args.size(); ++i) {
+      if (args[i] == "BASE_DIR") {
+        ++i;
+        if (i < args.size()) {
+          baseDir = args[i];
+        }
+      }
+    }
+    // Collapse the path to its simplest form.
+    result = cmSystemTools::CollapseFullPath(filename, baseDir);
+    if (args[2] == "REALPATH") {
+      // Resolve symlinks if possible
+      result = cmSystemTools::GetRealPath(result);
+    }
+  } else {
+    std::string err = "unknown component " + args[2];
+    this->SetError(err);
+    return false;
+  }
+
+  if (args.size() >= 4 && args[args.size() - 1] == "CACHE") {
+    if (!programArgs.empty() && !storeArgs.empty()) {
+      this->Makefile->AddCacheDefinition(
+        storeArgs, programArgs.c_str(), "",
+        args[2] == "PATH" ? cmStateEnums::FILEPATH : cmStateEnums::STRING);
+    }
+    this->Makefile->AddCacheDefinition(
+      args[0], result.c_str(), "",
+      args[2] == "PATH" ? cmStateEnums::FILEPATH : cmStateEnums::STRING);
+  } else {
+    if (!programArgs.empty() && !storeArgs.empty()) {
+      this->Makefile->AddDefinition(storeArgs, programArgs.c_str());
+    }
+    this->Makefile->AddDefinition(args[0], result.c_str());
+  }
+
+  return true;
+}