installed pty

[VSoRC/.git] / node_modules / node-pty / src / win / path_util.cc

diff --git a/node_modules/node-pty/src/win/path_util.cc b/node_modules/node-pty/src/win/path_util.cc
new file mode 100644 (file)
index 0000000..4e69f30
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+++ b/node_modules/node-pty/src/win/path_util.cc
@@ -0,0 +1,73 @@
+/**
+ * Copyright (c) 2013-2015, Christopher Jeffrey, Peter Sunde (MIT License)
+ * Copyright (c) 2016, Daniel Imms (MIT License).
+ * Copyright (c) 2018, Microsoft Corporation (MIT License).
+ */
+
+#include <nan.h>
+#include <Shlwapi.h> // PathCombine
+
+#include "path_util.h"
+
+namespace path_util {
+
+const wchar_t* to_wstring(const Nan::Utf8String& str) {
+  const char *bytes = *str;
+  unsigned int sizeOfStr = MultiByteToWideChar(CP_UTF8, 0, bytes, -1, NULL, 0);
+  wchar_t *output = new wchar_t[sizeOfStr];
+  MultiByteToWideChar(CP_UTF8, 0, bytes, -1, output, sizeOfStr);
+  return output;
+}
+
+bool file_exists(std::wstring filename) {
+  DWORD attr = ::GetFileAttributesW(filename.c_str());
+  if (attr == INVALID_FILE_ATTRIBUTES || (attr & FILE_ATTRIBUTE_DIRECTORY)) {
+    return false;
+  }
+  return true;
+}
+
+// cmd.exe -> C:\Windows\system32\cmd.exe
+std::wstring get_shell_path(std::wstring filename) {
+  std::wstring shellpath;
+
+  if (file_exists(filename)) {
+    return shellpath;
+  }
+
+  wchar_t buffer_[MAX_ENV];
+  int read = ::GetEnvironmentVariableW(L"Path", buffer_, MAX_ENV);
+  if (!read) {
+    return shellpath;
+  }
+
+  std::wstring delimiter = L";";
+  size_t pos = 0;
+  std::vector<std::wstring> paths;
+  std::wstring buffer(buffer_);
+  while ((pos = buffer.find(delimiter)) != std::wstring::npos) {
+    paths.push_back(buffer.substr(0, pos));
+    buffer.erase(0, pos + delimiter.length());
+  }
+
+  const wchar_t *filename_ = filename.c_str();
+
+  for (int i = 0; i < paths.size(); ++i) {
+    std::wstring path = paths[i];
+    wchar_t searchPath[MAX_PATH];
+    ::PathCombineW(searchPath, const_cast<wchar_t*>(path.c_str()), filename_);
+
+    if (searchPath == NULL) {
+      continue;
+    }
+
+    if (file_exists(searchPath)) {
+      shellpath = searchPath;
+      break;
+    }
+  }
+
+  return shellpath;
+}
+
+}  // namespace path_util