Logo ROOT  
Reference Guide
cygpath.h
Go to the documentation of this file.
1 /* @(#)build/win:$Id$ */
2 
3 /*************************************************************************
4  * Copyright (C) 1995-2010, Rene Brun and Fons Rademakers. *
5  * All rights reserved. *
6  * *
7  * For the licensing terms see $ROOTSYS/LICENSE. *
8  * For the list of contributors see $ROOTSYS/README/CREDITS. *
9  *************************************************************************/
10 
11 #ifndef ROOT_CygPath
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <direct.h>
15 #include <string>
16 
17 static const char *GetCygwinRootDir() {
18  // Get the install location of cygwin.
19  static char buf[512] = {0};
20 
21  if (!buf[0]) {
22  char pathbuffer[_MAX_PATH] = {0};
23  // Search for cygpath in PATH environment variable
24  _searchenv( "cygpath.exe", "PATH", pathbuffer );
25  if( *pathbuffer == '\0' ) {
26  sprintf(buf, "%c:", _getdrive());
27  return buf;
28  }
29  FILE *pipe = _popen( "cygpath -m /", "rt" );
30 
31  if (!pipe) return 0;
32  fgets(buf, sizeof(buf), pipe);
33  int len = strlen(buf);
34  while (buf[len - 1] == '\n' || buf[len - 1] == '\r') {
35  buf[len - 1] = 0;
36  }
37  if (!feof(pipe)) _pclose(pipe);
38  else fprintf(stderr, "GetCygwinRootDir() error: Failed to read the pipe to the end.\n");
39  }
40  return buf;
41 }
42 
43 static bool FromCygToNativePath(std::string& path) {
44  // Convert a cygwin path (/cygdrive/x/...,/home)
45  // to a native Windows path. Return whether the path was changed.
46  static std::string cygRoot;
47  size_t posCygDrive = path.find("/cygdrive/");
48  if (posCygDrive != std::string::npos) {
49  path[posCygDrive] = path[posCygDrive + 10];
50  path[posCygDrive + 1] = ':';
51  path.erase(posCygDrive + 2, 9);
52  return true;
53  } else {
54  size_t posHome = path.find("/home/");
55  if (posHome != std::string::npos) {
56  size_t posColumn = path.find(":");
57  if (posColumn != std::string::npos && posColumn > 0) {
58  // Don't convert C:/home or even C:/cygwin/home
59  if (path[posColumn - 1] >= 'A' && path[posColumn - 1] <= 'Z')
60  return false;
61  if (path[posColumn - 1] >= 'a' && path[posColumn - 1] <= 'z')
62  return false;
63  }
64  if (cygRoot.empty()) {
65  cygRoot = GetCygwinRootDir();
66  size_t len = cygRoot.length();
67  if (cygRoot[len - 1] == '/') {
68  cygRoot.erase(len - 1);
69  }
70  }
71  path.insert(posHome, cygRoot);
72  return true;
73  }
74  }
75  return false;
76 }
77 
78 #endif // ROOT_CygPath
GetCygwinRootDir
static const char * GetCygwinRootDir()
Definition: cygpath.h:17
FromCygToNativePath
static bool FromCygToNativePath(std::string &path)
Definition: cygpath.h:43