C++ Directory::exists方法代码示例

void command_init (Database& db, const std::vector <std::string>& args)
{
  // Verify that root exists.
  std::string root = db._config->get ("root");
  if (root == "")
    throw std::string ("ERROR: The '--data' option is required.");

  Directory root_dir (root);
  if (!root_dir.exists ())
    throw std::string ("ERROR: The '--data' path does not exist.");

  if (!root_dir.is_directory ())
     throw std::string ("ERROR: The '--data' path is not a directory.");

  if (!root_dir.readable ())
    throw std::string ("ERROR: The '--data' directory is not readable.");

  if (!root_dir.writable ())
    throw std::string ("ERROR: The '--data' directory is not writable.");

  if (!root_dir.executable ())
    throw std::string ("ERROR: The '--data' directory is not executable.");

  // Provide some defaults and overrides.
  db._config->set ("extensions", TASKD_EXTDIR);
  db._config->setIfBlank ("log",           "/tmp/taskd.log");
  db._config->setIfBlank ("queue.size",    "10");
  db._config->setIfBlank ("pid.file",      "/tmp/taskd.pid");
  db._config->setIfBlank ("ip.log",        "on");
  db._config->setIfBlank ("request.limit", "1048576");
  db._config->setIfBlank ("confirmation",  "1");
  db._config->setIfBlank ("verbose",       "1");

  // Suggestions for missing items.
  if (db._config->get ("server") == "")
    std::cout << "You must specify the 'server' variable, for example:\n"
              << "  taskd config server localhost:53589\n"
              << "\n";

  // Create the data structure.
  Directory sub (root_dir);
  sub.cd ();
  sub += "orgs";
  if (!sub.exists ())
    if (!sub.create (0700))
      throw std::string ("ERROR: Could not create '") + sub._data + "'.";

  // Dump the config file?
  db._config->_original_file = root_dir._data + "/config";

  if (! db._config->_original_file.exists ())
    db._config->_original_file.create (0600);

  if (db._config->dirty ())
  {
    db._config->save ();
    if (db._config->getBoolean ("verbose"))
      std::cout << "Created " << std::string (db._config->_original_file) << "\n";
  }
}

	ncFileSaveOperator (const String& file)
		: _writer (0)
	{
		Directory dir (Path::getDirectoryName (file));
		if (dir.exists () == false)
			dir.create ();
		
		_writer = new StreamWriter (file, true);
	}

void Config::createDefaultData (const std::string& data)
{
  Directory d (data);
  if (! d.exists ())
  {
    if (getBoolean ("exit.on.missing.db"))
      throw std::string ("Error: rc.data.location does not exist - exiting according to rc.exit.on.missing.db setting.");

    d.create ();
  }
}

int main (int argc, char** argv)
{
  UnitTest t (27);

  // Ensure environment has no influence.
  unsetenv ("TASKDATA");
  unsetenv ("TASKRC");

  Directory tmp ("tmp");
  tmp.create ();
  t.ok (tmp.exists (), "tmp dir created.");

  File::write ("tmp/file.t.txt", "This is a test\n");
  File f6 ("tmp/file.t.txt");
  t.ok (f6.size () == 15, "File::size tmp/file.t.txt good");
  t.ok (f6.mode () & S_IRUSR, "File::mode tmp/file.t.txt good");
  t.ok (File::remove ("tmp/file.t.txt"), "File::remove tmp/file.t.txt good");

  // operator (std::string) const;
  t.is ((std::string) f6, Directory::cwd () + "/tmp/file.t.txt", "File::operator (std::string) const");

  t.ok (File::create ("tmp/file.t.create"), "File::create tmp/file.t.create good");
  t.ok (File::remove ("tmp/file.t.create"), "File::remove tmp/file.t.create good");

  // basename (std::string) const;
  t.is (f6.name (), "file.t.txt", "File::basename tmp/file.t.txt --> file.t.txt");

  // dirname (std::string) const;
  t.is (f6.parent (), Directory::cwd () + "/tmp", "File::dirname tmp/file.t.txt --> tmp");

  // bool rename (const std::string&);
  File f7 ("tmp/file.t.2.txt");
  f7.append ("something\n");
  f7.close ();

  t.ok (f7.rename ("tmp/file.t.3.txt"),  "File::rename did not fail");
  t.is (f7._data, Directory::cwd () + "/tmp/file.t.3.txt",    "File::rename stored new name");
  t.ok (f7.exists (),                    "File::rename new file exists");
  t.ok (f7.remove (),                    "File::remove tmp/file.t.3.txt good");
  t.notok (f7.exists (),                 "File::remove new file no longer exists");

  // Test permissions.
  File f8 ("tmp/file.t.perm.txt");
  f8.create (0744);
  t.ok (f8.exists (),                    "File::create perm file exists");
  mode_t m = f8.mode ();
  t.ok    (m & S_IFREG,                  "File::mode tmp/file.t.perm.txt S_IFREG good");
  t.ok    (m & S_IRUSR,                  "File::mode tmp/file.t.perm.txt r-------- good");
  t.ok    (m & S_IWUSR,                  "File::mode tmp/file.t.perm.txt -w------- good");
  t.ok    (m & S_IXUSR,                  "File::mode tmp/file.t.perm.txt --x------ good");
  t.ok    (m & S_IRGRP,                  "File::mode tmp/file.t.perm.txt ---r----- good");
  t.notok (m & S_IWGRP,                  "File::mode tmp/file.t.perm.txt ----w---- good");
  t.notok (m & S_IXGRP,                  "File::mode tmp/file.t.perm.txt -----x--- good");
  t.ok    (m & S_IROTH,                  "File::mode tmp/file.t.perm.txt ------r-- good");
  t.notok (m & S_IWOTH,                  "File::mode tmp/file.t.perm.txt -------w- good");
  t.notok (m & S_IXOTH,                  "File::mode tmp/file.t.perm.txt --------x good");
  f8.remove ();
  t.notok (f8.exists (),                 "File::remove perm file no longer exists");

  tmp.remove ();
  t.notok (tmp.exists (),                "tmp dir removed.");

  return 0;
}

int main (int, char**)
{
  UnitTest t (110);

  // Ensure environment has no influence.
  unsetenv ("TASKDATA");
  unsetenv ("TASKRC");

  // Path ();
  Path p0;
  t.is (p0._data, "", "Path::Path");

  // Path (const Path&);
  Path p1 = Path ("foo");
  t.is (p1._data, Directory::cwd () + "/foo", "Path::operator=");

  // Path (const std::string&);
  Path p2 ("~");
  t.ok (p2._data != "~", "~ expanded to " + p2._data);

  Path p3 ("/tmp");
  t.ok (p3._data == "/tmp", "/tmp -> /tmp");

  // operator==
  t.notok (p2 == p3, "p2 != p3");

  // Path& operator= (const Path&);
  Path p3_copy (p3);
  t.is (p3._data, p3_copy._data, "Path::Path (Path&)");

  // operator (std::string) const;
  t.is ((std::string) p3, "/tmp", "Path::operator (std::string) const");

  // std::string name () const;
  Path p4 ("/a/b/c/file.ext");
  t.is (p4.name (), "file.ext",  "/a/b/c/file.ext name is file.ext");

  // std::string parent () const;
  t.is (p4.parent (), "/a/b/c",  "/a/b/c/file.ext parent is /a/b/c");

  // std::string extension () const;
  t.is (p4.extension (), "ext",  "/a/b/c/file.ext extension is ext");

  // bool exists () const;
  t.ok (p2.exists (), "~ exists");
  t.ok (p3.exists (), "/tmp exists");

  // bool is_directory () const;
  t.ok (p2.is_directory (), "~ is_directory");
  t.ok (p3.is_directory (), "/tmp is_directory");

  // bool is_link () const;
  t.notok (p2.is_link (), "~ !is_link");

  // bool readable () const;
  t.ok (p2.readable (), "~ readable");
  t.ok (p3.readable (), "/tmp readable");

  // bool writable () const;
  t.ok (p2.writable (), "~ writable");
  t.ok (p3.writable (), "/tmp writable");

  // bool executable () const;
  t.ok (p2.executable (), "~ executable");
  t.ok (p3.executable (), "/tmp executable");

  // static std::string expand (const std::string&);
  t.ok (Path::expand ("~") != "~", "Path::expand ~ != ~");
  t.ok (Path::expand ("~/") != "~/", "Path::expand ~/ != ~/");

  // static std::vector <std::string> glob (const std::string&);
  std::vector <std::string> out = Path::glob ("/tmp");
  t.ok (out.size () == 1, "/tmp -> 1 result");
  t.is (out[0], "/tmp", "/tmp -> /tmp");

  out = Path::glob ("/t?p");
  t.ok (out.size () == 1, "/t?p -> 1 result");
  t.is (out[0], "/tmp", "/t?p -> /tmp");

  out = Path::glob ("/[s-u]mp");
  t.ok (out.size () == 1, "/[s-u]mp -> 1 result");
  t.is (out[0], "/tmp", "/[s-u]mp -> /tmp");

  // bool is_absolute () const;
  t.notok (p0.is_absolute (), "'' !is_absolute");
  t.ok    (p1.is_absolute (), "foo is_absolute");
  t.ok    (p2.is_absolute (), "~ is_absolute (after expansion)");
  t.ok    (p3.is_absolute (), "/tmp is_absolute");
  t.ok    (p4.is_absolute (), "/a/b/c/file.ext is_absolute");

  Directory tmp ("tmp");
  tmp.create ();
  t.ok (tmp.exists (), "tmp dir created.");

  File::write ("tmp/file.t.txt", "This is a test\n");
  File f6 ("tmp/file.t.txt");
  t.ok (f6.size () == 15, "File::size tmp/file.t.txt good");
  t.ok (f6.mode () & S_IRUSR, "File::mode tmp/file.t.txt good");
  t.ok (File::remove ("tmp/file.t.txt"), "File::remove tmp/file.t.txt good");

//.........这里部分代码省略.........

//.........这里部分代码省略.........
      out << "\n  " << format (STRING_CMD_SHOW_DIFFER_COLOR, error.colorize ("color"));

    out << "\n\n";
  }

  out << legacyCheckForDeprecatedVariables ();
  out << legacyCheckForDeprecatedColor ();
  out << legacyCheckForDeprecatedColumns ();

  // TODO Check for referenced but missing theme files.
  // TODO Check for referenced but missing string files.
  // TODO Check for referenced but missing tips files.

  // Check for referenced but missing hook scripts.
#ifdef HAVE_LIBLUA
  std::vector <std::string> missing_scripts;
  for (i = all.begin (); i != all.end (); ++i)
  {
    if (i->substr (0, 5) == "hook.")
    {
      std::string value = context.config.get (*i);
      Nibbler n (value);

      // <path>:<function> [, ...]
      while (!n.depleted ())
      {
        std::string file;
        std::string function;
        if (n.getUntil (':', file) &&
            n.skip (':')           &&
            n.getUntil (',', function))
        {
          Path script (file);
          if (!script.exists () || !script.readable ())
            missing_scripts.push_back (file);

          (void) n.skip (',');
        }
      }
    }
  }

  if (missing_scripts.size ())
  {
    out << STRING_CMD_SHOW_HOOKS << "\n";

    for (i = missing_scripts.begin (); i != missing_scripts.end (); ++i)
      out << "  " << *i << "\n";

    out << "\n";
  }
#endif

  // Check for bad values in rc.annotations.
  // TODO Deprecated.
  std::string annotations = context.config.get ("annotations");
  if (annotations != "full"   &&
      annotations != "sparse" &&
      annotations != "none")
    out << format (STRING_CMD_SHOW_CONFIG_ERROR, "annotations", annotations)
        << "\n";

  // Check for bad values in rc.calendar.details.
  std::string calendardetails = context.config.get ("calendar.details");
  if (calendardetails != "full"   &&
      calendardetails != "sparse" &&

int main (int argc, char** argv)
{
  UnitTest t (49);

  // Ensure environment has no influence.
  unsetenv ("TASKDATA");
  unsetenv ("TASKRC");

  Directory tmp ("tmp");
  tmp.create ();
  t.ok (tmp.exists (), "tmp dir created.");

  // Directory (const File&);
  // Directory (const Path&);
  Directory d0 (Path ("tmp"));
  Directory d1 (File ("tmp"));
  Directory d2 (File (Path ("tmp")));
  t.is (d0._data, d1._data, "Directory(std::string) == Directory (File&)");
  t.is (d0._data, d2._data, "Directory(std::string) == Directory (File (Path &))");
  t.is (d1._data, d2._data, "Directory(File&)) == Directory (File (Path &))");

  // Directory (const Directory&);
  Directory d3 (d2);
  t.is (d3._data, Directory::cwd () + "/tmp", "Directory (Directory&)");

  // Directory (const std::string&);
  Directory d4 ("tmp/test_directory");

  // Directory& operator= (const Directory&);
  Directory d5 = d4;
  t.is (d5._data, Directory::cwd () + "/tmp/test_directory", "Directory::operator=");

  // operator (std::string) const;
  t.is ((std::string) d3, Directory::cwd () + "/tmp", "Directory::operator (std::string) const");

  // virtual bool create ();
  t.ok (d5.create (), "Directory::create tmp/test_directory");
  t.ok (d5.exists (), "Directory::exists tmp/test_directory");

  Directory d6 (d5._data + "/dir");
  t.ok (d6.create (), "Directory::create tmp/test_directory/dir");

  File::create (d5._data + "/f0");
  File::create (d6._data + "/f1");

  // std::vector <std::string> list ();
  std::vector <std::string> files = d5.list ();
  std::sort (files.begin (), files.end ());
  t.is ((int)files.size (), 2, "Directory::list 1 file");
  t.is (files[0], Directory::cwd () + "/tmp/test_directory/dir", "file[0] is tmp/test_directory/dir");
  t.is (files[1], Directory::cwd () + "/tmp/test_directory/f0", "file[1] is tmp/test_directory/f0");

  // std::vector <std::string> listRecursive ();
  files = d5.listRecursive ();
  std::sort (files.begin (), files.end ());
  t.is ((int)files.size (), 2, "Directory::list 1 file");
  t.is (files[0], Directory::cwd () + "/tmp/test_directory/dir/f1", "file is tmp/test_directory/dir/f1");
  t.is (files[1], Directory::cwd () + "/tmp/test_directory/f0", "file is tmp/test_directory/f0");

  // virtual bool remove ();
  t.ok (File::remove (d5._data + "/f0"), "File::remove tmp/test_directory/f0");
  t.ok (File::remove (d6._data + "/f1"), "File::remove tmp/test_directory/dir/f1");

  t.ok (d6.remove (), "Directory::remove tmp/test_directory/dir");
  t.notok (d6.exists (), "Directory::exists tmp/test_directory/dir - no");

  t.ok (d5.remove (), "Directory::remove tmp/test_directory");
  t.notok (d5.exists (), "Directory::exists tmp/test_directory - no");

  // bool remove (const std::string&);
  Directory d7 ("tmp/to_be_removed");
  t.ok (d7.create (), "Directory::create tmp/to_be_removed");
  File::create (d7._data + "/f0");
  Directory d8 (d7._data + "/another");
  t.ok (d8.create (), "Directory::create tmp/to_be_removed/another");
  File::create (d8._data + "/f1");
  t.ok (d7.remove (), "Directory::remove tmp/to_be_removed");
  t.notok (d7.exists (), "Directory tmp/to_be_removed gone");

  // static std::string cwd ();
  std::string cwd = Directory::cwd ();
  t.ok (cwd.length () > 0, "Directory::cwd returned a value");

  // bool parent (std::string&) const;
  Directory d9 ("/one/two/three/four.txt");
  t.ok (d9.up (),                   "parent /one/two/three/four.txt --> true");
  t.is (d9._data, "/one/two/three", "parent /one/two/three/four.txt --> /one/two/three");
  t.ok (d9.up (),                   "parent /one/two/three --> true");
  t.is (d9._data, "/one/two",       "parent /one/two/three --> /one/two");
  t.ok (d9.up (),                   "parent /one/two --> true");
  t.is (d9._data, "/one",           "parent /one/two --> /one");
  t.ok (d9.up (),                   "parent /one --> true");
  t.is (d9._data, "/",              "parent /one --> /");
  t.notok (d9.up (),                "parent / --> false");

  // Test permissions.
  umask (0022);
  Directory d10 ("tmp/dir.perm");
  d10.create (0750);
  t.ok (d10.exists (),               "Directory::create perm file exists");
//.........这里部分代码省略.........

void command_init (Database& db, const std::vector <std::string>& args)
{
  // Verify that root exists.
  std::string root = db._config->get ("root");
  if (root == "")
    throw std::string (STRING_INIT_DATA_REQUIRED);

  Directory root_dir (root);
  if (!root_dir.exists ())
    throw std::string (STRING_INIT_PATH_MISSING);

  if (!root_dir.is_directory ())
    throw std::string (STRING_INIT_PATH_NOT_DIR);

  if (!root_dir.readable ())
    throw std::string (STRING_INIT_PATH_NOT_READ);

  if (!root_dir.writable ())
    throw std::string (STRING_INIT_PATH_NOT_WRITE);

  if (!root_dir.executable ())
    throw std::string (STRING_INIT_PATH_NOT_EXE);

  // Provide some defaults and overrides.
  db._config->set ("extensions", TASKD_EXTDIR);
  db._config->setIfBlank ("log",           "/tmp/taskd.log");
  db._config->setIfBlank ("queue.size",    "10");
  db._config->setIfBlank ("pid.file",      "/tmp/taskd.pid");
  db._config->setIfBlank ("ip.log",        "on");
  db._config->setIfBlank ("request.limit", "1048576");
  db._config->setIfBlank ("confirmation",  "1");
  db._config->setIfBlank ("verbose",       "1");
  db._config->setIfBlank ("trust",         "strict");

  // Suggestions for missing items.
  if (db._config->get ("server") == "")
    std::cout << STRING_INIT_SERVER
              << "\n"
              << "  taskd config server localhost:53589\n"
              << "\n";

  // Create the data structure.
  Directory sub (root_dir);
  sub.cd ();
  sub += "orgs";
  if (!sub.exists ())
    if (!sub.create (0700))
      throw format (STRING_INIT_COULD_NOT_CREATE, sub._data);

  // Dump the config file?
  db._config->_original_file = root_dir._data + "/config";

  if (! db._config->_original_file.exists ())
    db._config->_original_file.create (0600);

  if (db._config->dirty ())
  {
    db._config->save ();
    if (db._config->getBoolean ("verbose"))
      std::cout << format (STRING_INIT_CREATED, db._config->_original_file)
                << "\n";
  }
}