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- /*
- Copyright (c) 2012, 2021, Oracle and/or its affiliates.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License, version 2.0,
- as published by the Free Software Foundation.
-
- This program is also distributed with certain software (including
- but not limited to OpenSSL) that is licensed under separate terms,
- as designated in a particular file or component or in included license
- documentation. The authors of MySQL hereby grant you an additional
- permission to link the program and your derivative works with the
- separately licensed software that they have included with MySQL.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License, version 2.0, for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #include "path.h"
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- #include "my_sys.h"
- #include "my_global.h"
- #include "my_dir.h"
-
- #ifndef _WIN32
- #include <pwd.h>
- #endif
-
- Path::Path() {}
-
- Path::Path(const std::string &s)
- {
- path(s);
- }
-
- Path::Path(const Path &p)
- {
- m_filename= p.m_filename;
- m_path= p.m_path;
- }
-
- bool Path::path_getcwd()
- {
- char path[FN_REFLEN];
- if (my_getwd(path, FN_REFLEN-1, MYF(MY_WME)))
- return false;
- m_path.clear();
- m_path.append(path);
- trim();
- return true;
- }
-
- void Path::trim()
- {
- if (m_path.length() <= 1)
- return;
- std::string::iterator it= m_path.end();
- --it;
-
- while((*it) == FN_LIBCHAR && m_path.length() > 1)
- {
- m_path.erase(it--);
- }
- }
-
- void Path::parent_directory(Path *out)
- {
- size_t idx= m_path.rfind(FN_DIRSEP);
- if (idx == std::string::npos)
- {
- out->path("");
- }
- else
- out->path(m_path.substr(0, idx));
- }
-
- Path &Path::up()
- {
- size_t idx= m_path.rfind(FN_DIRSEP);
- if (idx == std::string::npos)
- {
- m_path.clear();
- }
- else
- m_path.assign(m_path.substr(0, idx));
- return *this;
- }
-
- Path &Path::append(const std::string &path)
- {
- if (m_path.length() > 1 && path[0] != FN_LIBCHAR)
- m_path.append(FN_DIRSEP);
- m_path.append(path);
- trim();
- return *this;
- }
-
- Path &Path::filename_append(const std::string &ext)
- {
- m_filename.append(ext);
- trim();
- return *this;
- }
-
- void Path::path(const std::string &p)
- {
- m_path.clear();
- m_path.append(p);
- trim();
- }
-
- void Path::filename(const std::string &f)
- {
- m_filename= f;
- }
-
- void Path::path(const Path &p)
- {
- path(p.m_path);
- }
-
- void Path::filename(const Path &p)
- {
- path(p.m_filename);
- }
-
- bool Path::qpath(const std::string &qp)
- {
- size_t idx= qp.rfind(FN_DIRSEP);
- if (idx == std::string::npos)
- {
- m_filename= qp;
- m_path.clear();
- }
- else
- {
- filename(qp.substr(idx + 1, qp.size() - idx));
- path(qp.substr(0, idx));
- }
- if (is_qualified_path())
- return true;
- else
- return false;
- }
-
- bool Path::normalize_path()
- {
- if (!m_path.length())
- return false;
-
- char real_path[FN_REFLEN];
- size_t real_path_len;
-
- real_path_len= cleanup_dirname(real_path,m_path.c_str());
- if (real_path_len > FN_REFLEN)
- return false;
-
- if (my_realpath(real_path, real_path, MYF(0)))
- return false;
-
- m_path.clear();
- m_path.append(real_path);
- trim();
-
- return true;
- }
-
- bool Path::is_qualified_path()
- {
- return m_filename.length() > 0;
- }
-
- bool Path::exists()
- {
- if (!is_qualified_path())
- {
- MY_DIR *dir= my_dir(m_path.c_str(), MY_WANT_STAT|MY_DONT_SORT);
- if (dir == 0)
- return false;
- my_dirend(dir);
- return true;
- }
- else
- {
- MY_STAT s;
- std::string qpath(m_path);
- qpath.append(FN_DIRSEP).append(m_filename);
- if (my_stat(qpath.c_str(), &s, MYF(0)) == NULL)
- return false;
- if (!MY_S_ISREG(s.st_mode))
- return false;
- return true;
- }
- }
-
- const std::string Path::to_str()
- {
- std::string qpath(m_path);
- if (m_filename.length() != 0)
- {
- qpath.append(FN_DIRSEP);
- qpath.append(m_filename);
- }
- return qpath;
- }
-
- bool Path::empty()
- {
- if (!exists())
- return true;
- MY_DIR *dir;
- bool ret= false;
- if (!(dir= my_dir(m_path.c_str(), MY_WANT_STAT|MY_DONT_SORT)))
- ret= false;
- else
- {
- if (dir->number_off_files == 2)
- ret= true;
- }
- my_dirend(dir);
- return ret;
- }
-
- #ifndef _WIN32
- void Path::get_homedir()
- {
- struct passwd *pwd;
- pwd= getpwuid(geteuid());
- if (pwd == NULL)
- return;
- if (pwd->pw_dir != 0)
- path(pwd->pw_dir);
- else
- path("");
- }
- #endif
-
- std::ostream &operator<<(std::ostream &op, const Path &p)
- {
- std::string qpath(p.m_path);
- if (p.m_filename.length() != 0)
- {
- qpath.append(FN_DIRSEP);
- qpath.append(p.m_filename);
- }
- return op << qpath;
- }
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