/* Copyright (C) 2004 J.F.Dockes
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _PATHUT_H_INCLUDED_
#define _PATHUT_H_INCLUDED_
#include <unistd.h>
#include <string>
#include <list>
#include "refcntr.h"
#ifndef NO_NAMESPACES
using std::string;
using std::list;
#endif
/// Add a / at the end if none there yet.
extern void path_catslash(string &s);
/// Concatenate 2 paths
extern string path_cat(const string &s1, const string &s2);
/// Get the simple file name (get rid of any directory path prefix
extern string path_getsimple(const string &s);
/// Simple file name + optional suffix stripping
extern string path_basename(const string &s, const string &suff=string());
/// Get the father directory
extern string path_getfather(const string &s);
/// Get the current user's home directory
extern string path_home();
/// Expand ~ at the beginning of string
extern string path_tildexpand(const string &s);
/// Use getcwd() to make absolute path if needed. Beware: ***this can fail***
/// we return an empty path in this case.
extern string path_absolute(const string &s);
/// Clean up path by removing duplicated / and resolving ../ + make it absolute
extern string path_canon(const string &s);
/// Use glob(3) to return a list of file names matching pattern inside dir
extern list<string> path_dirglob(const string &dir,
const string pattern);
/// Encode according to rfc 1738
extern string url_encode(const string& url,
string::size_type offs = 0);
/// Transcode to utf-8 if possible or url encoding, for display.
extern bool printableUrl(const string &fcharset,
const string &in, string &out);
// Convert to file path if url is like file://
extern string fileurltolocalpath(string url);
/// Return the host+path part of an url. This is not a general
/// routine, it does the right thing only in the recoll context
extern string url_gpath(const string& url);
/// Stat parameter and check if it's a directory
extern bool path_isdir(const string& path);
/** A small wrapper around statfs et al, to return percentage of disk
occupation */
bool fsocc(const string &path, int *pc, // Percent occupied
long *avmbs = 0 // Mbs available to non-superuser
);
/// Create temporary directory
extern bool maketmpdir(string& tdir, string& reason);
/// Temporary file class
class TempFileInternal {
public:
TempFileInternal(const string& suffix);
~TempFileInternal();
const char *filename() {return m_filename.c_str();}
const string &getreason() {return m_reason;}
bool ok() {return !m_filename.empty();}
private:
string m_filename;
string m_reason;
};
typedef RefCntr<TempFileInternal> TempFile;
/// Temporary directory class
class TempDir {
public:
TempDir();
~TempDir();
const char *dirname() {return m_dirname.c_str();}
const string &getreason() {return m_reason;}
bool ok() {return !m_dirname.empty();}
bool wipe();
private:
string m_dirname;
string m_reason;
};
/// Lock/pid file class. This is quite close to the pidfile_xxx
/// utilities in FreeBSD with a bit more encapsulation. I'd have used
/// the freebsd code if it was available elsewhere
class Pidfile {
public:
Pidfile(const string& path) : m_path(path), m_fd(-1) {}
~Pidfile();
/// Open/create the pid file.
/// @return 0 if ok, > 0 for pid of existing process, -1 for other error.
pid_t open();
/// Write pid into the pid file
/// @return 0 ok, -1 error
int write_pid();
/// Close the pid file (unlocks)
int close();
/// Delete the pid file
int remove();
const string& getreason() {return m_reason;}
private:
string m_path;
int m_fd;
string m_reason;
pid_t read_pid();
int flopen();
};
#endif /* _PATHUT_H_INCLUDED_ */