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/*
* Copyright (c) 2011 Paulo Zanoni
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <cstdlib>
#include <cstring>
#include <iostream>
#include "XDGBasedir.h"
#include "XDGUtils.h"
// XXX: spec mentions these directories, but hardcodes /etc and /usr in the
// specification of default directories to be used! Fix spec?
#ifndef SYSCONFDIR
#define SYSCONFDIR "/etc"
#endif
#ifndef DATADIR
#define DATADIR "/usr/share"
#endif
std::string XDGBasedir::getVariable(XDGVariables var)
{
const char *varName;
switch(var) {
case XDG_DATA_HOME:
varName = "XDG_DATA_HOME";
break;
case XDG_CONFIG_HOME:
varName = "XDG_CONFIG_HOME";
break;
case XDG_DATA_DIRS:
varName = "XDG_DATA_DIRS";
break;
case XDG_CONFIG_DIRS:
varName = "XDG_CONFIG_DIRS";
break;
case XDG_CACHE_HOME:
varName = "XDG_CACHE_HOME";
break;
case XDG_RUNTIME_DIR:
varName = "XDG_RUNTIME_DIR";
break;
default:
std::cerr << "Error: undefined variable!\n";
return "";
}
char *varValue = getenv(varName);
if (varValue)
return varValue;
char *home = NULL;
if (var == XDG_DATA_HOME || var == XDG_CONFIG_HOME ||
var == XDG_CACHE_HOME) {
home = getenv("HOME");
if (!home) {
std::cerr << "Error: $HOME is not set!\n";
return "";
}
}
std::string ret;
switch(var) {
case XDG_DATA_HOME:
ret = std::string(home) + "/.local/share";
break;
case XDG_CONFIG_HOME:
ret = std::string(home) + "/.config";
break;
case XDG_DATA_DIRS:
ret = "/usr/local/share/:/usr/share/";
break;
case XDG_CONFIG_DIRS:
// XXX: spec doesn't mention $sysconfdir here!
ret = "/etc/xdg";
break;
case XDG_CACHE_HOME:
ret = std::string(home) + "/.cache";
break;
case XDG_RUNTIME_DIR:
// "If $XDG_RUNTIME_DIR is not set applications should fall back to
// a replacement directory with similar capabilities and print a
// warning message"
std::cout << "Warning: XDG_RUNTIME_DIR not set\n";
return "";
}
return ret;
}
bool XDGBasedir::validRuntimeDir()
{
// XXX: check the spec! there are a lot of things to validate here
return true;
}
std::list<std::string> XDGBasedir::findFile(const char *fileName,
const std::string& userDir,
const std::string& systemDirs)
{
std::list<std::string> ret;
ret.push_back(std::string(userDir + '/' + fileName));
char *path = strdup(systemDirs.c_str());
char *tokStr, *tokPtr;
ITERATE_STRTOK_R(path, ":", &tokPtr, tokStr) {
std::string fullPath(std::string(tokStr) + '/' + fileName);
if (XDGUtils::fileExists(fullPath.c_str()))
ret.push_back(fullPath);
}
free(path);
return ret;
}
std::list<std::string> XDGBasedir::findDataFile(const char *fileName)
{
return findFile(fileName, getVariable(XDG_DATA_HOME),
getVariable(XDG_DATA_DIRS));
}
std::list<std::string> XDGBasedir::findConfigFile(const char *fileName)
{
return findFile(fileName, getVariable(XDG_CONFIG_HOME),
getVariable(XDG_CONFIG_DIRS));
}
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