lix/src/libstore/globals.cc

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#include "globals.hh"
#include <map>
string nixStore = "/UNINIT";
string nixDataDir = "/UNINIT";
string nixLogDir = "/UNINIT";
string nixStateDir = "/UNINIT";
string nixDBPath = "/UNINIT";
string nixConfDir = "/UNINIT";
bool keepFailed = false;
bool keepGoing = false;
bool tryFallback = false;
Verbosity buildVerbosity = lvlInfo;
unsigned int maxBuildJobs = 1;
bool readOnlyMode = false;
static bool settingsRead = false;
static map<string, string> settings;
static void readSettings()
{
Path settingsFile = (format("%1%/%2%") % nixConfDir % "nix.conf").str();
if (!pathExists(settingsFile)) return;
string contents = readFile(settingsFile);
unsigned int pos = 0;
while (pos < contents.size()) {
string line;
while (pos < contents.size() && contents[pos] != '\n')
line += contents[pos++];
pos++;
unsigned int hash = line.find('#');
if (hash != string::npos)
line = string(line, 0, hash);
if (line.find_first_not_of(" ") == string::npos) continue;
istringstream is(line);
string name, sep, value;
is >> name >> sep >> value;
if (sep != "=" || !is)
throw Error(format("illegal configuration line `%1%' in `%2%'") % line % settingsFile);
settings[name] = value;
};
settingsRead = true;
}
string querySetting(const string & name, const string & def)
{
if (!settingsRead) readSettings();
map<string, string>::iterator i = settings.find(name);
return i == settings.end() ? def : i->second;
}
bool queryBoolSetting(const string & name, bool def)
{
string value = querySetting(name, def ? "true" : "false");
if (value == "true") return true;
else if (value == "false") return false;
else throw Error(format("configuration option `%1%' should be either `true' or `false', not `%2%'")
% name % value);
}