mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-11 00:36:20 +02:00
266 lines
7.4 KiB
C++
266 lines
7.4 KiB
C++
#include "globals.hh"
|
||
#include "util.hh"
|
||
#include "archive.hh"
|
||
|
||
#include <map>
|
||
#include <algorithm>
|
||
#include <unistd.h>
|
||
|
||
|
||
namespace nix {
|
||
|
||
|
||
/* The default location of the daemon socket, relative to nixStateDir.
|
||
The socket is in a directory to allow you to control access to the
|
||
Nix daemon by setting the mode/ownership of the directory
|
||
appropriately. (This wouldn't work on the socket itself since it
|
||
must be deleted and recreated on startup.) */
|
||
#define DEFAULT_SOCKET_PATH "/daemon-socket/socket"
|
||
|
||
|
||
Settings settings;
|
||
|
||
|
||
Settings::Settings()
|
||
{
|
||
nixPrefix = NIX_PREFIX;
|
||
nixStore = canonPath(getEnv("NIX_STORE_DIR", getEnv("NIX_STORE", NIX_STORE_DIR)));
|
||
nixDataDir = canonPath(getEnv("NIX_DATA_DIR", NIX_DATA_DIR));
|
||
nixLogDir = canonPath(getEnv("NIX_LOG_DIR", NIX_LOG_DIR));
|
||
nixStateDir = canonPath(getEnv("NIX_STATE_DIR", NIX_STATE_DIR));
|
||
nixConfDir = canonPath(getEnv("NIX_CONF_DIR", NIX_CONF_DIR));
|
||
nixLibexecDir = canonPath(getEnv("NIX_LIBEXEC_DIR", NIX_LIBEXEC_DIR));
|
||
nixBinDir = canonPath(getEnv("NIX_BIN_DIR", NIX_BIN_DIR));
|
||
nixDaemonSocketFile = canonPath(nixStateDir + DEFAULT_SOCKET_PATH);
|
||
|
||
// should be set with the other config options, but depends on nixLibexecDir
|
||
#ifdef __APPLE__
|
||
preBuildHook = nixLibexecDir + "/nix/resolve-system-dependencies";
|
||
#endif
|
||
|
||
keepFailed = false;
|
||
keepGoing = false;
|
||
tryFallback = false;
|
||
maxBuildJobs = 1;
|
||
buildCores = 1;
|
||
#ifdef _SC_NPROCESSORS_ONLN
|
||
long res = sysconf(_SC_NPROCESSORS_ONLN);
|
||
if (res > 0) buildCores = res;
|
||
#endif
|
||
readOnlyMode = false;
|
||
thisSystem = SYSTEM;
|
||
maxSilentTime = 0;
|
||
buildTimeout = 0;
|
||
useBuildHook = true;
|
||
reservedSize = 8 * 1024 * 1024;
|
||
fsyncMetadata = true;
|
||
useSQLiteWAL = true;
|
||
syncBeforeRegistering = false;
|
||
useSubstitutes = true;
|
||
buildUsersGroup = getuid() == 0 ? "nixbld" : "";
|
||
useSshSubstituter = true;
|
||
impersonateLinux26 = false;
|
||
keepLog = true;
|
||
compressLog = true;
|
||
maxLogSize = 0;
|
||
pollInterval = 5;
|
||
checkRootReachability = false;
|
||
gcKeepOutputs = false;
|
||
gcKeepDerivations = true;
|
||
autoOptimiseStore = false;
|
||
envKeepDerivations = false;
|
||
lockCPU = getEnv("NIX_AFFINITY_HACK", "1") == "1";
|
||
showTrace = false;
|
||
enableImportNative = false;
|
||
netrcFile = fmt("%s/%s", nixConfDir, "netrc");
|
||
}
|
||
|
||
|
||
void Settings::loadConfFile()
|
||
{
|
||
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++;
|
||
|
||
string::size_type hash = line.find('#');
|
||
if (hash != string::npos)
|
||
line = string(line, 0, hash);
|
||
|
||
vector<string> tokens = tokenizeString<vector<string> >(line);
|
||
if (tokens.empty()) continue;
|
||
|
||
if (tokens.size() < 2 || tokens[1] != "=")
|
||
throw Error(format("illegal configuration line ‘%1%’ in ‘%2%’") % line % settingsFile);
|
||
|
||
string name = tokens[0];
|
||
|
||
vector<string>::iterator i = tokens.begin();
|
||
advance(i, 2);
|
||
settings[name] = concatStringsSep(" ", Strings(i, tokens.end())); // FIXME: slow
|
||
};
|
||
}
|
||
|
||
|
||
void Settings::set(const string & name, const string & value)
|
||
{
|
||
settings[name] = value;
|
||
overrides[name] = value;
|
||
}
|
||
|
||
|
||
string Settings::get(const string & name, const string & def)
|
||
{
|
||
auto i = settings.find(name);
|
||
if (i == settings.end()) return def;
|
||
return i->second;
|
||
}
|
||
|
||
|
||
Strings Settings::get(const string & name, const Strings & def)
|
||
{
|
||
auto i = settings.find(name);
|
||
if (i == settings.end()) return def;
|
||
return tokenizeString<Strings>(i->second);
|
||
}
|
||
|
||
|
||
bool Settings::get(const string & name, bool def)
|
||
{
|
||
bool res = def;
|
||
_get(res, name);
|
||
return res;
|
||
}
|
||
|
||
|
||
int Settings::get(const string & name, int def)
|
||
{
|
||
int res = def;
|
||
_get(res, name);
|
||
return res;
|
||
}
|
||
|
||
|
||
void Settings::update()
|
||
{
|
||
_get(tryFallback, "build-fallback");
|
||
_get(maxBuildJobs, "build-max-jobs");
|
||
_get(buildCores, "build-cores");
|
||
_get(thisSystem, "system");
|
||
_get(maxSilentTime, "build-max-silent-time");
|
||
_get(buildTimeout, "build-timeout");
|
||
_get(reservedSize, "gc-reserved-space");
|
||
_get(fsyncMetadata, "fsync-metadata");
|
||
_get(useSQLiteWAL, "use-sqlite-wal");
|
||
_get(syncBeforeRegistering, "sync-before-registering");
|
||
_get(useSubstitutes, "build-use-substitutes");
|
||
_get(buildUsersGroup, "build-users-group");
|
||
_get(impersonateLinux26, "build-impersonate-linux-26");
|
||
_get(keepLog, "build-keep-log");
|
||
_get(compressLog, "build-compress-log");
|
||
_get(maxLogSize, "build-max-log-size");
|
||
_get(pollInterval, "build-poll-interval");
|
||
_get(checkRootReachability, "gc-check-reachability");
|
||
_get(gcKeepOutputs, "gc-keep-outputs");
|
||
_get(gcKeepDerivations, "gc-keep-derivations");
|
||
_get(autoOptimiseStore, "auto-optimise-store");
|
||
_get(envKeepDerivations, "env-keep-derivations");
|
||
_get(sshSubstituterHosts, "ssh-substituter-hosts");
|
||
_get(useSshSubstituter, "use-ssh-substituter");
|
||
_get(logServers, "log-servers");
|
||
_get(enableImportNative, "allow-unsafe-native-code-during-evaluation");
|
||
_get(useCaseHack, "use-case-hack");
|
||
_get(preBuildHook, "pre-build-hook");
|
||
_get(keepGoing, "keep-going");
|
||
_get(keepFailed, "keep-failed");
|
||
_get(netrcFile, "netrc-file");
|
||
}
|
||
|
||
|
||
void Settings::_get(string & res, const string & name)
|
||
{
|
||
SettingsMap::iterator i = settings.find(name);
|
||
if (i == settings.end()) return;
|
||
res = i->second;
|
||
}
|
||
|
||
|
||
void Settings::_get(bool & res, const string & name)
|
||
{
|
||
SettingsMap::iterator i = settings.find(name);
|
||
if (i == settings.end()) return;
|
||
if (i->second == "true") res = true;
|
||
else if (i->second == "false") res = false;
|
||
else throw Error(format("configuration option ‘%1%’ should be either ‘true’ or ‘false’, not ‘%2%’")
|
||
% name % i->second);
|
||
}
|
||
|
||
|
||
void Settings::_get(StringSet & res, const string & name)
|
||
{
|
||
SettingsMap::iterator i = settings.find(name);
|
||
if (i == settings.end()) return;
|
||
res.clear();
|
||
Strings ss = tokenizeString<Strings>(i->second);
|
||
res.insert(ss.begin(), ss.end());
|
||
}
|
||
|
||
void Settings::_get(Strings & res, const string & name)
|
||
{
|
||
SettingsMap::iterator i = settings.find(name);
|
||
if (i == settings.end()) return;
|
||
res = tokenizeString<Strings>(i->second);
|
||
}
|
||
|
||
|
||
template<class N> void Settings::_get(N & res, const string & name)
|
||
{
|
||
SettingsMap::iterator i = settings.find(name);
|
||
if (i == settings.end()) return;
|
||
if (!string2Int(i->second, res))
|
||
throw Error(format("configuration setting ‘%1%’ should have an integer value") % name);
|
||
}
|
||
|
||
|
||
string Settings::pack()
|
||
{
|
||
string s;
|
||
for (auto & i : settings) {
|
||
if (i.first.find('\n') != string::npos ||
|
||
i.first.find('=') != string::npos ||
|
||
i.second.find('\n') != string::npos)
|
||
throw Error("illegal option name/value");
|
||
s += i.first; s += '='; s += i.second; s += '\n';
|
||
}
|
||
return s;
|
||
}
|
||
|
||
|
||
void Settings::unpack(const string & pack) {
|
||
Strings lines = tokenizeString<Strings>(pack, "\n");
|
||
for (auto & i : lines) {
|
||
string::size_type eq = i.find('=');
|
||
if (eq == string::npos)
|
||
throw Error("illegal option name/value");
|
||
set(i.substr(0, eq), i.substr(eq + 1));
|
||
}
|
||
}
|
||
|
||
|
||
Settings::SettingsMap Settings::getOverrides()
|
||
{
|
||
return overrides;
|
||
}
|
||
|
||
|
||
const string nixVersion = PACKAGE_VERSION;
|
||
|
||
|
||
}
|