forked from lix-project/lix
a2d92bb20e
And add a 116 KiB ash shell from busybox to the release build. This helps to make sandbox builds work out of the box on non-NixOS systems and with diverted stores.
109 lines
3.3 KiB
C++
109 lines
3.3 KiB
C++
#include "globals.hh"
|
||
#include "util.hh"
|
||
#include "archive.hh"
|
||
#include "args.hh"
|
||
|
||
#include <algorithm>
|
||
#include <map>
|
||
#include <thread>
|
||
|
||
|
||
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"
|
||
|
||
/* chroot-like behavior from Apple's sandbox */
|
||
#if __APPLE__
|
||
#define DEFAULT_ALLOWED_IMPURE_PREFIXES "/System/Library /usr/lib /dev /bin/sh"
|
||
#else
|
||
#define DEFAULT_ALLOWED_IMPURE_PREFIXES ""
|
||
#endif
|
||
|
||
Settings settings;
|
||
|
||
Settings::Settings()
|
||
: Config({})
|
||
, 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))
|
||
{
|
||
buildUsersGroup = getuid() == 0 ? "nixbld" : "";
|
||
lockCPU = getEnv("NIX_AFFINITY_HACK", "1") == "1";
|
||
caFile = getEnv("NIX_SSL_CERT_FILE", getEnv("SSL_CERT_FILE", "/etc/ssl/certs/ca-certificates.crt"));
|
||
|
||
/* Backwards compatibility. */
|
||
auto s = getEnv("NIX_REMOTE_SYSTEMS");
|
||
if (s != "") builderFiles = tokenizeString<Strings>(s, ":");
|
||
|
||
#if defined(__linux__) && defined(SANDBOX_SHELL)
|
||
sandboxPaths = tokenizeString<StringSet>("/bin/sh=" SANDBOX_SHELL);
|
||
#endif
|
||
|
||
allowedImpureHostPrefixes = tokenizeString<StringSet>(DEFAULT_ALLOWED_IMPURE_PREFIXES);
|
||
}
|
||
|
||
void Settings::loadConfFile()
|
||
{
|
||
applyConfigFile(nixConfDir + "/nix.conf");
|
||
|
||
/* We only want to send overrides to the daemon, i.e. stuff from
|
||
~/.nix/nix.conf or the command line. */
|
||
resetOverriden();
|
||
|
||
applyConfigFile(getConfigDir() + "/nix/nix.conf");
|
||
}
|
||
|
||
void Settings::set(const string & name, const string & value)
|
||
{
|
||
Config::set(name, value);
|
||
}
|
||
|
||
unsigned int Settings::getDefaultCores()
|
||
{
|
||
return std::max(1U, std::thread::hardware_concurrency());
|
||
}
|
||
|
||
const string nixVersion = PACKAGE_VERSION;
|
||
|
||
template<> void BaseSetting<SandboxMode>::set(const std::string & str)
|
||
{
|
||
if (str == "true") value = smEnabled;
|
||
else if (str == "relaxed") value = smRelaxed;
|
||
else if (str == "false") value = smDisabled;
|
||
else throw UsageError("option '%s' has invalid value '%s'", name, str);
|
||
}
|
||
|
||
template<> std::string BaseSetting<SandboxMode>::to_string()
|
||
{
|
||
if (value == smEnabled) return "true";
|
||
else if (value == smRelaxed) return "relaxed";
|
||
else if (value == smDisabled) return "false";
|
||
else abort();
|
||
}
|
||
|
||
template<> void BaseSetting<SandboxMode>::toJSON(JSONPlaceholder & out)
|
||
{
|
||
AbstractSetting::toJSON(out);
|
||
}
|
||
|
||
void MaxBuildJobsSetting::set(const std::string & str)
|
||
{
|
||
if (str == "auto") value = std::max(1U, std::thread::hardware_concurrency());
|
||
else if (!string2Int(str, value))
|
||
throw UsageError("configuration setting ‘%s’ should be ‘auto’ or an integer", name);
|
||
}
|
||
|
||
}
|