guix/src/libstore/globals.hh
Eelco Dolstra 993fa94fb4 * Move initialisation of variables like nixConfDir from libmain to
libstore so that the Perl bindings can use it as well.  It's vital
  that the Perl bindings use the configuration file, because otherwise
  nix-copy-closure will fail with a ‘database locked’ message if the
  value of ‘use-sqlite-wal’ is changed from the default.
2011-11-22 17:28:41 +00:00

124 lines
3.5 KiB
C++

#ifndef __GLOBALS_H
#define __GLOBALS_H
#include "types.hh"
namespace nix {
/* Path names. */
/* nixStore is the directory where we generally store atomic and
derived files. */
extern string nixStore;
extern string nixDataDir; /* !!! fix */
/* nixLogDir is the directory where we log various operations. */
extern string nixLogDir;
/* nixStateDir is the directory where state is stored. */
extern string nixStateDir;
/* nixDBPath is the path name of our Berkeley DB environment. */
extern string nixDBPath;
/* nixConfDir is the directory where configuration files are
stored. */
extern string nixConfDir;
/* nixLibexecDir is the directory where internal helper programs are
stored. */
extern string nixLibexecDir;
/* nixBinDir is the directory where the main programs are stored. */
extern string nixBinDir;
/* Misc. global flags. */
/* Whether to keep temporary directories of failed builds. */
extern bool keepFailed;
/* Whether to keep building subgoals when a sibling (another subgoal
of the same goal) fails. */
extern bool keepGoing;
/* Whether, if we cannot realise the known closure corresponding to a
derivation, we should try to normalise the derivation instead. */
extern bool tryFallback;
/* Verbosity level for build output. */
extern Verbosity buildVerbosity;
/* Maximum number of parallel build jobs. 0 means unlimited. */
extern unsigned int maxBuildJobs;
/* Number of CPU cores to utilize in parallel within a build, i.e. by passing
this number to Make via '-j'. 0 means that the number of actual CPU cores on
the local host ought to be auto-detected. */
extern unsigned int buildCores;
/* Read-only mode. Don't copy stuff to the store, don't change the
database. */
extern bool readOnlyMode;
/* The canonical system name, as returned by config.guess. */
extern string thisSystem;
/* The maximum time in seconds that a builer can go without producing
any output on stdout/stderr before it is killed. 0 means
infinity. */
extern time_t maxSilentTime;
/* The maximum duration in seconds that a builder can run. 0 means
infinity. */
extern time_t buildTimeout;
/* The substituters. There are programs that can somehow realise a
store path without building, e.g., by downloading it or copying it
from a CD. */
extern Paths substituters;
/* Whether to use build hooks (for distributed builds). Sometimes
users want to disable this from the command-line. */
extern bool useBuildHook;
/* Whether buildDerivations() should print out lines on stderr in a
fixed format to allow its progress to be monitored. Each line
starts with a "@". The following are defined:
@ build-started <drvpath> <outpath> <system> <logfile>
@ build-failed <drvpath> <outpath> <exitcode> <error text>
@ build-succeeded <drvpath> <outpath>
@ substituter-started <outpath> <substituter>
@ substituter-failed <outpath> <exitcode> <error text>
@ substituter-succeeded <outpath>
Best combined with --no-build-output, otherwise stderr might
conceivably contain lines in this format printed by the builders.
*/
extern bool printBuildTrace;
Strings querySetting(const string & name, const Strings & def);
string querySetting(const string & name, const string & def);
bool queryBoolSetting(const string & name, bool def);
unsigned int queryIntSetting(const string & name, unsigned int def);
void overrideSetting(const string & name, const Strings & value);
void reloadSettings();
void setDefaultsFromEnvironment();
}
#endif /* !__GLOBALS_H */