9e975458b4
need any info on substitutable paths, we just call the substituters (such as download-using-manifests.pl) directly. This means that it's no longer necessary for nix-pull to register substitutes or for nix-channel to clear them, which makes those operations much faster (NIX-95). Also, we don't have to worry about keeping nix-pull manifests (in /nix/var/nix/manifests) and the database in sync with each other. The downside is that there is some overhead in calling an external program to get the substitutes info. For instance, "nix-env -qas" takes a bit longer. Abolishing the substitutes table also makes the logic in local-store.cc simpler, as we don't need to store info for invalid paths. On the downside, you cannot do things like "nix-store -qR" on a substitutable but invalid path (but nobody did that anyway). * Never catch interrupts (the Interrupted exception).
89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
#ifndef __GLOBALS_H
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#define __GLOBALS_H
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#include "types.hh"
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namespace nix {
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/* Path names. */
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/* nixStore is the directory where we generally store atomic and
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derived files. */
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extern string nixStore;
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extern string nixDataDir; /* !!! fix */
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/* nixLogDir is the directory where we log various operations. */
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extern string nixLogDir;
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/* nixStateDir is the directory where state is stored. */
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extern string nixStateDir;
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/* nixDBPath is the path name of our Berkeley DB environment. */
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extern string nixDBPath;
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/* nixConfDir is the directory where configuration files are
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stored. */
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extern string nixConfDir;
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/* nixLibexecDir is the directory where internal helper programs are
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stored. */
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extern string nixLibexecDir;
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/* nixBinDir is the directory where the main programs are stored. */
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extern string nixBinDir;
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/* Misc. global flags. */
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/* Whether to keep temporary directories of failed builds. */
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extern bool keepFailed;
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/* Whether to keep building subgoals when a sibling (another subgoal
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of the same goal) fails. */
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extern bool keepGoing;
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/* Whether, if we cannot realise the known closure corresponding to a
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derivation, we should try to normalise the derivation instead. */
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extern bool tryFallback;
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/* Verbosity level for build output. */
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extern Verbosity buildVerbosity;
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/* Maximum number of parallel build jobs. 0 means unlimited. */
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extern unsigned int maxBuildJobs;
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/* Read-only mode. Don't copy stuff to the store, don't change the
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database. */
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extern bool readOnlyMode;
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/* The canonical system name, as returned by config.guess. */
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extern string thisSystem;
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/* The maximum time in seconds that a builer can go without producing
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any output on stdout/stderr before it is killed. 0 means
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infinity. */
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extern unsigned int maxSilentTime;
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/* The substituters. There are programs that can somehow realise a
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store path without building, e.g., by downloading it or copying it
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from a CD. */
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extern Paths substituters;
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Strings querySetting(const string & name, const Strings & def);
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string querySetting(const string & name, const string & def);
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bool queryBoolSetting(const string & name, bool def);
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unsigned int queryIntSetting(const string & name, unsigned int def);
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}
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#endif /* !__GLOBALS_H */
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