diff options
Diffstat (limited to 'src/libstore/store-api.hh')
| -rw-r--r-- | src/libstore/store-api.hh | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh index 9fa137030e43..ce085ff55e89 100644 --- a/src/libstore/store-api.hh +++ b/src/libstore/store-api.hh @@ -132,6 +132,7 @@ struct BuildResult struct BasicDerivation; +struct Derivation; class StoreAPI @@ -214,6 +215,10 @@ public: virtual void exportPath(const Path & path, bool sign, Sink & sink) = 0; + /* Export multiple paths in the format expected by ‘nix-store + --import’. */ + void exportPaths(const Paths & paths, bool sign, Sink & sink); + /* Import a sequence of NAR dumps created by exportPaths() into the Nix store. */ virtual Paths importPaths(bool requireSignature, Source & source) = 0; @@ -298,6 +303,35 @@ public: /* Check the integrity of the Nix store. Returns true if errors remain. */ virtual bool verifyStore(bool checkContents, bool repair) = 0; + + /* Utility functions. */ + + /* Read a derivation, after ensuring its existence through + ensurePath(). */ + Derivation derivationFromPath(const Path & drvPath); + + /* Place in `paths' the set of all store paths in the file system + closure of `storePath'; that is, all paths than can be directly + or indirectly reached from it. `paths' is not cleared. If + `flipDirection' is true, the set of paths that can reach + `storePath' is returned; that is, the closures under the + `referrers' relation instead of the `references' relation is + returned. */ + void computeFSClosure(const Path & path, + PathSet & paths, bool flipDirection = false, + bool includeOutputs = false, bool includeDerivers = false); + + /* Given a set of paths that are to be built, return the set of + derivations that will be built, and the set of output paths + that will be substituted. */ + void queryMissing(const PathSet & targets, + PathSet & willBuild, PathSet & willSubstitute, PathSet & unknown, + unsigned long long & downloadSize, unsigned long long & narSize); + + /* Sort a set of paths topologically under the references + relation. If p refers to q, then p preceeds q in this list. */ + Paths topoSortPaths(const PathSet & paths); + }; @@ -373,23 +407,13 @@ void removeTempRoots(); /* Register a permanent GC root. */ -Path addPermRoot(StoreAPI & store, const Path & storePath, +Path addPermRoot(ref<StoreAPI> store, const Path & storePath, const Path & gcRoot, bool indirect, bool allowOutsideRootsDir = false); -/* Sort a set of paths topologically under the references relation. - If p refers to q, then p preceeds q in this list. */ -Paths topoSortPaths(StoreAPI & store, const PathSet & paths); - - -/* For now, there is a single global store API object, but we'll - purify that in the future. */ -extern std::shared_ptr<StoreAPI> store; - - /* Factory method: open the Nix database, either through the local or remote implementation. */ -std::shared_ptr<StoreAPI> openStore(bool reserveSpace = true); +ref<StoreAPI> openStore(bool reserveSpace = true); /* Display a set of paths in human-readable form (i.e., between quotes @@ -401,12 +425,6 @@ ValidPathInfo decodeValidPathInfo(std::istream & str, bool hashGiven = false); -/* Export multiple paths in the format expected by ‘nix-store - --import’. */ -void exportPaths(StoreAPI & store, const Paths & paths, - bool sign, Sink & sink); - - MakeError(SubstError, Error) MakeError(BuildError, Error) /* denotes a permanent build failure */ |