diff options
Diffstat (limited to 'src/libstore/derivations.hh')
| -rw-r--r-- | src/libstore/derivations.hh | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/libstore/derivations.hh b/src/libstore/derivations.hh index 14e0e947a..3aae30ab2 100644 --- a/src/libstore/derivations.hh +++ b/src/libstore/derivations.hh @@ -47,6 +47,9 @@ struct DerivationOutput DerivationOutputCAFloating > output; std::optional<HashType> hashAlgoOpt(const Store & store) const; + /* Note, when you use this function you should make sure that you're passing + the right derivation name. When in doubt, you should use the safer + interface provided by BasicDerivation::outputsAndPaths */ std::optional<StorePath> pathOpt(const Store & store, std::string_view drvName) const; /* DEPRECATED: Remove after CA drvs are fully implemented */ StorePath path(const Store & store, std::string_view drvName) const { @@ -58,6 +61,15 @@ struct DerivationOutput typedef std::map<string, DerivationOutput> DerivationOutputs; +/* These are analogues to the previous DerivationOutputs data type, but they + also contains, for each output, the (optional) store path in which it would + be written. To calculate values of these types, see the corresponding + functions in BasicDerivation */ +typedef std::map<string, std::pair<DerivationOutput, StorePath>> + DerivationOutputsAndPaths; +typedef std::map<string, std::pair<DerivationOutput, std::optional<StorePath>>> + DerivationOutputsAndOptPaths; + /* For inputs that are sub-derivations, we specify exactly which output IDs we are interested in. */ typedef std::map<StorePath, StringSet> DerivationInputs; @@ -107,6 +119,13 @@ struct BasicDerivation /* Return the output names of a derivation. */ StringSet outputNames() const; + /* Calculates the maps that contains all the DerivationOutputs, but + augmented with knowledge of the Store paths they would be written into. + The first one of these functions will be removed when the CA work is + completed */ + DerivationOutputsAndPaths outputsAndPaths(const Store & store) const; + DerivationOutputsAndOptPaths outputsAndOptPaths(const Store & store) const; + static std::string_view nameFromPath(const StorePath & storePath); }; @@ -128,7 +147,7 @@ enum RepairFlag : bool { NoRepair = false, Repair = true }; /* Write a derivation to the Nix store, and return its path. */ StorePath writeDerivation(ref<Store> store, - const Derivation & drv, std::string_view name, RepairFlag repair = NoRepair); + const Derivation & drv, RepairFlag repair = NoRepair); /* Read a derivation from a file. */ Derivation readDerivation(const Store & store, const Path & drvPath, std::string_view name); |