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Only store hash of fixed derivation output

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we don’t need a full storepath for a fixedoutput derivation. So just
putting the ingestion method + the hash is sufficient.
This commit is contained in:
Matthew Bauer 2020-07-08 19:11:39 -04:00
parent af95a7c16b
commit 8e0d0689be
14 changed files with 162 additions and 121 deletions
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18
src/libstore/derivations.hh
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@ -13,10 +13,20 @@ namespace nix {
/* Abstract syntax of derivations. */
struct DerivationOutput
struct DerivationOutputIntensional
{
StorePath path;
std::optional<FixedOutputHash> hash; /* hash used for expected hash computation */
};
struct DerivationOutputFixed
{
FixedOutputHash hash; /* hash used for expected hash computation */
};
struct DerivationOutput
{
std::variant<DerivationOutputIntensional, DerivationOutputFixed> output;
StorePath path(const Store & store, string drvName) const;
};
typedef std::map<string, DerivationOutput> DerivationOutputs;
@ -42,7 +52,7 @@ struct BasicDerivation
/* Return the path corresponding to the output identifier `id' in
the given derivation. */
const StorePath & findOutput(const std::string & id) const;
const StorePath & findOutput(const Store & store, const std::string & id) const;
bool isBuiltin() const;
@ -50,7 +60,7 @@ struct BasicDerivation
bool isFixedOutput() const;
/* Return the output paths of a derivation. */
StorePathSet outputPaths() const;
StorePathSet outputPaths(const Store & store) const;
/* Return the output names of a derivation. */
StringSet outputNames() const;