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Merge remote-tracking branch 'origin/master' into substitute-other-storedir

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This commit is contained in:
Matthew Bauer 2020-06-22 13:08:11 -04:00
commit 66a62b3189
29 changed files with 278 additions and 199 deletions
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38
src/libstore/store-api.hh
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@ -2,12 +2,14 @@
#include "path.hh"
#include "hash.hh"
#include "content-address.hh"
#include "serialise.hh"
#include "crypto.hh"
#include "lru-cache.hh"
#include "sync.hh"
#include "globals.hh"
#include "config.hh"
#include "derivations.hh"
#include <atomic>
#include <limits>
@ -17,6 +19,7 @@
#include <memory>
#include <string>
#include <chrono>
#include <variant>
namespace nix {
@ -31,15 +34,12 @@ MakeError(SubstituterDisabled, Error);
MakeError(NotInStore, Error);
struct BasicDerivation;
struct Derivation;
class FSAccessor;
class NarInfoDiskCache;
class Store;
class JSONPlaceholder;
enum RepairFlag : bool { NoRepair = false, Repair = true };
enum CheckSigsFlag : bool { NoCheckSigs = false, CheckSigs = true };
enum SubstituteFlag : bool { NoSubstitute = false, Substitute = true };
enum AllowInvalidFlag : bool { DisallowInvalid = false, AllowInvalid = true };
@ -111,7 +111,6 @@ struct SubstitutablePathInfo
typedef std::map<StorePath, SubstitutablePathInfo> SubstitutablePathInfos;
struct ValidPathInfo
{
StorePath path;
@ -140,21 +139,11 @@ struct ValidPathInfo
that a particular output path was produced by a derivation; the
path then implies the contents.)
Ideally, the content-addressability assertion would just be a
Boolean, and the store path would be computed from
the name component, ‘narHash’ and ‘references’. However,
1) we've accumulated several types of content-addressed paths
over the years; and 2) fixed-output derivations support
multiple hash algorithms and serialisation methods (flat file
vs NAR). Thus, ‘ca’ has one of the following forms:
* ‘text:sha256:<sha256 hash of file contents>’: For paths
computed by makeTextPath() / addTextToStore().
* ‘fixed:<r?>:<ht>:<h>’: For paths computed by
makeFixedOutputPath() / addToStore().
Ideally, the content-addressability assertion would just be a Boolean,
and the store path would be computed from the name component, ‘narHash’
and ‘references’. However, we support many types of content addresses.
*/
std::string ca;
std::optional<ContentAddress> ca;
bool operator == (const ValidPathInfo & i) const
{
@ -356,7 +345,7 @@ public:
StorePath makeTextPath(std::string_view name, const Hash & hash,
const StorePathSet & references = {}) const;
StorePath makeFixedOutputPathFromCA(std::string_view name, std::string ca,
StorePath makeFixedOutputPathFromCA(std::string_view name, ContentAddress ca,
const StorePathSet & references = {},
bool hasSelfReference = false) const;
@ -846,18 +835,9 @@ std::optional<ValidPathInfo> decodeValidPathInfo(
std::istream & str,
bool hashGiven = false);
/* Compute the prefix to the hash algorithm which indicates how the files were
ingested. */
std::string makeFileIngestionPrefix(const FileIngestionMethod m);
/* Compute the content-addressability assertion (ValidPathInfo::ca)
for paths created by makeFixedOutputPath() / addToStore(). */
std::string makeFixedOutputCA(FileIngestionMethod method, const Hash & hash);
/* Split URI into protocol+hierarchy part and its parameter set. */
std::pair<std::string, Store::Params> splitUriAndParams(const std::string & uri);
std::optional<std::string> getDerivationCA(const BasicDerivation & drv);
std::optional<ContentAddress> getDerivationCA(const BasicDerivation & drv);
}