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Merge remote-tracking branch 'upstream/master' into drv-outputs-map-allow-missing

This commit is contained in:
John Ericson 2020-08-04 18:35:33 +00:00
commit fbeb8695fb
12 changed files with 170 additions and 125 deletions

View file

@ -10,6 +10,7 @@
#include "globals.hh"
#include "config.hh"
#include "derivations.hh"
#include "path-info.hh"
#include <atomic>
#include <limits>
@ -101,95 +102,6 @@ struct GCResults
};
struct SubstitutablePathInfo
{
std::optional<StorePath> deriver;
StorePathSet references;
uint64_t downloadSize; /* 0 = unknown or inapplicable */
uint64_t narSize; /* 0 = unknown */
};
typedef std::map<StorePath, SubstitutablePathInfo> SubstitutablePathInfos;
struct ValidPathInfo
{
StorePath path;
std::optional<StorePath> deriver;
// TODO document this
std::optional<Hash> narHash;
StorePathSet references;
time_t registrationTime = 0;
uint64_t narSize = 0; // 0 = unknown
uint64_t id; // internal use only
/* Whether the path is ultimately trusted, that is, it's a
derivation output that was built locally. */
bool ultimate = false;
StringSet sigs; // note: not necessarily verified
/* If non-empty, an assertion that the path is content-addressed,
i.e., that the store path is computed from a cryptographic hash
of the contents of the path, plus some other bits of data like
the "name" part of the path. Such a path doesn't need
signatures, since we don't have to trust anybody's claim that
the path is the output of a particular derivation. (In the
extensional store model, we have to trust that the *contents*
of an output path of a derivation were actually produced by
that derivation. In the intensional model, we have to trust
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, we support many types of content addresses.
*/
std::optional<ContentAddress> ca;
bool operator == (const ValidPathInfo & i) const
{
return
path == i.path
&& narHash == i.narHash
&& references == i.references;
}
/* Return a fingerprint of the store path to be used in binary
cache signatures. It contains the store path, the base-32
SHA-256 hash of the NAR serialisation of the path, the size of
the NAR, and the sorted references. The size field is strictly
speaking superfluous, but might prevent endless/excessive data
attacks. */
std::string fingerprint(const Store & store) const;
void sign(const Store & store, const SecretKey & secretKey);
/* Return true iff the path is verifiably content-addressed. */
bool isContentAddressed(const Store & store) const;
static const size_t maxSigs = std::numeric_limits<size_t>::max();
/* Return the number of signatures on this .narinfo that were
produced by one of the specified keys, or maxSigs if the path
is content-addressed. */
size_t checkSignatures(const Store & store, const PublicKeys & publicKeys) const;
/* Verify a single signature. */
bool checkSignature(const Store & store, const PublicKeys & publicKeys, const std::string & sig) const;
Strings shortRefs() const;
ValidPathInfo(const ValidPathInfo & other) = default;
ValidPathInfo(StorePath && path) : path(std::move(path)) { };
ValidPathInfo(const StorePath & path) : path(path) { };
virtual ~ValidPathInfo() { }
};
typedef list<ValidPathInfo> ValidPathInfos;
enum BuildMode { bmNormal, bmRepair, bmCheck };
@ -462,7 +374,7 @@ public:
libutil/archive.hh). */
virtual StorePath addToStore(const string & name, const Path & srcPath,
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256,
PathFilter & filter = defaultPathFilter, RepairFlag repair = NoRepair) = 0;
PathFilter & filter = defaultPathFilter, RepairFlag repair = NoRepair);
/* Copy the contents of a path to the store and register the
validity the resulting path, using a constant amount of
@ -471,6 +383,10 @@ public:
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256,
std::optional<Hash> expectedCAHash = {});
/* Like addToStore(), but the contents of the path are contained
in `dump', which is either a NAR serialisation (if recursive ==
true) or simply the contents of a regular file (if recursive ==
false). */
// FIXME: remove?
virtual StorePath addToStoreFromDump(Source & dump, const string & name,
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair)